Impact on fair value of a 100 basis point 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. Unrealized gains/(losses) on investment securities AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] Litigation Legal Matters and Contingencies [Text Block] Series V Series V Preferred Stock [Member] Series V Preferred Stock. Total Hedged Liability, Active and Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Hedged Liability, Active and Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Total risk management Risk Management Revenue, Net, Real Estate Mortgages Total net risk management revenue related to real estate mortgage servicing activity. Securities Financing Transaction [Table] Securities Financing Transaction [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Fixed payment plan period Loan Modification Program, Fixed Payment Plan Period The duration period for placing customers on a fixed payment plan as a result of a credit card loan modification program. Components of 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. Portfolio-based Financing Receivable, Collectively Evaluated for Impairment Troubled debt restructuring on financing receivables, financial effects of modifications and re-defaults Troubled Debt Restructurings on Financing Receivables, Financial Effects of Modifications and Redefaults [Table Text Block] Tabular disclosure of financing receivables and troubled debt restructurings, with detail related to the financial effects of modifications and redefaults. Due after 10 years Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years Derivative receivables where an appropriate legal opinion has not been either sought or obtained Derivative Asset, Not Subject to Master Netting Arrangement Proceeds from sales and securitizations of loans held-for-investment Proceeds from Sale of Finance Receivables Information on assets and liabilities related to VIEs that are consolidated by the Firm Information On Assets And Liabilities Related To V I Es That Are Consolidated By Firm [Table 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. Risk participations for 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 participations for standby letters of credit and other financial guarantees. Option pricing Valuation Technique, Option Pricing Model [Member] Net derivative payables Total derivative payables recognized on the Consolidated balance sheets, Net derivative payables Derivative Liability Loss contingency disqualification period Loss Contingency, Disqualification Period Loss Contingency, Disqualification Period Common stock ($1.00 and $0.90 per share and $2.00 and $1.80 per share, respectively) Dividends, Common Stock, Cash Performing loans, ninety days or more past due Fair Value, Option, Loans Held as Assets, Aggregate Difference Security Exchange Name Security Exchange Name Interest rate Interest Rate Risk [Member] Defined benefit pension and OPEB plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Less: Preferred stock dividends Dividends, Preferred Stock Pledged Assets and Collateral Commitments Contingencies and Guarantees [Text Block] Other guarantees and commitments, Contractual amount, Expiring after 5 years Guarantor Obligations, Maximum Exposure, Undiscounted, Expiring in More Than Five Years Maximum potential amount of future payments (undiscounted), expiring in more than five years, 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. Long-term debt, short-term borrowings, and deposits, measurement inputs Financial and Nonfinancial Liabilities, Measurement Input Financial and Nonfinancial Liabilities, Measurement Input Net change, Pre-tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Other income Noninterest Income, Other Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] 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 Net increase/(decrease) in cash and due from banks and deposits with banks Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Interest income Total interest income Interest Income, Operating Due after 10 years Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 10 Operating lease income Operating Lease, Lease Income Liabilities: Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Class of Financing Receivable [Axis] Class of Financing Receivable [Axis] Protection sold credit derivatives ratings/maturity profile - from 1-5 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. Settlements Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements Due after 10 years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value All other interest-earning assets Interest Income, Other Off-balance sheet lending related financial instruments, guarantees and other commitments Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Table Text Block] Schedule of off-balance sheet lending-related financial instruments, guarantees and other commitments. Assets pledged at Federal Reserve banks and FHLBs Assets pledged to Federal Reserve Banks and Federal Home Loan Banks [Member] Assets pledged to Federal Reserve Banks and Federal Home Loan Banks ("FHLBs") [Member] Principal transactions revenue Schedule of Principal Transactions Revenue [Table Text Block] Credit Net credit derivatives Credit derivatives Credit Risk Contract [Member] Total debt and equity instruments 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. Commissions and other fees Fees and Commissions1 [Abstract] Fees and Commissions1 [Abstract] Protection purchased with identical underlyings Credit Derivatives, Purchased Credit Protection Describes, in the context of the estimate of potential recoveries, any purchased credit protection with identical underlying(s). Federal funds sold and securities purchased under resale agreements Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell [Member] Impact on fair value of a 200 basis point 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. Industry Sector [Axis] Industry Sector [Axis] Accrued interest receivables Financing Receivable, Accrued Interest, before Allowance for Credit Loss With an allowance Financing Receivable, Nonaccrual, With Related Allowance Financing Receivable, Nonaccrual, With Related Allowance Components of investment banking fees Components Of Investment Banking Fees [Table Text Block] Components Of Investment Banking Fees [Table Text Block] 30–149 days past due Financial Asset, 30 to 149 Days Past Due [Member] Retained loans that are 30 to 149 days past due. Carrying amount of the hedged items Hedged Liability, Fair Value Hedge Cash Flow Hedging Cash Flow Hedging [Member] Trading liabilities Trading Liabilities U.S. nonagency residential collateralized mortgage obligations estimated duration U.S. 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 U.S. non-agency residential collateralized mortgage obligations. Realized gains/(losses) recorded in income Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Total noninvestment-grade Internal Noninvestment Grade [Member] 90 or more days past due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Award Type [Domain] Award Type [Domain] Local Phone Number Local Phone Number Other guarantees and commitments, Carrying value Guarantee liability Guarantor Obligations, Current Carrying Value Brokerage commissions Brokerage Commissions Revenue Nonrecurring Fair Value, Nonrecurring [Member] 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] Credit derivatives table Disclosure of Credit Derivatives [Table Text Block] Amortized cost and estimated fair value by contractual maturity Investments Classified by Contractual Maturity Date [Table Text Block] Term loans originated in 2018/2017 Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Fair value hedges Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments and Tax, Parent Class of Financing Receivable [Domain] Class of Financing Receivable [Domain] Loan sale and securitization-related indemnifications, 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. Portfolio-based Off-Balance Sheet, Credit Loss, Liability, Collectively Evaluated For Impairment The allowance for lending-related commitments, evaluated at portfolio-based impairment methodology. Industrial metals commodity forward Measurement Input, Commodity Forward Price, Industrial Metals [Member] Measurement Input, Commodity Forward Price, Industrial Metals Nonconsolidated entities Nonconsolidated re-securitization VIEs Variable Interest Entity, Not Primary Beneficiary [Member] Concession granted Financing Receivable, Modifications, Percentage of Modifications Financing Receivable, Modifications, Percentage of Modifications Net derivative asset (liability) Derivative Assets (Liabilities), at Fair Value, Net Retained earnings Retained Earnings [Member] Deposits (included $13,270 and $11,333 at fair value) Total deposits Deposits Interest expense Interest Expense [Abstract] Total debt instruments Debt Debt Securities [Member] Deposits Deposit Liabilities Disclosures [Text Block] Interest income on nonaccrual loans recognized on a cash basis Financing Receivable, Nonaccrual, Interest Income % of 30 plus days past due to total retained loans, Revolving loans within the revolving period Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Financing Receivable, Revolving Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Financing Receivable, Revolving Interest owned, included in other assets (in shares) Equity Securities without Readily Determinable Fair Value, Shares Equity Securities without Readily Determinable Fair Value, Shares Investment securities, held-to-maturity Fair value Fair value Debt Securities, Held-to-maturity, Fair Value Due after five years through 10 years Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year 5 Through 10 Mortgage repurchase liability Mortgage Repurchase Liability [Member] Mortgage Repurchase Liability Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] 30 or more days past due Financial Asset, Greater than 30 Days Past Due [Member] Retained loans that are 30 days or more past due. Short-term borrowings Short-term Debt [Member] Total pension and OPEB cost included in noninterest expense Pension and Other Postretirement Benefits Cost (Reversal of Cost) Loans Loans Receivable [Member] Minimum risk-based capital ratios Capital Ratio [Abstract] Capital Ratio % of 30 plus days past due to total retained loans, Term loans originated in 2019/2018 Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated Three Years before Latest Fiscal Year Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated Three Years before Latest Fiscal Year Provision for credit losses Debt Securities, Held-to-maturity, Credit Loss Expense (Reversal) Total Consumer Consumer Loan [Member] Residential: U.S. Domestic Mortgage-backed Securities [Member] Domestic Mortgage-backed Securities [Member] Basic earnings per share (in dollars per share) Net income per share (in dollars per share) Earnings Per Share, Basic Banking Regulation [Abstract] Banking Regulation Due after five years through 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Amortized Cost Loans, net of allowance for loan losses Loans Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Net derivative receivables Derivatives Assets, Subject to Master Netting Arrangement Fair values as of the balance sheet date of assets subject to master netting agreements resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of the master netting arrangements. Series GG Series GG Preferred Stock [Member] Series GG Preferred Stock [Member] Accounts payable and other liabilities Accounts Payable and Accrued Liabilities, Fair Value Disclosure Fair value, beginning balance Fair value, ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Proceeds from loans sales as securities Securities Proceeds From Sale Of Mortgage Loans Securities proceeds received from the sale of originated and purchased mortgage loans. Other expense Other Noninterest Expense Available-for-sale securities, Amortized cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract] Financing Receivable, Nonaccrual [Line Items] Financing Receivable, Nonaccrual [Line Items] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Principal deferred Financing Receivable, Modifications, Principal Deferred Amount of principal deferred in financing receivables that have been modified by troubled debt restructurings that occurred. Loans (included $47,056 and $58,820 at fair value) Total Financing Receivable, Excluding Accrued Interest, Before Allowance For Credit Losses, Net of Deferred Income Financing Receivable, Excluding Accrued Interest, Before Allowance For Credit Losses, Net of Deferred Income Total capital Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum JPMorgan India Private Limited JPMorgan India Private Limited [Member] JPMorgan India Private Limited [Member] Cumulative effect of change in accounting principles Cumulative Effect, Period of Adoption, Adjustment [Member] Five-year CMT US Treasury (UST) Interest Rate [Member] Principal transactions Principal transactions Principal Transactions Revenue, Net Noncriticized Pass [Member] Term or payment extension Term or Payment Extension [Member] Term or Payment Extension [Member] Stress capital buffer Banking Regulation, Stress Capital Buffer Banking Regulation, Stress Capital Buffer 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 Other Other Noncash Income (Expense) Gross derivative receivables Derivative Asset, Fair Value, Gross Asset Certificates of deposit, bankers’ acceptances and commercial paper 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. Total restricted cash Restricted Cash and Cash Equivalents Amounts recorded in OCI Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Off-balance sheet lending-related financial commitments, Contractual amount, Expiring after 1 year through 3 years Off-Balance Sheet Lending-Related Financial Commitments, Contractual Amount, Expiring Between One and Three One Years The contractual amount of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees), expiring between one and three years, 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. Liabilities Fair Value Hedges, Liabilities [Abstract] Fair Value Hedges, Liabilities [Abstract] Consumer-related Consumer Portfolio Segment [Member] Net investment hedge gains and losses Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Loan portfolio segment descriptions Loan Portfolio Segment Descriptions [Table Text Block] Descriptive tabular information of loan portfolio segments. Risk-Weighted Assets Calculation Methodology [Axis] Banking Regulation, Risk-Weighted Assets Calculation Methodology [Axis] Fair Value, Option, Quantitative Disclosures [Line Items] Fair Value, Option, Quantitative Disclosures [Line Items] CET1 capital Common Equity Tier 1 Capital Common Equity Tier 1 Capital as defined by the regulators. Accrued interest receivables reversed through interest income on HTM securities Debt Securities, Held-to-Maturity, Accrued Interest, Writeoff Financial assets Assets, Fair Value Disclosure [Abstract] Total long-term debt Long-term Debt Derivative netting adjustments Amounts netted on the Consolidated balance sheets Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset Loans Insured or Guaranteed by Government Authorities [Axis] Loans Insured or Guaranteed by Government Authorities [Axis] Level 1 Level 1 Fair Value, Inputs, Level 1 [Member] Investing activities Net Cash Provided by (Used in) Investing Activities [Abstract] Series DD Series DD Preferred Stock [Member] Series DD Preferred Stock [Member] Goodwill impairment Goodwill, Impairment Loss Securities loaned and other, Net amounts Securities Loaned, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election DVA on fair value option elected liabilities Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, after Tax and Reclassification Adjustment, Attributable to Parent All other liabilities Other Other Liabilities Entity Small Business Entity Small Business Other Off-Balance Sheet, Credit Loss, Liability, Change in Method, Credit Loss Expense (Reversal) Credit card Credit Card Receivable [Member] Fair value of receivables Credit Risk Derivative Assets, at Fair Value Series LL Series LL Preferred Stock [Member] Series LL Preferred Stock Allowance for credit losses on financing receivables Financing Receivable, Allowance for Credit Loss [Table Text Block] 30 or more days past due Financial Asset, Equal to or Greater than 30 Days Past Due [Member] Financial Asset, Equal to or Greater than 30 Days Past Due Transaction Type [Axis] Transaction Type [Axis] Other unfunded commitments to extend credit Other Unfunded Commitments To Extend Credit Member Other unfunded commitments to extend credit. 