Stockholders' Equity Note [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Legal Entity [Axis] Entity [Domain] JPMorgan Chase & Co. Parent Company [Member] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Common stock Common Stock [Member] Treasury stock, at cost Treasury Stock [Member] Warrants, each to purchase one share of Common Stock Warrant [Member] Authorized Repurchase Program Plan and Period [Axis] Identifies the repurchase program plan and authorized purchase period. Stock Repurchase Plans, Authorized Repurchase Periods [Domain] Stock Repurchase Plans, Authorized Repurchase Periods [Domain] Approved Repurchase Program Period Start in 2011 [Member] Stock repurchase program authorized for a period beginning in 2011. Repurchase Program Authorized Period of 2011 [Member] The amount authorized under a stock repurchase program to be repurchase during the calendar year of 2011. Approved Repurchase Program Period Start in 2007 [Member] Stock repurchase program authorized for a period beginning in 2007. Statement, Equity Components [Axis] Statement, Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Additional Paid-in Capital [Member] Additional Paid-in Capital [Member] Class of Stock [Line Items] Class of Stock [Line Items] Common Stock, Shares Authorized Common Stock, Shares Authorized Common Stock, Par or Stated Value Per Share Common Stock, Par or Stated Value Per Share Stock Issued During Period, Value, New Issues Stock Issued During Period, Value, New Issues Stock Issued During Period Value New Issues Per Share Stock Issued During Period Value New Issues Per Share Equity impact per share of the value of new stock issued during the period. Common shares issued (newly issued or distributed from treasury) [Abstract] Common Shares Issued From Treasury [Abstract] Schedule detailing information related to common stock transactions. Increase (Decrease) in Common Stock Shares Increase (Decrease) in Stockholders' Equity [Roll Forward] Issued - balance at January 1 Common Stock, Shares, Issued New open market issuances Stock Issued During Period, Shares, New Issues Total issued - balance at December 31 Increase (Decrease) in Treasury Stock Shares Increase Decrease in Treasury Stock [Roll Forward] Increase Decrease in Treasury Stock [Roll Forward] Treasury - balance at January 1 Treasury Stock, Shares Purchase of treasury stock Treasury Stock, Shares, Acquired Share repurchases related to employee stock-based awards Share Repurchases Related To Employee Stock Based Compensation Awards Shares Shares of common and preferred stock that were repurchased when employees exercised their stock-based compensation awards. Issued from treasury: Employee benefits and compensation plans Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Issued from treasury: Employee stock purchase plans Stock Issued During Period, Shares, Employee Stock Purchase Plans Total issued from treasury Stock Issued During Period, Shares, Treasury Stock Reissued, Including Employee Stock Purchase and Equity-based Compensation Plans Number of treasury shares reissued during the period. Upon reissuance, these are common and preferred shares outstanding. The element includes treasury stock reissued for the purposes of employee stock purchase plans and equity-based employee benefits and compensation plans. Total treasury - balance at December 31 Outstanding Common Stock, Shares, Outstanding U.S. Treasury Capital Purchase Program Capital Purchase Program [Abstract] Capital Purchase Program [Abstract] US Treasury Warrant to purchase shares of the Firm's common stock, number of shares Class of Warrant or Right, Number of Securities Called by Warrants or Rights Exercise price for US Treasury Warrant to purchase shares of the Firm's common stock Class of Warrant or Right, Exercise Price of Warrants or Rights US Treasury Warrant Exchange and Secondary Offering Us Treasury Warrant Exchange and Secondary Offering A description of the U.S. Warrant exchange and secondary offering. Sale amount of US Treasury Warrant in secondary public offering US Treasury Warrant Exchange and Secondary Offering Sale Amount The amount for which the US Treasury sold exchanged warrants in a secondary public offering. Class of Warrant or Right, Outstanding Common equity repurchase program Common Equity Repurchase Program [Abstract] Common Equity Repurchase Program [Abstract] Stock Repurchase Program Amount Authorized for Repurchase of Common Equity Stock Repurchase Program, Authorized Amount Common Equity Repurchased During Period Units Common Equity Repurchased During Period Units Number of units of common equity (i.e. common stock and/or warrants) repurchased during the period. Units of common equity repurchased by the Firm Stock Repurchased During Period, Shares Cost of units of common equity repurchased by the Firm Common Equity Acquired Cost Method Equity impact of the cost of common equity (i.e. common stock and warrants) that were repurchased during the period. Recorded using the cost method. Cost of units of common equity repurchased by the Firm Treasury Stock, Value, Acquired, Cost Method Average price per unit of common equity repurchased by the Firm Common Equity Acquired Average Cost Per Unit Total cost of common equity repurchased divided by the total number of units of common equity (i.e. common stock and warrants) repurchased. Average price per unit of common equity repurchased by the Firm Treasury Stock Acquired, Average Cost Per Share Warrants Repurchased During Period Units Warrants Repurchased During Period Number of warrants repurchased during the period Common Stock, Capital Shares Reserved for Future Issuance Common Stock, Capital Shares Reserved for Future Issuance Adjustments to Additional Paid in Capital, Other Adjustments to Additional Paid in Capital, Other Accounts Payable and Other Liabilities [Abstract] Accounts payable and other liabilities. Accounts Payable and Other Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Securities (Details) [Abstract] Securities. Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis] Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis] Major Types of Debt and Equity Securities [Domain] Major Types of Debt and Equity Securities [Domain] Equity securities [Member] Equity Securities [Member] Debt Securities [Member] Debt Securities [Member] Mortgage-backed securities [Member] Collateralized Mortgage Backed Securities [Member] U.S. Treasury and government agencies [Member] US Treasury and Government [Member] Obligations of U.S. states and municipalities [Member] US States and Political Subdivisions Debt Securities [Member] Certificates of Deposit [Member] Certificates of Deposit [Member] Non-U.S. government debt securities [Member] Foreign Government Debt Securities [Member] Corporate Debt Securities [Member] Corporate Debt Securities [Member] Asset-backed securities Asset-backed Securities [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Schedule of Available-for-sale Securities [Line Items] Schedule of Available-for-sale Securities [Line Items] Amortized cost and estimated fair value by contractual maturity Amortized Cost And Estimated Fair Value By Contractual Maturity Abstract Amortized Cost and Estimated Fair Value by Contractual Maturity Abstract. Available-for-sale securities, due in 1 year or less, amortized cost Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis Available-for-sale securities, due after 1 year through 5 years, amortized cost Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis Available-for-sale securities, due after 5 years through 10 years, amortized cost Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis Available-for-sale securities, due after 10 years, amortized cost Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis Available-for-sale Securities, Debt Maturities, Amortized Cost Available-for-sale Securities, Debt Maturities, Amortized Cost Basis Available-for-sale securities, due in 1 year or less, fair value Available-for-sale Securities, Debt Maturities, within One Year, Fair Value Available-for-sale securities, due after 1 year through 5 years, fair value Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value Available-for-sale securities, due after 5 years through 10 years, fair value Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value Available-for-sale securities, due after 10 years, fair value Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value Available-for-sale securities, fair value, total Available-for-sale Securities, Debt Securities Available-for-sale securities, average yield, due in 1 year or less Available For Sale Securities Debt Maturities Average Yield Within One Year This item represents the average yield on debt securities which are expected to mature within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, average yield, due after 1 year through 5 years Available For Sale Securities Debt Maturities Average Yield After One Through Five Years This item represents the average yield on debt securities which are expected to mature after one through five years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, average yield, due after 5 years through 10 years Available For Sale Securities Debt Maturities Average Yield After Five Through Ten Years This item represents the average yield on debt securities which are expected to mature after five through ten years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, average yield, due after 10 years Available For Sale Securities Debt Maturities Average Yield After Ten Years This item represents the average yield on debt securities which are expected to mature after ten years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, average yield, total Available For Sale Securities Debt Maturities Average Yield This item represents average yield on the total of all debt securities grouped by maturity dates, which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, due in 1 year or less, amortized cost Available For Sale Securities Equity Maturities Within One Year Amortized Cost This item represents equity securities, at cost, with maturities within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, due after 1 year through 5 years, amortized cost Available For Sale Securities Equity Maturities After One Through Five Years Amortized Cost This item represents equity securities, at cost, with maturities after one through five years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, due after 5 years through 10 years, amortized cost Available For Sale Securities Equity Maturities After Five Through Ten Years Amortized Cost This item represents equity securities, at cost, with maturities after five through ten years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, due after 10 years, amortized cost Available For Sale Securities Equity Maturities After Ten Years Amortized Cost This item represents equity securities, at cost, with no stated maturities and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, amortized cost, total Available For Sale Securities Equity Maturities Amortized Cost This item represents the total of all equity securities, at cost, with no stated maturity dates, which are classified neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, due in 1 year or less, fair value Available For Sale Securities Equity Maturities Within One Year Fair Value This item represents the fair value of equity securities which are expected to mature within one year from the balance sheet date which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, due after 1 year through 5 years, fair value Available For Sale Securities Equity Maturities After One Through Five Years Fair Value This item represents the fair value of equity securities which are expected to mature after one through five years from the balance sheet date which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, due after 5 years through 10 years, fair value Available For Sale Securities Equity Maturities After Five Through Ten Years Fair Value This item represents the fair value of equity securities which are expected to mature after one through five years from the balance sheet date which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, due after 10 years, fair value Available For Sale Securities Equity Maturities After Ten Years Fair Value This item represents the fair value of equity securities which have no stated maturity dates, which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, fair value, total Available For Sale Securities Equity Maturities Fair Value This item represents the total of all equity securities grouped by maturity dates, at fair value, which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, average yield, due in 1 year or less Available For Sale Securities Equity Maturities Average Yield Within One Year This item represents the average yield on equity securities with maturities within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, average yield, due after 1 year through 5 years Available For Sale Securities Equity Maturities Average Yield After One Through Five Years This item represents the average yield on equity securities with maturities after one through five years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, average yield, due after 5 years through 10 years Available For Sale Securities Equity Maturities Average Yield After Five Through Ten Years This item represents the average yield on equity securities with maturities after five through ten years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, average yield, due after 10 years Available For Sale Securities Equity Maturities Average Yield After Ten Years This item represents the average yield on equity securities which have no stated maturity dates, which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, equity maturities, average yield, total Available For Sale Securities Equity Maturities Average Yield This item represents average yield on the total of all equity securities grouped by maturity dates, at fair value, which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, due in 1 year or less, amortized cost Available For Sale Securities Maturities Within One Year Amortized Cost This item represents securities, at cost, with maturities within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, due after 1 year through 5 years, amortized cost Available For Sale Securities Maturities After One Through Five Years Amortized Cost This item represents securities, at cost, with maturities after one through five years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, due after 5 years through 10 years, amortized cost Available For Sale Securities Maturities After Five Through Ten Years Amortized Cost This item represents securities, at cost, with maturities after five through ten years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, due after 10 years, amortized cost Available For Sale Securities Maturities After Ten Years Amortized Cost This item represents securities, at cost, with maturities after ten years and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, amortized cost, total Available-for-sale Securities, Amortized Cost Basis Available-for-sale securities, maturities, due in 1 year or less, fair value Available For Sale Securities Maturities Within One Year Fair Value This item represents the fair value of securities which are expected to mature within one year from the balance sheet date which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, due after 1 year through 5 years, fair value Available For Sale Securities Maturities After One Through Five Years Fair Value This item represents the fair value of securities which are expected to mature after one through five years from the balance sheet date which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, due after 5 years through 10 years, fair value Available For Sale Securities Maturities After Five Through Ten Years Fair Value This item represents the fair value of securities which are expected to mature after five through ten years from the balance sheet date which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, due after 10 years, fair value Available For Sale Securities Maturities After Ten Years Fair Value This item represents the fair value of securities with maturities after ten years, which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, fair value, total Available-for-sale Securities Available-for-sale securities, maturities, average yield, due in 1 year or less Available For Sale Securities Maturities Average Yield Within One Year This item represents the average yield on securities with maturities within one year of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, average yield, due after 1 year through 5 years Available For Sale Securities Maturities Average Yield After One Through Five Years This item represents the average yield on securities with maturities after one through five years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, average yield, due after 5 years through 10 years Available For Sale Securities Maturities Average Yield After Five Through Ten Years This item represents the average yield on securities with maturities after five through ten years of the balance sheet date and which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, average yield, due after 10 years Available For Sale Securities Maturities Average Yield After Ten Years This item represents the average yield on securities with maturities after ten years, which are categorized neither as held-to-maturity nor trading securities. Available-for-sale securities, maturities, average yield, total Available For Sale Securities Maturities Average Yield This item represents average yield on the total of all securities grouped by maturity dates, at fair value, which are categorized neither as held-to-maturity nor trading securities. Held-to-maturity securities, maturities, due in 1 year or less, amortized cost Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount Held-to-maturity securities, maturities, due after 1 year through 5 years, amortized cost Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount Held-to-maturity securities, maturities, due after 5 years through 10 years, amortized cost Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount Held-to-maturity securities, maturities, due after 10 years, amortized cost Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount Held-to-maturity securities, maturities, amortized cost, total Held-to-maturity Securities, Debt Maturities, Net Carrying Amount Held-to-maturity securities, maturities, due in 1 year or less, fair value Held-to-maturity Securities, Debt Maturities, within One Year, Fair Value Held-to-maturity securities, maturities, due after 1 year through 5 years, fair value Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Fair Value Held-to-maturity securities, maturities, due after 5 years through 10 years, fair value Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Fair Value Held-to-maturity securities, maturities, due after 10 years, fair value Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value Held-to-maturity securities, maturities, fair value, total Held-to-maturity Securities, Debt Maturities, Fair Value Held-to-maturity securities, maturities, average yield, due in 1 year or less Held To Maturity Securities Debt Maturities Average Yield Within One Year This item represents the average yield on debt securities with maturities within one year of the balance sheet date and which are categorized as held-to-maturity. Held-to-maturity securities, maturities, average yield, due after 1 year through 5 years Held To Maturity Securities Debt Maturities Average Yield After One Through Five Years This item represents the average yield on debt securities with maturities expected to mature after one through five years from the balance sheet date and which are categorized as held-to-maturity. Held-to-maturity securities, maturities, average yield, due after 5 years through 10 years Held To Maturity Securities Debt Maturities Average Yield After Five Through Ten Years This item represents the average yield on debt securities with maturities after five through ten years as of the balance sheet date and which are categorized as held-to-maturity. Held-to-maturity securities, maturities, average yield, due after 10 years Held To Maturity Securities Debt Maturities Average Yield After Ten Years This item represents the average yield on debt securities with maturities due after ten years as of the balance sheet date and which are categorized as held-to-maturity. Held-to-maturity securities, maturities, average yield, total Held To Maturity Securities Debt Maturities Average Yield This item represents average yield on the total of all debt securities grouped by maturity dates, at fair value, which are categorized as held-to-maturity. Supplemental information Supplemental Information [Abstract] Supplemental Information [Abstract] U S Government And Government Agencies And Authorities And U S Government Sponsored Enterprise Securities In Excess Of Ten Percent Of Stockholders Equity U S Government And Government Agencies And Authorities And U S Government Sponsored Enterprise Securities In Excess Of Ten Percent Of Stockholders Equity This element represents the percentage of securities issued by U.S. government agencies and U.S. government-sponsored enterprises that exceeded ten percent of stockholders' equity. Due Period Of Mortgage Backed Securities And Collateralized Mortgage Obligations Due Period Of Mortgage Backed Securities And Collateralized Mortgage Obligations Due period of mortgage-backed securities and collateralized mortgage obligations. Non Agency Residential Collateralized Mortgage Obligations Estimated Duration Non Agency Residential Collateralized Mortgage Obligations Estimated Duration This item represents the estimated duration, which reflects anticipated future prepayments based on a consensus of dealers in the market, on non-agency residential collateralized mortgage obligations. US Government Agencies And US Government sponsored Enterprises Residential Mortgage Backed Securities Estimated Duration US Government Agencies And US Government sponsored Enterprises Residential Mortgage Backed Securities Estimated Duration This item represents the estimated duration, which reflects anticipated future prepayments based on a consensus of dealers in the market, on residential mortgage-backed securities issued by US Government Agencies, such as the Government National Mortgage Association (GNMA or Ginnie Mae), and US Government-sponsored Enterprises, such as the Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB). US Government Agencies And US Government-sponsored Enterprises, Residential Collateralized Mortgage Obligations, Estimated Duration US Government Agencies And US Government-sponsored Enterprises, Residential Collateralized Mortgage Obligations, Estimated Duration This item represents the estimated duration, which reflects anticipated future prepayments based on a consensus of dealers in the market, on residential collateralized mortgage obligations issued by US Government Agencies, such as the Government National Mortgage Association (GNMA or Ginnie Mae), and US Government-sponsored Enterprises, such as the Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB). Accumulated Other-than-Temporary Impairment [Member] US Government Corporations and Agencies Securities [Member] US Government Corporations and Agencies Securities [Member] Commercial mortgage Commercial Mortgage Backed Securities [Member] Residential mortgage [Member] Residential Mortgage Backed Securities [Member] Prime and Alt A [Member] Prime and Alt-A [Member] Prime And Alt A. Subprime [Member] Subprime [Member] Subprime. Non-U.S. [Member] Foreign Mortgage-backed Securities [Member] Mortgage-backed Securities from countries other than the entity's country of domicile. Credit card receivables, Asset Backed Securities [Member] Asset-backed Securities, Securitized Loans and Receivables [Member] Collateralized debt obligations, Asset Backed Securities [Member] Collateralized Debt And Loan Obligations Asset Backed Securities Member Collateralized debt and loan obligations, Asset Backed Securities Member. Collateralized loan obligations Collateralized Loan Obligations [Member] Other, Debt Securities [Member] Other Debt Obligations [Member] Amortized costs and estimated fair values Amortized Costs And Estimated Fair Values Abstract Amortized Costs And Estimated Fair Values. Available-for-sale Securities, Amortized Cost Available-for-sale Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Gains Available-for-sale Securities, Gross Unrealized Losses Available-for-sale Securities, Gross Unrealized Losses Available-for-sale Securities Held-to-maturity Securities, Amortized Cost Held-to-maturity Securities Held-to-maturity Securities, Gross unrealized gains Held-to-maturity Securities, Unrecognized Holding Gain Held-to-maturity Securities, Gross unrealized losses Held-to-maturity Securities, Unrecognized Holding Loss Held-to-maturity Securities, Fair Value Held-to-maturity Securities, Fair Value U.S. government-sponsored enterprise obligations, fair values U S Government-sponsored Enterprise Obligations Fair Values Debt securities collateralized by real estate mortgage loans (mortgages), issued by US Government Sponsored Enterprises, such as Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), fair value. Basis of Presentation [Abstract] Basis of Presentation Abstract BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Fair Value Option [Abstract] Fair Value Option. Fair Value, Option, Quantitative Disclosures [Table] Fair Value, Option, Quantitative Disclosures [Table] Fair Value by Measurement Basis [Axis] Fair Value by Measurement Basis [Axis] Fair Value, Disclosure Item Amounts [Domain] Fair Value, Disclosure Item Amounts [Domain] Carrying value Carrying (Reported) Amount, Fair Value Disclosure [Member] Portion at Fair Value, Fair Value Disclosure [Member] Portion at Fair Value, Fair Value Disclosure [Member] Change During Period, Fair Value Disclosure [Member] Change During Period, Fair Value Disclosure [Member] Fair Value by Asset Class [Axis] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Class [Domain] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Class [Domain] Trading assets Trading Account Assets [Member] Total loans Loans [Member] Principal Protected Debt Principal Protected Debt [Member] Principal Protected Debt. Non Principal Protected Debt Non Principal Protected Debt [Member] Non Principal Protected Debt. Fair Value, Option, Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] Difference between aggregate fair value and aggregate remaining contractual principal balance outstanding Fair Value, Option, Aggregate Differences [Abstract] Loans Fair Value, Option, Loans Held as Assets [Abstract] Nonaccrual loans Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status Nonaccrual loans Fair Value Option Loans Held As Asset Aggregate Amount In Non Accrual Status This item represents loans held as assets that are in nonaccrual status for which the fair value option has been elected, if the entity's policy is to recognize interest income separately from other changes in fair value. All other performing loans Fair Value Options Other Performing Loans Fair Value Options Other Performing Loans. Total loans Fair Value Options Loans Held As Assets Represents the portion of loans held as assets for which the fair value option has been elected, valued at fair value. Long-term debt Other Long-term Debt [Abstract] Long-term debt Long-term Debt Total long term debt Fair Value Option Long term debt At Fair Value Represents the portion of long-term debt for which the fair value option has been elected, valued at fair value. Long-term beneficial interests Long Term Beneficial Interests Abstract Long term beneficial interests. Total long-term beneficial interests Long Term Beneficial Interests Long Term Beneficial Interests. Income Tax Disclosure [Abstract] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table] Schedule of Deferred Tax Assets and Liabilities [Table] Income Tax Authority Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Internal Revenue Service (IRS) [Member] State and Local Jurisdiction [Member] Foreign Country [Member] Foreign Country [Member] Income Tax Expense Benefit [Line Items] Deferred Tax Assets and Liabilities [Line Items] Deferred Tax Assets and Liabilities [Line Items] Significant Components of Deferred Tax Assets and Liabilities Components of Deferred Tax Assets and Liabilities [Abstract] Deferred tax assets Deferred Tax Assets, Gross [Abstract] Allowance for loan losses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Provision for Loan Losses Employee benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Allowance for other than loan losses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Loss Reserves Non-U.S. operations Deferred Tax Assets, Foreign Operations The tax effect as of the balance sheet date of the amount of all future tax deductions arising from foreign operations. Tax attribute carryforwards Deferred Tax Assets, Tax Attribute Carry Forwards The tax effect as of the balance sheet date of the amount of all future tax deductions and credits arising from all unused carryforwards. Fee income Deferred Tax Assets, Deferred Income Fair value adjustments Deferred Tax Assets Fair Value Adjustments The cumulative amount of the estimated future tax effects attributable to fair value adjustments that were expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, or which were recognized as revenue under GAAP but not for tax purposes, which will reverse in future periods. Gross deferred tax assets Deferred Tax Assets, Gross Deferred Tax Assets, Net Deferred Tax Assets, Net Deferred tax liabilities Deferred Tax Liabilities [Abstract] Depreciation and amortization Deferred Tax Liabilities, Property, Plant and Equipment Leasing transactions Deferred Tax Liabilities, Leasing Arrangements Non-U.S. operations Deferred Tax Liabilities, Undistributed Foreign Earnings Fee income Deferred Tax Liabilities, Tax Deferred Income Fair value adjustments Deferred Tax Liabilities Fair Value Adjustments The cumulative amount of the estimated future tax effects attributable to fair value adjustments that were expensed for tax purposes but capitalized in conformity with generally accepted accounting principles, or which were recognized as revenue under GAAP but not for tax purposes, which will reverse in future periods. Other, net Deferred Tax Liabilities, Other Gross deferred tax liabilities Deferred Tax Liabilities Valuation allowance Deferred Tax Assets, Valuation Allowance Net deferred tax asset Deferred Tax Assets (Liabilities), Net Deferred Tax Assets and Liabilities - supplemental information Components of Deferred Tax Assets and Liabilities Supplemental Information [Abstract] Components of Deferred Tax Assets and Liabilities Supplemental Information [Abstract] Non-U.S. subsidiary net operating loss carryforward Operating Loss Carryforwards Operating Loss Carryforwards, Expiration Dates Operating Loss Carryforwards, Expiration Dates U.S. foreign tax credit carryforward Tax Credit Carryforward, Amount Valuation Allowance, Deferred Tax Asset, Change in Amount Valuation Allowance, Deferred Tax Asset, Change in Amount Unrecognized tax benefits, excluding related interest expense and penalties Unrecognized Tax Benefits Reduction of the annual effective tax rate due to unrecognized tax benefits, if recognized Unrecognized Tax Benefits that Would Impact Effective Tax Rate Parent Company [Abstract] Condensed Financial Information of Parent Company Only Disclosure. Schedule of Condensed Financial Statements [Table] Schedule of Condensed Financial Statements [Table] Legal Entity [Axis] Entity [Domain] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Schedule of Condensed Financial Information of Parent Company Only [Table Text Block] Schedule of Condensed Financial Information of Parent Company Only [Table Text Block] Tabular disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document. Variable Interest Entities (Details) [Abstract] Variable Interest Entities. Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Variable Interest Entities by Classification of Entity [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity (VIE) or Potential VIE, Information Unavailability [Member] Guarantor Obligations by Underlying Asset Class [Axis] Guarantor Obligations by Underlying Asset Class [Axis] Underlying Asset Class [Domain] Underlying Asset Class [Domain] Residential Mortgage [Member] Residential Mortgage [Member] Collateralized Credit Card Securities [Member] Collateralized Credit Card Securities [Member] Prime [Member] Prime Residential mortgage Member Prime mortgage loans generally have low default risk and are made to borrowers with good credit records and a monthly income that is at least three to four times greater than their monthly housing expense (mortgage payments plus taxes and other debt payments). These borrowers provide full documentation and generally have reliable payment histories. Subprime [Member] Sub Prime Residential mortgage Member Subprime loans are designed for customers with one or more high risk characteristics, including but not limited to: (i) unreliable or poor payment histories; (ii) a high LTV ratio of greater than 80% (without borrower-paid mortgage insurance); (iii) a high debt-toincome ratio; (iv) an occupancy type for the loan is other than the borrowers primary residence; or (v) a history of delinquencies or late payments on the loan. Option Arms Option ARMs [Member] The option ARM real estate loan product is an adjustable-rate mortgage loan that provides the borrower with the option each month to make a fully amortizing, interest-only, or minimum payment. Commercial mortgage [Member] Commercial Mortgage Backed and Other Securities [Member] Commercial Mortgage Backed and Other Securities [Member] Student [Member] Student Loan Member Loans made to students. Residential and commercial mortgage securitizations [Member] Commercial Mortgage [Member] Commercial Mortgage [Member] Commercial mortgage activities. Residential and Commercial Mortgage Loans [Member] Residential and Commercial Mortgage Loans [Member] Residential mortgage whole loans and commercial mortgage loans for which there is limited price transparency Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Securitization activity [Abstract] Securitization Activity [Abstract] Securitization activity. Principal securitized Principal Amount Of Financial Assets Sold In Securitizations The principal amount of financial assets transferred during the period in securitizations accounted for as sales. Pretax gains Gain (Loss) from Sale of Financial Assets in Securitizations or Asset-backed Financing Arrangement All cash flows during the period: Cash Flows Between Transferor and Transferee [Abstract] Proceeds from new securitizations Cash Flows Between Transferor and Transferee, Proceeds from New Transfers Servicing fees collected Cash Flows Between Transferor and Transferee, Servicing Fees Cash Flows Between Securitization Special Purpose Entity S P E And Transferor Other Servicing Related Cash Flows Received Cash Flows Between Securitization Special Purpose Entity S P E And Transferor Other Servicing Related Cash Flows Received Other servicing-related cash flows received, including excess servicing fees and other ancillary fees received from securitization or asset-backed financing arrangement SPE. Proceeds from collections reinvested in revolving securitizations Cash Flows Between Transferor and Transferee, Proceeds from Collections Reinvested in Revolving Period Transfers Purchases of previously transferred financial assets (or the underlying collateral) Cash Flows Between Transferor and Transferee, Purchases of Previously Transferred Financial Assets Cash flows received on the interests that continue to be held by the Firm Cash Flows Between Transferor and Transferee, Receipts on Transferor's Interest in Transferred Financial Assets, Other Prepayment rate Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Prepayment Speed Weighted-average life (in years) Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Weighted Average Life Expected credit losses Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Expected Credit Losses Discount rate Fair Value Assumption, Date of Securitization or Asset-backed Financing Arrangement, Transferor's Continuing Involvement, Servicing Assets or Liabilities, Discount Rate Business Changes and Developments [Abstract] Business Combination Disclosure And Other Business Events Disclosures Abstract. Business Changes and Developments Business Combination Disclosure And Other Business Events Disclosures [Text Block] Description of a business combination or disposition (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized or derecognized assets and liabilities. This element may be used as a single block of text to encapsulate the entire disclosure (including data and tables) regarding business combinations ( including leverage buyout transactions (as applicable)) and dispositions, other significant business events, and [subsequent events or transactions that occurred between the balance sheet date and the date the financial statements are issued]. Earnings Per Share (Tables) [Abstract] Earnings Per Share Tables Abstract. Basic and diluted earnings per share Basic And Diluted Earnings Per Share [Text Block] Basic And Diluted Earnings Per Share. Goodwill and Other Intangible Assets (Details) [Abstract] Goodwill and Other Intangible Assets Details Abstract. Schedule of Intangible Assets By Major Class [Table] Schedule of Intangible Assets By Major Class [Table] -- None. No documentation exists for this element. -- Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Purchased Credit Card Relationships [Member] Purchased Credit Card Relationships Member Purchased credit card relationships. Other credit card- related intangibles [Member] Other credit card related intangibles Member Other credit card-related intangibles. Core Deposit Intangibles [Member] Core Deposit Intangibles Member Core Deposit Intangibles. Other intangibles [Member] Other intangibles Member Other intangibles. Intangible Assets By Major Class [Line Items] Intangible Assets By Major Class [Line Items] -- None. No documentation exists for this element. -- Amortization expense related to credit card relationships, core deposits and other intangible assets [Abstract] Amortization Of Intangible Assets Abstract Amortization Of Intangible Assets. Amortization expense Amortization of Intangible Assets Fair Value Disclosures [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Valuation Adjustments to Financial Insttruments at Fair Value Valuation Adjustments to Fair Value of Financial Instruments [Axis] Information by type of valuation adjustment that is made to ensure that financial instruments are recorded at fair value. The adjustments may include amounts to reflect counterparty credit quality, the entity’s creditworthiness, constraints on liquidity and unobservable parameters. Credit Adjustments Domain [Domain] Credit Adjustments Domain [Domain] Credit Adjustments Domain [Domain] Credit Valuation Adjustment [Member] Credit Valuation Adjustment [Member] Credit valuation adjustments (“CVA”) are made when the market price (or parameter) of a financial instrument is not indicative of the credit quality of the counterparty. For derivative positions valued using internally developed models that use as their basis observable market parameters, an adjustment may be made to reflect the credit quality of each derivative counterparty to arrive at fair value. The adjustment may also take into account contractual factors designed to reduce the entity’s credit exposure to each counterparty, such as collateral and legal rights of offset. Debit Valuation Adjustment [Member] Debit Valuation Adjustment [Member] Debit valuation adjustments (“DVA”) are taken to reflect the credit quality of the entity in the valuation of liabilities measured at fair value. Fair Value by Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Credit adjustments [Abstract] Credit Adjustments Abstract Credit adjustments. Derivative receivables balance Derivative Assets Derivative payables Derivative Liabilities Structured notes balance Structured Notes Balance Under Fair Value Option This item represents disclosure of all significant concentrations of credit risk arising from structured notes, whether from an individual counterparty or groups of counterparties. Segment Reporting [Abstract] BUSINESS SEGMENTS Segment Reporting Disclosure [Text Block] Variable Interest Entity, Not Primary Beneficiary [Member] Variable Interest Entity, Primary Beneficiary [Member] VIE Asset Vehicles by Instrument Type [Axis] Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together by Type [Axis] Types of Financial Instruments [Domain] Credit linked notes [Member] Credit linked notes [Member] Credit linked notes Member Static structure [Member] Static structure [Member] Static structure Member. Managed structure [Member] Managed structure [Member] Managed structure Member. Notes Receivable [Member] Asset Swap VIEs [Member] Asset swap VIEs Member. Fair Value, Option, Quantitative Disclosures, by Eligible Item or Group [Axis] Fair Value, Option, Eligible Item or Group [Domain] Net derivative receivables [Member] Net derivative receivables. Exposure to nonconsolidated credit-linked note and asset swap VIEs [Abstract] Exposure To Nonconsolidated Credit Linked Note And Asset Swap Vies Abstract Exposure to nonconsolidated credit-linked note and asset swap VIEs. Exposure to non-consolidated VIEs Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets Par value of collateral held by VIEs Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Variable Interest Entity, Consolidated, Carrying Amount, Assets Variable Interest Entity, Consolidated, Carrying Amount, Assets Long Term Debt Disclosure [Abstract] Long Term Debt. Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Bank One Capital III [Member] Bank One Capital III [Member] This item represents outstanding trust preferred debt security issuance Bank One Capital III. Bank One Capital VI [Member] Bank One Capital VI [Member] This item represents outstanding trust preferred debt security issuance Bank One Capital VI. Chase Capital II [Member] Chase Capital II [Member] This item represents outstanding trust preferred debt security issuance Chase Capital II. Chase Capital III [Member] Chase Capital III [Member] This item represents outstanding trust preferred debt security issuance Chase Capital III. Chase Capital VI [Member] Chase Capital VI [Member] This item represents outstanding trust preferred debt security issuance Chase Capital VI. First Chicago NBD Capital I [Member] First Chicago NBD Capital I [Member] This item represents outstanding trust preferred debt security issuance First Chicago NBD Capital I. J.P. Morgan Chase Capital X [Member] J.P. Morgan Chase Capital X [Member] This item represents outstanding trust preferred debt security issuance J.P. Morgan Chase Capital X. JPMorgan Chase Capital XI [Member] JPMorgan Chase Capital XI [Member] This item represents outstanding trust preferred debt security issuance J.P. Morgan Chase Capital XI. JPMorgan Chase Capital XII [Member] JPMorgan Chase Capital XII [Member] This item represents outstanding trust preferred debt security issuance J.P. Morgan Chase Capital XII. JPMorgan Chase Capital XIII [Member] JPMorgan Chase Capital XIII [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XIII. JPMorgan Chase Capital XIV [Member] JPMorgan Chase Capital XIV [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XIV. JPMorgan Chase Capital XV [Member] JPMorgan Chase Capital XV [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XV. JPMorgan Chase Capital XVI [Member] JPMorgan Chase Capital XVI [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XVI. JPMorgan Chase Capital XVII [Member] JPMorgan Chase Capital XVII [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XVII. JPMorgan Chase Capital XVIII [Member] JPMorgan Chase Capital XVIII [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XVIII. JPMorgan Chase Capital XIX [Member] JPMorgan Chase Capital XIX [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XIX. JPMorgan Chase Capital XX [Member] JPMorgan Chase Capital XX [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XX. JPMorgan Chase Capital XXI [Member] JPMorgan Chase Capital XXI [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXI. JPMorgan Chase Capital XXII [Member] JPMorgan Chase Capital XXII [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXII. JPMorgan Chase Capital XXIII [Member] JPMorgan Chase Capital XXIII [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXIII. JPMorgan Chase Capital XXIV [Member] JPMorgan Chase Capital XXIV [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXIV. JPMorgan Chase Capital XXV [Member] JPMorgan Chase Capital XXV [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXV. JPMorgan Chase Capital XXVI [Member] JPMorgan Chase Capital XXVI [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXVI. JPMorgan Chase Capital XXVII [Member] JPMorgan Chase Capital XXVII [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXVII. JPMorgan Chase Capital XXVIII [Member] JPMorgan Chase Capital XXVIII [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXVIII. JPMorgan Chase Capital XXIX [Member] JPMorgan Chase Capital XXIX [Member] This item represents outstanding trust preferred debt security issuance JPMorgan Chase Capital XXIX. Debt Instrument [Line Items] Debt Instrument [Line Items] Outstanding trust preferred debt security issuance Outstanding Trust Preferred Debt Security Issuance Abstract Outstanding trust preferred debt security issuance. Amount of trust preferred capital debt securities issued by trust Amount of trust preferred securities issued by trust Represents the amount of trust preferred securities issued to the public by an unconsolidated subsidiary trust, including unamortized original issue discount. Principal amount of debenture issued to trust Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Issue date Debt Instrument, Issuance Date Stated maturity of trust preferred capital securities and debentures Debt Instruments Maturity Date Date when the debt instrument is scheduled to be fully repaid, which may be presented in a variety of ways (year, month and year, day, month and year, quarter, etc.) Earliest redemption date Debt Instrument Redemption Date Earliest date when the debt instrument may be redeemed. Debt Instruments Interest Rate Stated Percentage Debt Instruments Interest Rate Stated Percentage Interest rate stated in the contractual debt agreement. Interest rate of trust preferred capital securities and debentures Debt Instrument, Interest Rate Terms Interest rate of trust preferred capital securities and debentures Debt Instrument, Interest Rate, Stated Percentage Interest rate spread of trust preferred capital securities and debentures Debt Instrument, Basis Spread on Variable Rate Interest payment/distribution dates Debt Instrument, Frequency of Periodic Payment Issuer Trusts That Guarantee Capital Debt Securities, Number The number of issuer trusts established by the entity which guarantee capital debt securities. Banking and Thrift [Abstract] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Subsidiaries Subsidiaries [Member] JPMorgan Chase Bank, N.A. JPMorgan Chase Bank, N.A. [Member] JPMorgan Chase Bank, National Association, a national bank with branches in the U.S. Chase Bank USA, N.A. Chase Bank USA, National Association [Member] Chase Bank USA, National Association, a national bank that is a credit card issuing bank. Statement, Scenario [Axis] Statement, Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Previously reported value Scenario, Previously Reported [Member] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Reconciliation of the Firm's Total Stockholders' Equity to Tier 1 Capital and Total Qualifying Capital [Abstract] Reconciliation of the Firm's Total Stockholders' Equity to Tier 1 Capital and Total Qualifying Capital [Abstract] Reconciliation of the Firm's total stockholders' equity to Tier 1 capital and Total qualifying capital. Tier 1 capital Tier One Risk Based Capital [Abstract] Total stockholders' equity Stockholders' Equity Attributable to Parent Effect of certain items in accumulated other comprehensive income/(loss) excluded from Tier 1 capital Effect Of Certain Items In Accumulated Other Comprehensive Income Loss Excluded From Tier One Risk Based Capital Effect of certain items in accumulated other comprehensive income/(loss) excluded from Tier One Risk Based Capital as defined in the U.S. federal regulatory capital regulations. Qualifying hybrid securities and noncontrolling interests Hybrid Securities And Noncontrolling Interests Qualifying As Tier One Risk Based Capital Hybrid securities and noncontrolling interests qualifying as Tier One Risk Based Capital as defined in the U.S. federal regulatory capital regulations. Less: Goodwill Goodwill Excluded From Tier One Risk Based Capital Goodwill excluded from Tier 1 Risk Based Capital as defined in the U.S. federal regulatory capital regulations. Less: Fair value DVA on derivative and structured note liabilities related to the Firm's credit quality Fair Value Debit Valuation Adjustment On Derivative And Structured Note Liabilities Related To The Firms Credit Quality Excluded From Tier One Risk Based Capital Fair value debit valuation adjustment on derivative and structured note liabilities related to the entity's credit quality excluded from Tier 1 Risk Based Capital as defined in the U.S. federal regulatory capital regulations. Less: Investments in certain subsidiaries and other Investments In Certain Subsidiaries Excluded From Tier One Risk Based Capital Investments in certain subsidiaries excluded from Tier 1 Risk Based Capital as defined in the U.S. federal regulatory capital regulations. Less: Other intangible assets Other Intangible Assets Excluded From Tier One Risk Based Capital Other intangible assets excluded from Tier 1 Risk Based Capital as defined in the U.S. federal regulatory capital regulations. Total Tier 1 capital Tier One Risk Based Capital Tier 2 capital Tier Two Risk Based Capital [Abstract] Long-term debt and other instruments qualifying as Tier 2 Longterm Debt And Other Instruments Qualifying As Tier Two Risk Based Capital Long-term debt and other instruments qualifying as Tier 2 Risk Based Capital as defined in the U.S. federal regulatory capital regulations. Qualifying allowance for credit losses Tier Two Risk Based Capital Qualifying Allowance For Credit Losses Tier 2 Risk Based Capital qualifying allowance for credit losses as defined in the U.S. federal regulatory capital regulations. Adjustment for investments in certain subsidiaries and other Tier Two Risk Based Capital Adjustment For Investments In Certain Subsidiaries And Other Tier 2 Risk Based Capital adjustment for investments in certain subsidiaries and other as defined in the U.S. federal regulatory capital regulations. Total Tier 2 capital Tier Two Risk Based Capital Total qualifying capital Capital Off balance sheet lending related financial instruments guarantees and other commitments [Abstract] Off Balance Sheet Lending Related Financial Instruments Guarantees And Other Commitments Abstract. Valuation and Qualifying Accounts Disclosure [Table] Range Maximum [Member] Maximum [Member] Fair Value, Off-balance Sheet Risks by Financial Instrument [Axis] Fair Value, Off-balance Sheet Risks by Financial Instrument [Axis] Fair Value, Off-balance Sheet Risks, Financial Instruments [Domain] Fair Value, Off-balance Sheet Risks, Financial Instruments [Domain] Mortgage Repurchase Liability [Member] Mortgage Repurchase Liability [Member] Mortgage repurchase liability. Repurchase Make-Whole Settlements [Member] 'Make-Whole' settlement expenses for repurchased loans. Loans Sold With Recourse [Member] Loans Sold With Recourse [Member] Loans sold with recourse. Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Washington Mutual [Member] Washington Mutual [Member] The banking operations of Washington Mutual Bank ("Washington Mutual"), which was acquired by JPMorgan Chase on September 25, 2008 from the Federal Deposit Insurance Corporation ("FDIC"). Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Loan sales and securitization-related indemnifications Loan Sales and Securitization-related Indemnifications [Abstract] Loan Sales and Securitization-related Indemnifications [Abstract] Valuation Allowances and Reserves Probable Recoveries From Third Parties Valuation Allowances and Reserves Probable Recoveries From Third Parties Total probable recoveries from third parties which is netted against the liabilities established to represent expected future costs. Loss Contingency, Range of Possible Loss, Portion Not Accrued Loss Contingency, Range of Possible Loss, Portion Not Accrued Percentage Of Decline In Home Prices Assumption Percentage Of Decline In Home Prices Assumption Percentage of decline in home prices assumption. Percentage Of Decline In Home Prices Assumption Beyond Firms Current Assumptions Percentage Of Decline In Home Prices Assumption Beyond Firms Current Assumptions Percentage of decline in home prices assumption beyond firms current assumptions. Summary of changes in mortgage repurchase liability Summary Of Changes In Repurchase Liability [Rollforward] Summary of changes in repurchase liability. Valuation allowances and reserves at beginning of period Valuation Allowances and Reserves, Balance Valuation Allowances and Reserves, Deductions Valuation Allowances and Reserves, Deductions Valuation Allowances And Reserves Current Year Provision Valuation Allowances And Reserves Current Year Provision Valuation allowances and reserves current year provision. Valuation allowances and reserves at end of period Loans sold with recourse Loans Sold with Recourse [Abstract] Loans Sold with Recourse [Abstract] Indemnification Agreements Loan Sale And Securitization Loans Sold With Recourse Contractual Amount Indemnification Agreements Loan Sale And Securitization Loans Sold With Recourse Contractual Amount The contractual amount (unpaid principal balance) of loans sold with recourse. Indemnification Agreements, Loan Sale and Securitization, Loans Sold with Recourse: Carrying Value Indemnification Agreements, Loan Sale and Securitization, Loans Sold with Recourse: Carrying Value The carrying value of the related liability of loans sold with recourse. Other Borrowed Funds [Abstract] Other Borrowed Funds. OTHER BORROWED FUNDS Other Borrowed Funds [Text Block] Total other borrowed funds includes: (1) Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer. (2) Federal home loan bank borrowings. Schedule of Fair Value, Off-balance Sheet Risks [Table] Schedule of Fair Value, Off-balance Sheet Risks [Table] Chase PayMentech Solutions [Member] Chase PayMentech Solutions [Member] Chase Paymentech Solutions joint venture, a global payments and merchant acquiring joint venture between JPMorgan Chase and First Data Corporation. Other off-balance sheet arrangements - supplemental information [Abstract] Off balance sheet lending related financial instruments guarantees and other commitments - supplemental information [Abstract] Off Balance Sheet Lending Related Financial Instruments Guarantees And Other Commitments Numeric Abstract. AggregateVolumeProcessedByElectronicPaymentServicesBusiness AggregateVolumeProcessedByElectronicPaymentServicesBusiness Aggregate volume processed by electronic payment services business. CashCollateralHeld CashCollateralHeld Carrying amount as of the balance sheet date of cash collateral held. Other Noninterest Expense Other Noninterest Expense Preferred Stock [Member] Preferred Stock [Member] Summary of preferred stock outstanding Schedule of Stock by Class [Table Text Block] Noninterest Expense (Details) [Abstract] Noninterest Expense. Schedule of Non interest Expense [Table] Schedule of non-interest compensation and non-compensation expense. MergerAndAcquisitionCost [Axis] MergerAndAcquisitionCost [Axis] Pertinent information about each merger cost. Merger and Acquistion Cost [Domain] Merger and Acquistion Cost [Domain] Merger and Acquistion Cost [Domain] Compensation [Member] Compensation [Member] The aggregate amount of expenditures for salaries, wages, profit sharing and incentive compensation, and other employee benefits, including share-based compensation, and pension and other postretirement benefit expense. Occupancy [Member] Occupancy [Member] Amount of net occupancy expense that may include items, such as furniture and fixtures, lease expenses, property taxes and property and casualty insurance expense. Excludes depreciation of equipment. TechnologyAndCommunicationsAndOther [Member] TechnologyAndCommunicationsAndOther [Member] Combination of: 1) The amount of expense in the period for communications and data processing expense and 2) This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item excludes furniture expenses. Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Pending or Threatened Litigation [Member] Non interest Expense [Line Items] Non interest Expense [Line Items] Components of noninterest expense [Abstract] Components Of Noninterest Expense Abstract Components Of Noninterest Expense. Compensation expense Labor and Related Expense Noncompensation expense: Noncompensation expense Abstract Noncompensation expense. Occupancy expense Occupancy, Net Technology, communications and equipment expense Technology, Communications and Equipment Expense Combination of: 1)The amount of expense in the period for communications and data processing expense and 2)This element represents equipment expense including depreciation, repairs, rentals, and service contract costs. This item also includes equipment purchases which do not qualify for capitalization in accordance with the entity's accounting policy. This item excludes furniture expenses. Professional and outside services Professional and Contract Services Expense Marketing Marketing and Advertising Expense Other expense Amortization of intangibles Total noncompensation expense Noninterest Expense Other Than Labor And Related Expense Total Amount of costs of a merger or acquisition including compensation, occupancy, communications, technology, legal, accounting, and other costs that were charged to expense during the period. Merger And Acquisition Cost Merger And Acquisition Cost Amount of costs of a merger or acquisition including compensation, occupancy, communications, technology and other costs that were charged to expense during the period. Total noninterest expense Noninterest Expense Other expenses, additional details Other Expenses, Additional Details [Abstract] Other Expenses, Additional Details [Abstract] Loss Contingency, Loss in Period Loss Contingency, Loss in Period Foreclosed Real Estate Expense Foreclosed Real Estate Expense Federal Deposit Insurance Corporation Premium Expense Federal Deposit Insurance Corporation Premium Expense FDICOCCAndOrOtherRegulatoryAgencyDepositAssessmentExpenditures FDICOCCAndOrOtherRegulatoryAgencyDepositAssessmentExpenditures Expeditures related to Federal Deposit Insurance Corporation, Office of the Comptroller of the Currency, and/or other regulatory agency deposit assessments which are included in noninterest expense. Loans (Details) [Abstract] Loans Details Abstract. Schedule of PCI Loans, Accretable Yield Activity [Table] Schedule of PCI Loans, Accretable Yield Activity [Table] Schedule of PCI Loans, Accretable Yield Activity [Table] Financing Receivable, Recorded Investment, by Class of Financing Receivable [Axis] Financing Receivable, Recorded Investment, by Class of Financing Receivable [Axis] Financing Receivable, Recorded Investment, Class of Financing Receivable [Domain] Purchased Credit Impaired [Member] Class of financing receivables related to purchased credit-impaired loans. Schedule of PCI Loans, Accretable Yield Activity [Line Items] Schedule of PCI Loans, Accretable Yield Activity [Line Items] Washington Mutual Acquisition Washington Mutual Acquisition Washington Mutual acquisition. Accretable Yield Activity [Roll Forward] Accretable Yield Activity [Roll Forward] Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Accretion Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Changes In Interest Rates On Variable Rate Loans Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Changes In Interest Rates On Variable Rate Loans Changes in the accretable yield due to changes in interest rates on variable rate loans. Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications to Nonaccretable Difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield, Reclassifications to Nonaccretable Difference Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield CLONE Accretable yield percentage Accretable yield percentage Accretable yield percentage. Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together by Type [Axis] Types of Financial Instruments [Domain] Student Loan Member Municipal Bonds [Member] Municipal Bonds [Member] Consolidated Entities [Member] Consolidated Entities [Member] Variable Interest Entities by Program Type [Axis] Variable Interest Entities by Program Type [Axis] Variable Interest Entities [Domain] Variable Interest Entities [Domain] Firm Sponsored Credit Card Securitization Trusts [Member] Firm Sponsored Credit Card Securitization Trusts [Member] Firm-sponsored Credit Card securitization trust. Third-Party Credit Card Securitization Trusts [Member] Third-Party Credit Card Securitization Trusts. Other consumer securitizations Vie Program Type Other [Member] VIE Program Type Other. Mortgage securitization entities V I E Program Type Three [Member] Mortgage securitization entities. Multi-seller conduits Firm Administered Multi Seller Conduits [Member] Firm-sponsored multi-seller conduits. Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, by Asset Type [Axis] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Asset Types [Domain] Debt and equity securities [Member] Debt and equity securities [Member] Debt and equity securities Member. Long Term Beneficial Interests Maturities [Axis] Long Term Beneficial Interests Maturities Axis. Long Term Beneficial Interests Maturities [Domain] Long Term Beneficial Interests Maturities Domain. Long Term Beneficial Interests [Member] Long Term Beneficial Interests. Long Term Beneficial Interests Maturities Under One Year [Member] Long Term Beneficial Interests Maturities Under One Year. Long Term Beneficial Interests Maturities Between One And Five Years [Member] Long Term Beneficial Interests Maturities Between One And Five Years. Long Term Beneficial Interests Maturities Over Five Years [Member] Long Term Beneficial Interests Maturities Over Five Years. Information on assets and liabilities related to VIEs that are consolidated by the Firm [Abstract] Information on assets and liabilities related to Variable Interest Entities that are consolidated by the Firm Abstract Information on assets and liabilities related to VIEs that are consolidated by the Firm Abstract. Trading assets (included assets pledged of $89,856 and $73,056) Trading Assets Total debt and equity financial instruments classified as (1) trading securities and (2) derivative assets. (1) The total of financial instruments that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time) or for debt and equity securities formerly categorized as available-for-sale or held-to-maturity which the entity held as of the date it opted to account for such securities at fair value. An enterprise may also categorize such a security as trading without the intent to sell it in the near term assuming the decision to categorize the security as trading occurred at acquisition; this is the reason why the trading category of investments in debt and equity securities are bought and sold "principally" for sale in the near term. Transfers into and out of the trading category should be rare. Such financial instruments that are held as of the reporting date are measured at fair value with unrealized holding gains and losses (the difference between fair value and the previously reported carrying amount) included in earnings. (2) Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements. Loans Loans and Leases Receivable, Net of Deferred Income Other assets, at fair value Other Assets Total assets Assets Beneficial interest liability, at fair value Beneficial Interest Liability Other liabilities Other Liabilities Total liabilities Liabilities Noninterest Revenue (Details) [Abstract] Noninterest revenue. Schedule of Non interest Revenue [Table] Schedule of non-interest revenue comprising banking, commision and other fees, asset management, administration and transaction revenue. Valuation Adjustments to Fair Value of Financial Instruments [Axis] Trading Activity, by Type [Axis] Trading Activity, by Type [Domain] Interest rate Interest Rate Risk [Member] Foreign exchange Foreign Exchange [Member] Equity Equity [Member] Commodity Commodity [Member] Credit Credit Risk [Member] Schedule of Non interest Revenue [Line Items] Schedule of Non-interest Revenue [Line Items] Components of investment banking fees [Abstract] Investment Banking, Advisory, Brokerage, and Underwriting Fees and Commissions, Alternative Presentation for Banks [Abstract] Underwriting: Underwriting [Abstract] Underwriting. Equity Equity Underwriting Equity underwriting revenue (the spread between the resale price received and the cost of the securities and related expenses) generated through the purchasing, distributing and reselling of new issues of securities (alternatively, could be a secondary offering of a large block of previously issued securities). Debt Debt Underwriting Debt underwriting revenue (the spread between the resale price received and the cost of the securities and related expenses) generated through the purchasing, distributing and reselling of new issues of securities (alternatively, could be a secondary offering of a large block of previously issued securities). Total underwriting Underwriting Income (Loss) Advisory Investment Banking Advisory Fee Revenue Fees earned for mergers, acquisitions, divestitures, restructurings, and other types of financial advisory services. Total investment banking fees Investment Banking Revenue Principal transactions revenue Principal Transactions Revenue [Abstract] Trading revenue Trading Gains (Losses) Private equity gains/(losses) Principal Investment Gains (Losses) Principal transactions Principal Transactions Revenue Components of asset management, administration and commissions Banking Fees and Commissions [Abstract] Asset management: Asset Management Fees [Abstract] Investment management fees Investment Advisory Fees All other asset management fees All other asset management fees All other asset management fees. Total asset management fees Asset Management Fees Total administration fees Revenue from Administrative Services Commission and other fees: Fees and Commissions [Abstract] Brokerage commissions Brokerage Commissions Revenue All other commissions and fees Fees and Commissions, Other Total commissions and fees Fees and Commissions Total asset management, administration and commissions Asset Management, Administration and Commissions Combination of: 1) Revenue recognized in the period for (A) performance (incentive) fees based on the investment results achieved for management of certain institutional accounts and hedge funds, (B) schedule-based fees earned for management of mutual funds and closed-end funds, based either on average daily net assets or on a combination of the average daily net assets and gross income, and (C) other investment management and advisory fees. 2) Acting as an agent, a broker-dealer may buy and sell securities on behalf of its customers. In return for such services, the broker-dealer charges a commission. Each time a customer enters into a buy or sell transaction, a commission is earned by the broker-dealer for its selling and administrative efforts. For securities purchased, the commission is recorded as a receivable from customers; for securities sold, it is recorded as reductions in the payable to customers. Commissions earned are usually related to the broker-dealer's customers' trading volume and the dollar amounts of the trades. In general, commissions are for smaller trades of exchange-listed stocks and bonds made by retail customers. 3)Income from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (A) acting as an agent for fiduciary placement and loans and (B) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department. 4) Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products. 5) Revenues from providing transfer agent services to corporations. Such services include maintaining records of investors and account balances and transactions, canceling and issuing certificates, processing investor mailings and dealing with any associated problems (i.e. lost or stolen certificates). 6) Service revenue earned by a depository institution that holds the account balances of other financial institutions and provides services thereto. Such services include check collection and item processing. 7) Fee and commission revenue earned from sources not otherwise specified in the existing taxonomy, such as ADR fees, fund accounting fees, etc. Core Deposit Intangibles [Member] Core Deposits [Member] Other intangibles [Member] Other Intangible Assets [Member] Derivative, Gain (Loss) on Derivative, Net, Real Estate Mortgages Related, and Other Adjustments Derivative, Gain (Loss) on Derivative, Net, Real Estate Mortgages Related, and Other Adjustments Net increase (decrease) in the fair value of the derivative or group of derivatives related to real estate mortgages, and other adjustments included in earnings. Commercial Real Estate, Fair Value, Period Increase (Decrease) Commercial Real Estate, Fair Value, Period Increase (Decrease) Changes in the fair value of commercial real estate during the period. Components of credit card relationships, core deposits and other intangible assets [Abstract] Intangible Assets Net Excluding Goodwill And Mortgage Servicing Rights Msrs Abstract Intangible Assets Net Excluding Goodwill And Mortgage Servicing Rights Msrs. Components of credit card relationships, core deposits and other intangible assets , Gross amount Other Intangible Assets, Gross The gross carrying amount before accumulated amortization as of the balance sheet date of other indefinite-lived and finite-lived intangible assets that are not seperately presented on the statement of financial position. Components of credit card relationships, core deposits and other intangible assets , Accumulated amortization Other Intangible Assets, Accumulated Amortization The accumulated amount of amortization as of the balance sheet date of other finite-lived intangible assets that are not separately presented on the statement of financial position. Components of credit card relationships, core deposits and other intangible assets , Net Carrying Value Other Intangible Assets, Net Increase (Decrease) In Other Intangible Assets Increase (Decrease) In Other Intangible Assets Changes in other intangible assets. Indefinite-Lived Intangible Assets (Excluding Goodwill) Indefinite-Lived Intangible Assets (Excluding Goodwill) Commitments and Contingencies Disclosure [Abstract] Commitments, pledged assets, collateral and contingencies Commitments Contingencies and Guarantees [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Restricted Stock Unit (RSU) activity Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] Employee stock option and Stock Appreciation Rights (SARs) activity Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity [Table Text Block] Noncash compensation expense related to employee stock-based incentive plans Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Cash received from the exercise of stock options and income tax benefit realized Schedule of Cash Proceeds Received from Share-based Payment Awards [Table Text Block] Assumptions used to value employee stock options and Stock Appreciation Rights (SARs) Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Compensation and Retirement Disclosure [Abstract] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plans Disclosures, Defined Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Axis] Defined Benefit Plans [Domain] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Defined Benefit Pension Plans [Member] Pension Plans, Defined Benefit [Member] Defined Benefit Pension Plans, U.S. [Member] United States Pension Plans of US Entity, Defined Benefit [Member] Defined Benefit Pension Plans, Non-U.S. [Member] Foreign Pension Plans, Defined Benefit [Member] OPEB Plans [Member] Other Postretirement Benefit Plans, Defined Benefit [Member] OPEB plans, U.S. [Member] United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member] OPEB plans, Non-U.S. [Member] Foreign Postretirement Benefit Plans, Defined Benefit [Member] Foreign Pension Plans and Other Foreign Postretirement Benefit Plans [Member] Foreign Pension Plans and Other Foreign Postretirement Benefit Plans [Member] The name of the defined benefit pension plan or other postretirement define benefit plan, or a description of the plans grouped, for Foreign Pension Plans. Aggregate of all of an employer's defined benefit pension plans and aggregate of all of an employer's other defined benefit postretirement plans unless disaggregating in groups is considered to provide useful information or is otherwise required. Pension and other postretirement employee benefit plans, U.S. [Member] US Pension Plans and Other US Postretirement Employee Benefit Plans [Member] The name of the defined benefit pension plan or other postretirement define benefit plan, or a description of the plans grouped, for U.S. Pension Plans. Aggregate of all of an employer's defined benefit pension plans and aggregate of all of an employer's other defined benefit postretirement plans unless disaggregating in groups is considered to provide useful information or is otherwise required. Maximum [Member] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Weighted-average assumptions used to determine benefit obligations Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets Period Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets Period An assumption as to the period of rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Support, Bond Indices Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Support, Bond Indices Discount rate: Discount rate Abstract Discount rate. Defined benefit pension plans and OPEB plans Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract] Assumed for next year Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year, Used to Determine Benefit Obligations The assumed health care cost trend rate for the next year used to measure the expected benefit obligations. This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status. Ultimate Defined Benefit Plan, Ultimate Health Care Cost Trend Rate, Used to Determine Benefit Obligations The ultimate trend rate for health care costs, used to determine benefit obligations. Year when rate will reach ultimate Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate Used To Determine Benefit Obligations The year when the ultimate health care cost trend rate is expected to be reached, used to determine benefit obligations. Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Components of net periodic benefit cost [Abstract] Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] Benefits earned during the year Defined Benefit Plan, Service Cost Interest cost on benefit obligations Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return on Plan Assets Amortization: Defined Benefit Plan Amortization [Abstract] Defined Benefit Plan Amortization [Abstract] Net loss Defined Benefit Plan, Amortization of Gains (Losses) Prior service cost (credit) Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Curtailment (gain)/loss Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments Settlement (gain)/loss Defined Benefit Plan, Recognized Net (Gain) Loss Due to Settlements Special termination benefits Defined Benefit Plan Special Termination Benefits Cost The amount of increase net gain or loss recognized in net periodic benefit cost related to special termination benefits offered to and accepted by employees in connection with their termination of employment that are only offered for a short period of time. A situation involving termination benefits may also involve a curtailment. Net periodic defined benefit cost Defined Benefit Plan Net Periodic Benefit Cost Material Plans The amount of net periodic benefit cost for defined benefit plans for the period, relating only to plans considered to be material for reporting purposes. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain or loss, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments. Other defined benefit pension plans Other Defined Benefit Pension Plans, Net Periodic Benefit Cost, Immaterial Plans The amount of net periodic benefit cost for other defined benefit pension plans for the period, relating only to plans considered to be immaterial for reporting purposes. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain or loss, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments. Total defined benefit plans Defined Benefit Plan, Net Periodic Benefit Cost Total defined contribution plans Defined Contribution Plan, Cost Recognized Total pension and OPEB cost included in compensation expense Pension and Other Postretirement Benefit Expense Changes in plan assets and benefit obligations recognized in other comprehensive income Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] Net (gain)/loss arising during the year Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax Prior service credit arising during the year Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Arising During Period, before Tax Amortization of net loss Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax Amortization of prior service (cost)/credit Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Recognized in Net Periodic Benefit Cost, before Tax Curtailment (gain)/loss Other Comprehensive Income Finalization Of Pension And Non Pension Postretirement Plan Valuation Curtailment Before Tax Pre-tax gain or loss adjustment to other comprehensive income resulting from the curtailment of the entity's defined benefit pension and other postretirement plans. Settlement loss/(gain) Other Comprehensive Income Finalization Of Pension And Non Pension Postretirement Plan Valuation Settlement Before Tax Pre-tax gain or loss adjustment to other comprehensive income resulting from the settlement of the entity's defined benefit pension and other postretirement plans. A settlement is defined as a transaction that (a) is an irrevocable action, (b) relieves the employer or plan of a primary responsibility for a pension benefit obligation, and (c) eliminates significant risks related to the obligations and the assets used to effect the settlement. Foreign exchange impact and other Other Comprehensive Income (Loss), Foreign Currency Exchange Rate and Other Changes, before Tax The pretax amount recognized in other comprehensive income (but not yet recognized in net periodic benefit cost) attributed to foreign currency changes, or to any other cause not separately defined above.. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency. Total recognized in other comprehensive income Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, before Tax Total recognized in net periodic benefit cost and other comprehensive income Defined Benefit Plan Net Periodic Benefit Cost And Pretax Other Comprehensive Income Loss Total amounts recognized both in net periodic benefic cost and pretax other comprehensive income, including the net Gain or Loss and net prior service cost (credit) arising during the period. Also includes reclassification adjustments out of other comprehensive income as a result of being recognized as components of net periodic benefit cost for the period. Financial Instruments Owned and Pledged as Collateral [Table] Financial Instruments Owned and Pledged as Collateral [Table] Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Securities Loans Loans Receivable [Member] Pledged assets and Collateral Financial Instruments Owned and Pledged as Collateral [Line Items] Significant components of assets pledged Financial Instruments Owned and Pledged as Collateral [Abstract] Significant components of assets pledged as collateral, fair value Security Owned and Pledged as Collateral, Fair Value Collateral Received that Can be Resold or Repledged Collateral Received that Can be Resold or Repledged [Abstract] Financial instruments pledged by the Firm that may not be sold or repledged by the secured parties Financial Instruments Owned and Pledged as Collateral, Amount Not Eligible to be Repledged by Counterparty Assets accepted by the Firm as collateral that it could sell or repedge, deliver or otherwise use at fair value Fair Value of Securities Received as Collateral that Can be Resold or Repledged Assets accepted by the Firm as collateral that the Firm has sold or repledged Fair Value of Securities Received as Collateral that Have Been Resold or Repledged Dividends Payable by Class of Stock [Axis] Cumulative Preferred Stock, Series E [Member] Cumulative Preferred Stock, Series E. Cumulative Preferred Stock Series, F [Member] Cumulative Preferred Stock, Series F. Cumulative Preferred Stock, Series G [Member] Cumulative Preferred Stock, Series G. Changes in common stock dividend Dividends, Common Stock [Abstract] Common Stock Quarterly Dividend Rate per Share Common Stock Quarterly Dividend Rate per Share The declared common stock quarterly dividend rate, per share, over the context period. Stock repurchases Redemption of cumulative preferred stock Preferred Stock Redemption Abstract Preferred stock. Preferred stock dividend rate Preferred Stock, Dividend Rate, Percentage Litigation [Abstract] Litigation. LITIGATION Legal Matters and Contingencies [Text Block] Impact of credit adjustments on earnings [Abstract] Impact of credit adjustments on earnings Abstract Impact of credit adjustments on earnings. Derivative credit adjustments Derivative, Gain (Loss) on Derivative, Net Structured note credit adjustments Fair Value, Option, Credit Risk, Gains (Losses) on Liabilities Range [Domain] Range minimum Actual rate of return: Defined Benefit Plan, Actual Return on Plan Assets [Abstract] Defined Benefit Plan Actual Return On Plan Assets Percentage Defined Benefit Plan Actual Return On Plan Assets Percentage The percentage rate of return calculated as the difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable, divided by the fair value at the beginning of the period. Loans [Abstract] Loans. Loans Loans Notes Trade And Other Receivables Gross Of Allowance For Credit Losses [Text Block] Disclosure itemizing the categories of loans receivable trade accounts and notes receivable, and for each the gross carrying value as of the balance sheet date. This disclosure may also include detail of related credit-impaired loans such as carrying value and accretable yield activity, carrying amount of loans with terms that have been modified in a troubled debt restructuring and loans held-for-sale. Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Award Type and Plan Name [Axis] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] Share-based Compensation Arrangements by Share-based Payment Award, Award Type and Plan Name [Domain] Restricted Stock Units [Member] Restricted Stock Units (RSUs) [Member] Employee Stock Options and SARs [Member] Employee Stock Options and SARs [Member] Employee Stock Option [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] RSU activity Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward] RSU activity, Number of shares, Outstanding, January 1 Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number RSU activity, Number of shares, Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period RSU activity, Number of shares, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period RSU activity, Number of shares, Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period RSU activity, Number of shares, Outstanding, December 31 RSU activity, Weighted-average grant date fair value, Outstanding, January 1 Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value RSU activity, Weighted-average grant date fair value, Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value RSU activity, Weighted-average grant date fair value, Vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value RSU activity, Weighted-average grant date fair value, Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period, Weighted Average Grant Date Fair Value RSU activity, Weighted-average grant date fair value, Outstanding, December 31 Employee stock option and SARs activity Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Employee stock option and SARs activity, Number of options/SARs, Outstanding, January 1 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Employee stock option and SARs activity, Number of options/SARs, Granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Employee stock option and SARs activity, Number of options/SARs, Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Employee stock option and SARs activity, Number of options/SARs, Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Employee stock option and SARs activity, Number of options/SARs, Canceled Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period Employee stock option and SARs activity, Number of options/SARs, Outstanding, December 31 Employee stock option and SARs activity, Number of options/SARs, Exercisable, December 31 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Employee stock option and SARs activity, Weighted-average exercise price, Outstanding, January 1 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Employee stock option and SARs activity, Weighted-average exercise price, Granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Employee stock option and SARs activity, Weighted-average exercise price, Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Employee stock option and SARs activity, Weighted-average exercise price, Forfeited Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Employee stock option and SARs activity, Weighted-average exercise price, Canceled Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Employee stock option and SARs activity, Weighted-average exercise price, Outstanding, December 31 Employee stock option and SARs activity, Weighted-average exercise price, Exercisable, December 31 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Employee stock option and SARs activity, Weighted-average remaining contractual life (in years), Outstanding, December 31 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Employee stock option and SARs activity, Weighted-average remaining contractual life (in years), Exercisable, December 31 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Employee stock option and SARs activity, Aggregate intrinsic value, Outstanding, December 31 Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Employee stock option and SARs activity, Aggregate intrinsic value, Exercisable, December 31 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Total fair value of RSUs that vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Total Fair Value Weighted average grant date per share of stock options and SARs granted Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Total intrinsic value of options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Noncash compensation expense related to employee stock-based incentive plans Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Abstract] Disclosure that sets forth the allocation of share-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed. Cost of prior grants of restricted stock units ("RSUs") and stock appreciation rights ("SARs") that are amortized over their applicable vesting periods Share Based Compensation Amortization Of Prior Grants Of Share based Compensation Expense related to the cost of prior grants of share-based compensation awards. Accrual of estimated costs of RSUs and SARs to be granted in future periods to full-career eligible employees Share based Compensation Estimated Future Grants To Retirement Eligible Employees Expense related to accruals for future grants of share-based compensation awards to retirement eligible employees. Total noncash compensation expense related to employee stock-based incentive plans Share-based Compensation Compensation cost related to unvested awards not charged to net income Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized Weighted average period for cost expected to be amortized into compensation expense Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Cash received from the exercise of stock options under all stock-based incentive arrangements, and the actual income tax benefit realized related to tax deductions from the exercise of the stock options Schedule Of Cash Received From The Exercise Of Stock Options Under All Stock Based Incentive Arrangements And The Actual Income Tax Benefit Realized Related To Tax Deductions From The Exercise Of Stock Options Abstract Disclosure of cash received from the exercise of stock options under all stock-based incentive arrangements, and the actual income tax benefit realized related to the deductions from the exercise of stock options. Income tax benefits related to stock-based incentive arrangements recognized in the Firm's Consolidated Statements of Income Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Cash received from options exercised Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Tax benefit realized Employee Service Share-based Compensation, Tax Benefit Realized from Exercise of Stock Options Assumptions used to value employee stock options and Stock Appreciation Rights (SARs) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Expected common stock price volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Expected life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Defined Benefit and OPEB Plans [Domain] Defined Benefit Pension Plans and OPEB Plans [Member] Defined Benefit Plans and Other Postretirement Benefit Plans [Member] Defined Benefit Plans And Other Postretirement Benefit Plans. U.S. Defined Benefit Pension And OPEB Plans [Member] U S Defined Benefit Pension And O P E B Plans [Member] U.S. defined benefit pension and OPEB plans. Defined Benefit Pension Plans, U.S. [Member] Defined Benefit Pension Plans, Non-U.S. [Member] Defined Benefit Pension Plans, Excess Retirement Plan [Member] Defined Benefit Pension Plans, Excess Retirement Plan [Member] Pertaining to the Excess Retirement Plan, which is a defined benefit plan of the Firm not subject to Title IV of the Employee Retirement Income Security Act. OPEB Plans [Member] Defined Benefit Plan by Plan Asset Categories [Axis] Plan Asset Categories [Domain] Accrued Liabilities [Member] Overfunded Plans [Member] Overfunded Plans. Underfunded Plans [Member] Under funded Plans Participation Rights Under Participating Annuity Contracts [Member] Participation Rights Under Participating Annuity Contracts. Accrued Receivables [Member] Accrued Receivables. Contractually Required Payments [Member] Contractually Required Payments. Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax Defined Benefit Plan, Changes in Benefit Obligations and Plan Assets and Funded Status Amounts [Abstract] Defined Benefit Plan, Changes in Benefit Obligations and Plan Assets and Funded Status Amounts [Abstract] Pension Contributions Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year Defined Benefit Plan Benefit Obligation Excess Retirement Plan For the Excess Retirement Plan, the unfunded projected benefit obligation. Defined Contribution Plan Employer Matching Contribution Percent Defined Contribution Plan Employer Matching Contribution Percent Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. Defined Contribution Plan Employee Annual Compensation Amount Not Eligible For Employers Matching Contributions Defined Contribution Plan Employee Annual Compensation Amount Not Eligible For Employers Matching Contributions Employee Annual Compensation Amount Not Eligible For Employers Matching Contributions For 401 (k) Savings Plan Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Benefit Obligation, beginning of year Defined Benefit Plan, Benefit Obligation Benefits earned during the period Defined Benefit Plan Service Cost Benefit Obligation The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period, related to the change in benefit obligation. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan. Interest cost on benefit obligations Defined Benefit Plan Interest Cost Benefit Obligation The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time, related to the change in benefit obligation. Plan amendments Defined Benefit Plan, Plan Amendments Business combinations Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation Employee contributions Defined Benefit Plan Contributions By Plan Participants Benefit Obligation The amount of contributions made by plan participants, related to the change in benefit obligation. This item represents a periodic increase to the benefit plan obligation. Net gain/(loss) Defined Benefit Plan, Actuarial Net (Gains) Losses Benefits paid Defined Benefit Plan Benefits Paid Benefit Obligation The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment, related to the change in benefit obligation. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. Expected Medicare Part D subsidy receipts Defined Benefit Plan, Gross Prescription Drug Subsidy Receipts Received Curtailments Defined Benefit Plan, Curtailments Settlements Defined Benefit Plan, Settlements, Benefit Obligation Special termination benefits Defined Benefit Plan, Special Termination Benefits Foreign exchange impact and other Defined Benefit Plan Foreign Currency Exchange Rate And Other Changes Benefit Obligation The amount of increase or decrease in the benefit obligation attributed to foreign currency changes, or to any other cause not separately defined above. For foreign currency changes, the he effects of exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency. Benefit obligation, end of year Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Fair value of plan assets, beginning of year Defined Benefit Plan, Fair Value of Plan Assets Actual return on plan assets Defined Benefit Plan, Actual Return on Plan Assets Firm contributions Defined Benefit Plan, Contributions by Employer Employee contributions Defined Benefit Plan, Contributions by Plan Participants Benefits paid Defined Benefit Plan, Benefits Paid Settlements Defined Benefit Plan, Settlements, Plan Assets Foreign exchange impact and other Defined Benefit Plan Foreign Currency Exchange Rate And Other Changes Plan Assets The amount of increase or decrease in plan assets attributed to foreign currency changes, or to any other cause not separately defined above.. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency. Fair value of plan assets, end of year Funded/(unfunded) status Defined Benefit Plan, Funded Status of Plan Accumulated benefit obligation, end of year Defined Benefit Plan, Accumulated Benefit Obligation Funded status of plan - supplemental information Defined Benefit Plan, Funded Status of Plan [Abstract] Defined Benefit Plan Amounts Not Measured At Fair Value Defined Benefit Plan Amounts Not Measured At Fair Value Unfunded Postretirement Benefit Obligation, U.K. Plan The unfunded accumulated postretirement benefit obligation of the U.K. Plan. Allowance For Credit Losses (Details) [Abstract] Allowance For Credit Losses. Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Reserve for Off-balance Sheet Activities [Member] Reserve for Off-balance Sheet Activities [Member] Impaired collateral-dependent loans [Member] Impaired collateral dependent loans [Member] Loans that are expected paid solely by the underlying collateral, rather than by cash flows from the borrower's operations, income or other resources. Asset Specific [Member] Asset Specific [Member] Asset-specific. Formula Based [Member] Formula Based [Member] Formula-based. Allowance for Lending Related Commitments [Member] Allowance for Lending Related Commitments [Member] Allowance for lending related commitments. Allowance For Lending Related Commitments Activity [Axis] Allowance For Lending Related Commitments Activity [Axis] Information related to activity in the allowance for lending-related commitments by portfolio segment. Allowance For Lending Related Commitments [Domain] Allowance For Lending Related Commitments [Domain] Represents allowance for lending-related commitments portfolio segments. Wholesale Commercial Portfolio Segment [Member] Consumer Excluding Credit Card Consumer Portfolio Segment [Member] Credit Card Credit Card Loan Portfolio Segment [Member] Portfolio segment of the company's total financing receivables related to credit card receivables. Component of Loan Losses Allowances [Line Items] Valuation and Qualifying Accounts Disclosure [Line Items] Allowance for lending-related commitments [Abstract] Lending Related Commitments Allowances [Abstract] Allowance For Lending Related Commitments. Cumulative effect of changes in accounting principles New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets Provision for lending-related commitments Provision For Lending Related Commitments The sum of the periodic provision charged to operations, as well as any accounting policy conformity adjustment recorded in connection with a business combination transaction, based on an assessment of the collectibility of the lending related commitments (which are conditional contracts to lend money to a client in the future under specific terms) and the offset to which is either added to or deducted from the allowance account for the purpose of adjusting the portfolio to an amount that approximates net realizable value (the amount expected to be collected). Other Provision for Other Losses Allowance for lending related commitments by impairment methodology Components Abstract Components. Asset-specific Allowance For Lending Related Commitments Asset Specific Allowance For Lending Related Commitments Asset Specific. Formula-based Allowance For Lending Related Commitments Formula Based Allowance For Lending Related Commitments Formula Based. Allowance for lending-related commitments Lending-related commitments by impairment methodology: Lending related commitments by impairment methodology Lending-related commitments by impairment methodology. Asset-specific Off Balance Sheet Lending Related Financial Instruments, Individually Evaluated for Credit Losses The contractual amount of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees that were individually evaluated when determining the allowance for credit losses. Formula-based Off Balance Sheet Lending Related Financial Instruments, Collectively Evaluated for Credit Losses The contractual amount of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees that were collectively evaluated when determining the allowance for credit losses. Total lending related commitments Off Balance Sheet Lending Related Financial Instruments Contractual Amount The contractual amount of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees), which represents the maximum possible credit risk should the counterparty draw upon the commitment or the entity be required to fulfill its obligation under the guarantee, and the counterparty subsequently fail to perform according to the terms of the contract. Earnings Per Share [Abstract] EARNINGS PER SHARE Earnings Per Share [Text Block] Fair Value Measurement [Abstract] Fair Value Measurement. Fair Value, Policy [Policy Text Block] Fair Value of Financial Instruments, Policy [Policy Text Block] Trading Assets and Liabilities, Policy [Policy Text Block] Trading Assets and Liabilities, Policy [Policy Text Block] Describes an entity's accounting policy for trading assets and trading liabilities. Credit Quality of Credit Card Loans, by Portfolio Segment and FICO Scores [Table] Credit Quality of Credit Card Loans, by Portfolio Segment and FICO Scores [Table] Credit Quality of Credit Card Loans, by Portfolio Segment and FICO Scores [Table] Financing Receivable Information by Portfolio Segment [Axis] Financing Receivable Portfolio Segments Financing Receivable Allowance [Domain] Washington Mutual Credit Card Portfolio [Member] Class of financing receivables related to a portfolio of consumer credit card loan receivables acquired from Washington Mutual. Chase Credit Card Portfolio Excluding Washington Mutual [Member] Class of financing receivables related to a portfolio of consumer credit card loan receivables held by Chase, excluding loans acquired from Washington Mutual. Credit Card Loans, by Portfolio Segment [Line Items] Credit Card Loans, by Portfolio Segment [Line Items] Retained Loans Percentage Fico Score Six Hundred Sixty Or Greater Retained Loans Percentage Fico Score Six Hundred Sixty Or Greater Percentage of recorded investment in retained loans that have estimated refreshed FICO scores equal or greater than 660. Retained Loans Percentage Fico Score Less Than Six Hundred Sixty Retained Loans Percentage Fico Score Less Than Six Hundred Sixty Percentage of recorded investment in retained loans that have estimated refreshed FICO scores of less than 660. Statement of Financial Position [Abstract] Statement [Table] Statement [Table] Assets and liabilities related to VIEs that are consolidated by the Firm Statement [Line Items] Statement [Line Items] Assets Assets [Abstract] Cash and due from banks Cash and Due from Banks Deposits with banks Interest-bearing Deposits in Banks and Other Financial Institutions Federal funds sold and securities purchased under resale agreements (included $24,891 and $20,299 at fair value) Federal Funds Sold and Securities Purchased under Agreements to Resell Securities borrowed (included $15,308 and $13,961 at fair value) Securities Borrowed Securities (included $364,781 and $316,318 at fair value and assets pledged of $94,691 and $86,891) Securities Total debt and equity financial instruments classified as (1) available-for-sale securities and (2) held-to-maturity securities. (1) For an unclassified balance sheet, this item represents investments in debt and equity securities which are categorized neither as held-to-maturity nor trading. Such securities are reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale Security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain or loss of an Available-for-sale Security that is designated as being hedged in a fair value hedge shall be recognized in earnings during the period of the hedge, as should other than temporary declines in fair value below costs basis. (2) For an unclassified balance sheet, this item represents investments in debt securities which are categorized as held-to-maturity; such investments are measured at amortized cost (carrying value). The held-to-maturity category is for those securities that the Entity has the positive intent and ability to hold until maturity. Loans (included $2,097 and $1,976 at fair value) Allowance for loan losses Loans and Leases Receivable, Allowance Loans, net of allowance for loan losses Loans and Leases Receivable, Net Reported Amount Accrued interest and accounts receivable Accrued Interest and Accounts Receivable Accrued interest and accounts receivable comprised of (1) accounts receivable and (2) accrued investment income. (1) Amount due from customers or clients, more than one year from the balance sheet date, for goods or services that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. (2) Interest, dividends, ancillary and other revenues earned but not yet received by the entity on its investments. Premises and equipment Property, Plant and Equipment, Net Goodwill Goodwill Mortgage servicing rights Servicing Asset at Fair Value, Amount Other intangible assets Other assets (included $16,499 and $18,201 at fair value and assets pledged of $1,316 and $1,485) Liabilities Liabilities [Abstract] Deposits (included $4,933 and $4,369 at fair value) Deposits Federal funds purchased and securities loaned or sold under repurchase agreements (included $9,517 and $4,060 at fair value) Federal Funds Purchased, Securities Sold Under Agreements to Repurchase and Securities Loaned Total federal funds purchased and securities loaned or sold under repurchase agreements classified as (1) Federal funds purchased and securities sold under agreements to repurchase and (2) Securities loaned. (1) The amount shown on the books that a bank with insufficient reserves borrows, at the federal funds rate, from another bank to meet its reserve requirements and the amount of securities that an institution sells and agrees to repurchase at a specified date for a specified price, net of any reductions or offsets. (2) The carrying value as of the balance sheet date of securities loaned to other broker dealers, typically used by such parties to cover short sales, secured by cash or other securities furnished by such parties until the borrowing is closed. Commercial paper Commercial Paper Other borrowed funds (included $9,576 and $9,931 at fair value) Federal Home Loan Bank Advances And Other Short Term Borrowings Total other borrowed funds classified as (1) Other short-term borrowings, short-term and (2) Federal home loan bank, advances. (1) Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer. (2) Federal home loan bank borrowings. Trading liabilities Trading Liabilities Accounts payable and other liabilities (included $51 and $236 at fair value) Accounts Payable and Accrued Liabilities Beneficial interests issued by consolidated variable interest entities (included $1,250 and $1,495 at fair value) Long-term debt (included $34,720 and $38,839 at fair value) Commitments and contingencies (see Note 21 and 23 of this Form 10-Q) Commitments and Contingencies Stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Preferred stock ($1 par value; authorized 200,000,000 shares: issued 780,000 shares) Preferred Stock, Including Additional Paid in Capital, Net of Discount Common stock ($1 par value; authorized 9,000,000,000 shares; issued 4,104,933,895 shares) Common Stock, Value, Issued Capital