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. Current Current and less than 30 days past due and still accruing Financial Asset, Current, and Less Than 30 Days Past Due, and Still Accruing [Member] Financial Asset, Current, and Less Than 30 Days Past Due, and Still Accruing [Member] Threatened or Pending Litigation Threatened or Pending Litigation [Member] The risk of loss associated with the outcome of threatened or pending litigation against an entity. 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. Excluded retained loans purchased from correspondents that were originated in accordance with the Firm's underwriting standards Financing Receivable, Excluded, Purchased from Correspondents, Originated in Accordance with the Firm's Underwriting Standards Excluded financing receivables purchased from correspondents that were originated in accordance with the Firm’s underwriting standards. Components of asset management, administration and commissions Components Of Asset Management Administration And Commissions Text Block [Table 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. Hedging Relationship [Domain] Hedging Relationship [Domain] Swaps Interest Rate Swap [Member] Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Transfers into level 3 Transfers from level 2 into level 3, liabilities Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3 120 or more days past due Financial Asset, Equal to or Greater than 120 Days Past Due [Member] Retained loans that are 120 days or more past due. Payments of long-term borrowings Repayment of Long-term Debt, Long-term Lease Obligation, and Capital Security Cash flow hedge gains and losses Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Total mortgage-backed securities Mortgage-backed securities Collateralized Mortgage Backed Securities [Member] Entity Interactive Data Current Entity Interactive Data Current Available-for-sale securities Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Level 3 Rollforward Supplemental Data [Abstract] Level 3 Rollforward Supplemental Data [Abstract] Level 3 Rollforward Supplemental Data [Abstract] Cash and securities pledged with clearing organizations for the benefit of customers Cash And Securities Pledged With Clearing Organizations For The Benefit Of Customers Cash and securities pledged with clearing organizations for the benefit of customers. Changes in fair value under the fair value option election Fair Value, Option, Partial Election Disclosures [Abstract] Realized gains Debt Securities, Available-for-sale, Realized Gain All other asset management fees All other asset management fees All other asset management fees. Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Derivatives gains/(losses) recorded in income and other comprehensive income/(loss) Cash flow hedge gains and losses Abstract Cash flow hedge gains and losses. Balance Sheet Location [Domain] Balance Sheet Location [Domain] Securities loaned and other, Amounts presented on the Consolidated balance sheets Securities Loaned Schedule of stock by class Schedule of Stock by Class [Table Text Block] Series U Series U Preferred Stock [Member] Series U Preferred Stock. Fair value of payables Credit Risk Derivative Liabilities, at Fair Value Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Gross unrealized gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Redemption Preferred stock redeemed Stock Redeemed or Called During Period, Value Entity Address, State or Province Entity Address, State or Province Amount of claim Loss Contingency, Damages Sought, Value Net charge-offs/(recoveries) Financing Receivable, Allowance for Credit Loss, Writeoff, after Recovery Reclassification adjustment for realized (gains)/losses included in net income, After-tax Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Securities borrowed Securities Borrowed, Fair Value Disclosure Earliest redemption date Preferred Stock, Earliest Redemption Date The earliest date the preferred stock can be redeemed. Changes in derivative fair value and other 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. Mortgage-backed securities, U.S. GSEs and government agencies US Government Corporations and Agencies Securities [Member] Total changes in valuation due to other inputs and assumptions Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Other Valuation Inputs or Changes in Assumptions The net Increase or decrease in fair value as a result of changes in other inputs, assumptions, or model used to calculate the fair value of servicing assets. Average yield Debt Securities, Available-for-Sale, Weighted Average Yield Loans Loans, Notes, Trade and Other Receivables, Excluding Allowance for Credit Losses [Text Block] Short-term borrowings Short-term Borrowings, Excluding Commercial Paper [Member] Short-term Borrowings, Excluding Commercial Paper Equity securities Equity Equity Securities [Member] Commodity correlation Measurement Input, Commodity Correlation [Member] Measurement Input, Commodity Correlation [Member] Non-U.S. government debt securities Non-U.S. government debt Debt Security, Government, Non-US [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Guarantee of Callable Fixed Rate Notes due June 10, 2032 of JPMorgan Chase Financial Company LLC Guarantee of Callable Fixed Rate Notes Due June 10, 2032 of JPMorgan Chase Financial Company LLC [Member] Guarantee of Callable Fixed Rate Notes Due June 10, 2032 of JPMorgan Chase Financial Company LLC Securities lending indemnification agreements and guarantees Securities Lending Indemnifications [Member] Securities lending indemnifications. Trading Activity, by Type [Domain] Trading Activity, by Type [Domain] Leverage-based capital metrics: Banking Regulation, Leverage Ratio [Abstract] Lease liabilities Operating Lease, Liability U.S. government-guaranteed US Government Agency Insured Loans [Member] 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. Document Transition Report Document Transition Report Common stock ($1 par value; authorized 9,000,000,000 shares; issued 4,104,933,895 shares) Common Stock, Value, Issued Loans sold with recourse Loans Sold With Recourse [Member] Loans sold with recourse. Change in unrealized (gains)/losses related to financials instruments held Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss) Insured Depository Institutions Subsidiaries, Insured Depository Institutions [Member] Subsidiaries, Insured Depository Institutions [Member] Subprime Subprime [Member] Cash and due from banks Cash And Due From Banks [Member] Cash And Due From Banks [Member] Debt-to-Value [Axis] Debt-to-Value [Axis] Credit default swaps Credit Default Swap [Member] Leases Lessee, Operating Leases [Text Block] Average equity Segment Reporting Information Average Common Equity Amount of average common equity attributed to the reportable segment. Diluted earnings per share Earnings Per Share, Diluted, Two Class Method [Abstract] Carrying value and estimated fair value of financial assets and liabilities Fair Value, by Balance Sheet Grouping [Table Text Block] Mortgage-backed securities, Commercial - nonagency Commercial Commercial and other Commercial Mortgage Backed Securities [Member] Beneficial interests issued by consolidated VIEs (included $5 and $12 at fair value) Beneficial interests issued by consolidated VIEs Beneficial interests in VIE assets Beneficial Interest Liability Allowance for lending-related commitments Off-Balance Sheet, Credit Loss, Liability [Roll Forward] Fair value, beginning balance Fair value, ending balance Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs New enrollments, percent of total retained credit card loans (less than) Financing Receivable, Modifications, New Enrollments, Percentage of Total Loans Financing Receivable, Modifications, New Enrollments, Percentage of Total Loans Firm-sponsored credit card trusts Firm Sponsored Credit Card Securitization Trusts [Member] Firm-sponsored Credit Card securitization trust. Beneficial interests issued by consolidated VIEs Beneficial Interests Issued by Consolidated VIEs [Member] Beneficial Interests Issued by Consolidated VIEs [Member] Series BB Series BB Preferred Stock [Member] Series BB Preferred Stock [Member] Sales Financing Receivable, Sale Written options Short [Member] Ownership [Axis] Ownership [Axis] Credit Derivatives Contract Type [Domain] Credit Derivatives Contract Type [Domain] Legal Entity [Axis] Legal Entity [Axis] Production revenue Mortgage Production Revenue Mortgage production revenue. Level 3 Analysis - Supplemental Data [Abstract] Level 3 Analysis - Supplemental Data [Abstract] Level 3 Analysis - Supplemental Data [Abstract] Goodwill [Line Items] Goodwill [Line Items] Class of Stock [Axis] Class of Stock [Axis] Securities borrowed, Gross amounts Securities Borrowed, Gross Including Not Subject to Master Netting Arrangement Basel III Standardized Basel III Standardized [Member] Basel III Standardized [Member] Net interest income Net interest income Interest Income (Expense), Net Allowance for loan losses Financing Receivable, Allowance for Credit Loss [Roll Forward] US government agencies and US government sponsored enterprises residential MBS 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). Net unrealized gains/(losses) arising during the period/Translation, Tax effect Other Comprehensive Income (Loss) before Reclassifications, Tax Other Vie Program Type Other [Member] VIE Program Type Other. New TDRs Balance of new TDRs Financing Receivable, Troubled Debt Restructuring, Postmodification U.S. unemployment rates and cumulative change in U.S. real GDP Schedule Of Unemployment Rates And Cumulative Change In Real GDP [Table Text Block] Schedule Of Unemployment Rates And Cumulative Change In Real GDP Maximum length of time hedged in forecasted transactions, terminated cash flow hedges Maximum Length of Time Hedged in Cash Flow Hedge, Terminated Cash Flow Hedge For a terminated cash flow hedge, maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Entity [Domain] Entity [Domain] Other Wholesale Other [Member] Class of financing receivables related to special purpose entities, private bank clients, and other wholesale industries. Dividends declared, Common stock (in dollars per share) Common Stock, Dividends, Per Share, Declared Due after one year through five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost Net mortgage servicing revenue: Net Mortgage Servicing Revenue Abstract Net Mortgage Servicing Revenue. Risk participations for 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. Consolidation Items [Domain] Consolidation Items [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Document Quarterly Report Document Quarterly Report Deposits [Line Items] Deposits [Line Items] Net cash collateral payables Derivative Liability, Collateral, Right to Reclaim Cash, Offset Schedule of securities sold under repurchase agreements, netting & securities loaned Schedule of Securities Financing Transactions [Table Text Block] Measurement Input Type [Domain] Measurement Input Type [Domain] Commodity Commodity [Member] Equal to or greater than 660 Refreshed FICO Scores Equal to or Greater than 660 [Member] Loans related to refreshed FICO score that is equal or greater than 660. Consumer, excluding credit card Consumer, Excluding Credit Card Loan Portfolio Segment [Member] Portfolio segment of the company's total financing receivables related to consumer, excluding credit card receivables. Less than 12 months, Fair value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months Amounts recorded in OCI Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax Variable Rate [Axis] Variable Rate [Axis] Average yield Debt Securities, Held-to-Maturity, Weighted Average Yield Business Segments Segment Reporting Disclosure [Text Block] Net unrealized gains/(losses) arising during the period/Translation, After-tax OCI, before Reclassifications, Net of Tax, Attributable to Parent Tier 1 leverage Banking Regulation, Tier One Leverage Capital Ratio, Capital Adequacy, Minimum Loans modified in TDRs Financing Receivable, Troubled Debt Restructuring HTM securities purchased Debt Securities, Held-to-maturity, Purchase Commercial mortgage Total wholesale Commercial Loan [Member] Deposits Deposits Deposits [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Long-term debt (included $66,062 and $74,934 at fair value) Long-term Debt and Lease Obligation, Including Current Maturities Total Hedged Asset, Active and Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Hedged Asset, Active and Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Changes in fair value Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Changes in Fair Value, Net Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Changes in Fair Value, Net Beneficial interests issued by consolidated VIEs Increase Decrease in Beneficial Interests Issued by Consolidated Variable Interest Entities Beneficial interests issued by consolidated variable interest entities. Reissuance Stock Issued During Period, Value, Treasury Stock Reissued Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Document Fiscal Year Focus Document Fiscal Year Focus Variable Rate [Domain] Variable Rate [Domain] Weighted-average prepayment speed assumption (constant prepayment rate) 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 Transfers (out of) level 3 Transfers from level 3 into level 2, assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3 Additional paid-in capital Additional Paid-in Capital [Member] Total net mortgage servicing revenue Servicing Revenue, Net, Real Estate Mortgages Total net servicing revenue related to real estate mortgage activity. Depositary Shares, each representing a one-four hundredth interest in a share of 4.20% Non-Cumulative Preferred Stock, Series MM Depositary Shares, One-Four Hundredth Interest in a Share of 4.20% Non-Cumulative Preferred Stock, Series MM [Member] Depositary Shares, One-Four Hundredth Interest in a Share of 4.20% Non-Cumulative Preferred Stock, Series MM Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents [Abstract] Total non-U.S. Geographic Distribution, Foreign [Member] Depositary Shares, each representing a one-four hundredth interest in a share of 4.75% Non-Cumulative Preferred Stock, Series GG Depositary Shares, One-Four Hundredth Interest in a Share of 4.75% Non-Cumulative Preferred Stock, Series GG [Member] Depositary Shares, One-Four Hundredth Interest in a Share of 4.75% Non-Cumulative Preferred Stock, Series GG [Member] 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. Loans reported as trading assets: Other changes in fair value Loans Reported as Trading Assets, Other Changes in Fair Value [Member] Loans Reported as Trading Assets, Other Changes in Fair Value [Member] Equity Equity [Member] Derivative netting adjustments Amounts netted on the Consolidated balance sheets Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset Held-to-maturity securities (net of allowance for credit losses) Amortized cost Debt Securities, Held-to-Maturity, Excluding Accrued Interest, after Allowance for Credit Loss Regulatory Capital Regulatory Capital Requirements under Banking Regulations [Text Block] Entity Information [Line Items] Entity Information [Line Items] Other assets Other assets Other Assets [Member] Long-term debt Long-term debt Long-term Debt, Fair Value Loans Loans [Member] Number of counts of wire fraud charged Loss Contingency, Deferred Prosecution Agreement, Claims Settled, Number Of Counts Of Wire Fraud Loss Contingency, Deferred Prosecution Agreement, Claims Settled, Number Of Counts Of Wire Fraud Deposit-related fees Fees and Commissions, Depositor Accounts1 Fees and Commissions, Depositor Accounts1 Amortized cost Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss Industry Sector [Domain] Industry Sector [Domain] All other investing activities, net Payments for (Proceeds from) Other Investing Activities Interest-bearing (included $299 and $169 at fair value) Interest-bearing Deposit Liabilities, Foreign Sales Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Sales Schedule of types of assets pledged in secured financing transactions Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Table Text Block] JPMorgan Chase Financial Company LLC JPMorgan Chase Financial Company LLC [Member] JPMorgan Chase Financial Company LLC [Member] Amount of additional collateral to be posted upon downgrade Additional Collateral, Aggregate Fair Value Maximum Maximum [Member] Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Realized gains/(losses) due to instrument-specific credit risk recorded in principal transactions revenue Fair Value, Option, Credit Risk, Gains (Losses) on Assets Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Prepayment speed Measurement Input, Prepayment Rate [Member] Securities sold under agreements to repurchase Securities Sold under Agreements to Repurchase, Not Subject to Master Netting Arrangement Mortgage servicing rights MSRs Fair value at beginning of period Fair value at end of period Servicing Asset at Fair Value, Amount Risk participations for 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. Award Type [Axis] Award Type [Axis] Financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Total stockholders’ equity Beginning balance Ending balance Stockholders' Equity Attributable to Parent Changes in level 3 recurring fair value measurements Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table 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). Short-term borrowings Short-term borrowings Short-term Debt, Fair Value Direct-owned finance subsidiary ownership Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest Depositary Shares, each representing a one-four hundredth interest in a share of 4.55% Non-Cumulative Preferred Stock, Series JJ Depositary Shares, One-Four Hundredth Interest in a Share of 4.55% Non-Cumulative Preferred Stock, Series JJ [Member] Depositary Shares, One-Four Hundredth Interest in a Share of 4.55% Non-Cumulative Preferred Stock, Series JJ City Area Code City Area Code Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Senior securities purchased in connection with CIB's secondary market-making activities 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. Designated as hedges Designated as Hedging Instrument [Member] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Accrual of estimated costs of share-based awards to be granted in future periods, predominantly those 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. Change in unrealized gains/(losses) related to financial instruments held Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss) CET1 capital Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum Gross unrealized gains Debt Securities, Held-to-maturity, Accumulated Unrecognized Gain Other credit derivatives Other Credit Derivatives [Member] Lending-related commitments, fair value option elected Letters of Credit Hedged by Derivative Transactions, Amount Elected at Fair Value [Member] The amount elected at fair value of letters of credit hedged by derivative transactions and managed on a market risk basis. Treasury stock repurchased Payments for Repurchase of Common Stock Basel III Advanced Basel III Advanced [Member] Basel III Advanced [Member] Available-for-sale securities, Fair value Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Stockholders’ equity Stockholders' equity Stockholders' Equity Attributable to Parent [Abstract] Due after one year through five years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value Total net revenue Revenues, Net of Interest Expense 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 Total net periodic defined benefit plan cost/(credit) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Short-term borrowings Proceeds from Short-term Debt 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 - Supplemental Information [Abstract] Due after five years through 10 years Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after Five through Ten Years Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after Five through Ten Years % of investment-grade to total retained loans Percentage of Investment-Grade to Total Retained Loans Percentage of Investment-Grade to Total Retained Loans Securities gains and losses and provision for credit loss Realized Gain (Loss) on Investments [Table Text Block] Operating Segments Operating Segments [Member] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Standby letters of credit and other financial guarantees 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. RSUs Restricted Stock Units (RSUs) [Member] Principal forgiveness Principal Forgiveness [Member] Taxable securities Interest Income, Securities, Operating, Taxable 30 – 90 days Maturity 30 to 90 Days [Member] Total credit derivatives Total Credit Derivatives [Member] Total freestanding credit derivatives. 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. Basel III Basel III [Member] Basel III [Member] Noninterest Revenue and Noninterest Expense Noninterest Revenue and Expense [Text Block] Noninterest Revenue and Expense [Text Block] Components of restricted cash Restrictions on Cash and Cash Equivalents [Table Text Block] Due after 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost Discounted cash flows Valuation Technique, Discounted Cash Flow [Member] Income Statement [Abstract] Income Statement [Abstract] Entity Registrant Name Entity Registrant Name Variable Interest Entities by Classification of Transferee [Axis] Qualitative and Quantitative Information, Transferor's Continuing Involvement, Transferred Financial Assets, by Transfer or Transferee [Axis] Asset Class [Domain] Asset Class [Domain] Loan Restructuring Modification [Axis] Loan Restructuring Modification [Axis] Nonaccrual loans Total nonaccrual loans Financing Receivable, Nonaccrual Total held-to-maturity securities, Fair value Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Mortgage fees and related income Fees And Commissions, Mortgage Banking And Related, Components [Table Text Block] Fees, commissions and related income from Mortgage Banking activities. Maximum payout/Notional amount Total credit derivatives and credit related notes Abstract Total credit derivatives and credit-related notes. Securities sold under repurchase agreements, Net amounts Securities Sold under Agreements to Repurchase, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election Information about loan delinquencies and liquidation losses 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. Discount rates Servicing Asset at Fair Value, Changes in valuation due to inputs and assumptions, discount rates The net increase or decrease in fair value as a result of changes in inputs, assumptions, or model relating to discount rates, used to calculate the fair value of servicing assets Accrued interest receivables on investment securities Debt Securities, Available-for-Sale and Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss Debt Securities, Available-for-Sale and Held-to-Maturity, Accrued Interest, after Allowance for Credit Loss Options Interest Rate Option [Member] Interest Rate Option [Member] Securities sold under repurchase agreements, Gross amounts Securities sold under repurchase agreements Securities Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement Income tax expense Income tax expense/(benefit) Income Tax Expense (Benefit) SLR, supplementary leverage buffer requirements Supplementary Leverage Ratio Required For Capital Adequacy To Average Assets, Supplementary Leverage Buffer Supplementary Leverage Ratio Required For Capital Adequacy To Average Assets, Supplementary Leverage Buffer Other Goodwill, Other Increase (Decrease) Impact of credit adjustments on earnings Credit Risk Adjustments On Derivative Assets And Liabilities And Debt Instruments Gains Losses Text Block [Table 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 of loans sold Mortgage Loan Related to Property Sales All cash flows during the period: Cash Flows Between Transferor and Transferee [Abstract] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Tax Identification Number Entity Tax Identification Number Investment Type [Axis] Investment Type [Axis] Document Fiscal Period Focus Document Fiscal Period Focus Schedule of equity securities without readily determinable fair values measured under the measurement alternative and related adjustments Equity Securities without Readily Determinable Fair Value [Table Text Block] Off-balance sheet lending-related financial commitments, Contractual amount, Expiring in 1 year or less Off-Balance Sheet Lending-Related Financial Commitments, Contractual Amount, Expiring in Less Than One Year The contractual amount of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees), expiring in less than one year, 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. Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] No FICO/LTV available No FICO or LTV Score Available [Member] No FICO or LTV Score Available Noninterest Income (Expense) [Abstract] Noninterest Income (Expense) [Abstract] Noninterest Income (Expense) [Abstract] Other assets Other Other Assets, Fair Value Disclosure Schedule of Variable Interest Entities [Table] Schedule of Variable Interest Entities [Table] Percentage of portfolio based on carrying value with estimated refreshed FICO scores, Less than 660 Percentage of Loans with FICO Scores Less than 660 to Total Retained Loans Percentage of recorded investment in retained loans that have estimated refreshed FICO scores of less than 660. Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Loans by impairment methodology Loans by Impairment Methodology [Abstract] Loans by impairment methodology. 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. Modifications, weighted-average remaining life Financing Receivable, Modifications, Weighted-Average Remaining Life Financing Receivable, Modifications, Weighted-Average Remaining Life Loan securitizations policy Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Securities purchased under resale agreements, Amounts netted on the Consolidated balance sheets Securities Purchased under Agreements to Resell, Liability Market comparables Valuation, Market Approach [Member] Equity Component [Domain] Equity Component [Domain] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Securities Financing Activities Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Tax credit vehicles Tax Credit Vehicles [Member] Tax Credit Vehicles [Member] Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Commitments with collateral Standby Letters of Credit, Supported by Collateral The contractual amount of standby letters of credit supported by collateral. Net additions/(dispositions) Mortgage Servicing Rights Net Additions The net additions of Mortgage Servicing Rights (MSRs). Fair value Debt Securities, Available-for-Sale and Held-to-Maturity, Fair Value Collateral-dependent loans 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. Investment management fees Investment Advisory Fees1 Investment Advisory Fees1 Issuances Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances DVA on fair value option elected liabilities DVA on fair value option elected liabilities, net change Accumulated Gain (Loss), Fair Value Option Financial Liabilities, Attributable to Parent [Member] Accumulated Gain (Loss), Fair Value Option Financial Liabilities, Attributable to Parent [Member] Consumer & Community Banking Consumer & Community Banking [Member] Consumer & Community Banking [Member] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] Liabilities Liabilities Liabilities [Abstract] Pretax unrealized losses included in AOCI on the securities at the date of transfer OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), before Tax Loans: Changes in instrument-specific credit risk Loans, Changes in Instruments-Specific Credit Risk [Member] Loans, Changes in Instruments-Specific Credit Risk [Member] Number of months before a payment redefault under modified loans Number of Months Before a Payment Redefault Under Modified Loan Number of months before a payment redefault under a modified loan. Commercial paper eliminated in consolidation Commercial Paper Issued By Consolidated Variable Interest Entities Eliminated In Consolidation The amount of commercial paper issued by variable interest entities that was eliminated in consolidation. All other commissions and fees Fees and Commissions, Other1 Fees and Commissions, Other1 Counterparty Name [Domain] Counterparty Name [Domain] Investment securities, allowance for credit losses Total allowance for investment securities Debt Securities, Available-for-Sale and Held-to-Maturity, Allowance for Credit Loss Total held-to-maturity securities, Amortized cost Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date [Abstract] Average Weighted average Weighted Average [Member] Amrapali Litigation Amrapali Litigation [Member] Amrapali Litigation [Member] 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. Income before income tax expense Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Credit Score, FICO [Axis] Credit Score, FICO [Axis] Level 2 Fair Value, Inputs, Level 2 [Member] Geographic Distribution [Domain] Geographic Distribution [Domain] Alerian MLP Index ETNs due May 24, 2024 Alerian MLP Index ETNs Due May 24, 2024 [Member] Alerian MLP Index ETNs Due May 24, 2024 [Member] Less: Dividends and undistributed earnings allocated to participating securities Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Total fair value Debt Securities, Available-for-sale, Unrealized Loss Position Derivatives gains/(losses) recorded in income Derivative, Gain (Loss) on Derivative, Net Segment Reporting [Abstract] Segment Reporting [Abstract] Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Changes in valuation due to other inputs and assumptions: Servicing Asset at Fair Value, Changes in Fair Value Due to Other Inputs and Assumptions [Abstract] Servicing Asset at Fair Value, Changes in Fair Value Due to Other Inputs and Assumptions [Abstract] Total deposits in U.S. offices Deposits, Domestic 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] Due after one year through five years Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after One through Five Years Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling after One through Five Years Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value Inputs Assets And Liabilities Quantitative Information [Line Items] Fair Value Inputs Assets And Liabilities Quantitative Information [Line Items] Accounts payable and other liabilities Accounts payable and other liabilities [Member] Accounts payable and other liabilities. Commodity Net commodity derivatives Commodity contracts Commodity Contract [Member] CET1 capital ratio Common Equity Tier 1 Capital to Risk Weighted Assets Common Equity Tier 1 Capital divided by risk weighted assets as defined by regulations. Use of estimates in the preparation of consolidated financial statements policy Use of Estimates, Policy [Policy Text Block] Schedule of earnings per share basic and diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Non-taxable securities Interest Income, Securities, Operating, Tax Exempt Tier 1 capital Banking Regulation, Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum Financial liabilities Financial Liabilities Fair Value Disclosure [Abstract] Total other comprehensive income/(loss), after–tax Other comprehensive income/(loss), after-tax Net change Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Assets and liabilities measured at fair value on a nonrecurring basis Fair Value Measurements, Nonrecurring [Table Text Block] Title of 12(b) Security Title of 12(b) Security Changes in fair value under the fair value option election Fair Value Option, Disclosures [Table Text Block] Due in one year or less Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling within One Year Debt Securities, Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, Rolling within One Year Collateral not nettable on the Consolidated balance sheets Derivative, Collateral, Right to Reclaim Securities and/or Cash Held at Third-Party Custodians Amount of right to receive securities and/or cash collateral held at third-party custodians under master netting arrangements that have not been offset against derivative liabilities. Common stock, shares authorized (in shares) Common Stock, Shares Authorized Series AA Series AA Preferred Stock [Member] Series AA Preferred Stock [Member] Cumulative downward carrying value changes/impairment Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Cumulative Amount Securities loaned and other, Gross amounts Securities loaned and other Securities Loaned, Gross Including Not Subject to Master Netting Arrangement 30–89 days past due and still accruing Financial Asset, 30 to 89 Days Past Due [Member] Retained loans that are 30 to 89 days past due and still accruing interest. 