surplus Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income/(loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Shares held in RSU Trust, at cost (852,906 and 1,192,712 shares Common Stock Held in Trust Treasury stock, at cost (332,243,180 and 194,639,785 shares) Treasury Stock, Value Total stockholders' equity Total liabilities and stockholders' equity Liabilities and Equity Limited program-wide credit enhancement Limited Program Wide Credit Enhancement Limited program-wide credit enhancement. Derivative Instruments and Hedging Activities Disclosure [Abstract] Trading Derivative Instruments, Gain (Loss), by Income Statement Location, by Derivative Instrument Risk [Table] Trading Derivative Instruments, Gain (Loss), by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Income Statement Location [Axis] Trading Activity, Gains and Losses, by Income Statement Location [Domain] Income Statement and Other Comprehensive Income (Loss) Location [Domain] Principal transactions revenue Principal or Proprietary Transactions [Member] Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Interest rate Interest Rate Contract [Member] Credit derivatives Credit Risk Contract [Member] Foreign exchange Foreign Exchange Contract [Member] Equity Equity Contract [Member] Commodity Commodity Contract [Member] Trading derivative gains and losses Trading Activity, Gains and Losses, Net [Line Items] Derivative-related gains/(losses) Trading Derivative Instruments and Related Cash Instruments Gain (Loss), Recognized in Income, Net The amount of net gains and losses recognized in income during the period on trading derivative instruments together with related cash instruments with which they are risk managed. Deposits [Abstract] Noninterest-bearing and interest-bearing deposits Noninterest Bearing And Interest Bearing Deposits [Text Block] Noninterest-bearing and interest-bearing deposits. Time Deposits One Hundred Thousand Or More Time Deposits One Hundred Thousand Or More [Text Block] A table or schedule providing information pertaining to time deposits in excess of $100,000. Time Deposits, by Maturity Time Deposits By Maturity [Text Block] A table or schedule providing information pertaining to maturities of time deposits. Earnings Per Share, Policy [Policy Text Block] Earnings Per Share, Policy [Policy Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Statement, Business Segments [Axis] Statement, Business Segments [Axis] Goodwill, Segment [Domain] Segment [Domain] Goodwill [Line Items] Goodwill [Line Items] Changes in the carrying amount of goodwill [Abstract] Goodwill [Roll Forward] Balance at beginning of period Changes during the period: Changes in goodwill during the period Abstract Changes in goodwill during the period Abstract. Business combinations Goodwill, Acquired During Period Dispositions Goodwill, Written off Related to Sale of Business Unit Other Goodwill Period Increase (Decrease), Other The change during the reporting period in the carrying value of goodwill not categorized elsewhere within the Goodwill Roll Forward table. Balance at March 31, Securities Financing Transactions Disclosures [Abstract] SECURITIES FINANCING ACTIVITIES Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block] Loans by Portfolio Segment [Table] Schedule of Loans by Portfolio Segment [Table] -- None. No documentation exists for this element. -- Financing Receivable, Recorded Investment, Class of Financing Receivable [Domain] Total other consumer [Member] Other Consumer [Member] Class of financing receivables related to other consumer, which includes Auto, Business Banking, and Student and other. Auto [Member] Consumer Loans Auto Financing Receivable [Member] Noncompliance With Modified Terms [Member] Noncompliance With Modified Terms [Member] A loans that was modified in troubled debt restructuring but has subsequently reverted back to the loan's original payment terms due to non-compliance with the terms of the modified loan. Completion of Short Term Modification [Member] Completion of Short Term Modification [Member] A loans that was modified in troubled debt restructuring but has subsequently reverted back to the loan's original payment terms after the borrower successfully completed a short-term modification program. Credit Card Consumer Credit Card Financing Receivable [Member] Loans [Line Items] Schedule of Loans by Portfolio Segment [Line Items] -- None. No documentation exists for this element. -- Retained loans Loans receivable held for investment, Net of Deferred Income The gross carrying amount of loans held for investment, after deducting deferred income, but before deducting the allowance for loan and lease losses. Modified credit card loans that have reverted to original payment terms Loans And Leases Receivable, Impaired, Reverted To Original Payment Terms Amount Represents credit card loans that were modified in troubled debt restructurings but that have subsequently reverted back to the loans original payment terms. Loans (Numeric) [Abstract] Loans numeric abstract Loans numeric abstract. Nonaccrual mortgage loans that are insured by U.S. government agencies excluded from nonaccrual loans Nonaccrual Mortgage Loans Insured By Us Government Agencies Excluded From Nonaccrual Loans Nonaccrual mortgage loans that are insured by U.S. government agencies excluded from nonaccrual loans. Prime mortgage loans repurchased from Government National Mortgage Association pools, which are insured by U.S. government agencies Prime Mortgage Loans Repurchased From Government National Mortgage Association Pools Prime mortgage loans repurchased from Government National Mortgage Association pools, which are insured by U.S. government agencies. Mortgage loans that are insured by U.S. government agencies excluded from the percentage of 30 plus days past due to retained loans Mortgage Loans Insured By US Government Agencies Excluded From The Percentage Of Thirty Or More Days Past Due To Retained Loans Mortgage loans that are insured by U.S. government agencies excluded from the percentage of 30+ days past due to total retained loans. Deferred loan costs Loans And Leases Receivable Deferred Costs Reflects the amount of cumulative deferred costs. Wholesale loans restructured in troubled debt restructuring Loans and Leases Receivable, Commercial, Impaired, Troubled Debt Restructuring, Amount Reflects the carrying amount of commercial loans with terms that have been modified because of the inability of the borrower, for financial reasons, to comply with the terms of the original loan agreement. Non performing wholesale loans restructured Loans And Leases Receivable, Impaired, Trouble Debt Restructuring Not Yet Made Six Payments Represents the carrying amount of loans with terms that have been modified in trouble debt restructurings that have not yet made six payments under the modified terms. Modified loans repurchased from U.S.government agencies excluded from troubled debt restructurings Modified Loans Repurchased From U S Government Agencies Excluded From Troubled Debt Restructurings Loans that are repurchased from US government agencies, such as the Government National Mortgage Association (GNMA or Ginnie Mae), and modified subsequent to repurchase. These loans are excluded from loans accounted for as troubled debt restructurings. Allowance for purchased credit impaired loans Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses Student and other loans that are 30 or more days past due and still accruing which are insured by U.S. government agencies under the Federal Family Education Loan Program Student And Other Loans Thirty Or More Days Past Due And Still Accruing Insured By Us Government Agencies Under The Federal Family Education Loan Program Student and other loans that are 30 or more days past due and still accruing which are insured by U.S. government agencies under the Federal Family Education Loan Program. Statement of Stockholders' Equity [Abstract] Preferred stock Preferred Stock Including Additional Paid in Capital [Member] Capital surplus Retained earnings Retained Earnings [Member] Accumulated other comprehensive income/(loss) Accumulated Other Comprehensive Income (Loss) [Member] Shares held in RSU Trust, at cost Common Stock Held in Trust [Member] Value of common stock held in trust. Preferred stock – Preferred stock issued to the U.S. Treasury Cumulative Perpetual Preferred Stock, Series K [Member] Fixed Rate Cumulative Perpetual Preferred Stock, Series K. – Other preferred stock Other Preferred Stock [Member] All other preferred stock other than those already specified. Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Cumulative effect of a change in accounting principles Adjustments for New Accounting Pronouncement [Member] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] – Purchase of remaining interest in J.P. Morgan Cazenove J.P. Morgan Cazenove [Member] J.P. Morgan Cazenove, an investment banking business partnership formed in 2005. – Purchase of remaining interest in Highbridge Capital Management Highbridge Capital Management [Member] Highbridge Capital Management LLc. Beginning balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Preferred Stock, Accretion of Redemption Discount Preferred Stock, Accretion of Redemption Discount Redemption of preferred stock Stock Redeemed or Called During Period, Value Issuance of common stock Shares issued and commitments to issue common stock for employee stock-based compensation awards, and related tax effects Stock Issued During Period Value Share Based Compensation Employee Stock Purchase Plan Restricted Stock Award Net Of Forfeitures And Options Exercised Tax benefit associated with any share-based compensation plan other than an employee stock ownership plan (ESOP). The tax benefit results from the deduction by the entity on its tax return for an award of stock that exceeds the cumulative compensation cost for common stock or preferred stock recognized for financial reporting. Includes any resulting tax benefit that exceeds the previously recognized deferred tax asset (excess tax benefits). Other Stockholders' equity Net income Net Income (Loss) Attributable to Parent Dividends declared: Dividends [Abstract] Preferred stock Dividends, Preferred Stock, Cash Common stock ($1.00, $0.20 and $0.20 per share for 2011, 2010 and 2009, respectively) Dividends, Common Stock, Cash Other comprehensive income/(loss) Other Comprehensive Income (Loss), Net of Tax Reissuance from RSU Trust Reissuance From Trust Grant date fair value of vested issued and outstanding stock held in a grantor trust for certain employees, until the employees complete their future service obligations. Purchase of treasury stock Reissuance from treasury stock Stock Issued During Period, Value, Treasury Stock Reissued Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Ending balance Share repurchases related to employee stock-based compensation awards Share Repurchases Related To Employee Stock Based Compensation Awards Cost of common and preferred stock that were repurchased when employees exercised their stock-based compensation awards. Preferred Stock Redemption Premium Preferred Stock Redemption Premium Segment results and reconciliation Schedule of Segment Reporting Information, by Segment [Table Text Block] Merger costs attributed to business segments Merger and Acquisition Costs by Business Segment [Table Text Block] Tabular disclosure of merger and acquisition costs attributed to the business segments. VIE related securitization adjustments Securitization Adjustments [Table Text Block] Tabular disclosure of impact on net revenue, provision for credit losses and average assets as a result of adopted accounting guidance related to VIEs. Tax equivalent adjustments Tax Equivalent Adjustment [Table Text Block] Tax Equivalent Adjustment Off–balance sheet lending-relatedfinancial instruments, guarantees, and other commitments expiration periods [Axis] Off–balance sheet lending-relatedfinancial instruments, guarantees, and other commitments expiration periods [Axis] Expiration periods of off–balance sheet lending-relatedfinancial instruments, guarantees, and other commitments Off–balance sheet lending-related financial instruments, guarantees, and other commitments expiration periods [Domain] Off–balance sheet lending-related financial instruments, guarantees, and other commitments expiration periods [Domain] Expiration dates of off–balance sheet lending-related financial instruments, guarantees, and other commitments Expires in one year or less [Member] ExpiresInOneYearOrLess [Member] Expiration date in one year or less Expires after one year through three years [Member] Expires after one year through three years [Member] Expiration date after one year through three years Expires after three years through five years [Member] Expires after three years through five years [Member] Expiration date after three years through five years Expires after five years [Member] Expires after five years [Member] Expiration date after five years Investment Type [Member] Investment Type [Member] Consumer Loan [Member] Consumer Loan [Member] Consumer Loan Excluding Credit Card Consumer Loan Excluding Credit Card [Member] Any loan or extension of credit to an individual for personal, family, or household use, excluding the amounts of receivables from issuing a credit card. Home Equity - Senior Lien [Member] Home Equity Senior Lien [Member] Class of financing receivables related to loans and revolving lines of credit extended to a homeowner and collateralized by the equity in the home. Such financing receivables are where the entity holds the first security interest on the property. Home Equity - Junior Lien [Member] Home Equity Junior Lien [Member] Class of financing receivables related to loans and revolving lines of credit extended to a homeowner and collateralized by the equity in the home. Such loans and lines of credit are where the entity holds a security interest that is subordinate in rank to other liens. Prime Mortgage [Member] Prime Mortgage, including option ARMs [Member] Prime mortgage, including option ARMs. Subprime Mortgage [Member] Subprime Mortgage [Member] Class of financing receivables related to subprime residential financing receivables. Automobile Loans [Member] Automobile Loan [Member] Business Banking [Member] Business Banking Loans [Member] Business banking loans. Student and Other [Member] Student and Other [Member] Student and other. Wholesale Commercial Loan [Member] Other Unfunded Commitments to Extend Credit Other Unfunded Commitments To Extend Credit Member Other unfunded commitments to extend credit. Standby Letters of Credit, and Other Financial Guarantees [Member] Standby Letters of Credit, and Other Financial Guarantees [Member] An irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation, and other financial guarantees. Other Commitments to Extend Credit Commitments To Extend Credit Other Member Loan commitments are legally binding commitments to extend credit to a counterparty under certain terms and conditions. Unused Advised Lines of Credit [Member] Unused Lines of Credit, Advised [Member] The unused portion of an advised line of credit that is available to the borrower to withdrawn upon. Other letters of credit Other Letters of Credit [Member] For other letters of credit, an irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation. Securities Lending Indemnifications [Member] Securities Lending Indemnifications [Member] Securities lending indemnifications. Derivative Qualifying as Guarantees [Member] Derivatives Qualifying As Guarantees [Member] This element represents types of derivative financial instruments gualifying as guarantees which are financial instruments or other contractual arrangements with all three of the following characteristics: (a) it has (1) one or more underlyings and (2) one or more notional amounts or payment provisions or both. Those terms determine the amount of the settlement or settlements, and, in some cases, whether or not a settlement is required; (b) it requires no initial net investment or an initial net investment that is smaller than would be required for other types of contracts that would be expected to have a similar response to changes in market factors; and (c) its terms require or permit net settlement, it can readily be settled net by a means outside the contract, or it provides for delivery of an asset that puts the recipient in a position not substantially different from net settlement. Notwithstanding the above characteristics, loan commitments that relate to the origination of mortgage loans that will be held for sale shall be accounted for as derivative instruments by the issuer of the loan commitment (that is, the potential lender). Unsettled Reverse Repurchase and Securities Borrowing Agreements [Member] Unsettled Reverse Repurchase and Securities Borrowing Agreements [Member] This represents the amount of commitments to enter into reverse repurchase and securities borrowing agreements. Other Guarantees and Commitments Other Guarantees and Commitments [Member] Other Guarantees And Commitments. Letters Of Credit Hedged By Derivative Transactions [Member] Letters Of Credit Hedged By Derivative Transactions [Member] Letters of credit hedged by derivative transactions and managed on a market risk basis. Equity Investment Commitments [Member] Commitments, Investment, Equity [Member] Equity investments commitments. Indemnification Agreements Loan Sale And Securitization [Member] Indemnification Agreements Loan Sale And Securitization [Member] Loan sale and securitization-related indemnifications. Repurchase Liability [Member] Loans Sold With Recourse [Member] Student Loan Repurchase Liability [Member] Student loan repurchase liability. Off Balance Sheet Lending Related Financial Instruments Contractual Amount Off Balance Sheet Lending Related Financial Instruments Carrying Value Off Balance Sheet Lending Related Financial Instruments Carrying Value The carrying value of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees), which represents the allowance for lending-related commitments and the guarantee liability. Guarantor Obligations and Commitments, Maximum Exposure Undiscounted Guarantor Obligations and Commitments, Maximum Exposure Undiscounted Maximum potential amount of future payments (undiscounted) the guarantor or committed party could be required to make under the guarantee or commitment or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Guarantor Obligations and Commitments, Current Carrying Value Guarantor Obligations and Commitments, Current Carrying Value The current carrying amount of the liability for the freestanding or embedded guarantor's obligations or commited party's obligations under the guarantee or each group of similar guarantees or commitments. Off balance sheet lending related financial instruments guarantees and other commitments - supplemental information [Abstract] Off Balance Sheet Lending Related Commitments Wholesale Contractual Amount Net Of Risk Participations Other Unfunded Commitments To Extend Credit Off Balance Sheet Lending Related Commitments Wholesale Contractual Amount Net Of Risk Participations Other Unfunded Commitments To Extend Credit Wholesale off-balance sheet contractual amount of lending-related commitments net of risk participations for other unfunded commitments to extend credit. Off balance sheet Lending related commitments Wholesale Contractual amount Net of Risk Participations Standby letters of credit and other financial guarantees Off balance sheet Lending related commitments Wholesale Contractual amount Net of Risk Participations Standby letters of credit and other financial guarantees Wholesale off-balance sheet contractual amount of lending-related commitments net of risk participantions for standby letters of credit and other financial guarantees. Off balance sheet Lending related commitments Wholesale Contractual amount Net of Risk Participations Other letters of credit Off balance sheet Lending related commitments Wholesale Contractual amount Net of Risk Participations Other letters of credit Wholesale off-balance sheet contractual amount of lending-related commitments net of risk participations for other letters of credit. Credit Enhancements and Bond and Commercial Paper Liquidity Commitments to US States and Municipalities Hospitals and Other Not For Profit Entities Credit Enhancements and Bond and Commercial Paper Liquidity Commitments to US States and Municipalities Hospitals and Other Not For Profit Entities Credit enhancements and bond and commercial paper liquidity commitments to U.S. states and municipalities, hospitals and other not-for-profit entities. Standby Letters of Credit, Unissued Commitments Standby Letters of Credit, Unissued Commitments Unissued standby letter of credit commitments. Standby Letters of Credit, Collateral Held Standby Letters of Credit, Collateral Held Collateral held relating to standby letters of credit. Other Letters of Credit, Collateral Held Other Letters of Credit, Collateral Held Collateral held relating to other letters of credit. Indemnification Agreement Securities Lending Guarantees Collateral Held In Support Of Indemnification Agreement Securities Lending Guarantees Collateral Held In Support Of Collateral held in support of securities lending indemnification agreements. Derivative Qualifying As Guarantees Payables Derivative Qualifying As Guarantees Payables This element represents the payables portion of types of derivative financial instruments gualifying as guarantees which are financial instruments or other contractual arrangements with all three of the following characteristics: (a) it has (1) one or more underlyings and (2) one or more notional amounts or payment provisions or both. Those terms determine the amount of the settlement or settlements, and, in some cases, whether or not a settlement is required; (b) it requires no initial net investment or an initial net investment that is smaller than would be required for other types of contracts that would be expected to have a similar response to changes in market factors; and (c) its terms require or permit net settlement, it can readily be settled net by a means outside the contract, or it provides for delivery of an asset that puts the recipient in a position not substantially different from net settlement. Notwithstanding the above characteristics, loan commitments that relate to the origination of mortgage loans that will be held for sale shall be accounted for as derivative instruments by the issuer of the loan commitment (that is, the potential lender). Derivative Qualifying As Guarantees Receivables Derivative Qualifying As Guarantees Receivables This element represents the receivables portion of types of derivative financial instruments gualifying as guarantees which are financial instruments or other contractual arrangements with all three of the following characteristics: (a) it has (1) one or more underlyings and (2) one or more notional amounts or payment provisions or both. Those terms determine the amount of the settlement or settlements, and, in some cases, whether or not a settlement is required; (b) it requires no initial net investment or an initial net investment that is smaller than would be required for other types of contracts that would be expected to have a similar response to changes in market factors; and (c) its terms require or permit net settlement, it can readily be settled net by a means outside the contract, or it provides for delivery of an asset that puts the recipient in a position not substantially different from net settlement. Notwithstanding the above characteristics, loan commitments that relate to the origination of mortgage loans that will be held for sale shall be accounted for as derivative instruments by the issuer of the loan commitment (that is, the potential lender). Unsettled forward starting reverse repurchase and securities borrowing agreements Unsettled forward starting reverse repurchase and securities borrowing agreements This represents the amount of commitments to enter into forward starting reverse repurchase agreements and securities borrowing agreements. Unsettled reverse repurchase and securities borrowing agreements with regular way settlement periods Unsettled reverse repurchase and securities borrowing agreements with regular way settlement periods This represents the amount of commitments to enter into reverse repurchase and securities borrowing agreements with regular way settlement periods. Unfunded Commitments Investments Private Equity Funds Third Party Unfunded Commitments Investments Private Equity Funds Third Party This item represents unfunded commitments to invest in third party private equity funds. Unfunded Commitments Investments Other Equity Investments Unfunded Commitments Investments Other Equity Investments This item represents unfunded commitments to invest in other equity investments. Investments Valued at Net Asset Value, Unfunded Commitments, Investments, Fair Value Investments Valued at Net Asset Value, Unfunded Commitments, Investments, Fair Value This item represents the fair value of investments valued at net asset fair value for which there are unfunded commitments to make investments. Commitments To Extend Credit Leveraged And Acquisition Finance Activities Commitments To Extend Credit Leveraged And Acquisition Finance Activities Commitments related to leveraged and acquisition finance activities. Allowance For Credit Losses [Abstract] Allowance For Credit Losses. ALLOWANCE FOR CREDIT LOSSES Allowance for Credit Losses [Text Block] Noninterest Income, Other [Abstract] Noninterest Revenue, Policy [Policy Text Block] Revenue Recognition, Policy [Policy Text Block] Schedule of Derivative Fair Value Hedges, Gains (Losses) Included in Income, by Contract Type [Table] Schedule of Derivative Fair Value Hedges, Gains (Losses) Included in Income, by Contract Type [Table] Derivative Instruments, Gain (Loss) by Derivative Instrument Risk [Axis] Derivative Contract Type [Domain] Interest rate contract Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Fair value hedge gains (losses) recorded in income Fair value hedge gains and losses Abstract Fair value hedge gains and losses. Derivatives Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Hedged items Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge Total income statement impact Gain (Loss) on Fair Value Hedges Recognized in Earnings Hedge ineffectiveness Gain (Loss) on Fair Value Hedge Ineffectiveness, Net Excluded components Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net Included revenue related to certain foreign exchange trading derivatives Gain (Loss) on Foreign Currency Fair Value Hedge Derivatives Off-Balance Sheet Lending Related Financial Instruments, and Guarantees and Other Commitments Off-Balance Sheet Lending Related Financial Instruments, and Guarantees and Other Commitments [Table Text Block] Schedule of off-balance sheet lending related financial instruments, and guarantees and other commitments. Standby letters of credit and other financial guarantees and other letters of credit Standby letters of Credit and Other Financial Guarantees and Other Letters of Credit [Table Text Block] Schedule of standby letters of credit and other financial guarantees and other letters of credit. Summary of changes in mortgage repurchase liability Summary of Changes in Mortgage Repurchase Liability [Table Text Block] Schedule summary of changes in mortgage repurchase liability Loan Credit Quality by Portfolio Segment, Class, Geography, Delinquency and Risk Ratings [Table] [Table] Schedule of Loan Credit Quality, by Portfolio Segment and Class, by Geography, Delinquency, Risk Rating [Table] Schedule of Loan Credit Quality, by Portfolio Segment and Class, by Geography, Delinquency, Risk Rating [Table] Financing Receivable Information by Portfolio Segment [Axis] Class of Financing Receivable [Member] Class of Financing Receivable [Member] Commercial and industrial [Member] Commercial and industrial [Member] Class of financing receivables related to commercial and industrial industry. Real estate [Member] Real Estate [Member] Financial institutions [Member] Financial institutions [Member] Class of financing receivables related to financial institutions. Government agencies [Member] Government agencies [Member] Class of financing receivables related to government agencies. Other [Member] Wholesale Other Member Class of financing receivables related to special purpose entities, private bank clients, and other wholesale industries. Financing Receivable by Geographic Region [Axis] Loans outstanding by geographic region. Financing Receivable by Geographic Region [Domain] Financing Receivable by Geographic Region. Total U.S.[Member] Segment Geographical Entity's Country of Domicile [Member] For the segmented reporting of facts applicable to the entity's country of domicile, the United States. Total non-U.S.[Member] Segment Geographical, Countries Other Than Entity's Country of Domicile [Member] A fifth specified group of foreign countries about which segment information is provided by the entity. Financing Receivable By Delinquency Status [Axis] Financing Receivable By Delinquency Status [Axis] Loans outstanding by delinquency status. Financing Receivable By Delinquency Status [Domain] Financing Receivable By Delinquency Status [Domain] Financing Receivable By Delinquency Status. Current and less than 30 days past due and still accruing [Member] Current and less than 30 days past due and still accruing [Member] Current and less than 30 days past due and still accruing. 30-89 days past due and still accruing [Member] Days Past Due 30 To 89 And Still Accruing Member Retained loans that are 30-89 days past due. 150 or More Days Past Due [Member] Days Past Due 150 Or More [Member] Retained loans that are 150 days or more past due. 90 days or more past due and still accruing [Member] Past Due And Still Accruing 90 Days Or More Member Retained loans that are 90 days or more past due and still accruing interest. Nonaccrual [Member] Nonaccrual [Member] Retained loans for which the accrual of interest has been suspended. Guarantor Obligations by Payment and Performance Risk (Credit Rating) [Axis] Payment and Performance Risk (Credit Rating) [Axis] Credit Rating [Domain] Credit Rating [Domain] Investment grade [Member] Investment grade [Member] Credit-rating that is used to describe the performance risk of loans that connote investment grade. Investment grade ratings range from "AAA/Aaa" to "BBB-/Baa3". Total noninvestment grade [Member] Total noninvestment grade [Member] Credit-rating that is used to describe the performance risk of loans that connote non-investment grade. Non-investment grade is classified as noncriticized ("BB+/Ba1" and B-/B3") and criticized ("CCC+"/"Caa1 and lower"), and criticized is further subdivided into performing and nonaccrual loans. Non Criticized [Member] Noncriticized [Member] Credit-rating that is used to describe the performance risk of loans that connote noncriticized, which is the subcategory of non-investment grade. Non-investment grade is classified as noncriticized ("BB+/Ba1" and B-/B3") and criticized ("CCC+"/"Caa1 and lower"). Criticized performing [Member] Criticized Performing [Member] Credit-rating that is used to describe the performance risk of loans that connote criticized performing, which is the subcategory of non-investment grade. Non-investment grade is classified as noncriticized ("BB+/Ba1" and B-/B3") and criticized ("CCC+"/"Caa1 and lower"), and criticized is further subdivided into performing and nonaccrual loans. Criticized performing loans represent the loans on which the interest is still being accrued. Criticized total nonaccrual [Member] Criticized Nonaccrual [Member] Credit-rating that is used to describe the performance risk of loans that connote criticized nonaccrual, which is the subcategory of non-investment grade. Non-investment grade is classified as noncriticized ("BB+/Ba1" and B-/B3") and criticized ("CCC+"/"Caa1 and lower"), and criticized is further subdivided into performing and nonaccrual loans. Criticized nonaccrual loans represent the loans on which the accrual of interest is suspended. Loan credit quality and risk ratings [Line Items] Schedule of Loan Credit Quality, by Portfolio Segment and Class, by Geography, Delinquency, Risk Rating [Line Items] Schedule of Loan Credit Quality, by Portfolio Segment and Class, by Geography, Delinquency, Risk Rating [Line Items] Percentage of total criticized to total retained loans Percentage Of Total Criticized To Total Retained Loans Percentage Of Total Criticized To Total Retained Loans Percentage of total criticized to total retained loans. Percentage of nonaccrual loans to total retained loans Percentage of nonaccrual loans to total retained loans Percentage of nonaccrual loans to total retained loans. Net Charge Offs Net Charge Offs Net Charge Offs. Percentage of net charge-offs to retained loans Percentage of net charge-offs to retained loans Percentage of net charge-offs to retained loans. OFF BALANCE SHEET LENDING RELATED FINANCIAL INSTRUMENTS GUARANTEES AND OTHER COMMITMENTS Off Balance Sheet Lending Related Financial Instruments Guarantees And Other Commitments [Text Block] Description of lending related instruments and the allowance recorded to reflect obligations, contingent liabilities, guarantees, and other exposures relating to off-balance sheet arrangements such as unfunded loan commitments, contractual obligations, recourse from loans securitized, and variable interest entities. Noninterest Revenue (Tables) [Abstract] Noninterest revenue. Components of investment banking fees Components Of Investment Banking Fees [Text Block] Components of investment banking fees. Includes (1) underwriting revenue (the spread between the resale price received and the cost of the securities and related expenses) generated through the purchasing, distributing and reselling of new issues of securities (alternatively, could be a secondary offering of a large block of previously issued securities); and split between (a) equity and (b) debt underwriting; and (2) fees earned for mergers, acquisitions, divestitures, restructurings, and other types of financial advisory services. Principal transactions revenue Schedule of Principal Transactions Revenue [Table Text Block] Components of asset management, administration and commissions Components Of Asset Management Administration And Commissions Text Block Components of asset management, administration and commissions. Combination of: 1) Revenue recognized in the period for (A) performance (incentive) fees based on the investment results achieved for management of certain institutional accounts and hedge funds, (B) schedule-based fees earned for management of mutual funds and closed-end funds, based either on average daily net assets or on a combination of the average daily net assets and gross income, and (C) other investment management and advisory fees. 2) Acting as an agent, a broker-dealer may buy and sell securities on behalf of its customers. In return for such services, the broker-dealer charges a commission. Each time a customer enters into a buy or sell transaction, a commission is earned by the broker-dealer for its selling and administrative efforts. For securities purchased, the commission is recorded as a receivable from customers; for securities sold, it is recorded as reductions in the payable to customers. Commissions earned are usually related to the broker-dealer's customers' trading volume and the dollar amounts of the trades. In general, commissions are for smaller trades of exchange-listed stocks and bonds made by retail customers. 3)Income from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (A) acting as an agent for fiduciary placement and loans and (B) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department. 4) Income from agency and brokerage operations (includes sales of annuities and supplemental contracts); service charges, commissions, and fees from the sale of insurance and related services; and management fees from separate accounts, deferred annuities, and universal life products. 5) Revenues from providing transfer agent services to corporations. Such services include maintaining records of investors and account balances and transactions, canceling and issuing certificates, processing investor mailings and dealing with any associated problems (i.e. lost or stolen certificates). 6) Service revenue earned by a depository institution that holds the account balances of other financial institutions and provides services thereto. Such services include check collection and item processing. 7) Fee and commission revenue earned from sources not otherwise specified in the existing taxonomy, such as ADR fees, fund accounting fees, etc. Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Table] Derivative Receivables Net Of Payables [ Member] Derivative Receivables Net Of Payables Member. Debt and Equity Instruments [Member] Debt and equity instruments such as securities, certificates of deposit, bankers' acceptances, commercial paper, loans, physical commodities and other financial instruments, excluding derivative instruments. Servicing Contracts [Member] Private Equity Funds [Member] Fair Value by Liability Class [Axis] Fair Value, Liabilities, Measured on Recurring Basis, Unobservable Input Reconciliation, by Liability Class [Domain] Long-term debt Long-term Debt [Member] Fair Value, Measurements, Recurring [Member] Fair Value, Measurements, Nonrecurring [Member] Trading Assets Line Item [Member] Line item of the Balance Sheet in which the fair value amounts of the derivative instruments are included. Corporate Private Equity [Member] Corporate/Private Equity. Derivative receivables [Member] Derivative [Member] Structured Credit Derivatives [Member] Structured credit derivatives with corporate debt underlying Credit Default Swap [Member] Reverse Mortgage [Member] Represents reverse mortgages. Loans Held-For-Sale [Member] Loans receivable that will be sold to other entities. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Such loans are stated at the lower of cost or market, or elected fair value. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan). Asset backed Security Available for Sale [Member] Asset-backed security, available-for-sale. Loans Retained [Member] Loans Retained [Member] Loans that are held for investment excluding loans held-for-sale and loans at fair value. Level 3 [Member] Level 3 Analysis - Supplemental Data [Abstract] Level 3 Analysis - Supplemental Data [Abstract] Available-for-sale securities Available-for-sale Securities, Fair Value Disclosure Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Credit Enhancement Percentage Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Credit Enhancement Percentage This item represents the percentage of available-for-sale securities with a credit enhancement against the loss of value in the underlying assets in the security which were considered and relied upon as one of the potential factors in reaching a conclusion that the available-for-sale investments are not other-than-temporarily impaired. Trading assets Trading Account Assets, Fair Value Disclosure Fair value of assets Assets, Fair Value Disclosure Percentage of level 3 assets in total Firm assets Percentage of Level 3 Assets To Total Assets The percentage of level 3 assets as compared to total assets of the entity. Increase (decrease) in level 3 assets Increase (Decrease) In Level 3 Assets This item represents the change during the period in the amount assets which are measured at fair value on either a recurring or nonrecurring basis and fall within Level 3 of the fair value measurements hierarchy. Level 3 inputs are unobservable inputs for the asset. Unobservable inputs are used to measure fair value to the extent that observable inputs are not available; such as, when there is little, if any, market activity for the asset or liability at the measurement date. Gains (losses) on level 3 assets Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Gain Loss This element represents total gains or losses for the period (realized and unrealized), arising from assets measured at fair value on a recurring basis using unobservable inputs (Level 3), which are included in other comprehensive income or earnings or resulted in a change in net asset value. Gains Losses Related To Residential And Commercial Loans Gains Losses Related To Residential And Commercial Loans Gains (losses) related to residential and commercial loans. Gains Losses On Certain Asset Backed Securities Gains Losses On Certain Asset Backed Securities Gains (losses) on certain asset-backed securities that fall within Level 3 of the fair value measurements hierarchy. Level 3 inputs are unobservable inputs for the asset or liability. Unobservable inputs are used to measure fair value to the extent that observable inputs are not available; such as, when there is little, if any, market activity for the asset or liability at the measurement date. Gain (Loss) Related to Level Three Long-term Structured Note Liabilities Gain (Loss) Related to Level Three Long-term Structured Note Liabilities Gain (loss) related to long-term structured note liabilities that fall within Level 3 of the fair value measurements hierarchy. Level 3 inputs are unobservable inputs for the asset or liability. Unobservable inputs are used to measure fair value to the extent that observable inputs are not available; such as, when there is little, if any, market activity for the asset or liability at the measurement date. Pension and Other Postretirement Employee Benefit Plans (Details) [Abstract] Pension and Other Postretirement Employee Benefit Plans. OPEB plans, Non-U.S., United Kingdom [Member] Foreign Postretirement Benefit Plans, Defined Benefit, United Kingdom [Member] Postretirement defined benefit plans outside the reporting entity's home country, specifically in the United Kingdom. A plan that defines postretirement benefits in terms of monetary amounts (for example, $100,000 of life insurance) or benefit coverage to be provided (for example, up to $200 per day for hospitalization, 80 percent of the cost of specified surgical procedures, and so forth). Any postretirement benefit plan that is not a defined contribution postretirement plan is a defined benefit postretirement plan. Defined Benefit Plan by Plan Asset and Liability Categories [Axis] Plan Asset Categories [Domain] United States Equity Securities Member [Member] United States Equity Securities Member [Member] United States Equity Securities Member Defined contribution pension plans [Member] Defined Contribution Pension [Member] Common/collective trust funds [Member] Trust Funds, Common or Collective [Member] Common or collective trust funds, generally including commingled funds that are issued for investment by qualified pension plans. Contractually Required Payments [Member] Overfunded Plans [Member] Participation Rights Under Participating Annuity Contracts [Member] Accrued Receivables [Member] Accrued Liabilities [Member] Underfunded Plans [Member] Defined Benefit Plan, Fair Value of Plan Assets by Measurement [Axis] Defined Benefit Plan, Fair Value of Plan Assets by Measurement [Axis] Fair Value Plan Asset Measurement [Domain] Fair Value Plan Asset Measurement [Domain] Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Level 2 [Member] Fair Value Plan Asset Measurement [Member] Fair Value Plan Asset Measurement [Member] Fair Value Plan Asset Measurement. Pension and other postretirement employee benefit plans (Numeric) [Abstract] Pension And Other Postretirement Employee Benefit Plans Details Textuals Abstract Pension and Other Postretirement Employee Benefit Plans. Defined benefit pension plan, U.S., discretionary deductible cash contribution Defined benefit pension plan, non-U.S., expected contribution, 2010 Excess Retirement Plan, unfunded projected benefit obligation Excess Retirement Plan, unfunded projected benefit obligation Description of defined contribution pension and other postretirement plans Description of Defined Contribution Pension and Other Postretirement Plans Funded/(unfunded) status Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on Assets Defined benefit plan, assumptions used in calculating net periodic benefit cost, expected long-term return on assets expected in the next fiscal year Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets In Next Fiscal Year An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation, in the next fiscal year. Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year Defined Benefit Plan, Interest Crediting Rate Defined Benefit Plan, Interest Crediting Rate Defined Benefit Plan, Interest Crediting Rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Projected increase in U.S. defined benefit pension and OPEB plan expense resulting from a 25-basis point decline in the expected long-term rate of return on U.S. plan assets Projected Increase in US Defined Benefit Pension and OPEB Plan Expense Resulting From a 25 Basis Point Decline in Expected Long-Term Rate of Return on US Plan Assets Projected increase in U.S. defined benefit pension and OPEB plan expense resulting from a 25-basis point decline in the expected long-term rate of return on U.S. plan assets. Projected increase in U.S. defined benefit pension and OPEB plan expense resulting from a 25-Basis point decline in the discount rate for the U.S. plans Projected Increase in US Defined Benefit Pension and OPEB Plan Expense Resulting from a 25 Basis Point Decline in Discount Rate For US Plans Projected increase in U.S. defined benefit pension and OPEB plan expense resulting from a 25-basis point decline in the discount rate for the U.S. plans. Projected increase in U.S. defined benefit pension and OPEB benefit obligations resulting from a 25-Basis point decline in the discount rate for the U.S. plans Projected Increase in US Defined Benefit Pension and OPEB Benefit Obligations Resulting from a 25-Basis Point Decline in the Discount Rate for the US Plans Projected increase in U.S. defined benefit pension and OPEB benefit obligations resulting from a 25-basis point decline in the discount rate for the US plans. Projected increase in non-U.S. defined benefit pension and OPEB plan expense resulting from a 25-basis point decline in the discount rate for the non-U.S. plans Projected Increase in Non-US Defined Benefit Pension and OPEB Plan Expense Resulting from a 25 Basis Point Decline in Discount Rate For Non-US Plans Projected increase in non-U.S. defined benefit pension and OPEB plan expense resulting from a 25-basis point decline in the discount rate for the non-U.S. plans. Projected increase in U.S. defined benefit pension benefit obligations resulting from a 25-basis point increase in the interest crediting rate for the U.S. defined benefit pension plan Projected Increase In US Defined Benefit Pension Benefit Obligations Resulting From A25 Basis Boint Increase In Interest Crediting Rate For US Defined Benefit Pension Plan Projected increase in U.S. defined benefit pension benefit obligations resulting from a 25-basis point increase in the interest crediting rate for the U.S. defined benefit pension plan. Defined Benefit Plan, Amount of Plan Investments Held in Funds that are Sponsored or Managed by Affiliates of the Firm Defined Benefit Plan Amount Of Plan Investments Held In Funds That Are Sponsored Or Managed By Affiliates Of Entity For defined benefit and OPEB plans, amount of plan investments held in funds that are sponsored or managed by affiliates of the entity. Defined Benefit Plan, Target Allocation Percentage Defined Benefit Plan, Target Allocation Percentage Defined Benefit Plan, Unfunded Commitments to Purchase Limited Partnership Investments for the Plan Defined Benefit Plan Unfunded Commitments To Purchase Limited Partnership Investments For The Plan Unfunded commitments to purchase limited partnership investments for a defined benefit plan. Defined Benefit Plan, Fair Value, Investments Valued at Net Asset Value Defined Benefit Plan Fair Value Investments Valued At Net Asset Value Fair value of investments valued at Net Asset Value (NAV) for a defined benefit plan. Defined Benefit Plan, Common or Collective Trust Funds, Percent Invested in Short-Term Investment Funds Defined Benefit Plan, Common or Collective Trust Funds, Percent Invested in Short-Term Investment Funds Within a defined benefit pension plan, the percentage of common or collective trust funds invested in short-term investment funds. Defined Benefit Plan, Common or Collective Trust Funds, Percent Invested in Equity (Index) Investments Defined Benefit Plan, Common or Collective Trust Funds, Percent Invested in Equity (Index) Investments Within a defined benefit pension plan, the percentage of common or collective trust funds invested in equity (index) investments. Defined Benefit Plan, Common or Collective Trust Funds, Percent Invested in International Investments Defined Benefit Plan, Common or Collective Trust Funds, Percent Invested in International Investments Within a defined benefit pension plan, the percentage of common or collective trust funds invested in international investments. Defined benefit pension plan, mortgage-backed securities -percent invested in debt issued by U.S. government agencies Defined Benefit Plan, Mortgage-Backed Securities, Percent Invested in Debt Issued by U.S. Government Agencies Within a defined benefit pension plan, the percentage of mortgage-backed securities invested in debt issued by U.S. government agencies. Defined benefit pension plan, derivative receivables - percent invested in foreign exchange contracts Defined Benefit Plan, Derivative Receivables, Percent Invested in Foreign Exchange Contracts Within a defined benefit pension plan, the percentage of derivative receivables invested in foreign exchange contracts. Defined benefit pension plan, derivative receivables - percent invested in equity warrants Defined Benefit Plan, Derivative Receivables, Percent Invested in Equity Warrants Within a defined benefit pension plan the percentage of derivative receivables invested in equity warrants. Defined benefit pension plan, excluded amount of U.S. receivables for investments sold and dividends and interest receivables Defined Benefit Plan, Excluded Amount of U.S. Receivables for Investments Sold and Dividends and Interest Receivables Within a defined benefit pension plan, the excluded amount of U.S. receivables for investments sold and dividends and interest receivables. Defined Benefit Plan, Excluded Amount of Non-U.S. Receivables for Investments Sold and Dividends and Interest Receivables Defined Benefit Plan, Excluded Amount of Non-U.S. Receivables for Investments Sold and Dividends and Interest Receivables Within a defined benefit pension plan, the excluded amount of non-U.S. receivables for investments sold and dividends and interest receivables. Defined Benefit Plan, Excluded Amount of Payables for Investments Purchased Defined Benefit Plan Excluded Amount Of Payables For Investments Purchased Within a defined benefit pension plan, the excluded amount of payables for investments purchased. Defined Benefit Plan, Excluded Amount of Other Liabilities Defined Benefit Plan Excluded Amount Of Other Liabilities Within a defined benefit pension plan, the excluded amount of other liabilities. OPEB plan, amount of funding with COLI policies, classified within level 3 of the valuation hierarchy Other Postretirement Benefit Plan Amount Of Funding With Corporate Owned Life Insurance Policies Classified Within Level Three Of Valuation Hierarchy Other postretirement benefit plan amount of funding with corporate owned life insurance policies classified within level three of valuation hierarchy. Projected Increase in U.S. Defined Benefit Pension Plan Expense Resulting from a 25-Basis Point Increase in the Interest Crediting Rate for the U.S. Plans Projected Increase in US Defined Benefit Pension Plan Expense Resulting From a 25 Basis Point Increase in the Interest Crediting Rate for the US Plans Projected Increase in U.S. Defined Benefit Pension Plan Expense Resulting from a 25-Basis Point Increase in the Interest Crediting Rate for the U.S. Plans. Unfunded postretirement benefit obligation, U.K. Plan Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities Interest Income (Expense), Net [Abstract] INTEREST INCOME AND INTEREST EXPENSE Interest Income and Interest Expense Disclosure [Text Block] Employee Stock-Based Incentives Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Restrictions on Cash and Intercompany Funds Transfer Disclosure [Abstract] Restrictions on Cash and Intercompany Funds Transfer Disclosure [Abstract] Restrictions on cash and intercompany funds transfers Restrictions On Cash And Intercompany Funds Transfer [Text Block] Disclosure of: (1) Cash and cash items which are restricted as to withdrawal or usage as well as the provisions of any restrictions. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. (2) Disclosure of cash and securities segregated in compliance with regulations (such as cash deposited in a special reserve account for the exclusive benefit of customers). (3) Disclosure of all information regarding a banking or savings institution's compliance during the year with (a) federal and state laws and regulations relative to dividend restrictions and (b) federal laws and regulations relative to insider loans. (4) Disclosure of the amount of reserve balances held at various Federal Reserve Banks. Debt Disclosure [Abstract] Long-term debt carrying values by contractual maturity Long-term debt carrying values by contractual maturity [Text Block] A summary of long-term debt carrying values (including unamortized original issue discount, valuation adjustments and fair value adjustments, where applicable) by contractual maturity. Outstanding trust preferred capital debt securities Junior Subordinated Debenture Owed To Unconsolidated Subsidiary Trust Text Block A summary of the outstanding junior subordinated long-term debt owed to unconsolidated subsidiary trusts, including unamortized original issue discount, issued by each trust, and the junior subordinated deferrable interest debenture issued to each trust. DEPOSITS Deposit Liabilities Disclosures [Text Block] Condensed Financial Information of Parent Company Only Disclosure [Abstract] InterCompany Transactions by Subsidiary InterCompanyTransactionsBySubsidiary [Axis] Identifies the other entity (a consolodated subsidiary, non-consolodated subsidiary or non-subsidiary third party), with which the parent company transacts. Subsidiaries and Third Parties Subsidiaries and Third Parties [Domain] Identifies subsidiaries and non-subsidiary third parties who participate in transactions with the parent company. Bank and Bank Holding Company Subsidiaries Bank and Bank Holding Company Subsidiaries [Member] Bank and Bank Holding Company Subsidiaries [Member] Nonbank Subsidiaries Nonbank Subsidiaries [Member] Nonbank Subsidiaries [Member] Non-Subsidiaries Non-Subsidiaries [Member] Results and activities of operating that are not directly related to the results and operaitons of a subsidiary entity. Parent company statements of income Income Statement [Abstract] Income Revenues [Abstract] Dividends from subsidiaries Cash Dividends Paid to Parent Company by Consolidated Subsidiaries Interest income from subsidiaries and third parties Interest and Dividend Income, Operating Other income(loss) from subsidiaries and third parties Noninterest Income Total net revenue Revenues Expense Operating Expenses [Abstract] Interest expense to subsidiaries and third parties Interest Expense Labor and Related Expense Total expense Expense Aggregate amount of expenses recognized during the period. Includes both interest expense and noninterest expense. Income before income tax expense/(benefit) and extraordinary gain Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax benefit Income Tax Expense (Benefit) Equity in undistributed net income of subsidiaries Undistributed Net Income Subsidiaries The amount attributable to the parent company of equity in undistributed net income earned by subsidiaries during the period. Parent company condensed financial statements supplemental information Schedule Of Condensed Financial Statements Abstract Schedule of condensed financial statements. Dividends From Guaranteed Capital Debt Securities Dividends From Guaranteed Capital Debt Securities Represents the total of dividend income received by the parent company from trusts that issued guaranteed capital debt securities. Credit Quality of Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Delinquency [Table] Credit Quality of Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Delinquency [Table] Credit Quality of Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Delinquency [Table] Residential real estate, excluding PCI [Member] Class of financing receivables related to residential real estate, excluding purchased credit-impaired loans. Prime Mortgages, including option ARMs [Member] Class of financing receivables related to prime residential financing receivables, as well as option ARMs. Mortgage Loans Insured by US Government Agencies [Member] Mortgage Loans Insured by US Government Agencies [Member] Past Due 90 Days Or More And Government Guaranteed [Member] Retained loans which are 90 days or more past due but insured by U.S. government agencies. 30 - 149 Days Past Due [Member] Days Past Due, 30 to 149 [Member] Retained loans that are 30-149 days past due. Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Delinquency [Line Items] Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Delinquency [Line Items] Percentage of Loans 30 Plus Days Past Due To Total Retained Loans Percentage Of Loans Thirty Plus Days Past Due To Total Retained Loans This item represents the percentage of loans 30 plus days past due as compared to total retained loans. Prime Mortgage Loans Repurchased From Government National Mortgage Association Pools Mortgage Loans Insured By US Government Agencies Excluded From The Percentage Of Thirty Or More Days Past Due To Retained Loans Deposits [Table] Deposits [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair value Deposits [Line Items] Deposits [Line Items] Noninterest-bearing and interest-bearing deposits [Abstract] Deposits, Interest-bearing and Noninterest-bearing, Alternative [Abstract] U.S. offices: Deposits, Domestic [Abstract] Noninterest-bearing Noninterest-bearing Deposit Liabilities, Domestic Interest-bearing Interest-bearing Deposit Liabilities, Domestic, by Component [Abstract] Demand Interest-bearing Domestic Deposit, Demand Savings Interest-bearing Domestic Deposit, Savings Time (included $3,861 and $2,733 at fair value) Interest-bearing Domestic Deposit, Time Deposits Total interest-bearing deposits Interest-bearing Deposit Liabilities, Domestic Total deposits in U.S. offices Deposits, Domestic Non-U.S. offices: Deposits, Foreign [Abstract] Noninterest-bearing Noninterest-bearing Deposit Liabilities, Foreign Interest-bearing Interest-bearing Deposit Liabilities, Foreign, by Component [Abstract] Demand Interest-bearing Foreign Deposit, Demand Savings Interest-bearing Foreign Deposit, Savings Time (included $1,072 and $1,636 at fair value) Interest-bearing Foreign Deposit, Time Deposits Total interest-bearing deposits Interest-bearing Deposit Liabilities, Foreign Total deposits in non-U.S. offices Deposits, Foreign Total deposits Derivative instruments [Abstract] Derivative instruments [Abstract] Derivatives, Policy [Policy Text Block] Derivatives, Policy [Policy Text Block] Notional amount of derivative contracts Schedule of Derivative Instruments [Table Text Block] Impact of derivatives on the Consolidated Balance Sheets Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Fair value hedge gains and losses Disclosure of Fair value hedge gains and losses [Table Text Block] Disclosure of Fair value hedge gains and losses. Cash flow hedge gains and losses Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Net investment hedge gains and losses Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Risk management derivatives gains and losses (not designated as hedging instruments) Schedule of Price Risk Derivatives [Table Text Block] Trading derivative gains and losses Schedule of Derivative Instruments Included in Trading Activities [Table Text Block] Current credit risk of derivative receivables and liquidity risk of derivative payables Disclosure of Current Credit And Liquidity Risk of Derivatives [Table Text Block] Disclosure of the current credit risk of derivative receivables and the liquidity risk of derivative payables. Credit Derivatives Table Disclosure of Credit Derivatives [Table Text Block] Protection sold - credit derivatives and credit-related notes ratings/maturity profile Protection Sold Credit Derivatives And Credit Related Notes Ratings Maturity Profile [Table Text Block] Protection Sold Credit Derivatives And Credit Related Notes Ratings Maturity Profile [Table Text Block] Changes in the credit loss component of credit-impaired debt securities, securities with no intent to sell [Abstract] Changes in the credit loss component of credit impaired debt securities Securities Not Held For Sale Abstract Changes in the credit loss component of credit-impaired debt securities, Securities Not Held For Sale. Balance, beginning of period Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held Additions: Additions Abstract Additions Abstract. Newly credit-impaired securities Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment Increase in losses on previously credit-impaired securities Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses Losses reclassified from other comprehensive income on previously credit-impaired securities Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Change in Status Reductions: Reductions Abstract Reductions Abstract. Sales of credit-impaired securities Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold Impact of new accounting guidance related to VIEs New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income Balance, end of period Federal Reserve Bank of New York [Member] Federal Reserve Bank of New York [Member] Federal Reserve Bank of New York. Investment Type [Axis] Investment Type Categorization [Domain] Available-for-sale Securities [Member] Fair value of non-consolidated assets held by VIEs Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card Loans and Leases Receivable, Gross, Consumer, Revolving, Credit Card Variable Interest Entity used in FRBNY transaction Variable Interest Entity, Qualitative or Quantitative Information Variable Interest Subordinated Loan Contract Amount Variable Interest Subordinated Loan Contract Amount Quantifies the contract amount of the entity's exposure to the variable interest entity. Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Financing Receivable, Troubled Debt Restructurings that Subsequently Defaulted [Axis] Financing Receivable, Troubled Debt Restructurings that Subsequently Defaulted [Domain] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Default Rate for Modified Credit Card Loans, Estimated Weighted Average Rate of Default for Modified Loans, Estimated Weighted Average This item represents the estimated weighted average default rate for modified loans. Impaired Credit Card Loans Credit Card Impaired Loans [Abstract] Credit Card Impaired Loans [Abstract] Credit card loans with modified payment terms Financing Receivable, Modifications, Recorded Investment Total impaired loans Impaired Financing Receivable, Recorded Investment Allowance for loan losses related to impaired loans Impaired Financing Receivable, Related Allowance Unpaid principal balance of impaired loans Loans And Leases Receivable Impaired Unpaid Principal Balance The unpaid principal balance related to impaired loans. Average balance of impaired loans during the period: Average Balance Of Impaired Loans Abstract Average balance of impaired loans during the period. Average impaired loans Impaired Financing Receivable, Average Recorded Investment Interest income on impaired loans Impaired Financing Receivable, Interest Income, Accrual Method Premises and Equipment [Abstract] Premises and Equipment Abstract. Premises and Equipment Property, Plant and Equipment Disclosure [Text Block] Loan balances by portfolio segment Loan balances by portfolio segment Abstract Loan balances by portfolio segment. Held-for-sale Loans Receivable Held For Sale Excluding Loans At Fair Value The aggregate carrying amount of loans receivable that will be sold to other entities, excluding loans that the entity has elected to carry at fair value. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Such loans are stated at the lower of cost or market. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan). At fair value Loans Receivable At Fair Value The aggregate carrying amount of loans receivable that that the entity has elected to carry at fair value. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan). Total loans Loans And Leases Receivable Deferred Costs Loan purchases and sales, and reclassifications from retained loans to loans held-for-sale excludes loans recorded at fair value Loan Purchases And Sales And Reclassifications From Retained Loans To Loans Held For Sale Excludes Loans Recorded At Fair Value Abstract Loan purchases and sales, and reclassifications from retained loans to loans held-for-sale excludes loans recorded at fair value. Purchases Financing Receivable, Significant Purchases Sales Financing Receivable, Significant Sales Retained loans reclassified to held-for-sale Financing Receivable, Reclassification to Held-for-sale Loan sales by portfolio segment [Abstract] Loan sales by portfolio segment. Net gains/(losses) on sales of loans (including lower of cost or fair value adjustments) Gain (Loss) on Sales of Loans, Net Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member] Nonconsolidated Private-Label Re-securitizations [Member] Aggregated disclosure of private-label re-securitizations that are sponsored by the reporting entity, which constitute a group of similar Variable Interest Entities (VIE) which are not included in the consolidated financial statements of the entity because the entity does not have a controlling financial interest (not the primary beneficiary). Mortgage Securitization Entities Mortgage Securitization Entities [Member] Mortgage securitization entities. Securitization or Asset-backed Financing Arrangements, Financial Asset for which Transfer is Accounted as Sale by Type [Axis] Re securitizations [Member] Re-securitization transactions in which debt securities are transferred to a private-label variable interest entity in exchange for new beneficial interests. Private label Resecuritizations [Member] Re-securitization transactions in which debt securities are transferred to a private-label variable interest entity in exchange for new beneficial interests. Securities transferred to agency resecuritization VIEs Securities Transferred To Agency Resecuritization VIEs Amount of securities transferred to agency re-securitization VIEs during the period. Securities transferred to private-label re-securitization VIEs Securities Transferred To Private Label Resecuritization VIEs Amount of securities transferred to private-label re-securitization VIEs during the period. Senior and subordinated interest in nonconsolidated agency re-securitization entities Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Variable Interest Entity, Consolidated, Carrying Amount, Liabilities Assets Unfunded Portion of Commitments to Multi-Seller Conduits Program-Wide Credit Enhancement Required Amount Program-Wide Credit Enhancement Required Amount Required amount of program-wide credit enhancement. Commercial paper issued by consolidated Variable Interest Entities eliminated in Consolidation CommercialPaperIssuedByConsolidatedVariableInterestEntitiesEliminatedInConsolidation The amount of commercial paper issued by variable interest entities that was elminated in consolidation. Schedule of Income Before Income Tax Domestic and Foreign Schedule of Income Before Income Tax Domestic and Foreign [Table] Schedule of Income Before Income Tax Domestic and Foreign [Table] Domestic Country [Member] Domestic Country [Member] Components of income tax expense/(benefit) Components of Income Tax Expense (Benefit) [Line Items] Income Tax Expense Benefit. U.S. and non-U.S. components of income before income tax expense/(benefit) and extraordinary gain Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract] U.S. Income (Loss) from Continuing Operations before Income Taxes, Domestic Non-U.S. Income (Loss) from Continuing Operations before Income Taxes, Foreign Income before income tax expense/(benefit) and extraordinary gain Noninterest Expense [Abstract] Noninterest Expense Components Of Noninterest Expense [Text Block] Disclosure of details of items comprising noninterest expense. Preferred stock Stockholders' Equity Note Disclosure [Text Block] Regulatory capital Regulatory Capital Requirements [Abstract] Tier 1 capital Total capital Risk-weighted assets Risk Weighted Assets Risk-weighted assets as calculated in accordance with U.S. federal regulatory capital standards. Adjusted average assets Adjusted Average Assets Adjusted average assets, as calculated in accordance with U.S. federal regulatory capital standards. Capital ratios Risk Based Ratios [Abstract] Tier 1 capital Tier One Risk Based Capital to Risk Weighted Assets Tier 1 capital - Well capitalized ratio Tier One Risk Based Capital Required to be Well Capitalized to Risk Weighted Assets Tier 1 capital - Minimum capital ratio Tier One Risk Based Capital Required for Capital Adequacy to Risk Weighted Assets Total capital Capital to Risk Weighted Assets Total capital - Well-capitalized ratio Capital Required to be Well Capitalized to Risk Weighted Assets Total capital - Minumum capital ratio Capital Required for Capital Adequacy to Risk Weighted Assets Tier 1 leverage Tier One Leverage Capital to Average Assets Tier 1 leverage - Well-capitalized ratio Tier One Leverage Capital Required to be Well Capitalized to Average Assets Tier 1 leverage - Minimum capital ratio Tier One Leverage Capital Required for Capital Adequacy to Average Assets Regulatory capital, assets and risk based ratios - supplemental information [Abstract] Regulatory Capital, Assets and Risk Based Ratios - Supplemental Information [Abstract] Regulatory Capital, Assets and Risk Based Ratios - Spplemental Information [Abstract] Trust preferred capital debt securities Tier 1 capital, excluding trust preferred capital debt securities Tier One Risk Based Capital Excluding Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Tier 1 capital if junior subordinated long-term debt owed to unconsolidated subsidiary trusts were excluded from the calculation. Tier 1 capital ratio, excluding trust preferred capital debt securities Tier One Risk Based Capital Ratio Excluding Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust Tier 1 capital ratio if junior subordinated long-term debt owed to unconsolidated subsidiary trusts were excluded from the calculation. Risk-weighted assets, off-balance sheet Off-balance Sheet Risk-weighted Assets Off-balance sheet risk-weighted assets as calculated in accordance with U.S. federal regulatory capital standards. Adjustments to Capital for Deferred Tax Liabilities [Abstract] Adjustments to Capital for Deferred Tax Liabilities [Abstract] Minimum Tier One Leverage Ratio for Bank Holding Companies and Banks Possibility One Minimum Tier One Leverage Ratio for Bank Holding Companies and Banks Possibility One The minimum Tier 1 leverage ratio for bank holding companies and banks depending on factors specified in regulations issued by the Federal Reserve and OCC, possibility one. Minimum Tier One Leverage Ratio for Bank Holding Companies and Banks Possibility Two Minimum Tier One Leverage Ratio for Bank Holding Companies and Banks Possibility Two The minimum Tier 1 leverage ratio for bank holding companies and banks depending on factors specified in regulations issued by the Federal Reserve and OCC, possibility two. Adjustments to Capital for Deferred Tax Liabilities Resulting from Nontaxable Business Combinations Adjustments to Capital for Deferred Tax Liabilities Resulting from Nontaxable Business Combinations Adjustments to capital for deferred tax liabilities resulting from nontaxable business combinations. Adjustments to Capital for Deferred Tax Liabilities Resulting from Tax-deductible Goodwill Adjustments to Capital for Deferred Tax Liabilities Resulting from Tax-deductible Goodwill Adjustments to capital for deferred tax liabilities resulting from tax-deductible goodwill. Segment, Business [Domain] Investment Bank Investment Bank [Member] Investment Bank. Retail Financial Services Retail Financial Services [Member] Retail Financial Services. Card Services Card Services And Auto [Member] Card Services & Auto. Commercial Banking Commercial Banking [Member] Commercial Banking. Treasury & Securities Services Treasury And Securities Services [Member] Treasury And Securities Services Asset Management [Member] Asset Management [Member] Corporate/Private Equity Total goodwill Risk-based capital ratios for JPMorgan Chase and its significant banking subsidiaries Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Reconciliation of the Firm's total stockholders' equity to Tier 1 capital and Total qualifying capital Reconciliation of Total Stockholders' Equity to Tier One Capital and Total Qualifying Capital [Text Block] A table disclosing the reconciliation of total stockholders' equity to Tier 1 capital and Total qualifying capital. Common stock Variable Interest Entities (Tables) [Abstract] Detailed item-by-item disclosures of variable interest entities and related information according to the following classifications: (1) VIEs consolidated because the registrant is the primary beneficiary, (2) VIEs not consolidated because the registrant is not the primary beneficiary, and (3) VIEs or potential VIEs that are not consolidated because necessary information is not available. Incremental impact at adoption [Table Text Block] Incremental impact at adoption [Text Block] Impact of adopting new consolidation guidance for VIEs and its incremental effect on assets, liablities, stockholders' equity and Tier 1 capital. Firm-sponsored mortgage and other consumer securitization trusts [Table Text Block] Firm Sponsored Mortgage And Other Consumer Securitization Trusts [Text Block] Firm sponsored mortgage and other consumer securitization trusts broken-out by loan type as well as by principal amount outstanding. Also details the amount of the Firm's interest in securitized assets in nonconsolidated VIEs. Firm's exposure to nonconsolidated municipal bond VIEs [Table Text Block] Firms Exposure To Nonconsolidated Municipal Bond V I Es [Text Block] Firm's exposure to nonconsolidated municipal bond VIEs detailing the fair value of assets held by VIEs, liquidity facilities, excess/deficit, and maximum exposure. Ratings profile of the VIEs' assets [Table Text Block] Ratings Profile Of V I Es Assets [Text Block] Ratings profile of VIE's assets broken-out by investment grade and noninvestment grade and showing the total fair value of assets held by VIEs and the weighted average expected life of assets. Exposure to nonconsolidated credit-linked note and asset swap VIEs [Table Text Block] Exposure To Nonconsolidated Credit Linked Note And Asset Swap Vies [Text Block] Exposure to nonconsolidated credit linked note and asset swap VIEs. Information on assets and liabilities related to VIEs that are consolidated by the Firm [Table Text Block] Information On Assets And Liabilities Related To V I Es That Are Consolidated By Firm [Text Block] Detailed item-by-item disclosures of variable interest entities and related information according to the following classifications: (1) VIEs consolidated because the registrant is the primary beneficiary. Securitization activities [Table Text Block] Securitization Activities [Text Block] Securitization activities. Summary of loan sale activities [Table Text Block] Summary Of Loan Sale Activities [Text Block] A table summarizing loan sale activities related to mortgage loans sold during the reporting period. The loan may be sold to the Government National Mortgage Association (Ginnie Mae), the Federal National Mortgage Association (Fannie Mae) and the Federal Home Loan Mortgage Corporation (Freddie Mac).This table excludes loans sold related to securitization activities. Key economic assumptions used to determine the fair value of certain Firm's retained interests in nonconsolidated VIEs, other than MSRs [Table Text Block] Schedule Of Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Excluding Servicing Assets Or Servicing Liabilities Text Block A sensitivity analysis or stress test showing the hypothetical effect on the fair value of those interests (excluding any servicing assets or servicing liabilities) of two or more unfavorable variations from the expected levels for each key assumption that is reported, independently determined from any change in another key assumption, and a description of the objectives, methodology, and limitations of the sensitivity analysis or stress test. Information about delinquencies, net charge-offs, and components of off-balance sheet securitized financial assets [Table Text Block] Information About Delinquencies, Net Charge Offs And Components Of Off Balance Sheet Securitized Financial Assets [Text Block] Information about delinquencies, net charge-offs and components of off-balance sheet securitized financial assets. Preferred Stock Including Additional Paid in Capital [Member] Earliest date Cumulative Preferred Stock, Series E [Member] Cumulative Preferred Stock Series, F [Member] Cumulative Preferred Stock, Series G [Member] Fixed To Floating Rate Noncumulative Perpetual Preferred Stock Series I [Member] Fixed To Floating Rate Noncumulative Perpetual Preferred Stock Series I [Member] Fixed To Floating Rate Noncumulative Perpetual Preferred Stock, Series I. Noncumulative Perpetual Preferred Stock Series J [Member] Noncumulative Perpetual Preferred Stock Series J [Member] Noncumulative Perpetual Preferred Stock, Series J. Cumulative Perpetual Preferred Stock, Series K [Member] Schedule of Preferred Stock Schedule Of Stock By Class Preferred Abstract Summary of preferred stock outstanding. Shares of preferred stock authorized to issue, in one or more series Preferred Stock, Shares Authorized Preferred stock, par value per share Preferred Stock, Par or Stated Value Per Share Rate payable quarterly at an annual dividend rate after April 2018, Preferred Stock, Series I Preferred Stock, Dividend Payment Rate, Variable Dividend, description of variable rate basis Dividend, Description of Variable Rate Basis The reference rate for the variable rate used to determine the dividend rate. Dividend, basis spread on variable rate Dividend, basis spread on variable rate The percentage points added to the reference rate to compute the dividend rate. Redemption of preferred stock Shares Preferred Stock, Shares Issued Carrying value (in millions) Earliest preferred stock redemption date Preferred Stock, Redemption Date Share value and redemption price per share Preferred Stock, Redemption Price Per Share Basis Of Presentation Policies [Text Block] Basis Of Presentation Policies [Text Block] Description of the basis of accounting used to prepare the financial statements (for example, U.S. Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). Reclassifications [Text Block] Reclassifications [Text Block] Consolidation, Policy [Policy Text Block] Consolidation, Policy [Policy Text Block] Use of Estimates, Policy [Policy Text Block] Use of Estimates, Policy [Policy Text Block] Foreign Currency Transactions and Translations Policy [Policy Text Block] Foreign Currency Transactions and Translations Policy [Policy Text Block] Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Fair Value of Financial Instruments, Fair Value Option, Policy [Policy Text Block] Fair Value of Financial Instruments, Fair Value Option, Policy [Policy Text Block] The policy financial instruments where the fair value has been elected. Interest Income And Interest Expense [Policy Text Block] Interest Income And Interest Expense [Policy Text Block] Describes an entity's accounting policy for reporting Interest Income And Interest Expense. Pension and Other Postretirement Plans, Policy [Policy Text Block] Pension and Other Postretirement Plans, Policy [Policy Text Block] Employee Stock-Based Incentives, Policy [Policy Text Block] Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Marketable Securities, Available-for-sale Securities, Policy [Policy Text Block] Marketable Securities, Available-for-sale Securities, Policy [Policy Text Block] Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Securities Financing Activities, Policy [Policy Text Block] Transfers and Servicing of Financial Assets, Transfers of Financial Assets, Financings, Policy [Policy Text Block] Loans, Policy [Policy Text Block] Finance, Loans and Leases Receivable, Policy [Policy Text Block] Allowance for Credit Losses, Policy [Policy Text Block] Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Mortgage Servicing Rights, Policy [Policy Text Block] Transfers and Servicing of Financial Assets, Servicing of Financial Assets, Policy [Policy Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Property, Plant and Equipment, Policy [Policy Text Block] Long-term Debt, Policy [Policy Text Block] Debt, Policy [Policy Text Block] Accumulated Other Comprehensive Income Policy [Policy Text Block] Accumulated Other Comprehensive Income Policy [Policy Text Block] Describes an entity's accounting policy for accumulated other comprehensive income. Income Tax, Policy [Policy Text Block] Income Tax, Policy [Policy Text Block] Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block] Off-Balance-Sheet Credit Exposure, Policy [Policy Text Block] Litigation Reserve Policy Commitments and Contingencies, Policy [Policy Text Block] Foreign Pension Plans And Other Foreign Postretirement Benefit Plans Of Member Foreign Pension Plans And Other Foreign Postretirement Benefit Plans Of Member The name of the defined benefit pension plan or other postretirement define benefit plan, or a description of the plans grouped, for Foreign Pension Plans. Aggregate of all of an employer's defined benefit pension plans and aggregate of all of an employer's other defined benefit postretirement plans unless disaggregating in groups is considered to provide useful information or is otherwise required. International Equity Securities [Member] International Equity Securities [Member] Hedge Funds [Member] Real estate[Member] Defined Benefit Plan Amount Of Plan Investments Held In Funds That Are Sponsored Or Managed By Affiliates Of Entity Weighted-average asset allocation of the fair values of total plan assets Defined Benefit Plan, Actual Plan Asset Allocations [Abstract] Asset category Asset category Abstract Asset category. Debt securities - Target Allocation, Minimum Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities, Range Minimum Debt securities - Target Allocation, Maximum Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities, Range Maximum Debt securities - Target Allocation Defined Benefit Plan, Target Allocation Percentage of Assets, Debt Securities Debt securities - % of plan assets Defined Benefit Plan, Debt Securities Equity securities - Target Allocation, Minimum Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities, Range Minimum Equity securities - Target Allocation, Maximum Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities, Range Maximum Equity securities - Target Allocation Equity securities - % of plan assets Defined Benefit Plan, Equity Securities Real estate - Target Allocation, Minimum Defined Benefit Plan, Target Allocation Percentage of Assets, Real Estate, Range Minimum Real estate - Target Allocation, Maximum Defined Benefit Plan, Target Allocation Percentage of Assets, Real Estate, Range Maximum Real Estate - Target Allocation Defined Benefit Plan, Target Allocation Percentage of Assets, Real Estate Real estate - % of plan assets Defined Benefit Plan, Real Estate Alternatives - Target Allocation, Minimum Defined Benefit Plan, Target Allocation Percentage of Assets, Other, Range Minimum Alternatives - Target Allocation, Maximum Defined Benefit Plan, Target Allocation Percentage of Assets, Other, Range Maximum Alternatives - Target Allocation Defined Benefit Plan, Target Allocation Percentage of Assets, Other Alternatives - % of plan assets Defined Benefit Plan, Other Plan Assets Total - Target Allocation Defined Benefit Plan Target Allocation Percentage of Assets The aggregate target allocation percentage of the fair value of investments of total plan assets held as of the measurement date. Total - % of plan assets Defined Benefit Plan, Actual Plan Asset Allocations Other Borrowed Funds (Tables) [Abstract] Other Borrowed Funds. Other Borrowed Funds Total Other Borrowed Funds Text Block Other Borrowed Funds, which includes: (1) Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer. (2) Federal home loan bank borrowings. Deposits (Details) [Abstract] Deposits. Time Deposits, by Maturity [Table] Time Deposits, by Maturity [Table] A table or schedule providing information pertaining to maturities of time deposits. Geographic Areas [Axis] Statement, Geographical [Axis] Segment, Geographical [Domain] Segment, Geographical [Domain] Non-U.S. U.S. Time Deposits, by Maturity [Line Items] Time Deposits, by Maturity [Line Items] Time deposits by maturity. Time deposits in denominations of $100,000 or more Time Deposits, $100,000 or More [Abstract] U.S. Time Deposits, $100,000 or More, Domestic Non-U.S. Time Deposits, $100,000 or More, Foreign Total Time Deposits, $100,000 or More Maturities of interest bearing time deposits Time Deposits, by Maturity [Abstract] 2012 Time Deposit Maturities, Year One 2013 Time Deposit Maturities, Year Two 2014 Time Deposit Maturities, Year Three 2015 Time Deposit Maturities, Year Four 2016 Time Deposit Maturities, Year Five After 5 years Time Deposit Maturities, after Year Five Total Time Deposits Credit Quality of Residential Real Estate - PCI Loans, by Class, by Delinquency [Table] Credit Quality of Residential Real Estate - PCI Loans, by Class, by Delinquency [Table] Credit Quality of Residential Real Estate - PCI Loans, by Class, by Delinquency [Table] PCI Option ARMs [Member] Class of financing receivable related to option ARMs with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. PCI Home Equity [Member] Class of financing receivable related to home equity loans with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. PCI Prime Mortgage [Member] Class of financing receivable related to prime mortgage loans with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. PCI Subprime Mortgage [Member] Class of financing receivable related to subprime mortgage loans with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. Residential Real Estate PCI Loans by Delinquency [Line Items] Residential RealEstate - PCI Loans, by Delinquency [Line Items] Estimated weighted-average life of the portfolio over which net spread will be earned on a declining loan balance Estimated weighted-average life of the portfolio over which net spread will be earned on a declining loan balance Estimated weighted-average life of the portfolio over which net spread will be earned on a declining loan balance. Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Value Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Carrying Value Certain Loans Acquired In Transfer Not Accounted For As Debt Securities CarryingValue. Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Allowance for Loan Losses Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Outstanding Balance Percentage Of Loans Thirty Plus Days Past Due To Total Retained Loans Litigation (Details) [Abstract] Litigation. Loss Contingencies [Table] Loss Contingencies [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Settlement of Litigation [Member] Settlement of Litigation [Member] Litigation by Court Jurisdiction [Axis] This axis is used to identity litigation by the court or jurisdiction in which the litigation is being motioned or heard. Litigation by Court Jurisdiction [Domain] Litigation by Court Jurisdiction [Domain] New York State Court [Member] New York State Court [Member] Federal District Court of New York [Member] Federal District Court of New York [Member] Western District Court of Washington [Member] Western District Court of Washington [Member] United States District Court, Southern Disctict of New York [Member] United States District Court, Southern Disctict of New York [Member] Loss Contingencies by Nature of Contingency [Axis] Loss Contingencies by Nature of Contingency [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Pending or Threatened Litigation [Member] Pending or Threatened Litigation, by material legal proceeding description [Member] Pending or Threatened Litigation, by material legal proceeding description [Member] Pending or threatened litigation against the Firm, by material legal proceeding description. Auction-Rate Securities Investigations and Litigation [Member] Auction Rate Securities Investigations and Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to auction-rate securities investigations and litigation. Bear Stearns Hedge Fund Matters [Member] Bear Stearns Hedge Fund Matters, not specifically related to the feeder funds [Member] The risk of loss associated with the outcome of pending or threatened litigation related to Bear Stearns hedge fund matters, but not specifically related to the "feeder funds". Bear Stearns Hedge Fund Matters, Related to the Feeder Funds Bear Stearns Hedge Fund Matters, Related to the Feeder Funds [Member] The risk of loss associated with the outcome of pending or threatened litigation related to funds, which were organized such that there were U.S. and Cayman Islands “feeder funds” that invested substantially all their assets, directly or indirectly, in the Bear Stearns Hedge Funds. Bear Stearns Hedge Fund Matters, Feeder Funds, Enhanced Leverage Fund [Member] The risk of loss associated with the outcome of pending or threatened litigation related to funds, which were organized such that there were U.S. and Cayman Islands “feeder funds” that invested substantially all their assets, directly or indirectly, in the Bear Stearns Hedge Funds, specificially connected with the Enhanced Leverage Fund. Bear Stearns Hedge Fund Matters, feeder funds, High Grade Fund [Member] Bear Stearns Hedge Fund Matters, Feeder Funds, High Grade Fund [Member] The risk of loss associated with the outcome of pending or threatened litigation related to funds, which were organized such that there were U.S. and Cayman Islands “feeder funds” that invested substantially all their assets, directly or indirectly, in the Bear Stearns Hedge Funds, specificially connected with the High Grade Fund. Bear Stearns Shareholder Litigation and Related Matters [Member] Bear Stearns Shareholder Litigation and Related Matters [Member] The risk of loss associated with the outcome of pending or threatened litigation related to Bear Stearns shareholder litigation and related matters. Breach of Fiduciary Duty Litigation [Member] The allegations in all of these actions are essentially identical, and involve claims against the Firm for aiding and abetting fraud, aiding and abetting breach of fiduciary duty, conversion and unjust enrichment. City of Milan Litigation and Criminal Investigation [Member] City of Milan Litigation and Criminal Investigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to the City of Milan litigation and criminal investigation. Enron Litigation [Member] Enron Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to Enron litigation. Interchange Litigation [Member] Interchange Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to interchange litigation. Investment Management Litigation [Member] Investment Management Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to JPMorgan Investment Management. Lehman Brothers Bankruptcy Proceedings [Member] Lehman Brothers Bankruptcy Proceedings [Member] The risk of loss associated with the outcome of pending or threatened litigation related to the Lehman Brothers bankruptcy proceedings. LIBOR Investigations and Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to London Interbank Offered Rate (“LIBOR”) investigations and litigation. Madoff Litigation [Member] Madoff Litigation, not specifically related to Fairfield [Member] The risk of loss associated with the outcome of pending or threatened litigation related to the Bernard L. Madoff litigation, but not specifically related to the liquidation proceedings of Fairfield Sentry Limited and Fairfield Sigma Limited (together, "Fairfield"). Madoff Litigation, related to Fairfield [Member] Madoff Litigation, related to Fairfield [Member] The risk of loss associated with the outcome of pending or threatened litigation related to Madoff litigation, specifically concerning the liquidation proceedings of Fairfield Sentry Limited and Fairfield Sigma Limited. MF Global [Member] MF Global [Member] The risk of loss associated with the outcome of pending or threatened litigation related to MF Global litigation and related matters. Mortgage-Backed Securities Litigation and Regulatory Investigations [Member] Mortgage Backed Securities Litigation and Regulatory Investigations [Member] The risk of loss associated with the outcome of pending or threatened litigation related to mortgage-backed securities litigation and regulatory investigations. Mortgage Backed Securities Litigation Related to MBS Offerings Sponsored By EMC [Member] The risk of loss associated with the outcome of pending or threatened litigation related to mortgage-backed securities litigation and regulatory investigations, specific to the MBS offerings sponsored by EMC Mortgage LLC (formerly EMC Mortgage Corp) ("EMC"). Mortgage Backed Securities Litigation Related to MBS Offerings Sponsored By Washington Mutual [Member] Mortgage Backed Securities Litigation Related to MBS Offerings Sponsored By Washington Mutual [Member] The risk of loss associated with the outcome of pending or threatened litigation related to mortgage-backed securities litigation and regulatory investigations, specific to the MBS offerings sponsored by Washington Mutual. Mortgage Backed Securities Litigation Related to MBS Offerings Sponsored By JPMorgan Chase [Member] Mortgage Backed Securities Litigation Related to MBS Offerings Sponsored By JPMorgan Chase [Member] The risk of loss associated with the outcome of pending or threatened litigation related to mortgage-backed securities litigation and regulatory investigations, specific to the MBS offerings sponsored by JPMorgan Chase. Mortgage Foreclosure Investigations and Litigation [Member] Mortgage Foreclosure Investigations and Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to mortgage foreclosure investigations and litigation. Municipal Derivatives Investigations and Litigation [Member] Municipal Derivatives Investigations and Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to municipal derivatives investigations and litigation. Overdraft Fee/Debit Posting Order Litigation [Member] Overdraft Fee/Debit Posting Order Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to over draft fee and debit posting order litigation. Petters Bankruptcy and Related Matters [Member] Petters Bankruptcy and Related Matters [Member] The risk of loss associated with the outcome of pending or threatened litigation related to the Thomas J. Petters bankruptcy and related matters. Securities Lending Litigation [Member] Securities Lending Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to securities lending litigation. Securities Lending Litigation, related to medium-term notes of Sigma Finance [Member] Securities Lending Litigation related to medium term notes of Sigma Finance [Member] The risk of loss associated with the outcome of pending or threatened litigation related to securities lending litigation, specifically in connection with medium-term notes of Sigma Finance Inc. Securities Lending Litigation, related to medium-term notes of Lehman Brothers [Member] Securities Lending Litigation related to medium term notes of Lehman Brothers [Member] The risk of loss associated with the outcome of pending or threatened litigation related to securities lending litigation, specifically in connection with medium-term notes of Lehman Brothers. Service Members Civil Relief Act and Housing and Economic Recovery Act Investigations and Litigation [Member] Service Members Civil Relief Act And Housing And Economic Recovery Act Investigations And Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to the Service Members Civil Relief Act ("SCRA") and the Housing and Economic Recovery Act of 2008 ("HERA"). Washington Mutual Litigations [Member] Washington Mutual Litigations, not specifically in connection with disputed assets [Member] The risk of loss associated with the outcome of pending or threatened litigation related to the Washington Mutual litigations, but not specifically in connection with disputed assets. Washington Mutual Litigations, in connection with disputed trust securities [Member] Washington Mutual Litigations, in connection with disputed trust securities Member The risk of loss associated with the outcome of pending or threatened litigation related to Washington Mutual litigations, in connection with disputed trust securities contributed by WMI to Washington Mutual Bank. Washington Mutual Litigations, in connection with disputed deposit accounts [Member] Washington Mutual Litigations, in connection with disputed deposit accounts [Member] The risk of loss associated with the outcome of pending or threatened litigation related to Washington Mutual litigations, in connection with disputed deposit accounts at Washington Mutual Bank and one of its subsidiaries. Loss Contingencies by Name Associated with Contingency [Axis] Loss Contingencies by Name Associated with the Contingency [Axis] Names an identified party or parties that is associated with the loss contingency. Loss Contingencies by Associated Party, Litigation-related [Domain] Loss Contingencies by Associated Party Litigation related [Domain] Names an identified party or parties that is associated with a litigation-related matter, such as a plaintiff, defendant or other named identified person or group. Pending or Threatened Litigation, by plaintiff [Member] Pending or Threatened Litigation, by plaintiff [Member] Pending or threatened litigation against the Firm, by plaintiff. Plaintiff, Bank of America [Member] Plaintiff, Bank of America [Member] Bank of America, as a plaintiff in a lawsuit related to the Firm. Plaintiff, Deutsche Bank National Trust Company [Member] Plaintiff, Deutsche Bank National Trust Company [Member] Deutsche Bank National Trust Company, as a plaintiff in a lawsuit related to the Firm. Plaintiff, Lehman Brothers-related, SIPA Trustee Plaintiff, Lehman Brothers-related, SIPA Trustee for LBHI’s U.S. broker-dealer subsidiary [Member] The Trustee for the Securities Investor Protection Act of 1970 (“The SIPA Trustee”) for Lehman Brothers Holdings Inc.’s (LBHI’s) U.S. broker-dealer subsidiary. Plaintiff, Madoff Litigation-related, liqudation trustee [Member] Plaintiff, trustee for the liquidation of Bernard L Madoff Investment Securities LLC [Member] The trustee for the liquidation of Bernard L. Madoff Investment Secuirities LLC, as a plaintiff in a lawsuit related to the Firm. Plaintiff, National Credit Union Administration [Member] Plaintiff, National Credit Union Administration [Member] Plaintiff, Federal Housing Finance Administration [Member] Plaintiff, Federal Housing Finance Administration [Member] Plaintiff, Municipal Derivatives-related, one insurer [Member] Plaintiff, one insurer within the Municipal Derivatives Investigations and Litigation [Member] One insurer, as a plaintiff in the municipal derivatives investigations and litigation. Plaintiff, Municipal Derivatives-related, the other insurer [Member] Plaintiff, the other insurer within the Municipal Derivatives Investigations and Litigation [Member] The other insurer, as a plaintiff in the municipal derivatives investigations and litigation. Plaintiffs, SCRA and HERA litigation-related [Member] Plaintiffs in litigation related to the Service M4embers Civil Relief Act (“SCRA”) and Housing and Economic Recovery Act of 2008 (“HERA”). Plaintiffs, SCRA and HERA, Borrowers Initially in Class Action [Member] Plaintiffs in litigation related to the Service Members Civil Relief Act (“SCRA”) and Housing and Economic Recovery Act of 2008 (“HERA”). This group of plaintiffs represent borrowers who were initially part of the class action. Plaintiffs, SCRA and HERA, Borrowers Subsequently Added to Class Action [Member] Plaintiffs in litigation related to the Service Members Civil Relief Act (“SCRA”) and Housing and Economic Recovery Act of 2008 (“HERA”). This group of plaintiffs represent borrowers who were subsequently added to the class action. Plaintiff, U.S. Department of Justice [Member] The United States Department of Justics ("DOJ"), as a plaintiff in a lawsuit related to the Firm. Loss Contingencies in Connection with a Specific Named Event [Axis] Loss Contingencies in Connection with a Specific Named Event [Axis] Loss contingencies or related details in connection with a specific named event in connection with a specific named event. The named event may include a specific announcement, such as a negotiated settlement; a named natural or man-made disaster; or a named specific crisis event, such as a bankruptcy, collapse or fraud discovery. Loss Contingencies in Connection with a Specific Named Event [Domain] Loss Contingencies in Connection with a Specific Named Event [Domain] Loss Contingencies in Connection with a Specific Named Event [Domain] Global settlement on servicing and origination of mortgages [Member] Global settlement on servicing and origination of mortgages [Member] On February 9, 2012, the Firm announced that it agreed to a settlement in principle (the “global settlement”) with a number of federal and state government agencies, including the Department of Justice, the Department of Housing and Urban Development, the Consumer Financial Protection Bureau and the State Attorneys General, relating to the servicing and origination of mortgages. Washington Mutual, Inc. bankruptcy plan confirmation [Member] Washington Mutual, Inc. bankruptcy plan confirmation [Member] On February 17, 2012, a bankruptcy court confirmed the joint plan containing the global settlement agreement resolving numerous disputes among Washington Mutual, Inc. (“WMI”), JPMorgan Chase and the Federal Deposit Insurance Corporation (“FDIC”) as well as significant creditor groups (the “Global Settlement Agreement”). Loss Contingencies in Connection with a Specific Type of Settlement [Axis] Loss Contingencies in Connection with a Specific Type of Settlement [Axis] In connection with a loss contingency where a legal settlement is specified in detail, the nature of th settlement. Loss Contingencies in Connection with a Specific Type of Settlement [Domain] Loss Contingencies in Connection with a Specific Type of Settlement [Domain] Loss Contingencies in Connection with a Specific Type of Settlement [Domain] Settlement of Litigation, Cash Payments [Member] Settlement of Litigation, Cash Payments [Member] Describes the amount of cash payments the entity is called to make as a result of a resolution of pending or threatened litigation after the balance sheet date. Settlement of Litigation, Additional Relief Provided to Certain Borrowers [Member] Settlement of Litigation, Additional Relief Provided to Certain Borrowers [Member] Describes the amount of additional relief the entity is called to make to certain borrowers whose loans are owned by the entity, including reductions of principal on first and second liens, payments to assist with short sales, deficiency balance waivers on past foreclosures and short sales, and forbearance assistance for unemployed homeowners, as a result of a resolution of pending or threatened litigation after the balance sheet date. Settlement of Litigation, Refinancing Relief Provided to Certain Borrowers [Member] Settlement of Litigation, Refinancing Relief Provided to Certain Borrowers [Member] Describes the amount of refinancing relief the entity is called to make to certain “underwater” borrowers whose loans are owned by the entity as a result of a resolution of pending or threatened litigation after the balance sheet date. Range [Axis] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Loss Contingency, Estimate [Abstract] Loss Contingency, Estimate [Abstract] Litigation expense (benefit) Loss Contingency, Information about Litigation Matters [Abstract] Loss Contingency, Information about Litigation Matters [Abstract] Number of Legal Proceedings Number of Legal Proceedings This concept represents a count of various legal proceedings, including private, civil litigations and regulatory/government investigations. Number of Tranches of Mortgage Backed Securities to Which Asserted Claims Are Limited Number of Tranches of Mortgage Backed Securities to Which Asserted Claims Are Limited The limited number of tranches of mortgage backed securities in which named plaintiffs purchased that were made available by the court for plaintiffs to pursue asserted claims. Number of Offerings by Entity Related to Filed Suit Number of Offerings by Entity Related to Filed Suit Number of offerings of which entity was either issuers or underwriters, related to a suit filed in which the entity is a defendant. Number of Asserted Causes of Action Against Entity Number of Asserted Causes of Action Against Entity Number of causes of action against entity asserted in amended lawsuit complaint. Number of Asserted Causes of Action Against Entity That Seek to Avoid Transfers to Entity Number of Asserted Causes of Action Against Entity That Seek to Avoid Transfers to Entity Number of causes of action against entity asserted in amended lawsuit complaint that seek to avoid certain transfers made to entity, alleged to have been preferential or fraudulent under federal Bankruptcy Code and New York Debtor and Creditor Law. Number of Finalized Consent Agreements with NASAA Member States Number of Finalized Consent Agreements With North American Securities Administrators Association Member States Number of consent agreements for settlement, which have been finalized to date with North American Securities Administrators Association ("NASAA") member states. Number of Mortgage Loans Sought by Plaintiff for Repurchase Mortgage Loans Sought by Plaintiff for Repurchase Number of mortgage loans being sought by the plaintiff in a legal action for repurchase Number of Trusts Related to an MBS Securitization Number of Trusts Related to an MBS Securitization The number of trusts related to an MBS securitization. Percentage of Voting Rights, MBS Trust Certificateholders Percentage of Voting Rights, MBS Trust Certificateholders Percentage of voting rights of certificateholders of a mortgage-backed security (MBS) trust. Loss Contingency, Damages Sought, Value Loss Contingency, Damages Sought, Value Loss Contingency, Damages Sought, Recoveries, Value Loss Contingency, Damages Sought, Recoveries, Value The value (monetary amount) of the award the plaintiff seeks in the legal matter, specifically in connection with recoveries. Loss Contingency, Damages Sought, Counterclaims, Value Loss Contingency, Damages Sought, Counterclaims, Value The value (monetary amount) of counterclaims that the defendant seeks from the plaintiff in the legal matter. Loss Contingency, Information about related Resources or Markets [Abstract] Loss Contingency, Information about related Resources or Markets [Abstract] Information related to resources or markets associated with a loss contingency. Examples might be the size of a market (value in dollars). A resource can include financial assets or liabilities such as amounts of specific financial instruments or values of client accounts which are in dispute, such as in a litigation matter. The association of the resources or markets with the loss contingency does not imply that the value or size of the resources or markets represents a possible or potential loss. Loss Contingency, Insured Aggregate Principal Amount related to, Value The currently claimed estimated value of an aggregate principal amount insured associated with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Interchange Fees Industry-Wide related to, Value Loss Contingency, Interchange Fees Industry-Wide related to, Value The value of interchange fees industry-wide associated with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Investments in Medium-Term Notes related to, Value The current estimated value of investments in medium-term notes associated with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Mortgage-Backed Securities Offerings related to, Value Loss Contingency Mortgage Backed Securities Offerings related to Value The currently estimated value of mortgage-backed securities (“MBS”) offerings associated with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Mortgage-Backed Securities Trusts, Original Principal Amount Related To, Value Loss Contingency, Mortgage-Backed Securities Trusts, Original Principal Amount Related To, Value The currently estimated value of the original principal amount associated with mortgage-backed securities (“MBS”) trusts. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Municipal Derivatives, Annual Market related to, Value Loss Contingency, Municipal Derivatives, Annual Market related to, Value The current estimated value of annual market size for municipal derivatives associated with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Securities Issued by Securitization Trusts related to, Value Loss Contingency, Securities Issued by Securitization Trusts related to, Value The currently estimated value of securities issued by securitization trusts associated with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Securities Purchased in Connection With, Value The currently estimated value of securities purchased in connection with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Securitization related to, Value Loss Contingency, Securitization related to, Value The value of a financial securitization associated with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Shares related to, Outstanding Loss Contingency, Shares related to, Outstanding Number of shares issued and outstanding associated with a loss contingency, during the period described. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Shares related to, Price per Share Loss Contingency, Shares related to, Price per Share Price per share of shares associated with a loss contingency, during the period described. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Warrants Issued related to, Value The current estimated value of warrants issued associated with a loss contingency. The association of the line item with the loss contingency does not imply that the line item's value represents a possible or potential loss. Loss Contingency, Settlement [Abstract] Litigation Settlement, Gross Litigation Settlement, Gross Goodwill and Other Intangible Assets [Abstract] Goodwill And Intangible Assets Disclosure Including Mortgage Servicing Rights Msrs. Fair Value, Assets and Liabilities Measured on Recurring Basis [Table] Netting adjustments [Member] Netting and Collateral [Member] Fair Value, Option, Quantitative Disclosures, by Eligible Item or Group [Axis] Fair Value, Option, Eligible Item or Group [Domain] Total debt and equity instruments [Member] Total debt instruments [Member] Debt Instruments [Member] Debt instruments such as debt securities, certificates of deposit, bankers' acceptances, commercial paper and loans. Commercial - nonagency [Member] Certificates Of Deposit Bankers Acceptances Commercial Paper [Member] Certificates Of Deposit Bankers Acceptances Commercial Paper [Member] Represents a combination of certificates of deposit, bankers’ acceptances and commercial paper. A certificate of deposit ("CD") is a short to medium-term, FDIC insured investment available at banks and savings and loan institutions. Customers agree to lend money to the institutions for a certain amount of time. In exchange for doing so, the customers is paid a predetermined rate of interest. Often, banks will charge a penalty fee if the money is withdrawn from the CD before it matures. A banker's acceptance, which often is used to finance shipments of goods to bank customers, is a short-term time draft that a bank (drawee) has agreed to pay at maturity by stamping "accepted" over the signature of an officer. When the bank accepts the draft, it guarantees its redemption at maturity, which makes the draft negotiable. In return for the guarantee, the party on whose behalf the bank accepts the draft (drawer) agrees to provide the bank with the necessary funds prior to maturity. The bank receives a fee for creating the acceptance. The drawer's outstanding debt to the bank is reported as an asset, and the bank's obligation is reported as a liability. Bankers' acceptances are similar to other short-term borrowed funds in that they can be effectively used for short-term liquidity needs by avoiding disbursing funds for short-term loans to bank customers. Commercial paper is an unsecured promissory note that provides creditworthy institutions, typically finance companies or holding companies of banks and savings institutions with short-term funds. Commercial paper is generally short-term (at most 270 days, but usually much less) and negotiable. Residential Conforming Mortgage Intended for Sale to Government Agency [Member] Conforming residential mortgage loans originated with the intent to sell to U.S. government agencies Equity Instuments [Member] Equity Instuments [Member] Other equity instruments [Member] Other Debt and Equity Instruments [Member] Represents other types of debt and equity instruments. Physical commodities [Member] Commodities Investment [Member] Credit Derivative [Member] Total other assets [Member] Other Assets [Member] Private Equity Funds [Member] All other assets [Member] All Other Asset Classes [Member] All other asset classes not individually reported in connection with the fair value disclosures required in the footnote disclosures to the financial statements. A class of assets will often require greater disaggregation than the line items presented in the statement of financial position. An asset class is determined on the basis of the nature, characteristics, and risks of the asset as well as the level in the fair value hierarchy within which the fair value measurement is categorized. Assets and liabilities measured at fair value on a recurring basis [Line Items] Assets and liabilities measured at fair value on a recurring basis [Abstract] Fair Value, Assets and Liabilities Measured on Recurring Basis [Abstract] Federal funds sold and securities purchased under resale Federal Funds Sold And Securities Purchased Under Agreements To Resell, Fair Value Disclosure This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis. Securities borrowed Securities Borrowed, Fair Value Disclosure Loans, at fair value Loans Receivable, Fair Value Disclosure Total other assets Other Assets, Fair Value Disclosure Total assets measured at fair value on a recurring basis Assets, Fair Value Disclosure, Recurring Deposits Deposits, Fair Value Disclosure Deposits, at fair value Federal funds purchased and securities loaned or sold under repurchase agreements Federal Funds Purchased and Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Other borrowed funds Federal Home Loan Bank Advances and Other Short-term Borrowings, Fair Value Disclosure This element represents a certain statement of financial position liability caption which represents a class of liabilities, or which may include an individual liability, measured at fair value on a recurring basis. Trading liabilities Trading Liabilities, Fair Value Disclosure Accounts payable and other liabilities Accounts Payable and Accrued Liabilities, Fair Value Disclosure Accounts Payable and Other Accrued Liabilities Accounts Payable and Other Accrued Liabilities Beneficial interests issued by consolidated VIEs, at fair value Beneficial Interest, Fair Value Disclosure This element represents a certain statement of financial position liability caption which represents a class of liabilities, or which may include an individual liability, measured at fair value on a recurring basis. Long-term debt Long-term Debt, Fair Value Long Term Debt Borrowings Long Term Debt Borrowings Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, and other types of debt (other than junior subordinated deferrable interest debentures held by trusts that issued guaranteed capital debt securities), which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Total liabilities at fair value on a recurring basis Liabilities, Fair Value Disclosure Fair value assets and liabilities measured on recurring basis - supplemental data Fair Value Assets Measured On Recurring Basis Numeric [Abstract] -- None. No documentation exists for this element. -- Total U.S. government-sponsored enterprise obligations U S Government Sponsored Enterprises Debt Securities Represents investments in debentures, bonds and other debt securities issued by GSEs, such as the Federal Home Loan Mortgage Corporation (FHLMC or Freddie Mac), Federal National Mortgage Association (FNMA or Fannie Mae), and the Federal Home Loan Bank (FHLB). Excludes debt issued by the Government National Mortgage Association (GNMA or Ginnie Mae), which is backed by the full faith and credit of the US Government. Reduction In Level Three Derivative Receivable And Derivative Payable Balances Reduction In Level Three Derivative Receivable And Derivative Payable Balances This element represents the net amount as of the balance sheet date of the fair value of derivative assets and derivative liabilities that in accordance with the entity's accounting policy would have been offset under a master netting arrangement, excluding the benefit of cash collateral, if the entity was to net such balances . Costs of the private equity investment portfolio Costs of the private equity investment portfolio This element represents the cost basis of the private equity investment portfolio. Investment valued at net asset value Investment valued at net asset value This item represents the complete disclosure regarding the investments in certain entities that calculate net asset value per share (or its equivalent, for example, member units or an ownership interest in partners' capital to which a proportionate share of net assets is attributed) that enables users to understand the nature and risks of the investments and whether the investments are probable of being sold at amounts different from net asset value per share (or its equivalent). Such disclosure would include (1) the fair value of the investments in the major category, and a description of the significant investment strategies of the investee(s) in the major category; (2) for each major category of investment that includes investments that can never be redeemed with the investees, but the reporting entity receives distributions through the liquidation of the underlying assets of the investees, the reporting entity's estimate of the period of time over which the underlying assets are expected to be liquidated by the investees; (3) the amount of the entity's unfunded commitments related to investments in the major category; (4) a general description of the terms and conditions upon which the investor may redeem investments in the major category (for example, quarterly redemption with 60 days' notice); (5) the circumstances in which an otherwise redeemable investment in the major category (or a portion thereof) might not be redeemable (for example, due to a lockup or the imposition of a gate); (6) for those otherwise redeemable investments that are restricted from redemption as of the reporting entity's measurement date, the entity's best estimate of when the restriction from redemption might lapse; if an estimate cannot be made, the entity shall disclose that fact and how long the restriction has been in effect; (7) any other significant restriction on the ability to sell investments in the major category at the measurement date; (8) total fair value of held for sale investment(s) and any remaining actions required to complete the sale when the reporting entity determines that it is probable that it will sell the investment(s) for an amount different from net asset value per share (or its equivalent); and (9) disclosure of the entity's plans to sell and any remaining actions required to complete the sale when the entity intends to sell a group of investments, but the individual investments to be sold have no been identified. Fair Value Level Three To Level Two Transfers Amount Fair Value Level Three To Level Two Transfers Amount The amount of the transfers of assets or liabilities measured on a recurring basis out of Level 3 of the fair value hierarchy into Level 2. Securities Financing Activities (Tables) [Abstract] Securities Financing Activities. Components of Collateralized Financings Components of collateralized financings [Text Block] Components of collateralized financings including repurchase agreements (also known as repos), resale agreements (also known as reverse repurchase agreements or reverse repos), securities borrowed transactions, and securities loaned transactions. Credit risk concentrations (Details) [Abstract] Credit risk concentrations. Concentration Risk [Table] Concentration Risk [Table] Concentration Risk By Portfolio Type [Axis] Concentration Risk by Portfolio Segment [Axis] Concentration risk by portfolio. Concentration Risk By Portfolio Segment [Domain] Concentration Risk By Portfolio Segment [Domain] Concentration risk by portfolio segment. Concentration Risk by Type [Axis] Concentration Risk by Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Banks and Finance Companies Credit Risk Concentration [Member] Banks and Finance Companies Credit Risk Concentration [Member] Concentration of credit risk related to banks and finance companies. Real Estate Credit Risk Concentration [Member] Real Estate Credit Risk Concentration [Member] Concentration of credit risk related to the real estate industry. Healthcare Credit Risk Concentration [Member] Healthcare Credit Risk Concentration [Member] Concentration of credit risk related to the healthcare industry. State and Municipal Governments Credit Risk Concentration [Member] State and Municipal Governments Credit Risk Concentration [Member] Concentration of credit risk related to state and municipal governments. Oil and Gas Credit Risk Concentration [Member] Oil and Gas Credit Risk Concentration [Member] Concentration of credit risk related to the oil and gas industry. Asset Managers Credit Risk Concentration [Member] Asset Managers Credit Risk Concentration [Member] Concentration of credit risk related to asset managers. Consumer Products Credit Risk Concentration [Member] Consumer Products Credit Risk Concentration [Member] Concentration of credit risk related to consumer products. Utilities Credit Risk Concentration [Member] Utilities Credit Risk Concentration [Member] Concentration of credit risk related to utilities. Retail and Consumer Services Credit Risk Concentration [Member] Retail and Consumer Services Credit Risk Concentration [Member] Concentration of credit risk related to the retail and consumer services industries. Technology Credit Risk Concentration [Member] Technology Credit Risk Concentration [Member] Concentration of credit risk related to the technology industry. Central Government Credit Risk Concentration [Member] Central Government Credit Risk Concentration [Member] Concentration of credit risk related to central governments. Machinery and Equipment Manufacturing Credit Risk Concentration [Member] Machinery and Equipment Manufacturing Credit Risk Concentration [Member] Concentration of credit risk related to the machinery and equipment manufacturing industry. Transportation Credit Risk Concentration [Member] Transportation Credit Risk Concentration [Member] Concentration of credit risk related to the transportation industry. Metals and Mining Credit Risk Concentration [Member] Metals and Mining Credit Risk Concentration [Member] Concentration of credit risk related to the metals and mining industry. Insurance Credit Risk Concentration [Member] Insurance Credit Risk Concentration [Member] Concentration of credit risk related to the insurance industry. Other Credit Risk Concentration [Member] Other Credit Risk Concentration [Member] All other credit risk concentrations other than those already specified. Loans Held-For-Sale and Loans At Fair Value Credit Risk Concentration [Member] Loans Held-For-Sale and Loans At Fair Value Credit Risk Concentration [Member] Concentration of credit risk related to loans held-for-sale or loans at fair value. Receivables From Customers Credit Risk Concentration [Member] Receivables From Customers Credit Risk Concentration [Member] Concentration of credit risk related to receivables from customers (i.e., margin loans to prime and retail brokerage customers). Credit Exposure [Line Items] Concentration Risk [Line Items] Concentrations of Credit Exposure Concentrations of Credit Exposure Abstarct Concentrations of Credit Exposure. Concentration Risk, Credit Exposure Concentration Risk, Credit Risk, Financial Instruments, Credit Exposure The amount of credit exposure from on- and off-balance sheet financial instruments that make up the concentration. Total lending related commitments Credit Risk Concentrations supplemental information Credit Risk Concentrations Textuals Abstract Credit Risk Concentrations. Securitized Credit Card Receivables Securitized Credit Card Receivables Securitized Credit Card Receivables. Key economic assumptions used to determine the fair value of certain of the Firm's retained interests, other than MSRs [Abstract] Key Economic Assumptions Used to Determine Fair Value [Abstract] Key Economic Assumptions Used to Determine Fair Value [Abstract] JPMorgan Chase interests in securitized assets Retained Interest, Fair Value Disclosure Weighted-average life (in years) Weighted Average Life Of Securitized Assets Weighted Average Life Of Securitized Assets Weighted-average constant prepayment rate Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Other Than Servicing Assets or Liabilities, Impact of Other than 10 or 20 Percent Adverse Change in Prepayment Speed, Percent A specified percentage variance in the prepayment speed assumption in the determination of fair value of interests continued to be held other than servicing assets or servicing liabilities. Impact of 10% adverse change Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Other Than Servicing Assets Or Liabilities Impact Of 10 Percent Adverse Change In Prepayment Speed The hypothetical financial impact of a 10 percent adverse change of prepayment speed on the fair value of interests that continue to be held by the transferor (other than servicing assets or servicing liabilities) as of the balance sheet date. Impact of 20% adverse change Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Other Than Servicing Assets or Liabilities, Impact of 20 Percent Adverse Change in Prepayment Speed The hypothetical financial impact of a 20 percent adverse change of prepayment speed on the fair value of interests that continue to be held by the transfero (other than servicing assets or servicing liabilities) as of the balance sheet date. Weighted-average loss assumption Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Other Than Servicing Assets or Liabilities, Impact Other than 10 or 20 Percent Adverse Change in Expected Credit Loss, Percent A specified percentage variance in the expected credit losses assumption in the determination of fair value of interests continued to be held (other than servicing assets or servicing liabilities). Impact of 10% adverse change Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Other Than Servicing Assets or Liabilities, Impact of 10 Percent Adverse Change in Expected Credit Losses The hypothetical financial impact of a 10 percent adverse change of the expected credit losses on the fair value of interests that continue to be held by the transferor (other than servicing assets or servicing liabilities) as of the balance sheet date. Impact of 20% adverse change Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Other Than Servicing Assets or Liabilities, Impact of 20 Percent Adverse Change in Expected Credit Losses The hypothetical financial impact of a 20 percent adverse change of the expected credit losses on the fair value of interests that continue to be held by the transferor (other than servicing assets or servicing liabilities) as of the balance sheet date. Weighted-average discount rate Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Other Than Servicing Assets or Liabilities, Impact of Other than 10 or 20 Percent Adverse Change in Discount Rate, Percent A specified percentage variance in the discount rate assumption in the determination of fair value of interests continued to be held other than servicing assets or servicing liabilities. Impact of 10% adverse change Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Other Than Servicing Assets Or Liabilities Impact Of 10 Percent Adverse Change In Discount Rate The hypothetical financial impact of a 10 percent adverse change of the discount rate on the fair value of interests that continue to be held by the transferor (other than servicing assets or servicing liabilities) as of the balance sheet date. Impact of 20% adverse change Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Other Than Servicing Assets or Liabilities, Impact of 20 Percent Adverse Change in Discount Rate The hypothetical financial impact of a 20 percent adverse change of the discount rate on the fair value of interests that continue to be held by the transferor (other than servicing assets or servicing liabilities) as of the balance sheet date. Changes In Fair Value Based On Variation In Assumptions Limit First Changes In Fair Value Based On Variation In Assumptions Limit First Changes in fair value based on variation in assumptions limit first. Changes In Fair Value Based On Variation In Assumptions Limit Second Changes In Fair Value Based On Variation In Assumptions Limit Second Changes in fair value based on variation in assumptions limit second. Home Equity Loan Delinquencies [Table] Home Equity Loan Delinquencies [Table] Schedule showing delinquency statistics for junior lien home equity loans. Home Equity Junior Lien [Member] Purchased Credit-Impaired Home Equity Junior Liens [Member] Purchased Credit-Impaired Home Equity Junior Liens [Member] Class of financing receivable related to home equity loan junior liens with evidence of deterioration of credit quality since origination that were acquired by completion of a transfer for which it is probable, at acquisition, that the investor will be unable to collect all contractually required payments receivable. Home Equity, By Product Type [Axis] Home Equity, By Product Type [Axis] Indicates the type of home equity product. Home Equity, by Product Type [Domain] Home Equity, by Product Type [Domain] Types of home equity products. Home Equity Lines of Credit [Member] Home Equity [Member] Home Equity Loans [Member] Home Equity Loans, Excluding Lines of Credit [Member] Home equity loans, excluding lines of credit, which are generally fixed-rate, closed-end, amortizing loans. Home Equity Line of Credit, By Amortization Status [Axis] Home Equity Line of Credit, By Amortization Status [Axis] Indicates whether a home equity line of credit is currently within (a) the revolving period or (b) the required amortization period. Home Equity Line of Credit, Amortization Status [Domain] Home Equity Line of Credit, Amortization Status [Domain] The amortization status of a home equity line of credit. Within the Revolving Period [Member] Home Equity Line of Credit, Amortization Status, Revolving Period [Member] Indicates that a home equity line of credit is currently within its revolving period. Within the Required Amortization Period [Member] Home Equity Line of Credit, Amortization Status, Amortization Period [Member] Indicates that a home equity line of credit is currently within its amortization period. Days Past Due, 30 to 89 [Member] Days Past Due, 30 to 89 [Member] Retained loans that are 30-89 days past due. Days Past Due 90 to 149 [Member] Days Past Due 90 to 149 [Member] Retained loans that are 90-149 days past due. Days Past Due 150 Or More [Member] Consumer Loans Excluding Credit Card, Junior Lien Delinquencies [Line Items] Consumer Loans Excluding Credit Card, Junior Lien Delinquencies [Line Items] Consumer Loans Excluding Credit Card, Junior Lien Delinquencies [Line Items] Approximate percentage of the PCI home equity portfolio consisting of senior lien loans Financing Receivables, Senior Liens, Percentage The percentage of the financing receivables that consists of senior liens. Home Equity Line of Credit, Open-ended Revolving Period In general, the period of time that home equity lines of credit are open-ended revolving loans. Home Equity Line of Credit, Amortization Period After conversion from a revolving loan, the home equity line of credit new loan amortization period. Schedule of Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities [Table] Schedule of Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets [Table] Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption by Type [Axis] Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Adverse Change in Assumption, by Type [Axis] Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items] Key economic assumptions used to determine the fair value of the Firm's Mortgage Servicing Rights (MSRs) [Abstract] Mortgage Servicing Rights Msrs Fair Value Key Economic Assumptions Used To Determine Abstract Mortgage Servicing Rights Msrs Fair Value Key Economic Assumptions Used To Determine. Weighted-average prepayment speed assumption (CPR) Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of Other than 10 or 20 Percent Adverse Change in Prepayment Speed, Percent Impact on fair value of 10% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 10 Percent Adverse Change in Prepayment Speed Impact on fair value of 20% adverse change Sensitivity Analysis of Fair Value, Transferor's Interests in Transferred Financial Assets, Impact of 20 Percent Adverse Change in Prepayment Speed Goodwill increase (decrease) during period Weighted average option adjusted spread Weighted-average option adjusted spread. Impact on fair value of 100 basis points adverse change Weighted Average Option Adjusted Spread Impact On Fair Value Of Hundred Basis Points Adverse Change Impact on fair value of 100 basis points adverse change in the weighted-average option adjusted spread. Impact on fair value of 200 basis points adverse change Weighted Average Option Adjusted Spread, Impact On Fair Value Of Two Hundred Basis Points Adverse Change Impact on fair value of 200 basis points adverse change in the weighted-average option adjusted spread. DERIVATIVE INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Variable Interest Entities [Abstract] Variable Interest Entities. VARIABLE INTEREST ENTITIES Variable Interest Entities And Transfers Of Financial Assets [Text Block] Disclosure of variable interest entities (VIE), including, but not limited to the nature, purpose, size, and activities of the VIE, the carrying amount and classification of consolidated assets that are collateral for the VIE's obligations, lack of recourse if creditors (or beneficial interest holders) of a consolidated VIE have no recourse to the general credit of the primary beneficiary. An enterprise that holds a significant variable interest in a VIE but is not the primary beneficiary may disclose the nature of its involvement with the VIE and when that involvement began, the nature, purpose, size, and activities of the VIE and the enterprise's maximum exposure to loss as a result of its involvement with the VIE. Also provides the disclosures pertaining to a transferor's continuing involvement in financial assets that it has transferred in a securitization or asset-backed financing arrangement, the nature of any restrictions on assets reported by an entity in its statement of financial position that relate to a transferred financial asset (including the carrying amounts of such assets), and (for securitization or asset-backed financing arrangements accounted for as sales) when a transferor has continuing involvement with the transferred financial assets, how the transfer of financial assets affects an entity's financial position, financial performance, and cash flows. OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsIntendsToSellNet OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsIntendsToSellNet The amount of other than temporary impairment losses on investments when the entity intends to sell the securities. Gain (Loss) on Sale of Debt Investments Gain (Loss) on Sale of Debt Investments Credit losses in securities gains and losses [Abstract] Credit Losses In Securities Gains And Losses [Abstract] Credit Losses In Securities Gains And Losses Abstract. Other-than-temporary impairment, [Abstract] Debt securities not intend to sell that have credit losses Abstract Debt securities the Firm does not intend to sell that have credit losses Abstract. Total other-than-temporary impairment losses Other than Temporary Impairment Losses, Investments Losses recorded in/(reclassified from) other comprehensive income Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Income (Loss), before Tax, Including Portion Attributable to Noncontrolling Interest Credit losses recognized in income Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net JPMorgan Chase & Co Nonconsolidated Municipal Bond Vehicles Nonconsolidated Municipal Bond Vehicles [Member] Aggregated disclosure of Municipal Bond Vehicles, which constitute a group of similar Variable Interest Entities (VIE) which are not included in the consolidated financial statements of the entity because the entity does not have a controlling financial interest (not the primary beneficiary). Internal Credit Rating [Member] Investment Grade AAA to AAA- Internal Credit Rating Investment Grade One [Member] Internal credit-rating that could be used to describe the current status of the payment and performance risk of credit derivatives and guarantee obligations that connote AAA to AAA- investment grade, S&P equivalent. Investment Grade AAplus to AA- Internal Credit Rating Investment Grade Two Member Internal credit-rating that could be used to describe the current status of the payment and performance risk of credit derivatives and guarantee obligations that connote AA+ to AA- S&P equivalent investment grade. Investment Grade Aplus to A- Internal Credit Rating Investment Grade Three Member Internal credit-rating that could be used to describe the current status of the payment and performance risk of credit derivatives and guarantee obligations that connote A+ to A- S&P equivalent investment grade. Investment Grade BBB to BBB- Internal Credit Rating Investment Grade Four Member Internal credit-rating that could be used to describe the current status of the payment and performance risk of credit derivatives and guarantee obligations that connote BBB to BBB- S&P equivalent investment grade. Noninvestment-grade External Credit Rating, Non Investment Grade [Member] Firm's exposure to nonconsolidated municipal bond VIEs [Abstract] Firms Exposure To Nonconsolidated Municipal Bond Variable Interest Entities Abstract Firm's exposure to nonconsolidated municipal bond VIEs. Fair value of non-consolidated assets held by VIEs Liquidity facilities provided by Firm serving as liquidity provider Line of Credit Facility, Remaining Borrowing Capacity Excess/ (deficit) Excess (Deficit) of Assets Over Available Liquidity Represents the excess/(deficit) of the fair values of assets available to repay the liquidity facilities, if drawn. Maximum exposure Weighted average expected life of assets (years) Variable Interest Entity Weighted Average Expected Life Of Assets Unconsolidated V I E Variable Interest Entity, Weighted-Average Expected Life of Assets, Unconsolidated VIE. Putable floating-rate certificates of municipal bond vehicles held Putable floating-rate certificates of municipal bond vehicles Putable floating-rate certificates of municipal bond vehicles held by the entity. Putable Floating Rate Certificates of Municipal Bond Vehicles Held During Period, Percent Putable Floating Rate Certificates of Municipal Bond Vehicles Held During Period, Percent Largest percentage of the municpal bond vehicles' outstanding putable floating-rate certificates held by the entity at any time during the period. Schedule of Accounts Payable and Other Liabilities [Table] Schedule of Accounts Payable and Other Liabilities [Table] Accounts Payable and Other Liabilities [Line Items] Accounts Payable and Other Liabilities [Line Items] Components of Accounts Payable and Other Liabilities Components of Accounts Payable and Other Liabilities (Numeric) [Abstract] Components of accounts payable and other liabilities. Brokerage payables Brokerage payables Aggregate amounts payable to customers representing amounts due on customers' cash and margin transactions; broker-dealers and clearing organizations include amounts payable for securities failed to receive, amounts payable to clearing organizations on open transactions, and floor-brokerage payables. In addition, the net payable arising from unsettled trades would be reflected in those captions. A broker-dealer that purchases securities, either for its own account or for a customer's account, but does not receive the securities on the settlement date records the amount of money representing the purchase price of the securities, including any accrued interest, as a liability to the selling broker-dealer. This liability is paid when the securities are received by the purchasing broker-dealer. Accounts payable and other liabilities Total Credit Quality of Residential Real Estate - PCI Loans, by Class, by Geographic Region [Table] Credit Quality of Residential Real Estate PCI Loans by Class by Geographic Region [Table] Credit Quality of Residential Real Estate - PCI Loans, by Class, by Geographic Region [Table] California [Member] Loans outstanding in California. New York [Member] Loans outstanding in New York. Florida [Member] Loans outstanding in Florida. Illinois [Member] Loans outstanding in Illinois. Texas [Member] Loans outstanding in Texas. New Jersey [Member] Loans outstanding in New Jersey. Arizona [Member] Loans outstanding in Arizona. Washington [Member] Loans outstanding in Washington. Ohio [Member] Loans outstanding in Ohio. Michigan [Member] Loans outstanding in Michigan. All Other States [Member] Loans outstanding in all other states, excluding California, New York, Texas, Florida, Illinois, Ohio, New Jersey, Michigan, Arizona, and Washington. Residential Real Estate PCI Loans by Class by Geographic Region [Line Items] Residential RealEstate - PCI Loans, by Class, by Geographic Region [Line Items] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table] Schedule of Effective Income Tax Rate Reconciliation [Table] Effective income tax rate reconciliation Effective Income Tax Rate Reconciliation [Line Items] Effective Income Tax Rate Reconciliation [Line Items] Reconciliation of the applicable statutory U.S. income tax rate to the effective tax rate Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation [Abstract] Statutory U.S. federal tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate Increase/(decrease) in tax rate resulting from: Increase Decrease in Tax Rate Resulting From [Abstract] Increase Decrease in Tax Rate Resulting From [Abstract] Increase/(decrease) in tax rate resulting from U.S. state and local income taxes, net of U.S. federal income tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes Increase/(decrease) in tax rate resulting from tax-exempt income Effective Income Tax Rate Reconciliation, Tax Exempt Income Increase/(decrease) in tax rate resulting from Non-U.S. subsidiary earnings Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential Increase/(decrease) in tax rate resulting from business tax credits Effective Income Tax Rate Reconciliation, Tax Credits, Other Bear Stearns equity losses Effective Income Tax Rate Reconciliation Equity In Earnings Losses Of Acquiree Business Combination The portion of the difference between the effective income tax rate and the domestic federal statutory income tax rate attributable to the equity in earnings (losses) of an acquiree following a step acquisition in a business combination that the acquiror cannot include (deduct) in determining income tax expense under enacted tax laws. Other, net Effective Income Tax Rate Reconciliation, Other Adjustments Effective tax rate Effective Income Tax Rate, Continuing Operations Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Risk Management Activities [Member] Risk Management Activities [Member] Risk Management Activities Member. Hedging Designation [Axis] Hedging Designation [Domain] Not Designated as Hedging Instrument [Member] Commodity Risk management derivatives gains and losses [Abstract] Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] Income statement impact Derivative Instruments, Gain (Loss) Recognized in Income, Net Assets and liabilities measured at fair value on a recurring basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Changes in level 3 recurring fair value measurements Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Text Block] This element represents, for the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs). Credit adjustments Credit Related Adjustments On Derivative Assets And Liabilties And Debt Instruments [Text Block] This element represents the credit risk fair value adjustments, excluding the effect of any hedging activity, that is included as a part of the fair value of derivative assets and liabilties, and debt instruments. Impact of credit adjustments on earnings Credit Risk Adjustments On Derivative Assets And Liabilties And Debt Instruments Gains Losses Text Block This item represents the estimated amount of gains and losses from fair value changes included in earnings that are attributable to changes in the instrument-specific credit risk of derivatives assets and liabilities, and debt instruments with fair values that have been significantly affected during the reporting period by changes in the instrument-specific credit risk. Carrying value and estimated fair value of financial assets and liabilities Fair Value, by Balance Sheet Grouping [Table Text Block] The Carrying value and estimated fair value of wholesale lending- related commitments Carrying Value And Estimated Fair Value Of Wholesale Lending Related Commitments [Text Block] This element represents the carrying value and estimated fair value of wholesale lending- related commitments. Trading assets and liabilities average balances Trading Assets and Liabilities, Average Balances [Table Text Block] This element holds a table containing the average balance of trading assets and liabilities, including derivative receivables/payables and debt and equity instruments. Securities Financing Transactions, Balance Sheet [Abstract] Securities Financing Transaction [Table] Securities Financing Transaction [Table] Securities Financing Transaction [Axis] Securities Financing Transaction [Axis] Securities Financing Transaction, Type [Domain] Securities Financing Transaction, Type [Domain] Securities Financing Transaction [Line Items] Securities Financing Transaction [Line Items] Components of collateralized financings [Abstract] Collateralized Financings [Abstract] Securities purchased under resale agreements Securities Purchased under Agreements to Resell Securities borrowed, at fair value Securities sold under repurchase agreements Securities Sold under Agreements to Repurchase Securities loaned Securities Loaned Securities financing activities (Numeric) [Abstract] Securities Financing Transactions [Abstract] Federal funds sold and securities purchased under resale agreements, at fair value Federal funds purchased and securities loaned or sold under repurchase agreements, at fair value Resale and repurchase agreements that have been netted Carrying Value of Resale Agreements and Repurchase Agreements That Have Been Netted This is the carrying value as of the balance sheet date of securities resale and securities repurchase ageements with the same counterpay that have been netted. Statement of Cash Flows [Abstract] Operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by/(used in) operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Provision for credit losses Provision For Loan Lease And Other Losses Excluding Accounting Policy Conformity The sum of the periodic provision charged to operations, excluding accounting policy conformity adjustment, based on an assessment of the uncollectibility of the loan, lease or other credit losses, to reduce these accounts to the amount that approximates their net realizable value. Depreciation and amortization Depreciation, Amortization and Accretion, Net Deferred tax expense/(benefit) Deferred Income Tax Expense (Benefit) Investment securities gains Gain (Loss) on Investments Stock-based compensation Originations and purchases of loans held-for-sale Payments for Origination and Purchases of Loans Held-for-sale Proceeds from sales, securitizations and paydowns of loans held-for-sale Proceeds From Sales Securitizations And Paydowns Of Loans Held For Sale The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through securitization. Net change in trading assets Increase (Decrease) in Financial Instruments Used in Operating Activities Net change in securities borrowed Increase (Decrease) in Cash Collateral for Borrowed Securities Net change in accrued interest and accounts receivable Increase Decrease In Accrued Interests And Accounts Receivable The net change during the reporting period in accrued interest income and accounts receivable. Net change in other assets Increase (Decrease) in Prepaid Expense and Other Assets Net change in trading liabilities Increase (Decrease) in Trading Liabilities Net change in accounts payable and other liabilities Increase Decrease In Accounts Payable And Other Liabilities The net change during the reporting period in accounts payable, accrued expenses and other liabilities. Other operating adjustments Other Operating Activities, Cash Flow Statement Net cash provided by/(used in) operating activities Net Cash Provided by (Used in) Operating Activities Investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Net change in deposits with banks Proceeds from (Payments for) in Interest-bearing Deposits in Banks Net change in federal funds sold and securities purchased under resale agreements Proceeds from (Payments for) Federal Funds Sold and Securities Purchased under Agreements to Resell, Net Held-to-maturity securities: Proceeds from Sale and Maturity of Held-to-maturity Securities [Abstract] Proceeds Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Available-for-sale securities: Proceeds from Sale of Available-for-sale Securities [Abstract] Proceeds from maturities Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from sales Proceeds from Sale of Available-for-sale Securities Purchases Payments to Acquire Available-for-sale Securities Proceeds from sales and securitizations of loans held-for-investment Proceeds from Sale of Loans and Leases Held-for-investment Other changes in loans, net Payments for (Proceeds from) Loans and Leases Net cash received from/(used in) business acquisitions or dispositions Payments for (Proceeds from) Businesses and Interest in Affiliates Net maturities of asset-backed commercial paper guaranteed by the FRBB Increase Decrease In Asset Backed Commercial Paper The net cash inflow (outflow) for the net change in the beginning and end of period of asset-backed commercial paper guaranteed by the Federal Reserve Bank. All other investing activities, net Payments for (Proceeds from) Other Investing Activities Net cash (used in)/provided by investing activities Net Cash Provided by (Used in) Investing Activities Financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Net change in deposits Increase (Decrease) in Deposits Net change in federal funds purchased and securities loaned or sold under repurchase agreements Increase (Decrease) in Federal Funds Purchased and Securities Sold under Agreements to Repurchase, Net Net change in commercial paper and other borrowed funds Proceeds from (Repayments of) Other Debt Net change in beneficial interests issued by consolidated variable interest entities Increase Decrease in Beneficial Interests Issued by Consolidated Variable Interest Entities Beneficial interests issued by consolidated variable interest entities. Proceeds from long-term borrowings and trust preferred capital debt securities Proceeds from Issuance of Long-term Debt and Capital Securities, Net Payments of long-term borrowings and trust preferred capital debt securities Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities Excess tax benefits related to stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Redemption of preferred stock issued to the U.S. Treasury Payments For Repurchase Of Redeemable Preferred Stock Issued To The Us Treasury The cash outflow for reacquisition of callable preferred stock issued to the U.S. Treasury. Redemption of other preferred stock Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Treasury stock and warrants purchased Payments for Repurchase of Common Stock and Warrants Payments for Repurchase of Common Stock and Warrants combines payments that are reported under the us_gaap elements PaymentsForRepurchaseOfCommonStock and PaymentsForRepurchaseofWarrants. Dividends paid Payments of Dividends All other financing activities, net Proceeds from (Payments for) Other Financing Activities Net cash provided by/(used in) financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rate changes on cash and due from banks Effect of Exchange Rate on Cash and Cash Equivalents Net increase/(decrease) in cash and due from banks Cash and Cash Equivalents, Period Increase (Decrease) Cash and due from banks at the beginning of the period Cash and due from banks at the end of the period Cash interest paid Interest Paid Cash income taxes paid, net Income Taxes Paid GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill and other intangible assets [Text Block] Discloses the aggregate amount of goodwill and a description of intangible assets, may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain or loss on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. This element may be used as a single block of text to include the entire intangible asset disclosure including data and tables. Other intangible assets: Other Intangible Assets Abstract Other intangible assets. Common shares issued (newly issued or distributed from treasury) OPEB before Medicare Part D subsidy [Member] Other Postretirement Benefit Plans, Excluding Prescription Drug Benefit [Member] A plan, excluding prescription drug benefit plans, that defines postretirement benefits in terms of monetary amounts. Any postretirement benefit plan that is not a defined contribution postretirement plan is a defined benefit postretirement plan. Medicare Part D Subsidy [Member] Other Postretirement Benefit Plans, Including Prescription Drug Benefit [Member] A prescription drug benefit plan (including Medicare Part D-type), that defines postretirement benefits in terms of monetary amounts. Any postretirement benefit plan that is not a defined contribution postretirement plan is a defined benefit postretirement plan. Estimated future benefit payments Defined Benefit Plan, Estimated Future Benefit Payments [Abstract] Estimated future benefit payments, Defined benefit plans, 2012 Defined Benefit Plan, Expected Future Benefit Payments in Year One Estimated future benefit payments, Defined benefit plans, 2013 Defined Benefit Plan, Expected Future Benefit Payments in Year Two Estimated future benefit payments, Defined benefit plans, 2014 Defined Benefit Plan, Expected Future Benefit Payments in Year Three Estimated future benefit payments, Defined benefit plans, 2015 Defined Benefit Plan, Expected Future Benefit Payments in Year Four Estimated future benefit payments, Defined benefit plans, 2016 Defined Benefit Plan, Expected Future Benefit Payments in Year Five Estimated future benefit payments, Defined benefit plans, Years 2017-2021 Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter Changes in fair value under the fair value option election Fair Value, Option, Quantitative Disclosures [Table Text Block] Difference between aggregate fair value and aggregate remaining contractual principal balance outstanding Difference Between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding [Table Text Block] Difference Between Aggregate Fair Value and Aggregate Remaining Contractual Principal Balance Outstanding [Table Text Block] Risks and Uncertainties [Abstract] Credit risk concentrations Concentration Risk Disclosure [Text Block] Securities [Abstract] Securities. Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Schedule of Credit Derivatives [Table] Schedule of Credit Derivatives [Table] Credit Derivatives by Contract Type [Axis] Credit Derivatives by Contract Type [Axis] Credit Derivatives Contract Type [Domain] Credit Derivatives Contract Type [Domain] Other [Member] Other [Member] Total Credit Derivatives [Member] Total Credit Derivatives [Member] Total freestanding credit derivatives. Hybrid Instrument [Member] Hybrid Instrument [Member] Credit Default Swap [Member] Credit Derivatives by Underlying Asset Class [Axis] Credit Derivatives by Underlying Asset Class [Axis] Investment-grade External Credit Rating, Investment Grade [Member] Credit Derivatives [Line Items] Credit Derivatives [Line Items] Protection sold credit derivatives and credit related notes ratings/maturity profile Protection sold credit derivatives and credit related notes Abstract Protection sold credit derivatives and credit related notes ratings(a)/maturity profile. Protection sold credit derivatives and credit related notes ratings/maturity profile - less than one year Protection Sold Credit Derivatives And Credit Related Notes Ratings Less Than One Year Protection sold on credit derivatives and credit- related notes; ratings/maturity profile for maturities less than one year. Protection sold credit derivatives and credit-related notes ratings/maturity profile - from one to five years Protection Sold Credit Derivatives And Credit Related Notes Ratings From One To Five Years Protection sold on credit derivatives and credit-related notes; ratings/maturity profile for maturities from one to five years. Protection sold credit derivatives and credit-related notes ratings/maturity profile - more than five years Protection Sold Credit Derivatives And Credit Related Notes More Than Five Years Protection sold on credit derivatives and credit-related notes; ratings/maturity profile for maturities for more than five years. Total notional amount Credit Derivative, Maximum Exposure, Undiscounted Fair value Credit Derivative, Current Fair Value Credit Derivatives, Purchased Credit Protection Credit Derivatives, Purchased Credit Protection Describes, in the context of the estimate of potential recoveries, any purchased credit protection with identical underlying(s). Net Protection Sold Purchased Net Protection Sold Purchased The amount of credit protection sold net of the amount of credit protection purchased with identical underlyings. This does not take into account the fair value of the reference obligation at the time of settlement, which would generally reduce the amount the seller of protection pays to the buy of protection in determining settlement value. Credit Derivative Other Protection Purchased Credit Derivative Other Protection Purchased The amount of single-name and index credit default swap protection purchased (excludes protection purchased with identical underlyings). Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Appreciation/(depreciation) Appreciation (Depreciation), Fair Value Disclosure [Member] Represents the excess (deficit) of estimated fair value over the carrying value of financial instruments. Estimate of Fair Value Estimate of Fair Value, Fair Value Disclosure [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Carrying value and estimated fair value of financial assets and liabilities [Abstract] Carrying Value And Estimated Fair Value Of Financial Assets And Liabilities Abstract Carrying Value And Estimated Fair Value Of Financial Assets And Liabilities. Financial assets Financial assets Abstract Financial assets Abstract. Assets for which fair value approximates carrying value Assets for which fair value approximates carrying value Assets for which fair value approximates carrying value. Accrued interest and accounts receivable Accrued Interest And Accounts Receivable At Fair Value This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis. Federal funds sold and securities purchased under resale agreements (included $24.2 and $20.3 at fair value) Securities borrowed (included $15.3 and $14.0 at fair value) Securities (included $364.8 and $316.3 at fair value) Securities at Fair Value This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, and certain preferred stock. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. Loans (included $2.1 and $2.0 at fair value) Mortgage servicing rights at fair value Other (included $16.5 and $18.2 at fair value) Financial liabilities Financial Liabilities Abstract Financial liabilities Abstract. Deposits (included $4.9 and $4.4 at fair value) Federal funds purchased and securities loaned or sold under repurchase agreements (included $9.5 and $4.1 at fair value) Commercial paper Commercial Paper, Fair Value Disclosure Commercial Paper, Fair Value Disclosure Other borrowed funds (included $9.6 and $9.9 at fair value) Other Borrowed Funds Carried At Fair Value The portion of other borrowed funds that is carried at fair value. Accounts payable and other liabilities (included $0.1 and $0.2 at fair value) Beneficial interests issued by consolidated VIEs (included $1.3 and $1.5 at fair value) Long-term debt and junior subordinated deferrable interest debentures (included $34.7 and $38.8 at fair value) Long-term advances from Federal Home Loan Banks Long-term Federal Home Loan Bank Advances Wholesale lending related commitments Wholesale lending related commitments This item represents wholesale lending related commitments for which it is not practicable to estimate fair value. Trading assets and liabilities average balances Abstract Trading assets and liabilities average balances. Trading assets - debt and equity instruments Trading Assets, Average Balances, Debt and Equity Instruments This element represents average trading assets - debt and equity instruments. Trading assets - derivative receivables Trading Assets, Average Balances, Derivative Receivables This element represents average trading assets - derivative receivables. Trading liabilities - debt and equity instruments Trading Liabilities, Average Balances, Debt and Equity Instruments This element represents average trading liabilities - debt and equity instruments. Trading liabilities - derivative payables Trading Liabilities, Average Balances, Derivative Payables This element represents average trading liabilities - derivative payables. Estimated pretax amounts that will be amortized from AOCI into net periodic benefit cost Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year [Abstract] Net loss Defined Benefit Plan, Amortization of Net Gains (Losses) Prior service cost/(credit) Defined Benefit Plan, Amortization of Net Prior Service Cost (Credit) Total Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivatives, Fair Value, by Balance Sheet Location [Axis] Balance Sheet Location [Domain] Trading assets Other borrowed funds Other Borrowed Funds Line Item [Member] Identifies the Other Borrowed Funds line item on the statement of financial position. Designated as Hedging Instrument [Member] Derivatives, Fair Value, by Derivative Instrument Risk [Axis] Foreign currency-denominated debt [Member] Foreign Currency Denominated Debt [Member] Foreign currency denominated debt. Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Impact of derivatives on the Consolidated Balance Sheets [Abstract] Free standing derivatives Abstract Free standing derivatives. Fair value related to derivative receivables Derivative Asset, Fair Value, Gross Asset Derivative receivables netting adjustment Derivative Receivables Netting Adjustment, Total The total amount of netting of derivative receivables combining the offsetting netting adjustment with the related cash collateral received when a legally enforceable master netting agreement exists. Fair value related to derivative payables Derivative Liability, Fair Value, Gross Liability Derivative payables netting adjustment Derivative Payables Netting Adjustment Total The total amount of netting of derivative payables combining the offsetting netting adjustment with the related cash collateral received when a legally enforceable master netting agreement exists. Carrying value of derivative trading assets Carrying value of derivative trading liabilities Derivatives Excluded From Trading Assets and Trading Liabilities [Abstract] Derivatives Excluded From Trading Assets and Trading Liabilities [Abstract] Foreign currency-denominated debt Net Investment Hedge Derivative Liabilities At Fair Value, Excluded From Derivative Fair Value of Derivative Net Net Investment Hedge Derivative Liabilities At Fair Value, Excluded From Derivative Fair Value of Derivative Net Commodity derivatives used as fair value hedging instruments Fair Value Hedging Instrument Related To Commodity Derivatives Fair value hedging instrument related to commodity derivatives. Prime and Alt-A [Member] Gross unrealized losses Available-for-sale Securities, Gross Unrealized Gain (Loss) [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses Available-for-sale Securities, with gross unrealized losses, 12 Months or Longer, Gross unrealized losses Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Percentage Range of Fair Value to Amortized Cost Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Percentage Range of Fair Value to Amortized Cost This item represents the percentage range that fair value is within amortized cost for the security that was considered as one of the potential factors in reaching a conclusion that the available-for-sale investments are not other-than-temporarily impaired. Other-than-temporary impairment losses Other than Temporary Impairment Losses, Investments, Available-for-sale Securities Available-for-Sale Securities, By Amortized Cost, Rated Below Investment Grade, Percentage of Portfolio Available-For-Sale Securities, By Amortized Cost, Rated Below Investment Grade, Percentage of Portfolio The percentage of available-for-Sale securities, by amortized cost, that are rated below investment grade. Available-For-Sale Securities, Qualitative Disclosure, Percentage Other-than-temporarily Impaired Available-For-Sale Securities, Qualitative Disclosure, Percentage Other-than-temporarily Impaired This item contains disclosure of the percentage of investment positions in the available-for-sale investments determined to have been other-than-temporarily impaired. Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Default Rate Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Default Rate Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Loss Severity Rate Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Loan to Collateral Value Fair Value Inputs, Prepayment Rate Fair Value Inputs, Prepayment Rate Rate at which loans or a loan portfolio are expected to prepay principal balances, used as an input to measure fair value. Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Recovery Rate Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Recovery Rate This item represents the recovery rate of the underlying assets in the security that were considered as one of the potential factors in reaching a conclusion that the available-for-sale investments are not other-than-temporarily impaired. Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Loss Severity From Debt Securities Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Debt Security Loss Severity This item represents the loss severity from debt securities of the underlying assets in the security, represented as a percentage, which was considered as one of the potential factors in reaching a conclusion that the available-for-sale investments are not other-than-temporarily impaired. Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Expected Lifetime Losses Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Expected Lifetime Losses The expected lifetime rate at which principal will not be repaid on available-for-sale securities. This is used as a key input and assumption in measuring the potential credit losses of available-for-sale securities as of the date of the latest statement of financial position presented. Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Constant Prepayment Rate Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Constant Prepayment Rate This item represents the constant prepayment rate of the underlying assets in the security that were considered as one of the potential factors in reaching a conclusion that the available-for-sale investments are not other-than-temporarily impaired. Collateral default rates after the current period Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Other, Projected Default Rate This item represents the default rate projected for future periods on the underlying assets in the security that were considered as one of the potential factors in reaching a conclusion that the available-for-sale investments are not other-than-temporarily impaired. Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Months Between Default and Loss This item represents the number of months after default that losses on collateral are expected to occur, which was considered as one of the potential factors in reaching a conclusion that the available-for-sale investments are not other-than-temporarily impaired. Revenue Investment banking fees Principal transactions Lending-and deposit-related fees Lending And Deposit Related Fees Combination of: 1) Includes amounts charged depositors for: (A) maintenance of their accounts (maintenance charges); (B) failure to maintain specified minimum balances on account; (C) exceeding the number of checks or transactions allowed to be processed in a given period; (D) checks drawn on no minimum balance deposit accounts; (E) withdrawals from nontransaction deposit accounts; (F) closing savings accounts before a specified minimum period of time has elapsed; (G) accounts which have remained inactive for extended periods of time or which have become dormant; (H) checks drawn against insufficient funds that the bank assesses regardless of whether it decides to pay, return or hold the check; (I) issuing stop payment orders; (J) certifying checks; and (K) accumulating or disbursing funds deposited in IRAs or Keogh Plan accounts when not handled by the bank's trust department. This item does not include penalties assessed on the early withdrawal of time deposits. 2) This item represents the portion of monthly guaranty fees collected representing the interest imputed and recognized under the prospective interest method on the present value of the contractually stipulated guarantee payments at inception of the contract. 3) Income from servicing real estate mortgages, credit cards, and other financial assets held by others. Also include any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans. May also be net of any related impairment of fair value of capitalized service costs. 4) Other lending-related fees. Asset management, administration and commissions Securities gains Available-for-sale Securities, Gross Realized Gain (Loss) Mortgage fees and related income Mortgage Fees And Related Income Combination of: 1) The noninterest income derived from mortgage banking activities (fees and commissions), including fees earned from servicing third-party assets. 2) The adjustment to the carrying value of the rights retained or purchased to service mortgages. These adjustments are made when the estimate of the fair value is changed. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method. Credit card income Credit Card Income Income earned from credit card services including annual, interchange and card servicing fees. This item excludes late, overlimit, interest income earned on credit card balances and transactions. Other income Noninterest Income, Other Noninterest revenue Interest income Interest expense Net interest income Interest Income (Expense), Net Noninterest expense Merger costs Income tax expense Income before extraordinary gain Income (Loss) from Operations before Extraordinary Items Extraordinary gain Extraordinary Item, Gain (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Net income Net income applicable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Per common share data - Basic earnings per share Earnings Per Share, Basic [Abstract] Income before extraordinary gain Income (Loss) from Operations before Extraordinary Items, Per Basic Share Net income Earnings Per Share, Basic Per common share data - Diluted earnings per share Earnings Per Share, Diluted [Abstract] Income before extraordinary gain Income (Loss) from Operations before Extraordinary Items, Per Diluted Share Net income Earnings Per Share, Diluted Weighted-average basic shares Weighted Average Number of Shares Outstanding, Basic Weighted-average diluted shares Weighted Average Number of Shares Outstanding, Diluted Cash dividends declared per common share Common Stock, Dividends, Per Share, Cash Paid Other-than-temporary impairment losses included in securities gains Other Than Temporary Impairment Losses [Abstract] Other Than Temporary Impairment Losses [Abstract] Total other-than-temporary impairment losses Total credit losses recognized in income Derivative [Table] Derivative [Table] Derivative, by Nature [Axis] Derivative, by Nature [Axis] Derivative, Name [Domain] Derivative, Name [Domain] Swap [Member] Swap [Member] Spot futures and forwards [Member] Spot futures and forwards [Member] Spot futures and forwards Member. Written options [Member] Written options [Member] A category that identifies written option contracts. Future and forwards [Member] Future And Forward Contracts Member (1) Forward contracts are negotiated between two parties to purchase and sell a specific quantity of a financial instrument, foreign currency, or commodity at a price specified at origination of the contract, with delivery and settlement at a specified future date. (2) Futures contracts are forward-based contracts to make or take delivery of a specified financial instrument, foreign currency, or commodity at a specified future date or during a specified period at as specified price or yield. Futures are standardized contracts traded on an organized exchange. Purchased options [Member] Options Held [Member] Cross-currency swaps [Member] Currency Swap [Member] Derivative [Line Items] Derivative [Line Items] Notional amount of derivative contracts outstanding [Abstract] Notional Amount of Derivatives, Total [Abstract] Total derivative notional amounts Notional Amount of Derivatives Interest Income and Interest Expense [Abstract] Interest Income and Interest Expense [Abstract] Weighted-average assumptions used to determine net periodic benefit costs Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] Defined benefit pension plans and OPEB plans Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Expected long-term rate of return on plan assets: Expected long term rate of return on plan assets Abstract Expected long-term rate of return on plan assets. Defined benefit pension plans and OPEB plans Rate of compensation increase Health care cost trend rate: Health care cost trend rate Abstract Health care cost trend rate. Assumed for next year Ultimate Year when rate will reach ultimate Defined Benefit Plan, Year that Rate Reaches Ultimate Trend Rate Allowance For Credit Losses (Tables) [Abstract] Allowance For Credit Losses. Allowance for credit losses and loans and lending-related commitments Financing Receivable Allowance For Loan Losses [Text Block] Schedule detailing information related to financing receivables and the activity in the allowance for loan losses account by portfolio segment. ble. Accumulated other comprehensive income/(loss) Accumulated Other Comprehensive Income Loss [Table Text Block] This table may include the following: 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Components of comprehensive income include: (1) foreign currency translation adjustments; (2) gains and losses on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (3) gains and losses on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (4) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (5) unrealized holding gains and losses on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (6) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (7) the net gain or loss and net prior service cost or credit for pension plans and other postretirement benefit plans. Changes of the components of accumulated other comprehensive income (loss) Before And After Tax Changes Of Components Of Accumulated Other Comprehensive Income Loss Tables [Text Block] Schedule which may include the following: 1) the gross amount before-tax, amount of income tax expense or benefit, and the after-tax amount allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Components of comprehensive income include: (1) foreign currency translation adjustments; (2) gains and losses on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (3) gains and losses on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (4) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (5) unrealized holding gains and losses on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (6) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (7) the net gain or loss and net prior service cost or credit for pension plans and other postretirement benefit plans. Schedule of Servicing Assets at Fair Value [Table] Schedule of Servicing Assets at Fair Value [Table] Mortgage Servicing Rights, Inputs and Assumptions Used To Determine Fair Value [Axis] Mortgage Servicing Rights, Inputs and Assumptions Used To Determine Fair Value [Axis] The impact of inputs and assumptions on the fair value of mortgage servicing rights. Mortgage Servicing Rights, Inputs and Assumptions Used To Determine Fair Value [Domain] Mortgage Servicing Rights, Inputs and Assumptions Used To Determine Fair Value [Domain] The impact of inputs and assumptions on the fair value of mortgage servicing rights. Option Adjusted Spread Assumption Used To Value Mortgage Servicing Rights [Member] Option Adjusted Spread Assumption Used To Value Mortgage Servicing Rights [Member] Option adjusted spread (OAS) used as an underlying assumption for the cash flow projections for mortgage servicing rights. Prepayment Model Used To Value Mortgage Servicing Rights [Member] Prepayment Model Used To Value Mortgage Servicing Rights [Member] Prepayment model used to determine the fair value of mortgage servicing rights. Servicing Assets at Fair Value by Types of Financial instrument [Axis] Servicing Assets at Fair Value by Types of Financial instrument [Axis] Servicing Assets at Fair Value [Line Items] Servicing Assets at Fair Value [Line Items] Mortgage servicing rights activity [Abstract] Mortgage Servicing Rights M S Rs Fair Value Roll Forward Mortgage Servicing Rights MSRs Fair Value Roll Forward. Fair value at the beginning of the period MSR activity Mortgage servicing rights activity Abstract Mortgage servicing rights activity Abstract. Originations of MSRs Servicing Asset at Fair Value, Additions, Originations The value of new servicing assets, subsequently measured at fair value, created during the current period through transfers of financial assets. Purchase of MSRs Servicing Asset at Fair Value, Additions, Purchases The value of new servicing assets, subsequently measured at fair value, acquired during the current period through purchases. Disposition of MSRs Servicing Asset at Fair Value, Disposals Changes in fair value due to modeled amortization Servicing Asset at Fair Value, Changes in Fair Value Resulting From Modeled Servicing Portfolio Runoff The net increase or decrease in fair value as a result of modeled servicing portfolio runoff used to calculate the fair value of servicing assets. Net additions and amortization Mortgage Servicing Rights Net Additions and Amortization The net additions and amortization of Mortgage Servicing Rights (MSRs). Changes in fair value due to market interest rates Servicing Asset at Fair Value, Changes in Fair Value Resulting From Changes in Market Interest Rates The net increase or decrease in fair value as a result of changes in market interest rates used to calculate the fair value of servicing assets. Other changes in valuation due to inputs and assumptions Servicing Asset at Fair Value, Other Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions The net increase or decrease in fair value as a result of other changes in the inputs, assumptions, or model used to calculate the fair value of servicing assets, representing the aggregate impact of other model input and assumption changes not otherwise specified. Total change in fair value of MSRs Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions Fair value at Dec 31 Change in unrealized gains/(losses) included in income related to MSRs held at March 31 Mortgage Servicing Rights M S Rs Change In Unrealized Gains Losses Included In Income Change in unrealized gains (losses) included in income related to MSRs. Contractual service fees, late fees and other ancillary fees included in income Mortgage Servicing Rights M S Rs Contractual Service Fees Late Fees And Other Ancillary Fees Included In Income Contractual service fees, late fees and other ancillary fees related to MSRs included in income. Third-party mortgage loans serviced at June 30 (in billions) Mortgage Loans Serviced, Third Party, At Period End Third party mortgage loans serviced at period end. Servicer advances, net at June 30 (in billions) Servicer Advances On Mortgage Loans Represents contractual amounts the Firm pays as the servicer to third parties for scheduled principal and interest to a trust, taxes, insurance, default related expenses, etc. The advances are recovered from borrower payments [upon reperformance] or future cash flows at the time of liquidation of the or sale of the collateral. MSR activity supplemental information Mortgage Servicing Rights Activity Supplemental Info Abstract [Abstract] Mortgage Servicing Rights Activity Supplemental Info Abstract [Abstract] Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Cost To Service Assumptions Servicing Asset At Fair Value Changes In Fair Value Resulting From Changes In Cost To Service Assumptions Servicing Asset At Fair Value, Changes In Fair Value Resulting From Changes In Cost to Service Assumptions. Commercial Real Estate, Fair Value Commercial Real Estate, Fair Value Fair value of commercial real estate at period end. Servicing Asset at Fair Value, Period Increase (Decrease) Servicing Asset at Fair Value, Period Increase (Decrease) Servicing Asset at Fair Value, Change in Option Adjusted Spread Assumptions Servicing Asset at Fair Value, Change in Option Adjusted Spread Assumptions The amount of increase or decrease in the option adjust spread (OAS) assumption used to calculate the fair value of servicing assets. Capital Regulatory Capital Requirements under Banking Regulations [Text Block] Investments in and Advances to Subsidiaries Investments in and Advances to Affiliates Categorization [Axis] Investments in and Advances to Subsidiaries Investments in and Advances to Affiliates Categorization [Domain] Parent company balance sheets Assets Deposits with banking subsidiaries Deposits With Banking Subsidiaries Interest-bearing deposits with banking subsidaries held for relatively short periods of time including, for example, certificates of deposits, which are presented separately from cash on the balance sheet. Trading assets Available-for-sale securities Advances To and Receviables From Subsidiaries, Bank and Bank Holding Companies Advances To Receivables From Subsidiaries Bank and Bank Holding Companies The amount of advances to, and receivables from, bank and bank holding company subsidaries. Includes (1) the amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership and (2) long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients. Advances To and Receviables From Subsidiaries, Nonbanking Companies Advances To Receivables From Subsidiaries Non banking Companies The amount of advances to, and receivables from, subsidiaries other than banks and bank holding companies. Includes (1) the amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership and (2) long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership. This does not include advances to clients. Investments in Subsidiaries, Bank and Bank Holding Companies Investments In Subsidiaries Bank and Bank Holding Companies Total investments in an entity in which the entity is controlled, directly or indirectly, by its parent. The usual condition for control is ownership of a majority (over 50%) of the outstanding voting stock. The power to control may also exist with a lesser percentage of ownership, for example, by contract, lease, agreement with other stockholders or by court decree. Subsidiaries that are required to be consolidated. Investments in Subsidiaries, Nonbanking Companies Investments in Subsidiaries Non banking Companies Total investments in entities, other than bank and bank holding companies, in which the entities are controlled, directly or indirectly, by the parent. The usual condition for control is ownership of a majority (over 50%) of the outstanding voting stock. The power to control may also exist with a lesser percentage of ownership, for example, by contract, lease, agreement with other stockholders or by court decree. Subsidiaries that are required to be consolidated. Goodwill and other intangibles Goodwill And Intangible Assets Net Sum of the carrying amounts of all intangible assets, including goodwill and Mortgage Servicing Rights (MSRs), as of the balance sheet date, net of accumulated amortization. Liabilities and stockholders equity Liabilities and Equity [Abstract] Borrowings from, and payable to, subsidiaries Due to Affiliate Other borrowed funds, primarily commercial paper Other Borrowings Accounts payable and other liabilities at fair value Long-term debt maturity, 2012 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months Long-term debt maturity, 2013 Long-term Debt, Maturities, Repayments of Principal in Year Two Long-term debt maturity, 2014 Long-term Debt, Maturities, Repayments of Principal in Year Three Long-term debt maturity, 2015 Long-term Debt, Maturities, Repayments of Principal in Year Four Long-term debt maturity, 2016 Long-term Debt, Maturities, Repayments of Principal in Year Five Loans and Leases Receivable, Allowance for Loan Losses Policy [Policy Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] RBS Sempra transaction RBS Sempra [Member] "RBS Sempra Commodities' global oil, global metals and European power and gas businesses acquired by JPMorgan Chase on July 1, 2010." Purchase of remaining interest in J.P. Morgan Cazenove Purchase of remaining interest in Highbridge Capital Management Business Acquisition [Line Items] Business Acquisition [Line Items] Net assets of of RBS Sempra Commodities' global oil, global metals and European power and gas businesses acquired by JPMorgan Chase Business Acquisition Net Assets Acquired The total net assets acquired in a business acquisition. Debt of RBS Sempra Commodities' global oil, global metals and European power and gas businesses acquired by JPMorgan Chase, which was immediately repaid Business Acquisition Debt Assumed The total debt assumed in a business acquisition. Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] Changes in benefit obligations and plan assets and funded status amounts Defined Benefit Plan Change In Benefit Obligation And Fair Value Of Plan Assets Text Block A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. Pretax pension and OPEB amounts recorded in AOCI Defined Benefit Plan Accumulated Other Comprehensive Income Before Tax Table Text Block The pretax total of net gain or loss, prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. Components of net periodic benefit costs reported in the Consolidated Statements of Income and other comprehensive income Schedule of Defined Benefit Plan, Net Periodic Benefit Cost [Table Text Block] Schedule showing the components of the amount of net periodic benefit cost for defined benefit plans for the period. Periodic benefit costs include the following components: service cost, interest cost, expected return on plan assets, gain or loss, prior service cost or credit, transition asset or obligation, and gain or loss due to settlements or curtailments). Estimated pretax amounts that will be amortized from AOCI into net periodic benefit cost Defined Benefit Plan Amounts That Will Be Amortized From Accumulated Other Comprehensive Income Loss In Next Fiscal Year Table Text Block Schedule shwoing the aggregate amount in accumulated other comprehensive income expected to be recognized as a component of net periodic benefit cost over the fiscal year that follows the most recent annual statement of financial position presented (including the net gain or loss, net prior service cost or credit, and net transition asset or obligation). Actual rate of return on plan assets Schedule Of Defined Benefit Plan Actual Return On Plan Assets Table Text Block Schedule showing the actual rate of return on plan assets during the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable. Weighted-average assumptions used to determine benefit obligations Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Table Text Block] Schedule showing the weighted-average assumptions used in calculating the defined benefit plan obligation. Weighted-average assumptions used to determine net periodic benefit costs Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Table Text Block] Schedule showing the weighted-average assumptions used in calculating the defined benefit plan net periodic benefit cost. Effect of a one-percentage-point change in the assumed health care cost trend rate on the Firm's total service and interest cost and accumulated postretirement benefit obligation Schedule Of Defined Benefit Plan Effect Of One Percentage Point Change In Assumed Health Care Cost Trend Rates Table Text Block Schedule showing the effect of a one-percentage-point change in the assumed health care cost trend rate on the Entity's total service and interest cost and accumulated postretirement benefit obligation. Weighted-average asset allocation of the fair values of total plan assets Defined Benefit Plan Actual Plan Asset Allocations Table Text Block Schedule showing the target and actual allocation percentage of the fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of total plan assets held as of the measurement date. Pension and OPEB plan assets and liabilities measured at fair value Defined Benefit Plan Fair Value Of Plan Assets And Liabilities Table Text Block Schedule showing the disclosures related to the fair value of defined benefit plan assets and liabilities. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). Changes in level 3 fair value measurements using significant unobservable inputs Defined Benefit Plan Change In Fair Value Of Plan Assets And Liabilities Inputs Level 3 Table Text Block Schedule showing, for the fair value measurement of defined benefit plan assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized; (2) purchases, sales, issuances, and settlements (net); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs). Estimated future benefit payments Schedule of Defined Benefit Plan, Estimated Future Benefit Payments [Table Text Block] Schedule showing the benefits (as of the date of the latest statement of financial position presented), expected to be paid in each of the next five years, and in the aggregate for the next succeeding five years. Parent Company Condensed Financial Information of Parent Company Only Disclosure [Text Block] Goodwill and Other Intangible Assets (Tables) [Abstract] Goodwill And Other Intangible Assets Tables Abstract. Goodwill and other intangible assets Schedule of Intangible Assets and Goodwill [Table Text Block] Goodwill attributed to the business segments Goodwill By Segment [Text Block] Schedule of goodwill by segment (including goodwill not yet allocated) and the changes during the year due to acquisition, sale, impairment or for other reasons. Changes in the carrying amount of goodwill Goodwill Roll Forward [Text Block] Goodwill roll forward showing the reconciliation of goodwill from the beginning of a period to the end of a period. Mortgage servicing rights activity Mortgage Servicing Rights M S Rs Fair Value Roll Forward Text Block Mortgage Servicing Rights (MSRs) roll forward showing the reconciliation of the fair value of MSRs from the beginning of a period to the end of a period. RFS mortgage fees and related income Fees And Commissions, Mortgage Banking And Related, Components [Text Block] Fees, commissions and related income from Mortgage Banking activities. Key economic assumptions used to determine the fair value of the Firm's Mortgage Servicing Rights (MSRs) Mortgage Servicing Rights M S Rs Fair Value Key Economic Assumptions Used To Determine Text Block Key economic assumptions used to determine the fair value of the Firm's Mortgage Servicing Rights (MSRs). Intangible assets components of credit card relationships, core deposits and other intangible assets Intangible Assets Net Excluding Goodwill And Mortgage Servicing Rights M S Rs Text Block Sum of the carrying amounts of all intangible assets, excluding goodwill and Mortgage Servicing Rights (MSRs), as of the balance sheet date, net of accumulated amortization and impairment charges. Amortization expense related to credit card relationships, core deposits and other intangible assets Amortization Of Intangible Assets [Text Block] The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. Estimated future amortization expense related to credit card relationships, core deposits and other intangible assets Finite Lived Intangible Assets, Future Amortization Expense [Text Block] The aggregate estimated amortization expense for each of the five succeeding fiscal years for intangible assets subject to amortization. Fair Value, Measurement Frequency [Domain] Fair Value, Measurements, Recurring [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Interest Rate Type [Domain] Debt Instrument Interest Rate Type [Domain] Debt Instrument Interest Rate Type Domain contains members to distinguish between instruments of fixed or variable interest rates. Long-term Debt, Fixed Interest Rate [Member] Long-term Debt, Fixed Interest Rate [Member] The portion of the carrying amount of long-term borrowings outstanding as of the balance-sheet date, including current maturities, which accrues interest at a set, unchanging rate. Long Term Debt Variable Interest Rate [Member] Long Term Debt Variable Interest Rate [Member] The portion of the carrying amount of long-term borrowings outstanding as of the balance-sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. Senior Debt Obligations [Member] Senior Debt Obligations [Member] Subordinated Debt Obligations [Member] Subordinated Debt Obligations [Member] Federal Home Loan Bank Advances [Member] Federal Home Loan Bank Advances [Member] Junior Subordinated Debt [Member] Junior Subordinated Debt [Member] Secured Debt [Member] Secured Debt [Member] Long-term Beneficial Interests [Member] Long-term Beneficial Interests [Member] BeneficialInterestMember. Guarantor Obligations by Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantee of Indebtedness of Others [Member] Long-term debt carrying values by contractual maturity Maturities of Long-term Debt [Abstract] Under 1 year 1-5 years Long-term Debt, Maturing in Years One through Five Amount of long-term debt maturing in years one through five following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements, and other securities redeemable at fixed of determinable prices and dates. After 5 years Long-term Debt, Maturities, Repayments of Principal after Year Five Under 1 year, Minimum Debt Instrument Maturities In Next Twelve Months Interest Rate Stated Percentage Rate Range Minimum When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement maturing within the next twelve months following the date of the latest balance sheet presented in the financial statements. Under 1 year, Maximum Debt Instrument Maturities In Next Twelve Months Interest Rate Stated Percentage Rate Range Maximum When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement maturing within the next twelve months following the date of the latest balance sheet presented in the financial statements. 1-5 years, Minimum Debt Instrument Maturities In Years One Through Five, Interest Rate Stated Percentage Rate Range, Minimum When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement maturing in years one through five following the date of the latest balance sheet presented in the financial statements. 1-5 years, Maximum Debt Instrument Maturities In Years One Through Five Interest Rate Stated Percentage Rate Range Maximum When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement maturing in years one through five following the date of the latest balance sheet presented in the financial statements. After 5 years, Minimum Debt Instrument Maturities After Year Five Interest Rate Stated Percentage Rate Range Minimum When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement maturing after year five following the date of the latest balance sheet presented in the financial statements. After 5 years, Maximum Debt Instrument Maturities After Year Five Interest Rate Stated Percentage Rate Range Maximum When presenting a range of interest rates, the highest stated (contractual) rate for funds borrowed under the debt agreement maturing after year five following the date of the latest balance sheet presented in the financial statements. Interest rates, Minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Interest rates, Maximum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Long Term Debt - Supplemental Information Long term Debt Supplemental Information Abstract Long Term Debt Textuals. Portion of long term debt guaranteed by FDIC under temporary liquidity guarantee program (TLG) Long Term Debt, Portion Guaranteed by FDIC Under Temporary Liquidity Guarantee Program Portion of long term debt guaranteed by the FDIC under the temporary liquidity guarantee program (TLG). Debt Instrument, Interest Rate, modified for the effects of hedge accounting, Minimum Debt Instrument Interest Rate Percentage Modified For Effects Of Hedge Accounting Excluding Debt Accounted For At Fair Value Minimum When presenting a range of interest rates, the lowest stated contractual rate modified for the effects of hedge accounting, for funds borrowed under the debt agreement as of the balance sheet date, excluding debt accounted for at fair value. Debt Instrument, Interest Rate, modified for the effects of hedge accounting, Maximum Debt Instrument, Interest Rate Percentage, Modified For Effects Of Hedge Accounting Excluding Debt Accounted For At Fair Value, Maximum When presenting a range of interest rates, the highest stated contractual rate modified for the effects of hedge accounting, for funds borrowed under the debt agreement as of the balance sheet date, exluding debt accounted for at fair value. Long term debt borrowings, at fair value Long term debt - redeemable at the option JPMorgan Chase Debt Instruments Call Feature Description of a feature that permits the issuer of the debt to repay or convert it before the stated maturity date (early retirement date). The description may include such items as the call price, the period that the issuer can call the debt, including the earliest call date, and other significant terms of the call feature, which may include the debt holders' ability to convert the debt to equity if the call option is exercised and contingent events that trigger the issuer's ability to call the debt. Long term debt maturing in year 2 Long term debt maturing in year 3 Long term debt maturing in year 4 Long term debt maturing in year 5 Zero-coupon notes Zero Coupon Notes Aggregate Carrying Value Including current and noncurrent portions, aggregate carrying amount of zero-coupn long-term borrowings as of the balance sheet date. Which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any. Zero-coupon notes - aggregate principal amount at maturity Zero-coupon notes - aggregate principal amount at maturity Includes appregate principal amount of zero-coupon long-term borrowings at their maturities. Weighted average contractual interest rates for long term debt Debt Instrument Weighted Average Interest Rate Stated Percentage Excluding Structured Notes Weighted average interest rate based on rate stated in the contractual debt agreements. Long term debt weighted average contractual Interest Rate, modified for the effects of hedge accounting Debt Instrument Weighted Average Interest Rate Modified For Effects Of Hedge Accounting The weighted average contractual rate modified for the effects of hedge accounting, for funds borrowed under the debt agreement as of the balance sheet date. Parent Company guarantee of certain debt of its subsidiaries, including both long-term debt and structured notes Guarantor Obligations, Current Carrying Value Collateral used to secure Long Term Debt Long Term Debt Collateral Collateral used to secure Long Term Debt. Redeemable Long Term Debt Redeemable Long Term Debt Redeemable Long Term Debt. Scenario, Forecast [Member] Scenario, Forecast [Member] U.S. government agencies [Member] Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Fair value and gross unrealized loss, securities impairment [Abstract] Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] Available-for-sale Securities, with gross unrealized losses, Less than 12 Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Available-for-sale Securities, with gross unrealized losses, Less than 12 Months, Gross unrealized losses Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses Available-for-sale Securities, with gross unrealized losses, 12 Months or Longer, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale securities, with gross unrealized losses, Fair Value, Total Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, with gross unrealized losses, Gross Unrealized Losses Trading Activity, Gains and Losses, by Income Statement Location [Axis] Trading Activity, Gains and Losses, by Income Statement Location [Axis] Trading Activity, Gains and Losses, by Income Statement Location [Domain] Principal transactions Other income Other Income [Member] Letters of Credit Hedged By Derivative Transactions Changes in fair value under the fair value option election Fair Value, Option, Partial Election Disclosures [Abstract] Federal funds sold and securities purchased under resale agreements Fair Value Option Federal Funds Sold And Securities Purchased Under Resale Agreements Changes In Fair Value Changes in fair value related to federal funds sold and securities purchased under resale agreements for which the fair value election was made. Securities borrowed Fair Value Option Securities Borrowed Changes In Fair Value Changes in fair value related to securities borrowed for which the fair value election was made. Trading assets: Trading Securities, Change in Unrealized Holding Gain (Loss) [Abstract] Debt and equity instruments, excluding loans Fair Value Option Debt And Equity Trading Securities Changes In Fair Value Changes in fair value related to debt and equity trading securities for which the fair value election was made. Loans reported as trading assets: Loans Reported As Trading Assets [Abstract] Loans reported as trading assets. Changes in instrument-specific credit risk Fair Value Option Loans Reported As Trading Assets Changes In Fair Value From Instrument Specific Credit Risk This item represents the estimated amount of gains or losses included in earnings during the period attributable to changes in instrument-specific credit risk arising from loans reported as trading assets. Other changes in fair value Fair Value Option Loans Reported As Trading Assets Other Changes In Fair Value Other changes in fair value of loans reported as trading assets for which the fair value election was made. Loans: Notes and Loans, Noncurrent [Abstract] Changes in instrument-specific credit risk Fair Value Option Credit Risk Gains Losses On Loans This item represents the estimated amount of gains or losses included in earnings during the period attributable to changes in instrument-specific credit risk arising from loans. Other changes in fair value Fair Value Option Loans Other Changes In Fair Value Other Changes In Fair Value of loans for which the fair value election was made. Other assets Fair Value Option Other Assets Changes In Fair Value This item represents the changes in fair value for other assets for which the fair value election was made that are not otherwise specified in the taxonomy. Deposits Fair Value Option Deposits Changes In Fair Value Changes in fair value related to deposits for which the fair value election was made. Federal funds purchased and securities loaned or sold under repurchase agreements Fair Value Option Federal Funds Purchased And Securities Sold Under Agreements To Repurchase Changes In Fair Value Changes in fair value related to federal funds purchased and securities loaned or sold under repurchase agreements for which the fair value election was made. Other borrowed funds Fair Value Option Other Borrowed Funds Changes In Fair Value Changes in fair value related to other borrowed funds for which the fair value election was made. Trading liabilities Trading liabilities Change in Fair Value Trading liabilities, change in fair value. Beneficial interests issued by consolidated VIEs Fair Value Option Beneficial Interests Issued By Consolidated V I Es Changes In Fair Value Changes in fair value related to beneficial interests issued by consolidated VIEs for which the fair value election was made. Other liabilities Fair Value Option Other Liabilities Changes In Fair Value Changes in fair value related to other liabilities not otherwise specified in the taxonomy for which the fair value election was made. Long-term debt: Long-term Debt, Unclassified [Abstract] Changes in instrument-specific credit risk Fair Value Option Credit Risk Gains Losses Long Term Debt This item represents the estimated amount of gains and losses from fair value changes included in earnings that are attributable to changes in the instrument-specific credit risk of Long-term Debt with fair values that have been significantly affected during the reporting period by changes in the instrument-specific credit risk. Other changes in fair value Fair Value Option Long Term Debt Other Changes In Fair Value Changes In the fair value of long term debt related to factors other than instrument-specific credit risk. Fair Value Option - Supplemental Information Fair Value Option Numeric Abstract Fair Value Option Numeric. Changes in instrument-specific credit risk related to structured notes Contractual amount of letters of credit for which fair value option was elected Carrying value of letters of credit Issuer Trusts Guarantor Subsidiaries [Member] Parent company statements of cash flow Net Income Cash dividends from subsidiaries Other, net All Other Operating Activities The net cash (outflow) inflow from other operating activities and non-cash adjustments to reconcile net income to net cash provided by operating activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Net cash provided by operating activities Net change in: Deposits with banking subsidiaries Available-for-sale securities: Purchases Available-for-sale securities: Proceeds from sales and maturities Loans, net Advances to subsidiaries, net Increase (Decrease) Due from Affiliates Investments (at equity) in subsidiaries, net Payments for (Proceeds from) Investments Net cash provided by/(used in) investing activities Net change in borrowings from subsidiaries Increase (Decrease) in Due to Affiliates Net change in other borrowed funds Proceeds from the issuance of long-term debt Proceeds from the assumption of subsidiaries long-term debt Proceeds from Assumption of Long-term Debt and Capital Securities, Net The cash inflow associated with security instrument that has been assumed by the parent company from it's subsidiaries that either represents a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Repayments of long-term debt Proceeds from issuance of common stock Proceeds from issuance of preferred stock and Warrant to the U.S. Treasury Proceeds From Issuance Of Preferred Stock And Warrant To Us Treasury Proceeds from issuance of preferred stock and Warrant to the U.S. Treasury. Proceeds from issuance of other preferred stock Proceeds from Issuance of Redeemable Preferred Stock Redemption of preferred stock issued to the U.S. Treasury Redemption of other preferred stock Payments for Repurchase of Redeemable Preferred Stock Treasury stock purchased Payments for Repurchase of Common Stock Dividends paid All other financing activities, net Net cash (used in)/provided by financing activities Net increase/(decrease) in cash and due from banks Cash income taxes paid, net Credit Quality of Credit Card Loans, by Geographic Region [Table] Credit Quality of Credit Card Loans, by Geographic Region [Table] Credit Quality of Credit Card Loans, by Geographic Region [Table] Pennsylvania [Member] Loans outstanding in Pennsylvania. Virginia [Member] Loans outstanding in Virginia. Georgia [Member] Loans outstanding in Georgia. Credit Card Loans, by Geographic Region [Line Items] Credit Card Loans, by Geographic Region [Line Items] Interest Income And Interest Expense (Tables) [Abstract] Interest Income And Interest Expense. Details of interest income and interest expense Details Of Interest Income And Interest Expense [Table Text Block] Details of interest income and interest expense, which include the current-period interest accruals for financial instruments measured at fair value, except for financial instruments containing embedded derivatives that would be seperately accounted for in accordance with U.S. GAAP absent the fair value option election; for those instruments, all changes in fair value, including any interest elements, are reported in principal transaction revenue. Components of income tax expense/(benefit) included in the Consolidated Statements of Income Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Reconciliation of the applicable statutory U.S. income tax rate to the effective tax rate the effective tax rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Significant Components of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Reconciliation of the beginning and ending amount of unrecognized tax benefits Summary of Income Tax Contingencies [Table Text Block] U.S. and non-U.S. components of income before income tax expense/(benefit) and extraordinary gain income Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Other real estate owned [Member] Other Real Estate Owned [Member] Other real estate owned. Generally, the largest component of real estate owned by lenders is assets taken in settlement of troubled loans through surrender or foreclosure. Real estate investments, real estate loans that qualify as investments in real estate, and premises that are no longer used in operations may also be included in real estate owned. Other assets [Member] Other Assets Excluding Other Real Estate Owned [Member] Other assets not individually reported, excluding other real estate owned. Assets and liabilities measured at fair value on a nonrecurring basis [Line Items] Assets and liabilities measured at fair value on a nonrecurring basis [Abstract] Assets and liabilities measured at fair value on a nonrecurring basis Abstract Assets and liabilities measured at fair value on a nonrecurring basis Abstract. Loans retained Loans Retained, Fair Value Disclosure This element represents the disclosure related to loans and leases receivable retained (not held-for-sale) that are