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 income applicable to common stockholders Net income applicable to common stockholders Net income applicable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Document Type Document Type Fair Value Option Fair Value, Option [Text Block] Dividend declared per share (in dollars per share) Preferred Stock, Dividends Per Share, Declared Securities loaned and other, Amounts not nettable on the Consolidated balance sheets Securities Loaned, Fair Value of Collateral Product and Service [Domain] Product and Service [Domain] Series II Series II Preferred Stock [Member] Series II Preferred Stock [Member] Amortized cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss Federal funds sold and securities purchased under resale agreements Federal Funds Sold and Purchased under Agreements to Resell [Member] Federal Funds Sold and Purchased under Agreements to Resell [Member] Other commercial Wholesale Real Estate Commercial Lessors [Member] Loans that are collateralized by commercial lessors, which are a subcategory of Wholesale Real Estate Loans. Mortgage servicing rights activity Mortgage Servicing Rights Fair Value Roll Forward Text Block [Table Text Block] Mortgage Servicing Rights roll forward showing the reconciliation of the fair value of MSRs from the beginning of a period to the end of a period. Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Active hedging relationships Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) Long-term debt Interest Expense, Long-term Debt Schedule of significant types of variable interest entities by business segment Schedule of Significant Types of Variable Interest Entities by Business Segment [Table Text Block] Schedule of Significant Types of Variable Interest Entities by Business Segment [Table Text Block] Preferred stock Preferred Stock Including Additional Paid in Capital [Member] Measurement Frequency [Axis] Measurement Frequency [Axis] Other guarantees and commitments Other Guarantees and Commitments [Member] Other Guarantees And Commitments. Well capitalized risk-based ratios Well Capitalized Risk-based Ratios [Abstract] Well Capitalized Risk-based Ratios Noninterest revenue Noninterest revenue Noninterest Income Geographical [Axis] Geographical [Axis] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Transfers (out of) level 3 Transfers from level 3 into level 2, liabilities Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3 Schedule of Impaired Financing Receivable [Table] Schedule of Impaired Financing Receivable [Table] Amounts recorded in income Derivative, Excluded Component, Gain (Loss), Recognized in Earnings Deposits with banks Interest-bearing Deposits in Banks and Other Financial Institutions Net Investment Hedging Net Investment Hedging [Member] Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Hedging Relationship [Axis] Interest-bearing (included $589 and $629 at fair value) Interest-bearing Deposit Liabilities, Domestic Weighted-average interest rate of loans with interest rate reductions – before TDR Weighted-average interest rate of loans – 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. Amortization approach Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Method, Net Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Amortization Method, Net Real estate acquired through foreclosure Real Estate Acquired Through Foreclosure Securities borrowed, Amounts netted on the Consolidated balance sheets Securities Borrowed, Liability Futures and forwards Equity Future and Forward [Member] Equity Future and Forward [Member] SLR Supplementary Leverage Ratio Required For Capital Adequacy To Average Assets Supplementary Leverage Ratio Required For Capital Adequacy To Average Assets Maximum exposure of stable value contracts with contractually limited exposure Derivatives Maximum Exposure To Loss Derivatives maximum exposure to loss. Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities 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] Securities purchased under resale agreements, Amounts presented on the Consolidated balance sheets Securities Purchased under Agreements to Resell Investment 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. Metals and U.S. Treasuries Investigations and Litigation and Related Inquiries Metals And U.S. Treasuries Investigations And Litigation And Related Inquiries [Member] Metals And U.S. Treasuries Investigations And Litigation And Related Inquiries Variable Interest Entities [Abstract] Variable Interest Entities [Abstract] Variable Interest Entities. Trading liabilities Increase (Decrease) in Trading Liabilities 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. Portfolio-based Off Balance Sheet Lending-Related Financial Commitments, Contractual Amount, Evaluated at Portfolio-Based Impairment Methodology 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. Offsetting assets and liabilities policy Derivatives and Securities Purchased and Sold Under Resale and Repurchase Agreements, Offsetting, Policy [Policy Text Block] Disclosure of accounting policy for offsetting derivative instruments and securities purchased and sold under resale and repurchase agreements, respectively, when the offsetting requirements under U.S. GAAP are satisfied. [Policy Text Block] Balance of loans that redefaulted within one year of permanent modification Balance of loans that redefaulted within one year of modification Financing Receivable, Troubled Debt Restructuring, Subsequent Default Fair Value Measurement Fair Value Disclosures [Text Block] Assets and liabilities measured at fair value on a recurring basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] Cash and due from banks Cash and Due from Banks Unfunded lending-related commitments Total lending-related commitments Off-Balance Sheet Lending-Related Financial Commitments, 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. Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Beneficial interests in VIE assets, long term Beneficial Interest Liability, Long Term Long term obligation reflecting another party's right to economic interests in another entity or trust under a contractual right. For example, an investor may purchase a beneficial interest in a securitization transaction. Total realized/unrealized (gains)/losses Realized/unrealized gains/(losses), liabilities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Realized and Unrealized Gains (Losses) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Realized and Unrealized Gains (Losses) Total realized/unrealized gains/(losses) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Net Derivative Asset (Liability), Realized and Unrealized Gains (Losses) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Net Derivative Asset (Liability), Realized and Unrealized Gains (Losses) Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table] Investment securities - AFS Total available-for-sale securities Investment securities Available-for-sale Securities [Member] Assets held in nonconsolidated securitization VIEs with continuing involvement Securitized assets Continuing Involvement with Derecognized Transferred Financial Assets, Amount Outstanding Components of noninterest expense Components Of Noninterest Expense [Table Text Block] Disclosure of details of items comprising noninterest expense. Total change in OCI for period Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax Derivative [Table] Derivative [Table] Alternative investments, net asset value, fair value Alternative Investment Revenue Revenues [Abstract] Total structured notes 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. Federal funds sold and securities purchased under resale agreements Proceeds from (Payments for) Federal Funds Sold and Securities Purchased under Agreements to Resell, Net Interest income Interest and Dividend Income, Operating [Abstract] Document Period End Date Document Period End Date Amortized costs and estimated fair values Amortized Costs and Estimated Fair Values [Table 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. Beginning balance Ending balance Total allowance for lending-related commitments Allowance for lending-related commitments Off-Balance Sheet, Credit Loss, Liability Securities loaned and other, Amounts netted on the Consolidated balance sheets Securities Loaned, Asset Financial Instruments Owned and Pledged as Collateral [Table] Financial Instruments Owned and Pledged as Collateral [Table] 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. Proceeds received from loan sales as financial instruments Cash Flows Between Transferor and Transferee, Proceeds from New Transfers Consolidated Entities [Domain] Consolidated Entities [Domain] Off-balance sheet lending-related financial commitments, Contractual amount, Expiring after 5 years Off-Balance Sheet Lending-Related Financial Commitments, Contractual Amount, Expiring in More Than Five Years The contractual amount of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees), expiring in more than five years, 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. Increase in allowance for credit losses Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) Other changes in loans, net Proceeds From (Payments For) Other Loans and Leases Proceeds From (Payments For) Other Loans and Leases Income Statement Location [Domain] Income Statement Location [Domain] 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. Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-sale [Table] Debt securities, trading Debt Securities, Trading Fair value of retained interests Retained Interest, Fair Value Disclosure Allowance for lending-related commitments by impairment methodology Off-Balance Sheet, Impairment Methodology [Abstract] Off-Balance Sheet, Impairment Methodology [Abstract] Allowance for loan losses by impairment methodology Financing Receivable, Impairment methodology Abstract Impairment methodology. Net derivative asset (liability), measurement inputs Derivative Asset (Liability) Net, Measurement Input Risk-weighted assets Banking Regulation, Risk-Weighted Assets, Actual Premises and equipment Property, Plant and Equipment, Net Schedule of Noninterest revenue [Table] Schedule of Non interest Revenue [Table] Schedule of non-interest revenue comprising banking, commision and other fees, asset management, administration and transaction revenue. Other guarantees and commitments, Contractual amount, Expiring after 3 years through 5 years Guarantor Obligations, Maximum Exposure, Undiscounted, Expiring Between Three and Five Years Maximum potential amount of future payments (undiscounted), expiring between three and five years, 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. Preferred stock Dividends, Preferred Stock, Cash Liquidation value and redemption price per share (in dollars per share) Preferred Stock, Redemption Price Per Share Level 3 liabilities as a 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. Unrealized gains/(losses) recorded on AFS securities in OCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Earnings Per Share [Abstract] Earnings Per Share [Abstract] Long-term beneficial interests Long Term Beneficial Interests Abstract Long term beneficial interests. Net gains as a result of measurement alternative Upward carrying value changes Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Annual Amount Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Repurchase Agreements and Similar Transactions, Maturity Periods [Axis] Translation adjustments, net of hedges Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Purchases Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases Transfers of securities to VIEs Variable Interest Entity, Transfer of Securities [Abstract] Variable Interest Entity, Transfer of Securities [Abstract] Countercyclical buffer Banking Regulation, Countercyclical Capital Buffer Conversion rate Conversion of Stock, Conversion Rate Conversion of Stock, Conversion Rate Collateral permitted to be sold or repledged, delivered, or otherwise used Fair Value of Securities Received as Collateral that Can be Resold or Repledged % of 30 plus days past due to total retained loans, Term loans originated in 2021/2020 Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated in Fiscal Year before Latest Fiscal Year Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated in Fiscal Year before Latest Fiscal Year Foreign exchange Net foreign exchange derivatives Foreign exchange contracts Foreign Exchange Contract [Member] Treasury stock, at cost (1,172,361,505 and 1,160,784,750 shares) Treasury Stock, Common, Value Noninterest-bearing (included $1,135 and $2,420 at fair value) Noninterest-bearing Deposit Liabilities, Foreign 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. Investment-grade External Credit Rating, Investment Grade [Member] Weighted average LTV ratio Financing Receivable, Weighted Average LTV Ratio Financing Receivable, Weighted Average LTV Ratio Foreign Exchange Investigations and Litigation Foreign Exchange Investigations and Litigation [Member] Foreign Exchange Investigations and Litigation [Member] Originations and purchases of loans held-for-sale Payments for Origination and Purchases of Loans Held-for-sale Conditional default rate Measurement Input, Default Rate [Member] Entity Current Reporting Status Entity Current Reporting Status Securities purchased under resale agreements, Gross amounts Securities Purchased under Agreements to Resell, Gross Including Not Subject to Master Netting Arrangement Fair value of plan assets Defined Benefit Plan, Plan Assets, Amount Series FF Series FF Preferred Stock [Member] Series FF Preferred Stock [Member] Changes in valuation due to inputs and assumptions: Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions [Abstract] Lien Category [Axis] Lien Category [Axis] Number of offshore funds formerly managed by JPMorgan Chase entities Loss Contingency, Number Of Offshore Funds Formerly Managed Loss Contingency, Number Of Offshore Funds Formerly Managed Asset-backed securities: Other Other Debt Obligations [Member] Gains/(losses) recorded in income Gain (Loss) on Fair Value Hedges Recognized in Earnings [Abstract] Counterparty Name [Axis] Counterparty Name [Axis] Pledged assets and Collateral Financial Instruments Owned and Pledged as Collateral [Line Items] Gross unrealized gains Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Gain CCB mortgage fees and related income Net Produciton Revenue [Abstract] Net Produciton Revenue Loans, measurement input Loans Receivable, Measurement Input Loans Receivable, Measurement Input Protection sold Total notional amount Credit Derivative, Maximum Exposure, Undiscounted Other Financing Receivable, Change in Present Value, Expense (Reversal) Proceeds from paydowns and maturities Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Yield Measurement Input, Discount Rate [Member] Adjusted average assets