measured at fair value on a nonrecurring basis in periods after initial recognition. Loans held-for-sale Loans Held-for-sale, Fair Value Disclosure Total loans Total assets at fair value on a nonrecurring basis Assets, Fair Value Disclosure, Nonrecurring Total liabilities at fair value on a nonrecurring basis Fair value adjustments associated with unfunded held-for-sale lending-related commitments within the leveraged lending portfolio Fair Value Adjustments Associated With Unfunded Held For Sale Lendingrelated Commitments This element represents the fair value adjustments associated with unfunded held-for-sale lending-related commitments. Fair Value, Option, Changes in Fair Value, Gain (Loss) Fair Value, Option, Changes in Fair Value, Gain (Loss) Schedule of Financing Receivables, Trial Modifications [Table] Schedule of Financing Receivables, Trial Modifications [Table] Provides information regarding financing receivables whose terms have been modified on a trial basis. Financing Receivable Allowance [Domain] Consumer Portfolio Segment Financing Receivable, Troubled Debt Restructurings [Axis] Financing Receivable, Troubled Debt Restructurings [Domain] Residential real estate, excluding PCI [Member] Financing Receivable, Trial Modifications, Time Period of Trial Modification Programs [Axis] Financing Receivable, Trial Modifications, Time Period of Trial Modification Programs [Axis] Describes a time period related to trial modification programs. Financing Receivable, Trial Modifications, Time Period of Trial Modification Programs [Domain] Financing Receivable, Trial Modifications, Time Period of Trial Modification Programs [Domain] Time periods related to trial modification programs. Trial Modifications Since Mid 2010 [Member] Trial Modifications Approved On Or After July 1, 2010 [Member] Describes all trial modifications that were approved on or after July1, 2010. Financing Receivable, Trial Modifications [Line Items] Information related to trial modifications of financing receivables. Amount of loans in a trial modification period Financing Receivable, Trial Modifications, Recorded Investment The percentage of the outstanding recorded investment related to financing receivables that have been modified and are on a trial modification period. Loans on a trial modification period are not accounted for as troubled debt restructurings until such modification becomes permanent. Percentage of trial modifications resulting in completed modifications Financing Receivable, Trial Modifications, Percentage of Trial Modifications Resulting in Completed Modifications The percentage of trial modifications that have resulted in a completed modification. Trial modifications that did not successfully complete the trial period Financing Receivable, Trial Modifications, Percentage of Trial Modifications That Did Not Successfully Complete Trial Period The percentage of trial modifications that did not successfully complete the trial period. Percentage of trial modifications still in the trial period Financing Receivable, Trial Modifications, Percentage of Trial Modifications Still in Trial Period The percentage of trial modifications that are still in the trial period. Plan Asset Categories [Member] Plan Asset Categories [Member] Plan Asset Categories. Cash and cash equivalents [Member] Cash and Cash Equivalents [Member] Equity Securities, Industry [Member] Equity Securities, Industry [Member] Equity securities - Capital equipment [Member] Equity Securities, Industry - Capital Equipment [Member] The categorized portion of assets consisting of equity securities within the industry category of capital equipment. Equity securities - Consumer goods [Member] Equity Securities, Industry - Consumer Goods [Member] The categorized portion of assets consisting of equity securities within the industry category of consumer goods. Equity securities - Banks and finance companies [Member] Equity Securities, Industry - Banks and Finance Companies [Member] The categorized portion of assets consisting of equity securities within the industry category of banks and finance companies. Equity securities - Business services [Member] Equity Securities, Industry - Business Services [Member] The categorized portion of assets consisting of equity securities within the industry category of business services. Equity securities - Energy [Member] Equity Securities, Industry - Energy [Member] The categorized portion of assets consisting of equity securities within the industry category of energy. Equity securities - Materials [Member] Equity Securities, Industry - Materials [Member] The categorized portion of assets consisting of equity securities within the industry category of materials. Equity securities - Real estate [Member] Equity Securities, Industry - Real estate [Member] The categorized portion of assets consisting of equity securities within the industry category of real estate. Equity securities - Other [Member] Equity Securities, Industry - Other [Member] The categorized portion of assets consisting of equity securities within an industry category not separately categorized elsewhere. Limited Partnerships [Member] Limited Partnerships [Member] The categorized portion of assets consisting of limited partnerships, chiefly composed of hedge funds, private equity funds and real estate. Limited partnerships - Hedge funds [Member] Limited partnerships - Private equity funds [Member] Real Assets [Member] Real Assets [Member] Real assets include investments in productive assets such as agriculture, energy rights, mining and timber properties and exclude raw land to be developed for real estate purposes. U.S. federal, state, local and non-U.S. government debt securities [Member] Government Debt Securities [Member] The categorized portion of assets consisting government debt securities of all types, including U.S. (federal, state & local) and non-U.S. Plan Asset Categories Other [Member] Plan Asset Categories Other [Member] The categorized portion of plan assets not separately categorized elsewhere. Total liabilities at fair value [Member] Total liabilities at fair value [Member] Major categories of plan liabilities based on the nature and risk of liabilities in an employer's plan(s). Derivative Payables [Member] Derivative Payables [Member] The categorized portion of plan liabilities consisting of derivative payables. Pension and OPEB plan assets and liabilities measured at fair vlue Defined Benefit Plan Fair Value Of Plan Assets And Liabilities Abstract Defined Benefit Plan Fair Value Of Plan Assets And Liabilities. Fair Value of Plan Assets Fair Value of Plan Liabilities Defined Benefit Plan, Fair Value of Plan Liabilities For a defined benefit plan, the fair value of plan liabilities. Pension and OPEB plan assets and liabilities - supplemental information Defined Benefit Plan, Fair Value of Plan Assets, Supplemental Information [Abstract] Defined Benefit Plan, Fair Value of Plan Assets, Supplemental Information [Abstract] NONINTEREST EXPENSE Noninterest Expense [Text Block] Total aggregate amount of all noninterest expense. Credit Quality of Credit Card Loans, by Class, by Delinquency [Table] Credit Quality of Credit Card Loans, by Class, by Delinquency [Table] Credit Quality of Credit Card Loans, by Class, by Delinquency [Table] Consumer Credit Card Financing Receivable [Member] Credit Card Loans, by Class, by Delinquency [Line Items] Credit Card Loans, by Class, by Delinquency [Line Items] Loans and Leases Receivable, Impaired, Nonperforming, Nonaccrual of Interest Loans and Leases Receivable, Impaired, Nonperforming, Nonaccrual of Interest Retained Loans Percentage Equal Or Greater Than Thirty Days Past Due Retained Loans Percentage Equal Or Greater Than Thirty Days Past Due Percentage of recorded investment in retained loans that are equal to or greater than thirty days past due. Percentage Of Loans Ninety Plus Days Past Due To Total Retained Loans Percentage Of Loans Ninety Plus Days Past Due To Total Retained Loans Percentage of loans ninety plus days past due to total retained loans. Condensed statement of net assets acquired Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Unaudited pro forma condensed combined financial information reflecting the Bear Stearns merger and Washington Mutual transaction Business Acquisition, Pro Forma Information [Table Text Block] Purchase Price Allocation Schedule of Purchase Price Allocation [Table Text Block] Variable Interest Entities by Classification of Transferee [Axis] Qualitative and Quantitative Information, Transferor's Continuing Involvement, Transferred Financial Assets, by Transfer or Transferee [Axis] Variable Interest Entities, consolidated and nonconsolidated Qualitative and Quantitative Information, Transferor's Continuing Involvement in Transferred Financial Assets, Transfer or Transferee [Domain] Investment Type [Axis] Investment Type [Domain] Securitized loans [Member] Securitized loans [Member] Securitized loans Member. Information about delinquencies, net charge-offs, and components of off-balance sheet securitized financial assets [Abstract] Loans Managed, Securitized or Asset-backed Financing Arrangement [Abstract] Credit exposure / loans securitized Qualitative and Quantitative Information, Transferor's Continuing Involvement, Principal Amount Outstanding, Derecognized Amount 90 days past due Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing Liquidation Losses Net Credit Losses During Period on Loans Managed or Securitized or Asset-backed Financing Arrangement Total assets held by securitization VIEs Qualitative and Quantitative Information, Transferor's Continuing Involvement, Principal Amount Outstanding Securitized loans in which the firm has no continuing involvement Securitized loans in which the firm has no continuing involvement Securitized loans in which the firm has no continuing involvement. Assets held in consolidated securitization VIEs Qualitative and Quantitative Information, Transferor's Continuing Involvement, Principal Amount Outstanding, Continued Recognition, Amount Credit Quality of Other Consumer Loans, by Class, by Delinquency, by Geography, by Risk Rating [Table] Credit Quality of Other Consumer Loans, by Class, by Delinquency, by Geography, by Risk Rating [Table] Credit Quality of Other Consumer Loans, by Class, by Delinquency, by Geography, by Risk Rating [Table] Consumer business banking Consumer Business Banking [Member] Class of financing receivables related to consumer business banking financing receivables. Student And Other Loans [Member] Class of financing receivables related to student and other consumer financing receivables, excluding credit card loans. 30-119 days past due [Member] Days Past Due 30 to 119 [Member] Days Past Due, 30 to 119 Days Past Due, 120 or More [Member] Days Past Due, 120 or More [Member] Student And Other Loans Thirty Or More Days Past Due And Still Accruing Insured By Us Government Agencies Under The Federal Family Education Loan Program Financing Receivable Allowance For Loan Losses Activity [Table] Financing Receivable Allowance For Loan Losses Activity [Table] Financing receivable allowance for loan losses activity. Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Impact of new accounting guidance for consolidation of VIEs Cumulative-Effect Adjustment, Consolidation of Variable Interest Entity [Member] Firm Administered Multi Seller Conduits [Member] Consumer Loan Securitization Entities [Member] Consumer Loan Securitization Entities [Member] Consumer loan securitization entities, including those related to residential mortgages, commerical mortgages, automobile loans and student loans. Allowance for Loans and Leases Receivable [Member] Allowance for Loans and Leases Receivable [Member] Financing Receivable Allowance For Loan Losses Activity [Axis] Financing Receivable Allowance For Loan Losses Activity [Axis] Information related to financing receivables and activity in the allowance for credit losses by financing receivable portfolio segment. Undivided interest in the credit card trusts range [Axis] Undivided interest in the credit card trusts range [Axis] Undivided interest in the credit card trusts range. Undivided interest in the credit card trusts range [Domain] Undivided interest in the credit card trusts range. Financing Receivable Allowance For Loan Losses Activity [Line Items] Financing Receivable Allowance For Loan Losses Activity [Line Items] Financing receivable allowance for loan losses activity. Allowance for loan losses: Allowance for Loan and Lease Losses [Roll Forward] Allowance for loan losses at January 1 Net charge-offs Allowance for Loan and Lease Losses, Write-offs Gross (recoveries) Valuation Allowances and Reserves, Recoveries Net charge-offs Allowance for Loan and Lease Losses, Provision for Loss, Net Provision for loan losses Provision for Loan and Lease Losses Other Allowance for Loan and Lease Losses, Adjustments, Net Ending balance at March 31 Allowance for loan losses by impairment methodology: Impairment methodology Abstract Impairment methodology. Asset-specific, allowance Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Formula-based Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Purchased Credit Impaired Certain Loans and Debt Securities Acquired in Transfer, Allowance for Credit Losses Due to Subsequent Impairment Total allowance for loan losses Loans by impairment methodology: Loans by impairment methodology Abstract Loans by impairment methodology. Asset-specific Financing Receivable, Individually Evaluated for Impairment Formula-based Financing Receivable, Collectively Evaluated for Impairment Purchased credit-impaired Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Consumer, Outstanding Balance Impaired collateral-dependent loans: Impaired Collateral Dependent Loans Abstract Impaired collateral-dependent loans. Loans measured at fair value of collateral less cost to sell Loans And Leases Receivable Impaired Collateral Dependent Loans At Fair Value Reflects the carrying amount of impaired collateral dependent loans at fair value less cost to sell. Allowance for loan losses recorded on-balance sheet upon the adoption of new accounting guidance related to VIEs New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Allowance for Credit Losses Cumulative Effect Of Change In Accounting Principles Allowance For Loan Losses. General Discussion of Pension and Other Postretirement Benefits [Abstract] Pension and Other Postretirement Plans, Policy [Policy Text Block] Segments, Geographical Areas [Abstract] International Operations International Operations [Text Block] This element may be used to disclose in its entirety the names of foreign countries from which revenue is material and the amount of revenue from external customers attributed to those countries. Amount must be based on the financial information used to produce the general-purpose financial statements. An entity may also provide subtotals of geographic information about groups of countries; accordingly, this element also may be used to identify a group of countries and provide the amount of revenue for that group. Entity-Wide Disclosure on Geographic Areas, Revenue from External Customers Attributed to Individual Foreign Countries or groups of countries Entity Wide Disclosure On Geographic Areas Revenue From External Customers Attributed To Individual Foreign Countries Or Groups Of Countries Table [Text Block] A table disclosing the name of a foreign country from which revenue is material, and amount of revenue from external customers attributed to that country. An entity may also provide subtotals of geographic information about groups of countries. Securities (Tables) [Abstract] Securities. Securities gains and losses Available for sale Securities Gains Losses [Text Block] This item represents the entire disclosure related to Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. Amortized costs and estimated fair values Amortized Costs and Estimated Fair Values [Text Block] This item details amortized cost, unrealized gain/loss, and fair value for both debt and equity securities classified as (1) available-for-sale securities and (2)held-to-maturity securities. AFS securities are reported at fair value and HTM securities are reported at amortized cost on the Consolidated Balance Sheets. Securities impairment Securities Impairment [Text Block] This item represents the fair value of securities categorized as AFS that have been in a continuous unrealized loss position for less than twelve months as well as twelve months or longer. This item also details the total fair value and the total gross unrealized losses. Credit losses in securities gains and losses Credit Losses in Securities Gains and Losses [Text Block] This item represents other-than-temporary credit losses recognized in income. Changes in the credit loss component of credit-impaired debt securities Changes In Credit Loss Component Of Creditimpaired Debt Securities [Text Block] This item represents a rollforward of the credit loss component of other-than-temporary impairment losses that have been recognized in income, related to debt securities that the Firm does not intend to sell. Amortized cost and estimated fair value by contractual maturity Amortized Cost And Estimated Fair Value By Contractual Maturity Text Block This item represents the amortized cost and estimated fair value of the Firm's AFS and HTM securities by contractual maturity. Interest Income (Expense), after Provision for Loan Loss [Abstract] Interest Income and Interest Expense [Table] Interest income and interest expense [Table] Interest income and interest expense [Table] Interest Income and Interest Expense [Axis] interest income and interest expense [Axis] Interest income and interest expense [Axis] Interest Income and Interest Expense [Domain] Interest Income and Interest Expense [Domain] Interest Income and Interest Expense [Domain] Interest Income and Interest Expense [Line Items] Interest Income and Interest Expense [Line Items] Interest Income and Interest Expense [Line Items] Details of interest income and interest expense [Abstract] Details of interest income and interest expense [Abstract] Details of interest income and interest expense. Interest income Interest and Dividend Income, Operating [Abstract] Loans Interest and Fee Income, Loans and Leases Securities Interest And Dividend Income Securities Available For Sale And Held To Maturity Interest income on securities other than those classified as trading ("available-for-sale securities" and "held-to-maturity securities") includes: (a) interest and dividends earned on all securities and (b) amortization and accretion (as applicable) of discounts and premiums, if any. Trading assets Interest and Dividend Income, Securities, Trading or Measured at Fair Value Federal funds sold and securities purchased under resale agreements Interest Income, Federal Funds Sold and Securities Purchased under Agreements to Resell Securities borrowed Interest Income Securities Borrowed Interest income on securities that are borrowed in connection with securities financing activities. Deposits with banks Interest Income, Deposits with Financial Institutions Other assets Other Interest and Dividend Income Total interest income Interest expense Interest Expense [Abstract] Interest-bearing deposits Interest Expense, Deposits Short-term and other liabilities Interest Expense, Short-term Borrowings Long-term debt Interest Expense, Long-term Debt Beneficial interests issued by consolidated VIEs Interest Expense, Beneficial Interests Issued by Consolidated Variable Interest Entities Total interest expense Net interest income Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss Net Investment Hedging [Member] Net Investment Hedging [Member] Derivative Instruments, Gain (Loss) by Derivative Instrument Risk [Axis] Net investment hedge gains and losses [Abstract] Net investment hedge gains and losses Abstract Net investment hedge gains and losses. Excluded components recorded directly in income Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Effective portion recorded in OCI Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Earnings Per Share (Details) [Abstract] Earnings Per Share Details Abstract. Schedule of Earnings Per Share, Basic and Diluted [Table] Schedule of Earnings Per Share, Basic and Diluted [Table] Earnings Per Share, Basic and Diluted [Line Items] Earnings Per Share, Basic and Diluted [Line Items] Basic and diluted earnings per share [Abstract] Basic And Diluted Earning Per Share Abstract Basic And Diluted Earning Per Share Abstract. Basic earnings per share Income (Loss) from Operations before Extraordinary Items Extraordinary Item, Gain (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: Preferred stock dividends Dividends, Preferred Stock Preferred Stock Redemption Premium Net income applicable to common equity Net income applicable to common equity Net income applicable to common equity before adjustments for participating securities. Less: Dividends and undistributed earnings allocated to participating securities Participating Securities, Distributed and Undistributed Earnings Net income applicable to common stockholders Total weighted-average basic shares outstanding Income (Loss) from Operations before Extraordinary Items, Per Basic Share Income (Loss) from Extraordinary Items, Net of Tax, Per Basic Share Income (Loss) from Extraordinary Items, Net of Tax, Per Basic Share Net income per share Diluted earnings per share Net income applicable to common stockholders Add: Employee stock options, SARs and warrants Weighted Average Number Diluted Shares Outstanding Adjustment Total weighted-average diluted shares outstanding Income (Loss) from Operations before Extraordinary Items, Per Diluted Share Income (Loss) from Extraordinary Items, Net of Tax, Per Diluted Share Income (Loss) from Extraordinary Items, Net of Tax, Per Diluted Share Net income per share Earnings per share (Numeric) [Abstract] Earnings Per Share Numeric Abstract Earnings Per Share Antidilutive options and warrants excluded from the computation of diluted EPS Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Preferred Stock Redemption Premium Per Share Preferred Stock Redemption Premium Per Share The per share amount of the excess of (1) fair value of the consideration transferred to the holders of the preferred stock over (2) the carrying amount of the preferred stock in the registrant's balance sheet, during the accounting period, which will be subtracted from net earnings to arrive at net earnings available to common shareholders in the calculation of earnings per share. Internal Use Software, Policy [Policy Text Block] Internal Use Software, Policy [Policy Text Block] Income Taxes Income Tax Disclosure [Text Block] Loans (Tables) [Abstract] Loans Residential real estate, excluding PCI [Member] Purchased Credit Impaired [Member] Loan balances by portfolio segment Schedule of Aggregate Loan Balances by portfolio segment [Text Block] Schedule of the aggregate loan balances broken out by retained, held-for-sale, and at fair value, by portfolio segment. Carrying value of retained loans purchased, retained loans sold and retained loans reclassified to held-for-sale Schedule Of Retained Loans Purchases Sales And Transfer Into Held For Sale By Portfolio Segment [Text Block] Schedule of retained loans purchases, sales, and transfer into held-for-sale loan portfolio by portfolio segment. Retained loans activities by portfolio segments Wholesale Real Estate Class Of Loans [Text Block] Schedule detailing wholesale real estate class of loans that are collateralized by multi-family properties, commercial construction and development, and other real estates including lodging, Real estate investment trusts, single-family, as well as loans to commercial lessors. Net gains/(losses) on loan sales by portfolio segment Schedule Of Net Gainslosses On Loan Sales By Portfolio Segment Text Block Schedule of the net gain or loss resulting from a sale of loans, including adjustments to record loans classified as held-for-sale at the lower-of-cost-or-market and fair value adjustments to loan held for investment purposes. Impaired loans Impaired Loans [Text Block] Schedule detailing for impaired loans the carrying amount, unpaid principal balance, and the associated allowance, by the class of loans. Average impaired loans and related interest income Average Impaired Loans And Related Interest Income [Text Block] Schedule detailing the average carrying amount and interest income recognized on the accrual and cash basis by the class of financing receivable. Loans Modifications Loans Modifications [Text Block] Schedule detailing information related to troubled debt restructurings by the class of financing receivable. Nature and extent of modifications Nature and Extent of Loan Modifications [Table Text Block] Schedule providing information on how loans were modified in troubled debt restructurings. Troubled Debt Restructurings on Financing Receivables [Table Text Block] Troubled Debt Restructurings on Financing Receivables [Table Text Block] Financial effects of modifications and redefaults Financial Effects of Loan Modifications and Redefaults [Table Text Block] Schedule providing information about the financial effects of concessions granted on loans that were modified in troubled debt restructurings redefaults. Consumer loans by class, excluding credit card loan portfolio segment Schedule Of Aggregate Loan Balances By Class Of Loans [Text Block] Schedule of aggregate loan balances by Class of Loans. Schedule of loans recorded, credit quality indicator Schedule Of Loans Recorded Investment Credit Quality Indicator [Text Block] Schedule Of Loans Recorded Investment Credit Quality Indicator. Accretable yield activity Certain Loans Acquired In Transfer Not Accounted For As Debt Securities Accretable Yield Movement Schedule Roll Forward [Text Block] A roll forward reconciliation of the accretable yield for from the beginning of a period to the end of a period for certain loans acquired in a transfer that are not accounted for as debt securities. Nature and extent of modfications [Abstract] Nature and extent of modfications [Abstract] Schedule of Financing Receivable, Troubled Debt Restructurings, Nature and Extent of Modifications [Table] Schedule of Financing Receivable, Troubled Debt Restructurings, Nature and Extent of Modifications [Table] Schedule detailing information related to the nature and extent of troubled debt restructurings disaggregated by class of financing receivable and portfolio segment. Financing Receivable, Modification Status [Axis] Describes the status of a modification, such as whether the modification is in a trial period or considered permanent. Financing Receivable, Modification [Domain] Financing receivables that have been modified by troubled debt restructurings . Permanent Modification [Member] Permanent Modification [Member] Financing receivables that have been permanently modified by troubled debt restructurings. Trial Modification [Member] Financing receivables that have been modified by troubled debt restructurings that are currently in the trial modification period. Financing Receivable, Troubled Debt Restructurings [Axis] Financing Receivable, Troubled Debt Restructurings [Domain] Credit Card Modification Program Type [Axis] Describes the type of loan modification program. Credit Card Modification Programs [Domain] Credit card loan modification programs. Short-Term Credit Card Loan Modification Programs [Member] Short-term credit card loan modification programs. Long-Term Credit Card Loan Modification Programs [Member] Long-term credit card loan modification programs. Financing Receivable, Modifications [Line Items] Financing Receivable, Modifications [Line Items] New modifications Financing Receivable, Modifications, New Troubled Debt Restructurings The amount related to financing receivables that have been modified by troubled debt restructurings. Number of loans modified Financing Receivable, Modifications, Number of Contract Modifications That Occured The number of financing receivables modifications by troubled debt restructurings that occured. Interest rate reduction Financing Receivable, Modifications, Percentage of Modifications That Occurred, Interest Rate Reductions The percentage of financing receivables modifications by troubled debt restructurings that occurred and resulted in an interest rate reduction. Term or payment extensions Financing Receivable, Modifications, Percentage of Modifications That Occurred, Term Or Payment Extension The percentage of financing receivables modifications by troubled debt restructurings that occurred and resulted in a term or payment extension. Principal and/or interest deferred Financing Receivable, Modifications, Percentage of Modifications That Occurred, Principal And Interest Deferred The percentage of financing receivables modifications by troubled debt restructurings that occurred and resulted in a principal and/or interest deferral. Principal forgiveness Financing Receivable, Modifications, Percentage of Modifications That Occurred, Principal Forgiveness The percentage of financing receivables modifications by troubled debt restructurings that occurred and resulted in principal forgiveness. Other Financing Receivable, Modifications, Percentage of Modifications That Occurred, Other The percentage of financing receivables modifications by troubled debt restructurings that occurred and resulted in other concessions not otherwise specified, including variable interest to fixed interest rate modifications. Derivatives Qualifying As Guarantees [Member] Standby and Other Letters of Credit [Member] Standby and Other Letters of Credit [Member] Standby and Other Letters of Credit Member. Standby letters of credit and other financial guarantees and other letters of credit [Abstract] Standby letters of credit and other financial guarantees and other letters of credit [Abstract] Standby letters of credit and other financial guarantees and other letters of credit. Standby and Other Letters of Credit, Carrying Value Standby and Other Letters of Credit, Carrying Value Carrying value of standby and other letters of credit, which represents the allowance for lending-relaed commitments plus the fair value of the guarantee liability. Standby and Other Letters of Credit: Allowance Standby and Other Letters of Credit: Allowance Allowance for lending-related commitments for standby and other letters of credit. Guarantor Obligations, Current Carrying Value Standby Letters of Credit and Other Financial Guarantees, Internal Credit Rating, Investment Grade Standby Letters of Credit and Other Financial Guarantees, Internal Credit Rating, Investment Grade Standby letters of credit and other financial guarantees which are rated as investment-grade per company defined internal payment/performance risk groupings used for managing risk. Standby Letters of Credit and Other Financial Guarantees, Internal Credit Rating, Non Investment Grade Standby Letters of Credit and Other Financial Guarantees, Internal Credit Rating, Non Investment Grade Standby letters of credit and other financial guarantees which are rated as noninvestment-grade per company defined internal payment/performance risk groupings used for managing risk. Valuation Allowances and Reserves, Balance Derivatives qualifying as guarantees Derivatives Qualifying as Guarantees [Abstract] Derivatives Qualifying as Guarantees [Abstract] Derivative, Notional Amount Derivative, Notional Amount Guarantee Obligations Maximum Exposure Derivatives Guarantee Obligations Maximum Exposure Derivatives Maximum potential amount of future payments (undiscounted) for derivatives qualifying as guarantees the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. Derivatives Maximum Exposure To Loss Derivatives Maximum Exposure To Loss Derivatives maximum exposure to loss. Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax [Abstract] Net gain/(loss) Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax Prior service credit/(cost) Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax Accumulated other comprehensive income/(loss), pretax, end of year Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax Defined Benefit Plan Percen Above Which Amortization Of Net Gains And Losses Is Included In Annual Net Periodic Benefit Cost Defined Benefit Plan Percen Above Which Amortization Of Net Gains And Losses Is Included In Annual Net Periodic Benefit Cost For a defined benefit plan, the percent above which amortization of net gains and losses is included in annual net periodic benefit cost Schedule of Unrecognized Tax Benefits [Table] Schedule of Unrecognized Tax Benefits [Table] Unrecognized Tax Benefits Unrecognized Tax Benefits [Line Items] Unrecognized Tax Benefits [Line Items] Reconciliation of the beginning and ending amount of unrecognized tax benefits Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Balance at January 1, Increases based on tax positions related to the current period Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions Decreases based on tax positions related to the current period Unrecognized Tax Benefits, Decreases Resulting from Current Period Tax Positions Increases associated with the Bear Stearns merger Unrecognized Tax Benefits Increases Resulting From Business Combinations The gross amount of increases in unrecognized tax benefits resulting from the Bear Stearns merger, excluding amounts pertaining to examined tax returns. Increases based on tax positions related to prior periods Unrecognized Tax Benefits, Increases Resulting from Prior Period Tax Positions Decreases based on tax positions related to prior periods Unrecognized Tax Benefits, Decreases Resulting from Prior Period Tax Positions Decreases related to settlements with taxing authorities Unrecognized Tax Benefits, Decreases Resulting from Settlements with Taxing Authorities Decreases related to a lapse of applicable statute of limitations Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations Balance at December 31 Income tax expense, penalties and interest expense Income Tax Examination, Penalties and Interest Expense [Abstract] Income Tax Examination Penalties And Interest Expense After Tax Income Tax Examination Penalties And Interest Expense After Tax The sum of the after -tax amounts of estimated penalties and interest recognized in the period arising from income tax examinations. Income Tax Examination, Penalties and Interest Accrued Income Tax Examination, Penalties and Interest Accrued Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Scenario, Adjustment [Member] Scenario, Adjustment [Member] Adjustments for Change in Accounting Principle [Axis] Adjustments for Change in Accounting Principle [Axis] Adjustments for Change in Accounting Principle [Domain] Adjustments for Change in Accounting Principle [Domain] Reconciling Items [Member] Significant Reconciling Items [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Business and Segment Description [Abstract] Business and Segment Description [Abstract] Number of JPMorgan Chase & Co business segments Business Segments, Number of Segments The number of major reportable business segments in the consolidated entity. Approximate number of retail bank branches (third-largest nationally) Bank Branches, Approximate Number The approximate number of retail bank branches. Approximate number of ATMs (second-largest nationally) ATMs, Approximate Number Approximate number of ATMs available to customers. Approximate number of retail financial services branch salespeople assisting customers Branch Salespeople, Approximate Number The approximate number of branch salespeople. Locations from New York and Florida to California, number of states with Retail Financial Services Number of States in which Entity Operates Approximate value of mortgages originated annually Approximate value of mortgages originated annually Approximate value of mortgages originated annually. Mortgages and home equity loans serviced, approximate number Mortgages and home equity loans serviced, approximate number Approximate number of mortgages and home equity loans serviced. Approximate balance of current consumer credit card loans Approximate number of open credit card accounts Consumer Credit Card Accounts, Approximate Number The approximate number of open consumer credit card accounts (excluding commercial credit card portfolio). Approximate customer spending using Chase credit cards (excluding the commercial card portfolio) Consumer Credit Card Sales Volume Dollar amount of cardmember purchases, net of returns. Number of auto dealerships nationwide, where consumers can obtain loans Auto Dealerships, Available for Consumer Loans, Approximate Number The approximate number of auto dealerships where consumer loans are available. Number of schools and universities nationwide, where consumers can obtain loans Schools and Universities, Available for Consumer Loans, Approximate Number The approximate number of schools and universities for which consumer loans are available. Approximate number of clients nationally Clients, Approximate Number The approximate number of clients. Client Revenue Client Revenue Describes the amount of revenues earned by a typical client of the entity. Approximate number of real estate investors/owners Investors, Approximate Number Approximate number of investors/owners. Assets under supervision Assets Under Supervision, Fair Value The value of assets an investment adviser supervises on behalf of investors. Assets under supervision also represent assets under management as well as custody, brokerage, administration and deposit accounts. Segment results and reconciliation Segment Results and Reconciliation [Abstract] Segment results and reconciliation. Noninterest revenue Net interest income Segment Reporting Information, Interest Income or Expense, Net Total net revenue Segment Reporting Information, Net Revenue Amount of total revenue for the reportable segment, including revenue from external customers, transactions with other operating segments of the same entity, and (net) interest revenue. All considered to be "operating revenue" for purposes of the taxonomy. Provision for credit losses Provision for Loan, Lease, and Other Losses Credit allocation income/(expense) Credit Allocation Income (Expense) Allocation of revenues, provision for credit losses and expenses (to)/from business segment. Noninterest expense Income before income tax expense Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Income tax expense/(benefit) Income / (loss) before extraordinary gain Net income/(loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Average common equity Segment Reporting Information Average Common Equity Amount of average common equity attributed to the reportable segment. Return on average common equity Segment Reporting Information, Return on average common equity Return on average common equity attributed to the reportable segment. Overhead ratio Segment Reporting Information Overhead Ratio Overhead ratio attributed to the reportable segment. Business Acquisition, Cost of Acquired Entity, Purchase Price Business Acquisition, Cost of Acquired Entity, Purchase Price Gain on Purchase of Business Gain on Purchase of Business Business Acquisition Purchase Price Allocation Negative Goodwill Recognized As Extraordinary Gain Business Acquisition Purchase Price Allocation Negative Goodwill Recognized As Extraordinary Gain The amount of the excess of the net assets acquired over the cost of the acquired entity in a business combination that was recognized as an extraordinary gain. Net interest income Segment Managed Results Tax Equivalent Adjustment Segment Managed Results Tax Equivalent Adjustment [Abstract] Segment Managed Results Tax Equivalent Adjustment Abstract. Noninterest revenue Tax Equivalent Adjustments Noninterest Revenue Reportable Segment Tax equivalent adjustments on noninterest revenue for the reportable segment. Net interest income Tax Equivalent Adjustments Net Interest Income Reportable Segment Tax equivalent adjustments on net interest income for the reportable segment. Income tax expense Tax Equivalent Adjustments Income Tax Expense Benefit Reportable Segment Tax equivalent adjustments on income tax expense (benefit) for the reportable segment. Derivatives, Fair Value, by Balance Sheet Location [Axis] Balance Sheet Location [Domain] Trading Liabilities Line Item Trading Liabilities Line Item [Member] Line Item on the Balance Sheet in which the fair value amounts of the derivative instruments are included. Single-notch ratings downgrade Single-notch Downgrade [Member] Describes the impact of a single-notch downgrade of the entity's credit rating. Two-notch ratings downgrade Two-notch Downgrade [Member] Describes the impact of a two-notch downgrade of the entity's credit rating. Credit and liquidity risk, credit-related contingent features Credit and Liquidity Risk, Credit-related Contingency Features [Abstract] Credit and Liquidity Risk, Credit-related Contingency Features [Abstract] Net derivative payables containing collateral or termination feature, Fair Value Derivative, Net Liability Position, Aggregate Fair Value Net derivative payables posted collateral Collateral Already Posted, Aggregate Fair Value Additional collateral to be posted by the Firm as the impact of ratings downgrades Additional Collateral, Aggregate Fair Value Additional assets required to settle trades as the impact of ratings downgrades Assets Needed for Immediate Settlement, Aggregate Fair Value Current credit risk of derivative receivables Current credit risk of derivative receivables Abstract current credit risk of derivative receivables. Fair value related to derivative receivables Netting adjustment offsetting receivables Derivative Asset, Fair Value, Amount Offset Against Other Derivatives The amount as of the balance sheet date of the fair value of derivative assets that in accordance with the entity's accounting policy was offset against other derivative contracts under a master netting arrangement. Netting adjustment cash collateral received Derivative Asset, Fair Value, Amount Offset Against Collateral Fair value related to derivative payables Netting adjustment offsetting payables Derivative Liability, Fair Value, Amount Offset Against Other Derivatives The amount as of the balance sheet date of the fair value of derivative liabilities that in accordance with the entity's accounting policy were offset against other derivative contracts under a master netting arrangement. Netting adjustment cash collateral paid Derivative Liability, Fair Value, Amount Offset Against Collateral Total collateral for derivative transactions Derivative, Collateral [Abstract] Netting adjustment cash collateral received Other cash and liquid security collateral held Cash Collateral Not Subject To A Master Netting Agreement And Liquid Security Collateral Received In Derivative Transactions Represents cash collateral received that is not subject to a legally enforceable master netting agreement, and liquid securities collateral received/accepted. Additional collateral and security collateral held Derivative Asset, Fair Value, Amount Not Offset Against Collateral Total collateral held for derivative transations Collateral Held For Derivative Transations Represents collateral held for derivative transactions. Netting adjustment cash collateral paid Other cash and liquid security collateral pledged Cash Collateral Not Subject to Master Netting Agreement And Liquid Security Collateral Pledged In Derivative Transactions Represents cash collateral paid that is not subject to a legally enforceable master netting agreement, and liquid securities collateral pledged. Additional collateral and security collateral pledged Derivative Liability, Fair Value, Amount Not Offset Against Collateral Total collateral pledged for derivative transactions Collateral Pledged For Derivative Transactions Represents collateral pledged in derivative transactions. Impaired Financing Receivable Allowance Classification [Axis] Impaired Financing Receivable Allowance Classification. This axis provides for the differentiation of "with allowance" or "without allowance" to be set using only two members rather than entire trees of members describing both class and allowance. Impaired Financing Receivables Allowance Clasification [Domain] Impaired Financing Receivables Allowance Clasification [Domain] Impaired Financing Receivable with Related Allowance [Domain] Impaired Financing Receivable with Related Allowance [Domain] Impaired Financing Receivable with No Related Allowance [Domain] Impaired loans Unpaid principal balance of impaired loans Impaired Financing Receivable, Unpaid Principal Balance Financing Receivable, Recorded Investment, Nonaccrual Status Impaired Loans On Nonaccrual Status Impaired Loans On Nonaccrual Status Impaired Loans On Non-accrual Status. Modified Loans Repurchased From U S Government Agencies Excluded From Troubled Debt Restructurings Average Impaired Loans And Related Interest Income Abstract Average impaired loans and related interest income. Impaired loans (average) Impaired Financing Receivable, Interest Income, Accrual Method Impaired Financing Receivable, Interest Income, Cash Basis Method Impaired Financing Receivable, Interest Income, Cash Basis Method Loans And Leases Receivable, Impaired, Trouble Debt Restructuring Not Yet Made Six Payments Restrictions on Cash and Intercompany Funds Transfer [Table] A table for the disclosure of: (1) Cash and cash items which are restricted as to withdrawal or usage as well as the provisions of any restrictions. Restrictions may include legally restricted deposits held as compensating balances against short-term borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. (2) Disclosure of cash and securities segregated in compliance with regulations (such as cash deposited in a special reserve account for the exclusive benefit of customers). (3) Disclosure of all information regarding a banking or savings institution's compliance during the year with (a) federal and state laws and regulations relative to dividend restrictions and (b) federal laws and regulations relative to insider loans. (4) Disclosure of the amount of reserve balances held at various Federal Reserve Banks. Restrictions on Cash and Intercompany Funds Transfer [Line Items] Restrictions on Cash and Intercompany Funds Transfer [Line Items] RestrictionsOnCashAndIntercompanyFundsTransfer [Line Items] Reserve Balances Deposited with Federal Reserve Banks [Abstract] Reserve Balances Deposited With Federal Reserve Banks Abstract Reserve Balances Deposited With Federal Reserve Banks. Average amount of reserve balances deposited by the Firm's bank subsidiaries with various Federal Reserve Banks Deposits With Federal Reserve Banks Interest-bearing deposits in various Federal Reserve Banks. Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract] Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract] Federal Restriction on Secured Borrowings from Subsidiaries, Per Loan, Portion of Subsidiary Total Capital, Percentage Federal law imposes a restriction which prohibits the parent entity and certain of its affilliates from borrowing from banking subsidiaries unless the loans are secured in specified amounts. This concept holds the general limit for such a secured loan as a percentage of the banking subsidiary's total capital. Federal Restriction on Secured Borrowings from Subsidiaries, All Loans, Portion of Subsidiary Total Capital, Percentage Federal law imposes a restriction which prohibits the parent entity and certain of its affilliates from borrowing from banking subsidiaries unless the loans are secured in specified amounts. This concept holds the limit for the aggregate amount of all such secured loans as a percentage of the banking subsidiary's total capital. Amount Available for Dividend Distribution by Banking Subsidiaries without Prior Approval from Regulatory Agency Amount Available for Dividend Distribution without Prior Approval from Regulatory Agency Cash and Securities Segregated under Federal and Other Regulations Disclosures [Abstract] Cash and Securities Segregated under Federal and Other Regulations Disclosures [Abstract] Amount of cash that was segregated in special bank accounts for the benefit of securities and futures brokerage customers Cash Reserve Deposit Required and Made Amount of securities at fair value that were segregated in special bank accounts for the benefit of securities and futures brokerage customers Securities Reserve Deposit Required and Made Restricted Cash and Cash Equivalents Restricted Cash and Cash Equivalents Total Other Intangible Assets [Member] Intangible Assets Net Excluding Goodwill And Mortgage Servicing Rights Msrs Member Intangible Assets Net Excluding Goodwill And Mortgage Servicing Rights Msrs. Estimated future amortization expense related to credit card relationships, core deposits and other intangible assets [Abstract] Finite-Lived Intangible Assets, Future Amortization Expense [Abstract] 2011 Future Amortization Expense, Year One 2012 Future Amortization Expense, Year Two 2013 Future Amortization Expense, Year Three 2014 Future Amortization Expense, Year Four 2015 Future Amortization Expense, Year Five Level Three Liabilities As Percentage Of Total Firm Liabilities At Fair Value Level Three Liabilities As Percentage Of Total Firm Liabilities At Fair Value Level 3 liabilities as a percentage of total firm liabilities at fair value. Realized gains and losses recorded in income on AFS securities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Unrealized gains and losses recorded in OCI on AFS securities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Long-term debt Long-term Debt [Text Block] Future minimum rental payments under operating leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Total rental expense Schedule of Rent Expense [Table Text Block] Significant components of assets pledged Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] Schedule of Financing Receivable, Troubled Debt Restructurings [Table] Loans And Leases Receivable, Impaired, Reverted To Original Payment Terms Amount Loans modified in troubled debt restructurings TDRs on nonaccrual status Loans and Leases Receivable, Impaired, Troubled Debt Restructuring, Nonaccrual of Interest Loans and Leases Receivable, Impaired, Troubled Debt Restructuring, Nonaccrual of Interest. Additional commitments to lend to borrowers whose loans have been modified in TDRs Loans and Leases Receivable, Impaired, Troubled Debt Restructuring, Funded Commitment To Lend Loans and Leases Receivable, Impaired, Troubled Debt Restructuring, Funded Commitment To Lend. Schedule of Loans Receivable, Wholesale RealEstate [Table] Schedule of Loans Receivable, Wholesale Real Estate [Table] Schedule of Loans Receivable, Wholesale Real Estate [Table] Multi-family [Member] Wholesale Realestate Multi Family Member Subcatergory of wholesale real estate loans that is collateralized by multi-family properties. Commercial lessors [Member] Wholesale Realestate Commercial Lessors Member Subcatergory of wholesale real estate loans that is collateralized by commercial lessors. Commercial construction and development [Member] Wholesale Realestate Commercial Construction And Development Member Subcatergory of wholesale real estate loans that is collateralized by coommercial construction loans. Wholesale Realestate Others [Member] Wholesale Realestate Other Member Subcatergory of wholesale real estate loans that is collateralized by other real estate loans including lodging, Real estate investment trusts ("REITS"), single-family, and homebuilders. Schedule of Loans Receivable, Wholesale Real Estate [Line Items] Schedule of Loans Receivable, Wholesale Real Estate [Line Items] Wholesale Real Estate Loans Wholesale Real Estate Loans Absttract Wholesale Real Estate Loans. Criticized exposure Total Criticized Credit-rating that is used to describe the performance risk of loans that connote noncriticized, which is the subcategory of non-investment grade. Non-investment grade is classified as noncriticized ("BB+/Ba1" and B-/B3") and criticized ("CCC+"/"Caa1 and lower"). % of criticized exposure to total real estate retained loans Percentage Of Total Criticized To Total Wholesale Realestate Retained Loans Percentage of total criticized to total wholesale real estate retained loans. Criticized nonaccrual Criticized Total Nonaccrual Credit-rating that is used to describe the performance risk of loans that connote criticized nonaccrual, which is the subcategory of non-investment grade. Non-investment grade is classified as noncriticized ("BB+/Ba1" and B-/B3") and criticized ("CCC+"/"Caa1 and lower"), and criticized is further subdivided into performing and nonaccrual loans. Criticized nonaccrual loans represent the loans on which the accrual of interest is suspended. % of criticized nonaccrual to total real estate retained loans Percentage Of Nonaccrual Loans To Total Wholesale Realestate Retained Loans Percentage of nonaccrual loans to total wholesale real estate retained loans. Securities gains and losses Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] Realized gains Available-for-sale Securities, Gross Realized Gains Realized losses Available-for-sale Securities, Gross Realized Losses, Excluding Other than Temporary Impairments Net realized gains Available-for-sale Securities, Gross Realized Gain (Loss), Excluding Other than Temporary Impairments Credit losses included in securities gains Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities Net securities gains Proceeds from securities sold, as percentage of amortized cost Proceeds from securities sold, as percentage of amortized cost Proceeds from securities sold, as percentage of amortized cost. Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Noncash assets related to the consolidation of VIEs Consolidated Noncash Assets Transfer Of Financial Assets Consolidation Of Variable Interest Entities Noncash assets consolidated as a result of adopting new guidance amending the accounting for the transfer of financial assets and the consolidation of variable interest entities. Noncash liabilities related to the consolidation of VIEs Consolidated Noncash Liabilities Transfer Of Financial Assets Consolidation Of Variable Interest Entities Noncash liabilities consolidated as a result of adopting new guidance amending the accounting for the transfer of financial liabilities and the consolidation of variable interest entities. Financial Effects of Troubled Debt Restructurings [Abstract] Financial Effects of Troubled Debt Restructurings [Abstract] Schedule of Financing Receivable, Troubled Debt Restructurings, Financial Effects of Modifications [Table] Schedule of Financing Receivable, Troubled Debt Restructurings, Financial Effects of Modifications [Table] Schedule detailing information related to the financial effects of troubled debt restructurings disaggregated by class of financing receivable and portfolio segment. Financial Institutions, Government Agencies and Other Wholesale [Member] Includes loans to financial institutions, government agencies and other. Weighted-average interest rate of loans with interest rate reductions - before TDR Financing Receivable, Modifications, Pre-Modification, Weighted-Average Interest Rate Of Loans With Rate Reductions Weighted-average interest rate of financing receivables with rate reductions (before modification), that have been modified by troubled debt restructurings that occurred. Weighted-average interest rate of loans with interest rate reductions - after TDR Financing Receivable, Modifications, Post-Modification, Weighted-Average Interest Rate Of Loans With Rate Reductions Weighted-average interest rate of financing receivables with rate reductions (after modification), that have been modified by troubled debt restructurings that occurred. Weighted-average remaining term (in years) of all loans modified - before TDR Financing Receivable, Modifications, Pre-Modification, Weighted-Average Remaining Term Weighted-average remaining term of financing receivables (before modification), that have been modified by troubled debt restructurings. Weighted-average remaining term (in years) of all loans modified - after TDR Financing Receivable, Modifications, Post-Modification, Weighted-Average Remaining Term Weighted-average remaining term of financing receivables (after modification), that have been modified by troubled debt restructurings. Weighted-average remaining term (in years) of loans with term or payment extensions - before TDR Financing Receivable, Modifications, Pre-Modification, Weighted-Average Remaining Term of Financing Receivables With Term Or Payment Extensions Weighted-average remaining term of financing receivables with term or payment extensions (before modification), that have been modified by troubled debt restructurings that occurred. Financing Receivable, Modifications, Post-Modification, Weighted-Average Remaining Term of Financing Receivables With Term Or Payment Extensions Financing Receivable, Modifications, Post-Modification, Weighted-Average Remaining Term of Financing Receivables With Term Or Payment Extensions Weighted-average remaining term of financing receivables with term or payment extensions (after modification), that have been modified by troubled debt restructurings that occurred. Weighted-average remaining term (in years) of loans with term or payment extensions - after TDR Financing Receivable, Modifications, Weighted-Average Remaining Life Weighted-average remaining life (in years) of financing receivables that have been modified by troubled debt restructurings. Charge-offs recognized upon modification Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down Principal deferred Financing Receivable, Modifications, Principal Deferred Amount of principal deferred in financing receivables that have been modified by troubled debt restructurings that occurred. Principal forgiven Financing Receivable, Modifications, Principal Forgiven Amount of principal forgiven in financing receivables that have been modified by troubled debt restructurings that occurred. Principal deferred and forgiven Financing Receivable, Modifications, Principal Deferred and Forgiven Amount of principal deferred and forgiven in financing receivables that have been modified by troubled debt restructurings that occurred. Number of loans that redefaulted within one year of modification Loans that redefaulted within one year of modification Financing Receivable, Modifications, Subsequent Default Occurred, Recorded Investment Amount of outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings within the previous 12 months, for which a payment default occured. Average term extension granted on new TDRs Financing Receivable, Modifications, Average Term or Payment Extension Granted Average term or payment extension granted to financing receivables that have been modified by troubled debt restructurings. Financing Receivable, Modifications, Subsequent Default Occurred, Number of Contracts Financing Receivable, Modifications, Subsequent Default Occurred, Number of Contracts Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which a payment default occurred. Financing Receivable, Trial Modifications Successfully Converted to Permanent Modifications Financing Receivable, Trial Modifications Successfully Converted to Permanent Modifications The percentage of trial modifications that are seasoned more than six months and have been successfully converted to permanent modifications. Receivables, Policy [Policy Text Block] Schedule ot Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table] Income Tax Expense Benefit. Pro Forma [Member] This concept is used to indicate a "Pro Forma" disclosure value of the applicable concept. Components of income tax expense/(benefit) included in the Consolidated Statements of Income Components of Income Tax Expense (Benefit), Continuing Operations [Abstract] Current income tax expense Current Income Tax Expense (Benefit) [Abstract] U.S. federal Current Federal Tax Expense (Benefit) Non-U.S. Current Foreign Tax Expense (Benefit) U.S. state and local Current State and Local Tax Expense (Benefit) Total current income tax expense Current Income Tax Expense (Benefit) Deferred income tax expense/ (benefit) Deferred Income Tax Expense (Benefit) [Abstract] U.S. federal Deferred Federal Income Tax Expense (Benefit) Non-U.S. Deferred Foreign Income Tax Expense (Benefit) U.S. state and local Deferred State and Local Income Tax Expense (Benefit) Total deferred income tax expense/(benefit) Total income tax expense/ (benefit) before extraordinary gain Components of income tax expense/(benefit), supplemental information Components of Income Tax Expense (Benefits), Supplemental Information [Abstract] Components of Income Tax Expense (Benefits), Supplemental Information [Abstract] Tax Adjustments, Settlements, and Unusual Provisions Tax Adjustments, Settlements, and Unusual Provisions Income Tax Effects Allocated Directly to Equity Income Tax Effects Allocated Directly to Equity Pretax Undistributed Foreign Earnings Of Subsidiaries Pretax Undistributed Foreign Earnings Of Subsidiaries The amount of pretax earnings during the period attributable to undistributed earnings of non-U.S subsidiaries and other recognized entities in countries outside the country of domicile which will increase future taxable income when such earnings are distributed into the country of domicile. Cumulative Pretax Undistributed Foreign Earnings Of Subsidiaries Cumulative Pretax Undistributed Foreign Earnings Of Subsidiaries The cumulative amount as of the balance sheet date of pretax earnings attributable to undistributed earnings of non-U.S. subsidiaries and other recognized entities in countries outside the country of domicile which will increase future taxable income when such earnings are distributed into the country of domicile. Deferred Tax Liabilities, Undistributed Foreign Earnings Tax expense applicable to securities gains and losses Tax Expense Benefit Securities Gains And Losses Tax expense (benefit) applicable to securities gains and losses. Total credit derivatives Credit default swaps Other credit derivatives Credit-related notes Restatement Adjustment [Member] Restatement Adjustment [Member] Accounting Standards Update 2010-11 [Member] Accounting Standards Update 2010-11 [Member] Retained Earnings [Member] Total credit derivatives and credit-related notes Total credit derivatives and credit related notes Abstract Total credit derivatives and credit-related notes. Protection sold Protection purchased with identical underlyings Net protection (sold)/purchased Other protection purchased Credit Derivatives - supplemental information Summary of Credit Derivatives [Abstract] Tranche Credit Default Swap Realized Credit Loss Example Protection Tranche Credit Default Swap Realized Credit Loss Protection Tranche Credit Default Swap Realized Credit Loss Protection Tranche Credit Default Swap Example Portfolio of Exposure Tranche Credit Default Swap Portfolio of Exposure Tranche Credit Default Swap Portfolio of Exposure Summary of loan sale activities [Abstract] Summary Of Loan Sale Activities Abstract Summary Of Loan Sale Activities. Carrying value of loans sold Mortgage Loans on Real Estate, Cost of Mortgages Sold Proceeds received from loan sales as cash Cash Proceeds From Sale Of Mortgage Loans Cash proceeds received from the sale of originated and purchased mortgage loans. Proceeds received from loan sales as securities Securities Proceeds From Sale Of Mortgage Loans Securities proeceeds received from the sale of originated and purchased mortgage loans. Total proceeds received from loan sales Proceeds From Sale Of Mortgage Loans Proceeds received from the sale of originated and purchased mortgage loans. Gains on loan sales Gain (Loss) on Sale of Mortgage Loans Loans Repurchased Or Loans With The Option To Repurchase Loans Repurchased Or Loans With The Option To Repurchase Loans repurchased or loans with the option to repurchase. Real Estate Acquired Through Foreclosure Real Estate Acquired Through Foreclosure NONINTEREST REVENUE Noninterest Revenue [Text Block] Discloses components of investment banking fees, principal transactions and asset management, administration and commissions. Also provides a qualitative description of the various other noninterest revenue items presented on the face of the income statement. Credit Quality of Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Geographic Region [Table] Credit Quality of Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Geographic Region [Table] Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Geographic Region [Table] Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Geographic Region [Line Items] Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by Geographic Region [Line Items] Other Borrowed Funds (Details) [Abstract] Other Borrowed Funds. Secured Debt [Member] Other Borrowed Funds [Abstract] Advances from Federal Home Loan Banks Federal Home Loan Bank, Advances, Short-term Other borrowed funds Total other borrowed funds Total other borrowed funds Total other borrowed funds, which includes: (1) Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer. (2) Federal home loan bank borrowings. Other Borrowed Funds (Numeric) [Abstract] Other Borrowed Funds Numeric Abstract Other Borrowed Funds Numeric. Advances from Federal Home Loan Banks reclassified to long-term debt Federal Home Loan Bank Advances and Other Short-term Borrowings, Fair Value Disclosure Other borrowed funds, fair value Collateral used to secure Other Borrowed Funds Other Borrowed Funds Collateral Collateral used to secure Oher Borrowed Funds. Other borrowed funds, at fair value Net Investment Hedge Derivative Liabilities At Fair Value, Excluded From Derivative Fair Value of Derivative Net Derivative receivables and payables Derivative Receivables and Payables [Abstract] Derivative receivables and payables mark to market Abstract. SECURITIES Securities [Text Block] This item represents the entire disclosure related to Investments in Certain Debt and Equity Securities which include all debt and equity securities classified as (1) available-for-sale securities and (2) held-to-maturity securities. This is includes securities (other than those equity securities accounted for under the equity or cost methods of accounting) with readily determinable fair values. A debt security represents a creditor relationship with an enterprise that is in the form of a security. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities. Schedule Of Mortgage Fees And Related Income [Table] Schedule Of Mortgage Fees And Related Income [Table] Schedule Of RFS Mortgage Fees And Related Income Table Schedule Of Mortgage Fees And Related Income [Line Items] Schedule Of Mortgage Fees And Related Income [Line Items] -- None. No documentation exists for this element. -- Components of mortgage fees and related income [Abstract] Components of mortgage fees and related income Abstract Components of mortgage fees and related income Abstract. RFS mortgage fees and related income Fees And Commissions Mortgage Banking And Related Components Abstract Fees And Commissions Mortgage Banking And Related Components. Net production revenue: Net production revenue Abstract Net production revenue. Production revenue Mortgage Production Revenue Excluding Repurchase Losses Mortgage Production Revenue Excluding Repurchase Losses. Repurchase Losses Repurchase Losses Represents losses associated with repurchase liabilities related to indemnifications for breaches of representations and warranties in loan sale and securitization agreements. Net production revenue Mortgage Production Revenue Mortgage production revenue. Net mortgage servicing revenue Net Mortgage Servicing Revenue Abstract Net Mortgage Servicing Revenue. Operating revenue: Operating Revenue Abstract Operating Revenue Abstract. Loan servicing revenue Operating Revenue, Servicing Fees, Net, Real Estate Mortgages Income from servicing real estate mortgages held by others. Also include any premiums received in lieu of regular servicing fees on such loans only as earned over the life of the loans. May also be net of any related impairment of fair value of capitalized service costs. Changes in MSR asset fair value due to modeled servicing portfolio runoff Operating Revenue, Real Estate Mortgages, Changes in Fair Value of Mortgage Servicing Rights, Modeled Servicing Portfolio Runoff Operating revenue related to real estate mortgage servicing activity, representing the net increase or decrease in fair value as a result of modeled servicing portfolio runoff used to calculate the fair value of servicing assets. Total operating revenue Operating Revenue, Net, Real Estate Mortgages Total net operating revenue related to real estate mortgage servicing activity. Risk management: Risk management Abstract Risk management Abstract. Changes in MSR asset fair value due to market interest rates Risk Management Revenue, Changes in Fair Value of Mortgage Servicing Rights, Changes in Market Interest Rates Risk management revenue related to real estate mortgage servicing activity, representing the net increase or decrease in fair value as a result of changes in market interest rates used to calculate the fair value of servicing assets. Other changes in MSR asset fair value due to inputs or assumptions in model Risk Management Revenue, Changes in Fair Value of Mortgage Servicing Rights, Other Changes in Fair Value Risk management revenue related to real estate mortgage servicing activity, representing the net increase or decrease in fair value as a result of other changes in the inputs, assumptions, or model used to calculate the fair value of servicing assets, representing the aggregate impact of other model inputs and assumptions not otherwise specified. Derivative valuation adjustments and other Total risk management Risk Management Revenue, Net, Real Estate Mortgages Total net risk management revenue related to real estate mortgage servicing activity. Total RFS net mortgage servicing revenue Servicing Revenue, Net, Real Estate Mortgages Total net servicing revenue related to real estate mortgage activity. All other Fees and Commissions, Mortgage Banking and Related, All Other Fees, commissions other income related to mortgage banking activity not categorized elsewhere. Mortgage fees and related income Cash Flow Hedging [Member] Cash Flow Hedging [Member] Cash flow hedge gains and losses [Abstract] Cash flow hedge gains and losses Abstract Cash flow hedge gains and losses. Derivatives - effective portion reclassified from AOCI to income Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Hedge ineffectiveness recorded directly in income Total income statement impact Effective portion recorded in OCI Total change in OCI for period Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Loss on discontinuation of cash flow hedge due to forecasted wholesale deposits probable of not occurring Loss on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring Recognition of losses related to cash flow hedges in Income Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Maximum length of time hedged in forecasted transactions Maximum Length of Time Hedged in Cash Flow Hedge FAIR VALUE MEASUREMENT Fair Value Disclosures [Text Block] Credit risk concentrations (Tables) [Abstract] Credit risk concentrations. Concentrations of Credit Exposure Table Concentration Of Credit Exposure Table [Text Block] A table presenting concentrations of both on-balance sheet and off-balance sheet credit exposure. Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Parties to Contractual Arrangement [Axis] Parties to Contractual Arrangement [Domain] Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Future minimum rental payments under operating leases Operating Leases, Future Minimum Payments Due [Abstract] 2012 Operating Leases, Future Minimum Payments Due, Current 2013 Operating Leases, Future Minimum Payments, Due in Two Years 2014 Operating Leases, Future Minimum Payments, Due in Three Years 2015 Operating Leases, Future Minimum Payments, Due in Four Years 2016 Operating Leases, Future Minimum Payments, Due in Five Years After 2016 Operating Leases, Future Minimum Payments, Due Thereafter Total minimum payments required Operating Leases, Future Minimum Payments Due Less: Sublease rentals under noncancelable subleases Operating Leases, Future Minimum Payments Due, Future Minimum Sublease Rentals Net minimum payment required Operating Leases Future Minimum Payments Due Net Of Future Minimum Sublease Rentals The total of future contractually required payments on leases defined as operating, net of contractually required future rental payments receivable on noncancelable subleasing arrangements. Total rental expense Operating Leases, Rent Expense, Net [Abstract] Gross rental expense Operating Leases, Rent Expense, Minimum Rentals Sublease rental income Operating Leases, Rent Expense, Sublease Rentals Net rental expense Operating Leases, Rent Expense, Net Effect of a one-percentage-point change in the assumed health care cost trend rate on the Firms total service and interest cost and accumulated postretirement benefit obligation Defined Benefit Plan, Effect of One-Percentage Point Change in Assumed Health Care Cost Trend Rates [Abstract] Effect on total service and interest cost, 1-Percentage-point increase Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components Effect on total service and interest cost, 1-Percentage-point decrease Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components Effect on accumulated postretirement benefit obligation, 1-Percentage-point increase Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation Effect on accumulated postretirement benefit obligation, 1-Percentage-point decrease Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation Projected Increase In US Defined Benefit Pension And OPEB Plan Expense Resulting From Decreased Discount Rates For Benefit Obligations Projected Increase In US Defined Benefit Pension And OPEB Plan Expense Resulting From Decreased Discount Rates For Benefit Obligations Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets In Next Fiscal Year Defined Benefit Plan, Health Care Cost Trend Rate Assumed for Next Fiscal Year, Used to Determine Benefit Obligations Defined Benefit Plans Assumptions Used Calculating Interest Crediting Rate Defined Benefit Plans Assumptions Used Calculating Interest Crediting Rate Defined Benefit Plan, Interest Crediting Rate Assumed for Next Fiscal Year Defined Benefit Plan, Interest Crediting Rate Assumed for Next Fiscal Year The assumed interest crediting trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). Defined Benefit Plan, Interest Crediting Rate Schedule of Consumer Loans Excluding Credit Card Portfolio Segment by Class [Table] Schedule of Consumer Loans Excluding Credit Card Portfolio Segment by Class [Table] Prime Mortgages, including option ARMs [Member] Student And Other Loans [Member] PCI Home Equity [Member] PCI Prime Mortgage [Member] PCI Subprime Mortgage [Member] PCI Option ARMs [Member] Consumer loans by class, excluding the credit card loan portfolio segment Consumer loans by class, excluding the credit card loan portfolio segment [Abstract] Consumer loans by class, excluding the credit card loan portfolio segment. Rollforward of Loans Modified in TDRs [Abstract] Rollforward of Loans Modified in TDRs [Abstract] Schedule of Financing Receivable, Troubled Debt Restructurings Rollforward [Table] Schedule of Financing Receivable, Troubled Debt Restructurings Rollforward [Table] Schedule detailing rollforward information related to troubled debt restructurings, including new troubled debt restructurings, charge-offs, foreclosures and other liquidations and sales, payments, and other disaggregated by class of financing receivable and portfolio segment. Financing Receivable, Modification Status [Axis] Financing Receivable, Modification [Domain] Trial Modification [Member] Loans Modified in TDRs [Roll Forward] Loans Modified in TDRs [Roll Forward] Beginning balance of TDRs New TDRs Increases to Existing TDRs Financing Receivables, Impaired, Troubled Debt Restructuring, Increases to Existing Troubled Debt Restructurings Reflects the amount of increases related to existing troubled debt restructuring. Charge-offs post-modification Financing Receivables, Impaired, Troubled Debt Restructuring, Charge-offs Post-Modification Reflects the amount of the charge-offs related to a troubled debt restructuring taken subsequent to modification. Foreclosures and other liquidations Financing Receivables, Impaired, Troubled Debt Restructuring, Foreclosures and Other Liquidations Reflects the amount of foreclosures and other liquidation activity (e.g., short sales) related to troubled debt restructurings. Principal payments, sales and other Financing Receivables, Impaired, Troubled Debt Restructuring, Principal Payments, Sales, and Other Reflects the amount of principal payments, sales and other activity related to a troubled debt restructuring (which may include performing loans restructured at market rates that are no longer reported as troubled debt restructurings). Ending balance of TDRs Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Asset backed security [Member] Other available-for-sale securities [Member] Other Available For Sale Securities [Member] Other Available For Sale Securities Member. Total mortgage-backed securities [Member] U.S. government agencies [Member] Residential - nonagency [Member] Obligations of U.S. states and municipalities [Member] Non-U.S. government debt securities [Member] Corporate debt securities [Member] Loans [Member] Trading Loans [Member] Loans carried as trading assets that are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time). Unrealized holding gains and losses for trading loans are included in earnings. Asset-backed securities [Member] Asset Backed Securities Trading Account [Member] This category includes information about securities that are primarily serviced by the cash flows of a discrete pool of receivables or other financial assets (such as mortgage loans or credit-card receivables) and are bought and held principally for the purpose of selling them in the near term (thus held for only a short period of time). Unrealized holding gains and losses for trading account asset-based securities are included in earnings. Total net derivative receivables [Member] Loans [Member] Loans Receivable, Not-for-Trading [Member] Loans Receivable, Not-for-Trading [Member] Mortgage servicing rights [Member] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservabe Input Reconciliation [Domain] Deposits [Member] Deposits [Member] Other borrowed funds [Member] Borrowings [Member] Trading liabilities - Debt and equity instruments [Member] Accounts payable and other liabilities [Member] Accounts payable and other liabilities [Member] Accounts payable and other liabilities. Beneficial interests issued by consolidated VIEs [Member] Beneficial interests issued by consolidated variable interest entities [Member] Beneficial interests issued by consolidated variable interest entities. Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Changes in level 3 recurring fair value measurements [Abstract] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Assets Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Total realized/ unrealized gains/(losses) Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis,Asset, Issues Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Purchases, issuances, settlements, net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issuances, Settlements Transfers into and/or out of level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Fair Value, Ending Balance Change in unrealized gains/(losses) related to financial instruments held Fair Value, Measurement with Unobservable Inputs, Recurring Basis, Asset, Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held The change during the period in unrealized gains (losses) relating to financial assets measured at fair value on a recurring basis using unobservable inputs still held at the reporting date. Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value Total realized/unrealized (gains)/losses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issues Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Purchases, issuances, settlements, net Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, Sales, Issuances, Settlements Transfers into and/or out of level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net Ending balance Change in unrealized (gains)/losses related to financial instruments held Fair Value, Measurement with Unobservable Inputs, Recurring Basis, Liabilities, Change in Unrealized Gains (Losses) Related to Financial Instruments Still Held The change during the period in unrealized gains (losses) relating to financial liabilities measured at fair value on a recurring basis using unobservable inputs still held at the reporting date. Defined Benefit Plan by Plan Asset Categories [Axis] Hedge Funds [Member] COLI [Member] Defined Benefit Postretirement Life Insurance [Member] Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Realized gains/(losses) Defined Benefit Plan, Actual Return on Plan Assets Sold During Period Unrealized gains/(losses) Defined Benefit Plan, Actual Return on Plan Assets Still Held Purchases, sales and settlements, net Defined Benefit Plan, Purchases, Sales, and Settlements Transfers in and/or out of level 3 Defined Benefit Plan, Transfers Between Measurement Levels Comprehensive Income Loss [Table] Comprehensive Income Loss [Table] -- None. No documentation exists for this element. -- Adjustments for New Accounting Pronouncement [Member] Total other comprehensive income/(loss) Unrealized gains/(losses) on AFS securities Accumulated Net Unrealized Investment Gain (Loss) [Member] Translation adjustments Accumulated Translation Adjustment [Member] Cash flow hedges Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] Net loss and prior service costs/(credit) of defined benefit pension and OPEB plans Accumulated Defined Benefit Plans Adjustment [Member] Comprehensive Income Loss [Line Items] Comprehensive Income Loss [Line Items] -- None. No documentation exists for this element. -- Accumulated Other Comprehensive Income (Loss) [Roll Forward] Accumulated Other Comprehensive Income (Loss) [Roll Forward] Beginning Balance Net change Ending Balance Accumulated other comprehensive income (loss) - supplemental information Accumulated Other Comprehensive Income (Loss) - Supplemental Information [Abstract] Accumulated Other Comprehensive Income Loss. After-tax unrealized losses not related to credit on debt securities Accumulated Other Comprehensive Income (Loss), Other than Temporary Impairment, Not Credit Loss, Net of Tax, Available-for-sale, Debt Securities Changes of the components of Accumulated Other Comprehensive Income (Loss) Before And After Tax Changes Of Components Of Accumulated Other Comprehensive Income Loss Tables Abstract Schedule which may include the following: 1) the gross amount before-tax, amount of income tax expense or benefit, and the after-tax amount allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Components of comprehensive income include: (1) foreign currency translation adjustments; (2) gains and losses on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (3) gains and losses on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (4) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (5) unrealized holding gains and losses on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (6) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (7) the net gain or loss and net prior service cost or credit for pension plans and other postretirement benefit plans. Net unrealized gains/(losses) arising during the period before tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax Net unrealized gains/(losses) arising during the period tax effect Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Net unrealized gains/(losses) arising during the period after tax Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax Reclassification adjustment for realized (gains)/losses included in net income before tax Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax Reclassification adjustment for realized (gains)/losses included in net income tax effect Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Tax Reclassification adjustment for realized (gains)/losses included in net income after tax Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, Net of Tax Net change before tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax Net change tax effect Other Comprehensive Income (Loss), Available-for-sale Securities, Tax Net change after tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Translation before tax Other Comprehensive Income Foreign Currency Translation Gain Loss Before Tax Pre tax change in the balance sheet adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity for the period being reported. If an entity's functional currency is a foreign currency, translation adjustments result from the process of translating that entity's financial statements into the reporting currency. Includes gain (loss) on foreign currency forward exchange contracts. Does not include the effect of taxes. Translation tax effect Other Comprehensive Income (Loss), Foreign Currency Translation Gain (Loss) Arising During Period, Tax Translation after tax Other Comprehensive Income Foreign Currency Translation Gain Loss After Tax Change in the balance sheet adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity for the period being reported, net of tax. If an entity's functional currency is a foreign currency, translation adjustments result from the process of translating that entity's financial statements into the reporting currency. Includes gain (loss) on foreign currency forward exchange contracts. Hedges before tax Other Comprehensive Income Foreign Currency Hedges Gain Loss Before Tax Pretax change in the balance sheet adjustment that results from foreign currency transactions designated and qualifying as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes the gain or loss on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain or loss under FAS 52 and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation. Does not include the effect of taxes. Hedges tax effect Other Comprehensive Income Foreign Currency Hedges Gain Loss Arising During Period Tax Tax effect on the change in the balance sheet adjustment that results from foreign currency transactions designated and qualifying as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. Includes tax effect on the change in the balance sheet adjustment that results from the gain or loss on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain or loss under FAS 52 and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation. Hedges after tax Other Comprehensive Income Foreign Currency Hedges Gain Loss After Tax After-tax effect of change in the balance sheet adjustment that results from foreign currency transactions designated and qualifying as hedges of net investment in a foreign entity and intercompany foreign currency transactions that are of a long-term nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements. the change in the balance sheet includes adjustments on a derivative instrument or nonderivative financial instrument that may give rise to a foreign currency transaction gain or loss under FAS 52 and that have been designated and have qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation. Net change before tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Net change tax effect Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Net change after tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Net unrealized gains/(losses) arising during the period before tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Net unrealized gains/(losses) arising during the period tax effect Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax Net unrealized gains/(losses) arising during the period after tax Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax Reclassification adjustment for realized (gains)/losses included in net income before tax Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, before Tax Reclassification adjustment for realized (gains)/losses included in net income tax effect Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Tax Reclassification adjustment for realized (gains)/losses included in net income after tax Other Comprehensive Income (Loss), Reclassification Adjustment on Derivatives Included in Net Income, Net of Tax Net change before tax Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before Tax Net change tax effect Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect Net change after tax Net gains/(losses) and prior service credits arising during the period before tax Other Comprehensive Income, Defined Benefit Plan, Net Unamortized Gain (Loss) And Net Prior Service Cost (Credit) Arising During Period, Before Tax (1) Pretax change in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan, that has not been recognized in net periodic benefit cost ; and (2) the pretax cost (credit) of benefit changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that occurred during the period. The cost has not yet been recognized in net periodic benefit cost. A plan amendment includes provisions that grant increased (decreased) benefits based on services rendered in prior periods. Net gains/(losses) and prior service credits arising during the period tax effect Other Comprehensive Income, Defined Benefit Plan, Net Unamortized Gain (Loss) And Net Prior Service Costs Arising During Period, Tax (1) Tax effect on the accumulated change in the value of either the projected benefit obligation or the plans assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost pursuant to FAS 87 and 106; and (2) the tax effect on the cost of benefit improvement resulting from a plan amendment that occurred during the period. The cost has not been recognized in net periodic benefit cost pursuant to FAS 87 and 106. A plan amendment includes provisions that grant increased benefits based on services rendered in prior periods. Net gains/(losses) and prior service credits arising during the period after tax Other Comprehensive Income, Defined Benefit Plan, Net Unamortized Gain (Loss) And Net Prior Service Costs (Credit) Arising During Period, Net of Tax (1) The accumulated change in the value of either the projected benefit obligation or the plans assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost pursuant to FAS 87 and 106, after tax; and (2) the cost of benefit improvement resulting from a plan amendment that occurred during the period, after tax. The cost has not been recognized in net periodic benefit cost pursuant to FAS 87 and 106. A plan amendment includes provisions that grant increased benefits based on services rendered in prior periods. Reclassification adjustment for net loss and prior service credits included in net income before tax Other Comprehensive Income Reclassification of Defined Benefit Plan Net Gain Loss and Prior Service Credits Recognized in Net Periodic Benefit Cost before Tax The net gain or loss and prior service credits previously recognized in other comprehensive income that is a reclassification adjustment of other comprehensive income as a result of being recognized as a component of net periodic benefit cost for the period, before tax. Reclassification adjustment for net loss and prior service credits included in net income tax effect Other Comprehensive Income Reclassification Of Defined Benefit Plan Net Gain Loss And Prior Service Credits Recognized In Net Periodic Benefit Cost Tax For each annual statement of income presented, (1) the tax effect of the net gain or loss and prior service credits recognized in other comprehensive income that is a reclassification adjustment of other comprehensive income as a result of being recognized as a component of net periodic benefit cost for the period; and (2) tax effect on the cost of benefit improvement resulting from a plan amendment that occurred during the period. The cost has not been recognized in net periodic benefit cost pursuant to FAS 87 and 106. A plan amendment includes provisions that grant increased benefits based on services rendered in prior periods. Reclassification adjustment for net loss and prior service credits included in net income after tax Other Comprehensive Income Reclassification Of Defined Benefit Plan Net Gain Loss And Prior Service Credits Recognized In Net Periodic Benefit Cost After Tax The adjustment out of other comprehensive income for actuarial gains (losses) and prior service costs recognized as a component of net periodic benefit cost during the period, after tax. Net change before tax Net change tax effect Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax Net change after tax Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax Total Other comprehensive income/(loss) before tax Other Comprehensive Income (Loss), before Tax Total Other comprehensive income/(loss) tax effect Other Comprehensive Income (Loss), Tax Other Liabilities Disclosure Table [Text Block] Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Credit Quality of Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by FICO Score, by LTV Ratios [Table] Credit Quality of Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by FICO Score, by LTV Ratios [Table] Credit Quality of Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by FICO Score, by LTV Ratios [Table] Financial Receivable by Current estimated LTV ratios [Axis] Financial Receivable by Current estimated Ltv ratios. Financial Receivable by Current estimated LTV ratios [Domain] Financial Receivable by Current estimated Ltv ratios. Current Estimated LTV Greater Than 125% [Member] Loans related to current estimated LTV ratio greater than 125%. Current Estimated Ltv Between 101% And 125% [Member] Loans related to current estimated LTV ratio between 101% and 125%. Current Estimated LTV Between 80% To 100% [Member] Loans related to current estimated LTV ratio between 80% and 100%. Current Estimated LTV Less Than 80% [Member] Loans related to current estimated LTV ratio less than 80%. Financial Receivable by Refreshed FICO scores [Axis] Financial Receivable by Refreshed Fico scores Financial Receivable by Refreshed FICO scores [Domain] Financial Receivable by Refreshed Fico scores. Refreshed FICO Scores Equal to or greater than 660 [Member] Loans related to refreshed FICO score that is equal or greater than 660. Refreshed FICO Scores Less than 660 [Member] Loans related to refreshed FICO score that is less than 660. Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by FICO Score, by LTV Ratio [Line Items] Consumer Loans Excluding Credit Card Portfolio Segment, by Class, by FICO Score, by LTV Ratio [Line Items] Loans guaranteed by the U.S. government Loans guaranteed by the U.S. government The gross carrying amount of loan held for investment, that is guaranteed by the U.S. government. Retail Financial and Card Services [Member] The combination of Retail Financial and Card Services segments. Credit card Chase Issuance Trust [Member] Chase Issuance Trust [Member] Chase Issuance Trust, credit card securitization trust. Mortgage & other Mortgage Securitization and Other Variable Interest Entities [Member] The combination of entities of mortgage securitization and variable interest entity program types not separately specified. Residential mortgage securitization Impact of new guidance - adjustment Impact of new accounting guidance for consolidation of VIEs New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Liabilities Stockholders' equity Consolidation accounting guidance for VIEs - supplemental information Consolidation Accounting Guidance [Abstract] Consolidation Accounting Guidance [Abstract] Decrease to accumulated other comprehensive income as a result of reversal of fair value adjustments taken on retained AFS New Accounting Pronouncementor Change In Accounting Principle Cumulative Effect Of Change On Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax Amount of the cumulative effect of the change in accounting principle on accumlated other comprehensive income related to available-for-sale securities in the statement of financial position. Increase Decrease In Risk Weighted Assets For Regulatory Capital Purposes Increase Decrease In Risk Weighted Assets For Regulatory Capital Purposes Increase decrease in risk weighted assets for regulatory capital purposes. Credit Quality of Residential Real Estate - PCI Loans, by Class, by FICO and LTV [Table] Credit Quality of Residential Real Estate - PCI Loans, by Class, by FICO and LTV [Table] Credit Quality of Residential Real Estate - PCI Loans, by Class, by FICO and LTV [Table] Residential RealEstate - PCI Loans, by Class, by FICO and LTV [Line Items] Residential RealEstate - PCI Loans, by Class, by FICO and LTV [Line Items] International Operations (Details) [Abstract] International Operations. Entity-Wide Disclosure on Geographic Areas, Revenue from External Customers Attributed to Individual Foreign Countries [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Total International Segment Geographical, Groups of Countries, Group Six [Member] Segment Geographical, Groups of Countries, Group Six. Specified as International. Europe/Middle East and Africa [Member] Segment, Geographical, Groups of Countries, Group One [Member] Asia and Pacific [Member] Segment, Geographical, Groups of Countries, Group Two [Member] Latin America and the Caribbean [Member] Segment, Geographical, Groups of Countries, Group Three [Member] A third specified group of foreign countries about which segment information is provided by the entity. Other group of countries [Member] Other group of countries [Member] A fourth specified group of foreign countries about which segment information is provided by the entity. North America Segment Geographical Groups of Countries Group Five [Member] A fifth specified group of foreign countries about which segment information is provided by the entity. Specified as North America, Entity-Wide Information by Geographic Areas Revenues from External Customers and Long-Lived Assets [Line Items] Expense Noninterest Expense And Provision For Loan Lease And Other Losses Total aggregate amount of all noninterest expense and the sum of the periodic provision charged to earnings, based on an assessment of uncollectibility from the counterparty on account of loan, lease or other credit losses, to reduce these accounts to the amount that approximates their net realizable value. Total assets Entity Wide Disclosure On Geographic Areas Total Assets In Country Or Group Of Countries Amount Amount of average assets in a country or group of countries. Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Debt, Policy [Policy Text Block] FAIR VALUE OPTION Fair Value, Option [Text Block] Top of minimum range Top of Minimum Range [Member] Top of Minimum Range [Member] Credit Card Receivable [Member] Credit Card Receivable [Member] Option Arms Securitized assets by category [Domain] Senior securities Senior Securities [Member] Senior Securities [Member] Subordinated securities Subordinated Securities [Member] Subordinated Securities [Member] Investment Grade A or Better Internal Credit Rating, Investment Grade A or Better [Member] Investment Grade, equivalent to S&P A or better. Firm-sponsored credit card securitization trusts Assets and liabilities of the Firm sponsored credit card securitization trusts Abstract Assets and liabilities of the Firm-sponsored credit card securitization trusts. Average undivided interest in VIE principal receivables Average undivided interest in principal receivables, Percentage The percentage of average undivided interest in principal receivables owned by credit card trusts that are sponsored by the entity. Interest in sponsored credit card securitization trusts Transferor's Interests in Transferred Financial Assets, Fair Value Variable Interest Entity, Consolidated Assets Firm-sponsored mortgage and other consumer securitization trusts Firm sponsored mortgage and other consumer securitization trusts Abstract Firm-sponsored mortgage and other consumer securitization trusts. Assets held in nonconsolidated securitization VIEs with continuing involvement Senior Securities Purchased, Excluded from Interests Continued To Be Held By Transferor, Fair Value Senior Securities Purchased, Excluded from Interests Continued To Be Held By Transferor, Fair Value Senior securities purchased in connection with IB secondary market making activities. These securities are excluded from entity interest in securitized assets in nonconsolidated VIEs. Subordinated Securities Purchased, Excluded From Interests Continued To Be Held by Transferor, Fair Value Subordinated Securities Purchased, Excluded From Interests Continued To Be Held by Transferor, Fair Value Subordinated securities purchased in connection with IB secondary market making Activities. These securities are excluded from entity interest in securitized assets in nonconsolidated VIEs. Percentage of the Firm's retained securitization interests risk-rated 'A' or better, at fair value Percent Of Retained Securitization Interests, Fair Value, Rated A Or Better Percent of retained securitization interests rated A or better. Pension and Other Postretirement Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table] Deferred Compensation Arrangement with Individual, Share-based Payments, by Title of Individual [Axis] Title of Individual with Relationship to Entity [Domain] Chief Executive Officer [Member] Stock Appreciation Rights (SARs) [Member] Long-Term Incentive Plan Deferred Compensation, Share-based Payments [Member] Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] Employee stock-based awards general disclosures Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Shares of common stock available for issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Employee stock-based awards - vesting Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights Employee stock-based awards - vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Employee stock-based award - expiration date Share-based Compensation Arrangement by Share-based Payment Award, Expiration Date Employee stock-based awards - expiration period Share-based Compensation Arrangement by Share-based Payment Award, Award Expiration Period The period of time per the award agreement after which the award expires. Employee stock-based awards - terms of award Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance Deferred Compensation Arrangement with Individual, Maximum Contractual Term Deferred Compensation Arrangement with Individual, Maximum Contractual Term Deferred Compensation Arrangement with Individual, Exercise Price Deferred Compensation Arrangement with Individual, Exercise Price Deferred Compensation Arrangement with Individual, Requisite Service Period Deferred Compensation Arrangement with Individual, Requisite Service Period Total noncash compensation expense related to employee stock-based incentive plans Deferred Compensation Arrangement with Individual, Compensation Expense Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Washington Mutual, Inc. bankruptcy [Member] Washington Mutual, Inc. bankruptcy [Member] Litigation related to numerous disputes amoung Washington Mutual, Inc., JPMorgan Chase and the Federal Deposit Insurance Corporate, as well as significant creditor groups. Mortgage Foreclosure Investigations and Litigation [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Subsequent Event, Amount Subsequent Event, Amount Litigation Settlement, Gross Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Document and Entity Information Document and Entity Information [Abstract] Document And Entity Information. Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Current Fiscal Year End Date Current Fiscal Year End Date Entity Well Known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Public Float Entity Public Float Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Other assets Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Trading assets Securities Securities [Member] Total debt and equity financial instruments classified as (1) available-for-sale securities and (2) held-to-maturity securities. This item represents investments in debt and equity securities which are not categorized as trading. (1) Available-for-sale securities are reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale Security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain or loss of an Available-for-sale Security that is designated as being hedged in a fair value hedge shall be recognized in earnings during the period of the hedge, as should other than temporary declines in fair value below costs basis. (2) Investments in debt securities which are categorized as held-to-maturity are measured at amortized cost (carrying value). The held-to-maturity category is for those securities that the Entity has the positive intent and ability to hold until maturity. Assets Pledged Financial Instruments Owned and Pledged as Collateral, Amount Eligible to be Repledged by Counterparty Accounts Payable and Other Liabilities Less Brokerage Payables Carrying value as of the balance sheet date of obligations incurred and payable. pertaining to goods and services received from vendors; and for costs that are statutory in nature, are incurred in connection with contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered (excluding Brokerage Payables). Examples include taxes, interest, rent, salaries and benefits, and utilities. Also, includes carrying amount as of the balance sheet date of liabilities not otherwise specified in the taxonomy. Also serves as the sum of liabilities not individually reported in the financial statements, or not separately disclosed in notes. Preferred stock, par value (actual number) Preferred stock, shares authorized (actual number) Preferred stock, shares issued (actual number) Common stock, par value (actual number) Common stock, shares authorized (actual number) Common stock, shares issued (actual number) Shares held in RSU Trust, shares (actual number) Common Stock Held In Restricted Stock Unit Trust Shares Number of common stock shares held in an irrevocable grantor trust (the "RSU Trust") to be used for settlement of stock awards granted to selected employees and certain key executives under a restricted stock unit plan. Treasury stock, shares (actual number) Common stock, dividends, per share Common Stock, Dividends, Per Share, Declared