Adjusted Average Assets Adjusted average assets, as calculated in accordance with U.S. federal regulatory capital standards. Deposits Increase (Decrease) in Deposits Leases [Abstract] Leases [Abstract] Three-month LIBOR London Interbank Offered Rate (LIBOR) [Member] Principal transactions Principal or Proprietary Transactions [Member] 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. Gross derivative payables Total derivative payables recognized on the Consolidated balance sheets, Gross derivative payables Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Components of lending and deposit-related fees Components of Lending Related and Deposit Related Fees [Table Text Block] Components of Lending Related and Deposit Related Fees [Table] Risk management derivatives gains and losses (not designated as hedging instruments) Schedule of Price Risk Derivatives [Table Text Block] Reclassification adjustment for realized (gains)/losses included in net income, Pre-tax Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Total noninterest expense Noninterest expense Noninterest Expense Entity Address, Postal Zip Code Entity Address, Postal Zip Code Underlying Asset Class [Domain] Underlying Asset Class [Domain] Prepayment model changes and other Servicing Asset at Fair Value, Changes in valuation due to inputs and assumptions, prepayment model changes and other The net increase or decrease in fair value as a result of changes in inputs, assumptions, or model relating to prepayment model changes and other, used to calculate the fair value of servicing assets Due after five years through 10 years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value Weighted-average diluted shares (in shares) Total weighted-average diluted shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Securities sold under repurchase agreements, Amounts presented on the Consolidated balance sheets Securities Sold under Agreements to Repurchase Options Foreign Exchange Option [Member] Due in one year or less Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, Year One Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost Beneficial interest issued by consolidated VIEs Interest Expense, Beneficial Interests Issued by Consolidated Variable Interest Entities Schedule of nonaccrual loans Financing Receivable, Nonaccrual [Table Text Block] Components of net periodic benefit costs reported in the Consolidated Statements of Income Schedule of Net Benefit Costs [Table Text Block] Nontrading loans Loans Loans Receivable, Not-for-Trading [Member] Loans Receivable, Not-for-Trading [Member] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Maximum exposure Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Series Z Series Z Preferred Stock [Member] Series Z Preferred Stock [Member] Interchange and merchant processing income Interchange and Merchant Processing [Member] Interchange and Merchant Processing [Member] Class of Stock [Line Items] Class of Stock [Line Items] OTC–cleared Exchange Cleared [Member] Loans Loans, net of allowance for loan losses At fair value Loans Receivable, Fair Value Disclosure Occupancy expense Occupancy, Net Not designated as hedges Not Designated as Hedging Instrument [Member] Entity Address, Address Line One Entity Address, Address Line One Loans Fair Value, Option, Loans Held as Assets [Abstract] Derivatives FVA Derivative, Gain (Loss) on Derivative, Net, DVA and FVA For debit valuation adjustments ("DVA") and funding valuation adjustments ("FVA"), amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Unrealized gains/(losses) on investment securities Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent Loss contingency range of possible loss Loss Contingency, Range of Possible Loss, Portion Not Accrued Credit spread Measurement Input, Credit Spread [Member] Operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Series KK Series KK Preferred Stock [Member] Series KK Preferred Stock Consolidation policy Consolidation, Policy [Policy Text Block] Entity Shell Company Entity Shell Company Segregated for the benefit of securities and cleared derivative customers Segregated for Benefit of Securities and Cleared Derivative Customers [Member] Segregated for Benefit of Securities and Cleared Derivative Customers [Member] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Projected cash flows (e.g., cost to service) Servicing Asset at Fair Value, Changes in valuation due to inputs and assumptions, projected cash flows The net increase or decrease in fair value as a result of changes in inputs, assumptions, or model relating to projected cash flows, used to calculate the fair value of servicing assets Hedged items Change in Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge 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). Non-U.S. offices Deposits, Foreign [Abstract] Two-notch downgrade Two-notch Downgrade [Member] Describes the impact of a two-notch downgrade of the entity's credit rating. Underwriting Underwriting Income (Loss) Reconciliation of the Firm's regulatory capital, assets and risk-based capital ratios Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Total held-to-maturity securities, Average yield Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Average Yield [Abstract] Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Average Yield [Abstract] Bank Holding Companies Bank Holding Companies [Member] Bank Holding Companies [Member] Nonaccrual loans Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status Federal funds sold and securities purchased under resale agreements (included $319,188 and $252,720 at fair value) Federal funds sold and securities purchased under resale agreements Federal Funds Sold and Securities Purchased under Agreements to Resell Number of payments past due for deemed payment Number of Payments Past Due for Deemed Payment Default The number of contractual payments past due needed before a payment default is deemed to occur. Current Fiscal Year End Date Current Fiscal Year End Date Number of other defendants that agreed in principle to settle class action Loss Contingency, Number of Defendants Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Capital conservation buffer requirement Capital Conservation Buffer An additional amount held in risk-based capital designed to ensure that banks build up capital buffers outside periods of stress which can be drawn down as losses are incurred. The requirement is based on simple capital conservation rules designed to avoid breaches of minimum capital requirements. Term loans originated in 2020/2019 Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Statement [Table] Statement [Table] Comprehensive Income Loss [Table] Comprehensive Income Loss [Table] -- None. No documentation exists for this element. -- Risk Management Activities Risk Management Activities [Member] Risk Management Activities Member. Noninvestment-grade External Credit Rating, Non Investment Grade [Member] Disposition of MSRs Servicing Asset at Fair Value, Disposals Preferred stock ($1 par value; authorized 200,000,000 shares; issued 3,283,750 and 3,483,750 shares) Carrying value Preferred Stock, Including Additional Paid in Capital, Net of Discount % of 30 plus days past due to total retained loans, Term loans originated in 2018/2017 Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated Four Years before Latest Fiscal Year Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated Four Years before Latest Fiscal Year Changes of the components of accumulated other comprehensive income (loss) Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Collateral-dependent loans Collateral Dependent Loans [Abstract] Collateral-dependent loans. Number of claims filed Loss Contingency, New Claims Filed, Number Statistical Measurement [Axis] Statistical Measurement [Axis] Preferred stock dividend rate, variable, basis spread Dividend, basis spread on variable rate The percentage points added to the reference rate to compute the dividend rate. Components of mortgage fees and related income [Abstract] Components of mortgage fees and related income Abstract Components of mortgage fees and related income Abstract. Schedule of collateral received Schedule of Customer Securities for which Entity has Right to Sell or Repledge [Table Text Block] Due after five years through 10 years Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, after Year 5 Through 10 Assets held in consolidated securitization VIEs Continuing Involvement with Continued to be Recognized Transferred Financial Assets, Amount Outstanding Less than 660 Refreshed FICO Scores Less than 660 [Member] Loans related to refreshed FICO score that is less than 660. Total goodwill Balance at beginning of period Balance at end of period Goodwill Cost of prior grants of restricted stock units (“RSUs”), performance share units (“PSUs”) 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. Credit Credit Risk [Member] Asset management, administration 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. Other guarantees and commitments, Contractual amount, Expiring in 1 year or less Guarantor Obligations, Maximum Exposure, Undiscounted, Expiring in Less Than One Year Maximum potential amount of future payments (undiscounted), expiring in less than one year, 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. % of 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. Gross and Net Derivative Receivables by Contract and Settlement Type: Offsetting Derivative Assets [Abstract] Assets: Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair value hedges Fair value hedges, net change AOCI, Derivative Qualifying as Hedge, Excluded Component, Parent [Member] Commodity volatility Measurement Input, Price Volatility [Member] Less than 12 months, Gross unrealized losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Difference between aggregate fair value and aggregate remaining contractual principal balance outstanding Fair Value, Option, Aggregate Differences [Abstract] Fair Value Measured at Net Asset Value Per Share Fair Value Measured at Net Asset Value Per Share [Member] Securities Financing Transaction [Line Items] Securities Financing Transaction [Line Items] Goodwill attributed to the business segments and corporate Schedule of Goodwill [Table Text Block] Retained loans Total retained loans Carrying value Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Adjustments to reconcile net income to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Swaps Equity Swap [Member] Impact of derivatives on the Consolidated Balance Sheets Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Cumulative upward carrying value changes Equity Securities without Readily Determinable Fair Value, Upward Price Adjustment, Cumulative Amount Geographic Distribution [Axis] Geographic Distribution [Axis] Net gains/(losses) on sales of loans Gain (Loss) on Sales of Loans, Net Defined benefit pension and OPEB plans Defined benefit pension and OPEB plans, net change Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Days Past Due, 60 or More Financial Asset, Days Past Due, 60 or More [Member] Retained loans that are greater than 60 days past due. 12 months or more, Gross unrealized losses Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Federal Government of Nigeria and Two Major International Oil Companies Federal Government of Nigeria and Two Major International Oil Companies [Member] Federal Government of Nigeria and Two Major International Oil Companies [Member] Aggregate fair value of net derivative payables Derivative, Net Liability Position, Aggregate Fair Value Total allowance for credit losses Financing Receivable and Debt Securities, Allowance For Credit Loss And Off Balance Sheet, Credit Loss, Liability Financing Receivable and Debt Securities, Allowance For Credit Loss And Off Balance Sheet, Credit Loss, Liability Deferred tax (benefit)/expense Deferred Income Tax Expense (Benefit) Investment Holdings [Line Items] Investment Holdings [Line Items] Interest-bearing deposits Interest Expense, Deposits Position [Axis] Position [Axis] Hedging Designation [Domain] Hedging Designation [Domain] Line of credit close criteria, period past due Line of Credit Close Criteria, Period Past Due The period of time for which existing loans outstanding from a borrower are past-due before the borrower's line-of-credit is closed. Dividends declared: Dividends [Abstract] Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Single-notch downgrade Single-notch Downgrade [Member] Describes the impact of a single-notch downgrade of the entity's credit rating. Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net income Net income Net Income (Loss) Attributable to Parent Protection sold credit derivatives ratings/maturity profile - more than 5 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. Credit card Credit Card Loan Portfolio Segment [Member] Portfolio segment of the company's total financing receivables related to credit card receivables. Secured by real estate Real Estate Sector [Member] Tier 1 capital Banking Regulation, Tier One Risk-Based Capital Ratio, Well Capitalized, Minimum Right-of-use assets Operating Lease, Right-of-Use Asset Schedule of loans by portfolio segment Schedule of Loans by Portfolio Segment and Class [Table Text Block] Schedule of loans by portfolio segment, and class, where applicable. Net fair value Credit Risk Derivatives, at Fair Value, Net Income Statement Location [Axis] Income Statement Location [Axis] Interest rate Net interest rate derivatives Interest rate contracts Interest Rate Contract [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Litigation [Abstract] Litigation [Abstract] Litigation. Assumed par value for price input (in dollars per share) Fair Value Inputs, Price per Unit, Assumed Par Fair Value Inputs, Price per Unit, Assumed Par Weighted-average remaining contractual term (in years) of loans with term or payment extensions – after TDR 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 Percentage of portfolio based on carrying value with estimated refreshed FICO scores, Equal to or greater than 660 Percentage of Loans with FICO Scores of 660 Or Greater to Total Retained Loans Percentage of recorded investment in retained loans that have estimated refreshed FICO scores equal or greater than 660. Offsetting assets Offsetting Assets [Table Text Block] Securities gains and losses Debt Securities, Available-for-sale, Realized Gain (Loss) [Abstract] Fair value inputs, liquidation value discount Fair Value Inputs, Liquidation Value Discount Discount based upon experience with actual liquidation values. Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code % of 30 plus days past due to total retained loans, Term loans originated in 2020/2019 Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated Two Years before Latest Fiscal Year Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated Two Years before Latest Fiscal Year Total realized/unrealized gains/(losses) Realized/unrealized gains/(losses), assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Realized and Unrealized Gains (Losses) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Realized and Unrealized Gains (Losses) Additional paid-in capital Additional Paid in Capital, Common Stock Private equity gains/(losses) Principal Investment Gain (Loss) Due after one year through five years Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, after Year One Through Five Derivative payables Derivative Qualifying As Guarantees Payables This element represents the payables portion of types of derivative financial instruments qualifying 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). Noninterest-bearing (included $11,247 and $8,115 at fair value) Noninterest-bearing Deposit Liabilities, Domestic Weighted-average remaining contractual 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 Financing Receivable, Modifications, Pre-Modification, Weighted-Average Remaining Term of Financing Receivables With Term Or Payment Extensions Total commissions and fees Fees And Commissions1 Fees And Commissions1 The Defendants Visa Defendants and Mastercard and Certain Banks [Member] Visa Defendants and Mastercard and Certain Banks [Member] Segments [Axis] Segments [Axis] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Goodwill, MSRs and other intangible assets Goodwill, Servicing Assets at Fair Value, and Other Intangible Assets Goodwill, Servicing Assets at Fair Value, and Other Intangible Assets Entity File Number Entity File Number % of total criticized to total retained loans % of criticized to total retained loans secured by real estate Percentage of Criticized Loans to Total Retained Loans Percentage of total criticized to total retained loans. Period after which criminal information will be dismissed with full compliance with all obligations Loss Contingency, Deferred Prosecution Agreement, Dismissal Period Loss Contingency, Deferred Prosecution Agreement, Dismissal Period Schedule of operating lease income and related depreciation expense Operating Lease, Lease Income [Table Text Block] Greater than 125% and refreshed FICO scores LTV Greater than 125 Percent [Member] Loans related to current estimated LTV ratio greater than 125%. Approximate percentage of Chapter 7 loans 30 days or more past due Financing Receivable, Nonaccrual, Percent Thirty Or More Days Past Due Financing Receivable, Nonaccrual, Percent Thirty Or More Days Past Due Protection sold credit derivatives ratings/maturity profile Protection sold credit derivatives [Abstract] Protection sold credit derivativesratings(a)/maturity profile. Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Financing Receivable, Impaired [Line Items] Financing Receivable, Impaired [Line Items] Schedule of amounts recorded on Consolidated Balance Sheets related to certain cumulative fair value hedge basis adjustments Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Due after 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value Summary of loan sale activities Summary Of Loan Sale Activities [Table 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. Transaction [Domain] Transaction [Domain] Legal expense Legal expense Litigation Settlement, Expense Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Unrealized gains/(losses) on investment securities: OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract] Credit Derivatives by Contract Type [Axis] Credit Derivatives Contract Type [Axis] Net amounts Derivative Assets, Net Exposure After Liquid Securities and/or Cash Collateral Held at Third-Party Custodians, Assets Subject to a Master Netting Arrangement The balance of derivative receivables subject to master netting agreements after balance sheet netting and net of liquid securities and/or cash collateral held at third-party custodians. Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Credit correlation Measurement Input, Credit Correlation [Member] Measurement Input, Credit Correlation [Member] Interchange Litigation Interchange Litigation [Member] The risk of loss associated with the outcome of pending or threatened litigation related to interchange litigation. Loans Insured or Guaranteed by Government Authorities [Domain] Loans Insured or Guaranteed by Government Authorities [Domain] Underlying Asset Class [Axis] Underlying Asset Class [Axis] Active hedging relationships Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) Liability Class [Axis] Liability Class [Axis] Percentage of total revolving loans that are senior lien loans Financing Receivable, Revolving, Percentage of Senior Liens to Total Financing Receivables Financing Receivable, Revolving, Percentage of Senior Liens to Total Financing Receivables Series I Series I Preferred Stock [Member] Series I Preferred Stock. Provision for loan losses Financing Receivable, Credit Loss, Expense (Reversal) Total long-term beneficial interests Long Term Beneficial Interests Long Term Beneficial Interests. Grants in period, weighted average grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 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. Municipal bond vehicles Municipal Bonds [Member] Discontinued hedging relationships Hedged Liability, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Excluded amount of deposits linked to precious metals for which fair value option was not elected Structured Notes, Fair Value Option Not Elected, Balance Structured Notes, Fair Value Option Not Elected, Balance Proceeds from paydowns and maturities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Assets pledged Assets that may be sold or repledged or otherwise used by secured parties Financial Instruments Owned and Pledged as Collateral, Amount Eligible to be Repledged by Counterparty Restricted Cash and Cash Equivalents Items [Line Items] Restricted Cash and Cash Equivalents Items [Line Items] Total consumer, 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. Number of portfolio segments Number of Loan Portfolio Segments Number of Loan Portfolio Segments Options Equity Option [Member] Asset-backed securities, Other Other Asset-backed Securities [Member] Other Asset-backed Securities [Member] Derivatives qualifying as guarantees Schedule of Guarantor Obligations [Table Text Block] Assets Assets [Abstract] Lower than 80% and refreshed FICO scores Debt-to-Value Ratio, Less than 80 Percent [Member] Summary of loan sale activities Summary Of Loan Sale Activities Abstract Summary Of Loan Sale Activities. Other liabilities Other Liabilities [Member] Transfers not qualifying for sale accounting Transfers Accounted for as Secured Borrowings, Assets, Carrying Amount Series R Series R Preferred Stock [Member] Series R Preferred Stock. Obligations of U.S. states and municipalities Obligations of U.S. states and municipalities US States and Political Subdivisions Debt Securities [Member] Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Reconciling Items Segment Reconciling Items [Member] Grants in period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Restrictions on Cash and Cash Equivalents [Table] Restrictions on Cash and Cash Equivalents [Table] Goodwill and Mortgage Servicing Rights Goodwill and Intangible Assets Disclosure [Text Block] Principal forgiven Financing Receivable, Modifications, Principal Forgiven Amount of principal forgiven in financing receivables that have been modified by troubled debt restructurings that occurred. Nonaccrual loans, Fair value over/(under) contractual principal outstanding Fair Value, Option, Loans Held as Assets, Aggregate Amount in Nonaccrual Status, Aggregated Difference Schedule of retained loans purchased, sold and reclassified to held-for-sale Schedule Of Retained Loans Purchases Sales And Transfer Into Held For Sale By Portfolio Segment [Table Text Block] Schedule of retained loans purchases, sales, and transfer into held-for-sale loan portfolio by portfolio segment. Gains/(losses) on loan sales Gain (Loss) on Sale of Mortgage Loans Other financial assets Other Financial Assets [Member] Other Financial Assets [Member] Securitized loans Securitized loans [Member] Securitized loans Member. Other assets Increase (Decrease) in Prepaid Expense and Other Assets Revolving loans within the revolving period Financing Receivable, Excluding Accrued Interest, Revolving Up to 30 days Maturity Less than 30 Days [Member] Due after 10 years Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, after Year 10 Principal-protected debt Principal Protected Debt [Member] Principal Protected Debt. Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Marketing Marketing and Advertising Expense Credit Derivatives [Line Items] Credit Derivatives [Line Items] Risk-Weighted Assets Calculation Methodology [Domain] Banking Regulation, Risk-Weighted Assets Calculation Methodology [Domain] Other level 3 asset and liabilities, net Other Assets (Liabilities), Net, Fair Value Disclosure Other Assets (Liabilities), Net, Fair Value Disclosure Recovery rate Measurement Input, Recovery Rate [Member] Measurement Input, Recovery Rate [Member] Allowance for loan losses Beginning balance Ending balance Total allowance for loan losses Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Amount paid out of monies in account following settlement of dispute Increase (Decrease) in Client Funds Held Swaps Commodity Swap [Member] Commodity Swap [Member] In process of active or suspended foreclosure Financial Asset, In Process of Active or Suspended Foreclosure [Member] Financial Asset, In Process of Active or Suspended Foreclosure [Member] Fair value option, structured notes by balance sheet classification and primary embedded derivative risk Fair Value, Option, Structured Notes By Balance Sheet Classification And Primary Embedded Derivative Risk [Table Text Block] [Table Text Block] for Presents the fair value of structured notes by balance sheet classification and primary embedded derivative risk. Lending- and deposit-related fees Total 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. Deposits [Table] Deposits [Table] Proceeds received from loan sales as cash Proceeds from Sale of Mortgage Loans Held-for-sale Unrealized (gains)/losses on liabilities recorded in OCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Internal Credit Assessment [Domain] Unsettled repurchase and securities loaned agreements Unsettled repurchase and securities lending agreements [Member] Unsettled repurchase and securities lending agreements [Member] Rewards costs and partner payments Rewards and Partner Payments [Member] Rewards and Partner Payments [Member] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] 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. Principal and/or interest deferred Payment Deferral [Member] Arizona ARIZONA Interest Income (Expense), Net [Abstract] Interest Income (Expense), Net [Abstract] Operating revenue: Operating Revenue Abstract Operating Revenue Abstract. U.S. Treasury, GSEs and government agencies U.S. Treasury and government agencies US Treasury and Government [Member] Not U.S. government-guaranteed Excluding US Government Agency Insured Loans [Member] Excluding US Government Agency Insured Loans Allowance for credit losses policy Credit Loss, Financial Instrument [Policy Text Block] Protection sold - credit derivatives 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] 80% to 100% and refreshed FICO scores Debt-to-Value Ratio, 80 to 100 Percent [Member] Realized losses Debt Securities, Available-for-sale, Realized Loss, Excluding Other-than-temporary Impairment 90 or more days past due 90 or more days past due and still accruing 90 days past due Financing Receivable, 90 Days or More Past Due, Still Accruing Schedule of components of card income Disaggregation of Revenue [Table Text Block] Total defined contribution plans Defined Contribution Plan, Cost Weighted-average option adjusted spread Weighted average option adjusted spread Weighted-average option adjusted spread. Due after one year through five years Debt Securities, Available-for-Sale, Weighted Average Yield, Maturity, after Year One Through Five Gains/(losses) recorded in income and other comprehensive income/(loss) Net investment hedge gains and losses Abstract Net investment hedge gains and losses. 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. Total asset management fees Asset Management Fees Asset Management Fees Contractual rate in effect Preferred Stock, Dividend Rate, Percentage Debt Securities, Held-to-maturity [Table] Debt Securities, Held-to-maturity [Table] Noninvestment-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. Discontinued hedging relationships Hedged Asset, Discontinued Fair Value Hedge, Cumulative Increase (Decrease) Net derivative receivables: Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Mortgage-backed securities Mortgage-backed Available-for-sale Securities [Member] Mortgage-backed Available-for-sale Securities [Member] Trading assets, debt and equity instruments Debt Securities, Trading, and Equity Securities, FV-NI Goodwill [Roll Forward] Goodwill [Roll Forward] Capital transition provisions, CECL capital benefit recognized, excluding amount phased out Financing Receivable, Allowance For Credit Loss, Capital Transition Provisions, Benefit Recognized, Excluding Amount Phased Out Financing Receivable, Allowance For Credit Loss, Capital Transition Provisions, Benefit Recognized, Excluding Amount Phased Out Commercial mortgage-backed securities and loans Commercial Mortgage Backed Securites And Loans [Member] Loans, and Securities collateralized by commercial real estate mortgage loans. Transfers (out of) level 3 Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers out of Level 3 Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Total assets measured at fair value on a recurring basis Assets fair value Total assets measured at fair value on a nonrecurring basis Assets, Fair Value Disclosure Depositary Shares, each representing a one-four hundredth interest in a share of 4.625% Non-Cumulative Preferred Stock, Series LL Depositary Shares, One-Four Hundredth Interest in a Share of 4.625% Non-Cumulative Preferred Stock, Series LL [Member] Depositary Shares, One-Four Hundredth Interest in a Share of 4.625% Non-Cumulative Preferred Stock, Series LL Cash reserves at non-U.S. central banks and held for other general purposes Cash Reserves, Foreign Central Banks and Other [Member] Cash Reserves, Foreign Central Banks and Other [Member] Changes in unrealized gains/(losses) included in income related to MSRs Mortgage Servicing Rights Change In Unrealized Gains Losses Included In Income Change in unrealized gains (losses) included in income related to MSRs. Net interest income after provision for credit losses Interest Income (Expense), after Provision for Loan Loss Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Other operating adjustments Other Operating Activities, Cash Flow Statement Total changes in valuation due to inputs and assumptions Servicing Asset at Fair Value, Changes in Fair Value Resulting from Changes in Valuation Inputs or Changes in Assumptions Changes due to market interest rates and other Servicing Asset at Fair Value, Changes in valuation due to inputs and assumptions, market interest rates and other The net increase or decrease in fair value as a result of changes in estimated future prepayments due to changes in market interest rates, and the difference between actual and expected prepayments. Total leverage exposure Total Leverage Exposure Total Leverage Exposure Interest Income and Interest Expense Interest Income and Interest Expense Disclosure [Text Block] Carrying amount of the hedged items Hedged Asset, Fair Value Hedge Available-for-sale securities: Proceeds from Sale and Maturity of Debt Securities, Available-for-sale [Abstract] Total liabilities and stockholders’ equity Liabilities and Equity Term loans originated in 2021/2020 Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Residential real estate Residential Real Estate [Member] Due after five years through 10 years Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling after Five Through Ten Years, Fair Value Accrued interest receivables written off Financing Receivable, Accrued Interest, Writeoff J.P. Morgan Securities LLC J.P. Morgan Securities LLC [Member] J.P. Morgan Securities LLC Securities Financing Transactions Disclosures [Abstract] Securities Financing Transactions Disclosures [Abstract] Proceeds from long-term borrowings Proceeds from Issuance of Long-term Debt and Capital Securities, Net Derivative payables Derivative Financial Instruments, Liabilities [Member] Trading assets (included assets pledged of $98,070 and $102,710) Trading assets Trading assets 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. Interest rate correlation Measurement Input, Interest Rate Correlation [Member] Measurement Input, Interest Rate Correlation [Member] Federal funds sold and securities purchased under resale agreements Interest Income, Federal Funds Sold and Securities Purchased under Agreements to Resell Securities-for-securities Securities-For-Securities Borrow Versus Pledge Transactions [Member] Carrying value of securities loaned where the lender of securities recevied other securities as collateral in a securities lending transaction. Derivative [Line Items] Derivative [Line Items] 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. Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Tier 1 leverage ratio Banking Regulation, Tier One Leverage Capital Ratio, Actual Reclassification adjustment for realized (gains)/losses included in net income, Tax effect Reclassification from AOCI, Current Period, Tax Depreciation expense Depreciation, Lessor Asset under Operating Lease Increase in level 3 assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Period Increase (Decrease) Earnings per Share Earnings Per Share [Text Block] Repurchase Treasury Stock, Value, Acquired, Cost Method Schedule of Credit Derivatives [Table] Schedule of Credit Derivatives [Table] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Beneficial interests issued by consolidated VIEs 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. Minimum Minimum [Member] Criticized performing Criticized Performing [Member] Credit rating classification that is used to describe the credit risk of loans that connote criticized performing, which is a subcategory of noninvestment grade criticized. Criticized grade ratings generally range from the equivalent of "CCC+" to "Caa1 and lower", with criticized performing loans representing those for which interest is still being accrued. Modified loans, payment default, number of payments past due Financing Receivable, Modifications, Subsequent Default, Number of Payments Past Due Financing Receivable, Modifications, Subsequent Default, Number of Payments Past Due 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 - supplemental information [Abstract] Off Balance Sheet Lending Related Financial Instruments Guarantees And Other Commitments Numeric Abstract. Paycheck Protection Program (PPP) Small Business Administration (SBA), CARES Act, Paycheck Protection Program [Member] Small Business Administration (SBA), CARES Act, Paycheck Protection Program [Member] Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items: Effect of Fair Value Hedges on Results of Operations, Liabilities [Abstract] Effect of Fair Value Hedges on Results of Operations, Liabilities [Abstract] Effect of exchange rate changes on cash and due from banks and deposits with banks Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Collateral sold, repledged, delivered or otherwise used Fair Value of Securities Received as Collateral that Have Been Resold or Repledged Total liabilities measured at fair value on a recurring basis Long-term debt, short-term borrowings, and deposits Total liabilities measured at fair value on a nonrecurring basis Financial and Nonfinancial Liabilities, Fair Value Disclosure Reclassifications policy Reclassification, Comparability Adjustment [Policy Text Block] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Interest-bearing, fair value Interest-bearing Foreign Deposit, Time Deposits Purchases Financing Receivable, Purchase Cumulative Effect, Period Of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Total proceeds received from loan sales Proceeds From Sale Of Mortgage Loans Proceeds received from the sale of originated and purchased mortgage loans. Trading liabilities – debt and all other interest-bearing liabilities Interest Expense, Trading Liabilities 12 months or more, Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer Asset-backed securities 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. Equity-FX correlation Measurement Input, Correlation of Equity to Foreign Exchange Rates [Member] Measurement Input, Correlation of Equity to Foreign Exchange Rates [Member] Issuance Stock Issued During Period, Value, New Issues Other assets Other Assets, Excluding Net Asset Value, Fair Value Disclosure Other Assets, Excluding Net Asset Value, Fair Value Disclosure Translation adjustments, net of hedges Translation adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Mortgage Servicing Rights [Roll Forward] Mortgage Servicing Rights M S Rs Fair Value Roll Forward [Roll Forward] Mortgage Servicing Rights MSRs Fair Value Roll Forward. Provision for lending-related commitments Off-Balance Sheet, Credit Loss, Liability, Credit Loss Expense (Reversal) Due in one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Investment securities, net of allowance for credit losses Debt Securities, Net Carrying Amount Debt Securities, Net Carrying Amount 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. Amount of investment securities transferred from AFS to HTM for capital management purposes Debt Securities, Available-for-sale, Transfer to Held-to-maturity, Amount Debt Securities, Available-for-sale, Transfer to Held-to-maturity, Amount Employee Share-based Incentives Share-based Payment Arrangement [Text Block] Total deposits in non-U.S. offices Deposits, Foreign Level 3 Fair Value, Inputs, Level 3 [Member] Permanent modification Permanent Modification [Member] Financing receivables that have been permanently modified by troubled debt restructurings. ROE Segment Reporting Information, Return on average common equity Return on average common equity attributed to the reportable segment. Trading assets Increase (Decrease) in Financial Instruments Used in Operating Activities Securities purchased under resale agreements, Amounts not nettable on the Consolidated balance sheets Securities Purchased under Agreements to Resell, Fair Value of Collateral Series S Series S Preferred Stock [Member] Series S Preferred Stock. Number of reportable segments Number of Reportable Segments Supplemental information Supplemental Information [Abstract] Supplemental Information [Abstract] Redemption of preferred stock Payments for Repurchase of Redeemable Preferred Stock Firm sponsored mortgage and other consumer securitization trusts [Abstract] Firm sponsored mortgage and other consumer securitization trusts Abstract Firm-sponsored mortgage and other consumer securitization trusts. Derivatives qualifying as guarantees Derivatives Qualifying As Guarantees [Member] This element represents types of derivative financial instruments qualifying 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). Changes during the period from: Changes in goodwill during the period Abstract Changes in goodwill during the period Abstract. Senior lien Senior Lien [Member] Accounts payable and other liabilities (included $9,753 and $5,651 at fair value) Accounts Payable and Accrued Liabilities Debt securities and loans Debt Securities and Loans Receivable, Fair Value Disclosure Debt Securities and Loans Receivable, Fair Value Disclosure Risk-based capital metrics: Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract] Details of interest income and interest expense Interest Income and Interest Expense Disclosure [Table Text Block] Maximum length of time hedged in forecasted transactions, open cash flow hedges Maximum Length of Time Hedged in Cash Flow Hedge, Open Cash Flow Hedge For an open cash flow hedge, maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] CFTC U.S. Commodity Futures Trading Commission [Member] U.S. Commodity Futures Trading Commission Treasury stock, at cost Treasury Stock, Common [Member] Business combinations Goodwill, Acquired During Period Basis of presentation policy Basis of Accounting, Policy [Policy Text Block] Federal Republic of Nigeria Litigation Federal Republic of Nigeria Litigation [Member] Federal Republic of Nigeria Litigation [Member] PSUs Performance Shares [Member] Commitments and contingencies (refer to Notes 22, 23 and 24) Commitments and Contingencies Accumulated other comprehensive income/(loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Emerging Growth Company Entity Emerging Growth Company Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Repurchase Agreements and Similar Transactions, Maturity Periods [Domain] Fair value of securities restricted in relation to customer activity Securities Reserve Deposit Required and Made Corporate & Investment Bank Corporate & Investment Bank [Member] Corporate & Investment Bank [Member] Trial modification Trial Modification [Member] Financing receivables that have been modified by troubled debt restructurings that are currently in the trial modification period. Receivables [Abstract] Receivables [Abstract] Notional amount of derivative contracts outstanding [Abstract] Notional amounts Notional Disclosures [Abstract] Investment banking fees Total investment banking fees Investment Banking Revenue Held-to-maturity securities: Proceeds from Sale and Maturity of Held-to-maturity Securities [Abstract] Connecticut CONNECTICUT Colorado COLORADO Securities Financing Transaction [Axis] Securities Financing Transaction [Axis] Cover [Abstract] Cover [Abstract] Number of claims settled Loss Contingency, Claims Settled, Number CET1 capital Banking Regulation, Common Equity Tier One Risk-Based Capital Ratio, Capital Adequacy, Minimum Series Q Series Q Preferred Stock [Member] Series Q Preferred Stock. Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Nonaccrual [Table] Financing Receivable, Nonaccrual [Table] 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. Number of years before payment default under a modified loan Number of Years Before Payment Default Under a Modified Loan The number of years before a payment default under a modified loan. California CALIFORNIA Total U.S. Geographic Distribution, Domestic [Member] 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. Professional and outside services Professional and Contract Services Expense 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. Financial Instrument [Axis] Financial Instrument [Axis] Short-term borrowings Short-term borrowings Borrowings [Member] Available-for-sale securities (amortized cost of $231,904 and $308,254, net of allowance for credit losses; included assets pledged of $15,162 and $18,268) Available-for-sale securities Fair value Fair value Debt Securities, Available-for-Sale, Excluding Accrued Interest Off-balance sheet lending-related financial commitments, Contractual amount, Expiring after 3 years through 5 years Off-Balance Sheet Lending-Related Financial Commitments, Contractual Amount, Expiring Between Three and Five Years The contractual amount of off-balance sheet lending-related financial instruments (e.g., commitments and guarantees), expiring between three and five years, 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. Federal Republic of Nigeria Federal Republic of Nigeria [Member] Federal Republic of Nigeria [Member] Securities Financing Transaction [Domain] Securities Financing Transaction [Domain] Advisory Investment Banking Advisory Fee Revenue Fees earned for mergers, acquisitions, divestitures, restructurings, and other types of financial advisory services. Dividends paid Payments of Dividends Fair value over/(under) contractual principal outstanding Changes Measurement [Member] Third-party mortgage loans serviced Mortgage Loans Serviced, Third Party, At Period End Third party mortgage loans serviced at period end. IR-FX correlation Measurement Input, Correlation of Interest Rates to Foreign Exchange Rates [Member] Measurement Input, Correlation of Interest Rates to Foreign Exchange Rates [Member] Gross derivative receivables Total derivative receivables recognized on the Consolidated balance sheets, Gross derivative receivables Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement Carrying value Contractual principal outstanding Reported Value Measurement [Member] Gross unrealized losses Debt Securities, Held-to-maturity, Accumulated Unrecognized Loss After-tax unamortized unrealized gains/(losses) related to transfer of AFS securities to HTM OCI, Debt Securities, Available-for-Sale, Transfer to Held-to-Maturity, Adjustment from AOCI for Amortization of Gain (Loss), after Tax Lending-related commitments by impairment methodology Off-Balance Sheet Lending-Related Financial Instruments, Guarantees and Other Commitments [Abstract] Off Balance Sheet Lending Related Financial Instruments Guarantees And Other Commitments Abstract. Total investment securities Investment Income, Interest Schedule of uses and disclosure of derivatives Schedule of Uses and Disclosure of Derivatives [Table Text Block] Schedule of Uses and Disclosure of Derivatives [Table Text Block] Common stock Common Stock [Member] Federal funds purchased and securities loaned or sold under repurchase agreements Interest Expense, Federal Funds Purchased and Securities Sold under Agreements to Repurchase 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). Series CC Series CC Preferred Stock [Member] Series CC Preferred Stock [Member] Schedule of pledged assets Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block] Gross and Net Derivative Payables by Contract and Settlement Type: Offsetting Derivative Liabilities [Abstract] Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Gross unrealized losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Treasury stock, at cost (in shares) Treasury Stock, Common, Shares Interest-bearing, fair value Interest-bearing Domestic Deposit, Time Deposits Hedging Designation [Axis] Hedging Designation [Axis] Investment securities losses Investment securities gains/(losses) Debt Securities, Available-for-sale, Realized Gain (Loss) Securities borrowed Increase (Decrease) in Cash Collateral for Borrowed Securities Shares issued and commitments to issue common stock for employee share-based compensation awards, and related tax effects APIC, Share-based Payment Arrangement, Recognition and Exercise Total noncash compensation expense related to employee share-based incentive plans Share-based Payment Arrangement, Noncash Expense Over-the-counter (“OTC”) Over the Counter [Member] Long-term debt Long-term Debt [Member] Accumulated Other Comprehensive Income (Loss) [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Securities borrowed (included $73,995 and $81,463 at fair value) Securities borrowed, Amounts presented on the Consolidated balance sheets Securities Borrowed Series MM Series MM Preferred Stock [Member] Series MM Preferred Stock Illinois ILLINOIS Securities loaned and other Securities Loaned, Not Subject to Master Netting Arrangement Deduction Equity-IR correlation Measurement Input, Correlation of Equity to Interest Rates [Member] Measurement Input, Correlation of Equity to Interest Rates [Member] Allowance for Credit Losses Allowance for Credit Losses [Text Block] Net change, Tax effect Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Beneficial interests issued by consolidated VIEs Beneficial interests issued by consolidated variable interest entities [Member] Beneficial interests issued by consolidated variable interest entities. Contractual service fees, late fees and other ancillary fees included in income Contractually Specified Servicing Fees, Amount Subordinated securities purchased in connection with CIB's secondary market-making activities 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. Total administration fees Administrative Services Revenue1 Administrative Services Revenue1 Purchases Payments to Acquire Debt Securities, Available-for-sale Number of loans modified Financing Receivable, Modifications, Number of Contracts Georgia GEORGIA Assets Fair Value Hedges, Assets [Abstract] Fair Value Hedges, Assets [Abstract] Income statement impact of excluded components Gain (Loss) from Components Excluded from Assessment of Fair Value Hedge Effectiveness, Net [Abstract] Total investment securities, net of allowance for credit losses Debt Securities, Available-for-Sale and Held-to-Maturity, after Allowance for Credit Loss [Abstract] % of 90 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. Derivative notional amounts Stable value contracts with contractually limited exposure Derivative, Notional Amount Other changes in MSR asset fair value due to other inputs and assumptions in model Risk Management Revenue, Changes in Fair Value of Mortgage Servicing Rights Resulting from Changes in Other Valuation Inputs or Changes in Assumptions 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 other inputs, assumptions, or model used to calculate the fair value of servicing assets. Weighted average FICO Financing Receivable, Weighted Average FICO Financing Receivable, Weighted Average FICO Credit Loss [Abstract] Credit Loss [Abstract] Net income applicable to common equity Net Income Applicable to Common Equity Net income applicable to common equity before adjustments for participating securities. Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Long-term debt, Fair value over/(under) contractual principal outstanding Fair Value, Option, Aggregate Differences, Long-term Debt Instruments Credit-related notes Hybrid Instrument [Member] Florida FLORIDA Gain (Loss) on Derivative Instruments, Net, Pretax [Abstract] Gain (Loss) on Derivative Instruments, Net, Pretax [Abstract] Total liabilities Liabilities Level 3 assets as a percentage of total firm assets at fair value Level Three Assets As Percentage Of Total Firm Assets At Fair Value Level Three Assets As Percentage Of Total Firm Assets At Fair Value Internal Credit Assessment [Axis] Internal Credit Assessment [Axis] Loans reported as trading assets: Changes in instrument-specific credit risk Loans Reported as Trading Assets, Changes in Instrument-Specific Credit Risk [Member] Loans Reported as Trading Assets, Changes in Instrument-Specific Credit Risk [Member] Nonprincipal-protected debt Non Principal Protected Debt [Member] Non Principal Protected Debt. External Credit Rating by Grouping [Axis] External Credit Rating by Grouping [Axis] Consolidation Items [Axis] Consolidation Items [Axis] Measurement Input Type [Axis] Measurement Input Type [Axis] Leases Lessor, Operating Leases [Text Block] Common stock, shares issued (in shares) Common Stock, Shares, Issued Total pledged assets Security Owned and Pledged as Collateral, Fair Value Preferred stock, shares issued (in shares) Shares (in shares) Preferred Stock, Shares Issued Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Interest rate spread volatility Measurement Input, Interest Rate Spread [Member] Measurement Input, Interest Rate Spread [Member] Series HH Series HH Preferred Stock [Member] Series HH Preferred Stock [Member] Due in one year or less Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Amortized cost Debt Securities, Held-to-Maturity, Excluding Accrued Interest, before Allowance for Credit Loss Investment Holdings [Table] Investment Holdings [Table] Entity Address, City or Town Entity Address, City or Town Portfolio-based Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Loss severity Measurement Input, Loss Severity [Member] Servicing fees collected Cash Flows Between Transferor and Transferee, Servicing Fees Residential mortgage Residential Mortgage [Member] Accumulated other comprehensive income/(loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Troubled debt restructuring on financing receivables nature and extent of modifications Troubled Debt Restructurings on Financing Receivables, Nature and Extent of Modifications [Table Text Block] Tabular disclosure of financing receivables and troubled debt restructurings, with detail related to the nature and extent of modifications. Securities borrowed, Net amounts Securities Borrowed, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election Foreign exchange Foreign Exchange [Member] Cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Balance Sheet Location [Axis] Balance Sheet Location [Axis] Accumulated Other Comprehensive Income/(Loss) Comprehensive Income (Loss) Note [Text Block] Approximate percentage rated at least AA+ Debt Securities, Held-To-Maturity, External Credit Rating, Percent Rated AA Plus Or Higher Debt Securities, Held-To-Maturity, External Credit Rating, Percent Rated AA Plus Or Higher Massachusetts MASSACHUSETTS Loan Restructuring Modification [Domain] Loan Restructuring Modification [Domain] Measurement Frequency [Domain] Measurement Frequency [Domain] Change in unrealized gains/(losses) related to financial instruments held Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss) Interest expense Total interest expense Interest Expense 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] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Firm-sponsored mortgage and other consumer securitization trusts Firm Sponsored Mortgage And Other Consumer Securitization Trusts [Table 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. % of 30 plus days past due to total retained loans, Term loans originated prior to 2018/2017 Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated Five or More Years before Latest Fiscal Year Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated Five or More Years before Latest Fiscal Year Greater than 90 days Maturity Greater than 90 Days [Member] Loans repurchased or option to repurchase Loans Repurchased Or Loans With The Option To Repurchase Loans repurchased or loans with the option to repurchase. % of 30 plus days past due to total retained loans, Revolving loans converted to term loans Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Financing Receivable, Converted to Term Loan Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Financing Receivable, Converted to Term Loan Retained earnings Retained Earnings (Accumulated Deficit) Trading liabilities Trading Liabilities [Member] Securities purchased under resale agreements: Securities Purchased under Agreements to Resell [Abstract] Issue date Preferred Stock Issue Date The preferred stock issue date. Assets that may not be sold or repledged or otherwise used by secured parties Financial Instruments Owned and Pledged as Collateral, Amount Not Eligible to be Repledged by Counterparty Gross recoveries collected Financing Receivable, Allowance for Credit Loss, Recovery Residential conforming mortgage intended for sale to U.S. GSEs and government agencies 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 Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Entity Filer Category Entity Filer Category Schedule of information related to operating leases Lessee, Operating Lease, RIght-of-Use Assets and Lease Liabilities [Table Text Block] Lessee, Operating Lease, RIght-of-Use Assets and Lease Liabilities [Table Text Block] % of 90 plus days past due to total retained loans, Revolving loans converted to term loans Percentage of Loans Ninety Plus Days Past Due to Total Retained Loans, Financing Receivable, Converted to Term Loan Percentage of Loans Ninety Plus Days Past Due to Total Retained Loans, Financing Receivable, Converted to Term Loan Comprehensive Income Loss [Line Items] Comprehensive Income Loss [Line Items] Mortgage servicing rights MSRs Servicing Contracts [Member] Securities sold under repurchase agreements, Amounts netted on the Consolidated balance sheets Securities Sold under Agreements to Repurchase, Asset Total estimated fair value Fair value Estimate of Fair Value Measurement [Member] % of 90 plus days past due to total retained loans, Revolving loans within the revolving period Percentage of Loans Ninety Plus Days Past Due to Total Retained Loans, Financing Receivable, Revolving Percentage of Loans Ninety Plus Days Past Due to Total Retained Loans, Financing Receivable, Revolving Held-to-maturity securities Debt Securities, Held-to-maturity, Maturity [Abstract] Exchange & clearing house guarantees and commitments Exchange and Clearing House Guarantees and Commitments [Member] Exchange and Clearing House Guarantees and Commitments [Member] Interest in securitized assets in nonconsolidated VIEs Transferor's Interests in Transferred Financial Assets, Fair Value Schedule options to repurchase delinquent loans Schedule of Securities Repurchased And Option to Repurchase Delinquent Securities [Table Text Block] Schedule of Securities Repurchased And Option to Repurchase Delinquent Securities [Table Text Block] Multifamily Multifamily [Member] Schedule Of Mortgage Fees And Related Income [Line Items] Schedule Of Mortgage Fees And Related Income [Line Items] Schedule Of Mortgage Fees And Related Income Changes in level 3 recurring fair value measurements [Abstract] Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Card income Total card income Fees And Commissions, Credit And Debit Cards1 Fees And Commissions, Credit And Debit Cards1 Noninterest-bearing and interest-bearing deposits Noninterest Bearing And Interest Bearing Deposits [Table Text Block] Noninterest-bearing and interest-bearing deposits. % of criticized nonaccrual to total retained loans % of criticized nonaccrual loans to total retained loans secured by real estate Percentage of Loans on Nonaccrual Status to Total Retained Loans Percentage of nonaccrual loans to total retained loans. All other Other Geographical Areas [Member] Other geographical areas. Other Other Modifications [Member] Other Modifications [Member] Retained loans reclassified to held-for-sale Financing Receivable, Reclassification to Held-for-sale Amendment Flag Amendment Flag Wholesale Commercial Portfolio Segment [Member] Equity Components [Axis] Equity Components [Axis] Available-for-sale securities, amortized cost, net of allowance for credit losses Amortized cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Michigan MICHIGAN Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Deposits Deposits Deposits, Fair Value Disclosure Securities borrowed Interest Income Securities Borrowed Interest income on securities that are borrowed in connection with securities financing activities. Federal funds purchased and securities loaned or sold under repurchase agreements Federal Funds Purchased and Securities Sold under Agreements to Repurchase [Member] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Derivatives Change in Unrealized Gain (Loss) on Fair Value Hedging Instruments Net cash collateral receivables Derivative Asset, Collateral, Obligation to Return Cash, Offset VISA VISA [Member] VISA [Member] Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Federal funds sold and securities purchased under resale agreements Federal Funds Sold and Securities Borrowed or Purchased under Agreements to Resell, Fair Value Disclosure Segment results and reconciliation Schedule of Segment Reporting Information, by Segment [Table Text Block] Interest in VIEs Net Assets Technology, communications and equipment expense Communications and Information Technology U.S. offices Deposits, Domestic [Abstract] Loans Interest and Fee Income, Loans and Leases J.P. Morgan Securities LLC, JPMorgan Chase Bank, N.A. and J.P. Morgan Securities plc J.P. Morgan Securities LLC, JPMorgan Chase Bank, N.A. and J.P. Morgan Securities plc [Member] J.P. Morgan Securities LLC, JPMorgan Chase Bank, N.A. and J.P. Morgan Securities plc Other guarantees and commitments, Contractual amount, Expiring after 1 year through 3 years Guarantor Obligations, Maximum Exposure, Undiscounted, Expiring Between One and Three Years Maximum potential amount of future payments (undiscounted), expiring between one and three years, 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. Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Schedule of Noninterest revenue [Line Items] Schedule of Non interest Revenue [Line Items] Schedule of Non-interest Revenue [Line Items] Debt and equity instruments, excluding loans Debt and Equity Instruments, Excluding Loans [Member] Debt and Equity Instruments, Excluding Loans [Member] Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Credit card lending-related commitments not permitted to have an allowance for credit losses Off-Balance Sheet Lending-Related Financial Commitments, Allowance For Credit Loss Not Permitted, Contractual Amount, Evaluated At Portfolio-Based Impairment Methodology Off-Balance Sheet Lending-Related Financial Commitments, Allowance For Credit Loss Not Permitted, Contractual Amount, Evaluated At Portfolio-Based Impairment Methodology Product and Service [Axis] Product and Service [Axis] Deposits with banks Interest-bearing Deposits [Member] Fair Value Option, Disclosures [Table] Fair Value Option, Disclosures [Table] Equity securities for which quoted prices are not readily available Equity securities adjusted based on the measurement alternative Carrying value Equity Securities without Readily Determinable Fair Value, Amount Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Cash flows received on interests Cash Flows Between Transferor and Transferee, Receipts on Transferor's Interest in Transferred Financial Assets, Other Due in one year or less Debt Securities, Held-to-Maturity, Weighted Average Yield, Maturity, Year One Fair value assets and liabilities measured on recurring basis - supplemental data Fair Value Assets Measured On Recurring Basis Numeric [Abstract] Three-month term SOFR Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) [Member] Mortgage fees and related income 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. Louisiana LOUISIANA 90 or more days past due and government guaranteed, Fair value over/(under) contractual principal outstanding Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due, Aggregate Difference Statement [Line Items] Statement [Line Items] Asset-specific Off Balance Sheet Lending-Related Financial Commitments, Contractual Amount, Evaluated at Asset-Specific Impairment Methodology 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. Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Settlement amount Litigation Settlement, Amount Awarded to Other Party Debt securities and loans, measurement input Debt Securities and Loans Receivable, Measurement Input Debt Securities and Loans Receivable, Measurement Input Asset & Wealth Management Asset and Wealth Management Segment [Member] Asset and Wealth Management Segment [Member] Schedule of financing receivable credit quality indicators Financing Receivable Credit Quality Indicators [Table Text Block] External Credit Rating by Grouping [Domain] External Credit Rating by Grouping [Domain] Securities impairment Securities Impairment AFS & HTM [Table Text Block] This item represents the fair value of securities categorized as AFS and HTM 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. Total assets held by securitization VIEs Continuing Involvement with Transferred Financial Assets, Principal Amount Outstanding Net gains/(losses) on sales of loans and lending-related commitments Gain (Loss) on Sale of Financing Receivable SLR Banking Regulation, Supplementary Leverage Ratio, Well Capitalized, Minimum 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. Securities borrowed, Amounts not nettable on the Consolidated balance sheets Securities Borrowed, Fair Value of Collateral Noninterest expense Noninterest Expense [Abstract] Commercial Banking Commercial Banking [Member] Commercial Banking. Corporate Corporate, Non-Segment [Member] Changes due to collection/realization of expected cash flows Servicing Asset at Fair Value, Changes due to collection/realization of expected cash flows Changes in servicing asset fair value due to collection/realization of expected cash flows. Total capital Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum Transfers into level 3 Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3 Tier 1 capital ratio Banking Regulation, Tier One Risk-Based Capital Ratio, Actual Off-balance sheet lending-related financial commitments, Carrying value Total 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. Unfunded commitments Variable Interest Entity, Reporting Entity Involvement, Unfunded Commitments Variable Interest Entity, Reporting Entity Involvement, Unfunded Commitments Short-term borrowings Interest Expense, Short-term Borrowings Pension and Other Postretirement Employee Benefit Plans Retirement Benefits [Text Block] Asset Class [Axis] Asset Class [Axis] Noncash compensation expense related to employee stock-based incentive plans Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Recognition of (after-tax) net losses related to cash flow hedges in Income Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Basic earnings per share Earnings Per Share, Basic, Two Class Method [Abstract] Commitments with collateral Other Letters of Credit, Supported by Collateral The contractual amount of others letters of credit supported by collateral. Total assets Fair value of assets held by VIE Total assets Assets Forward equity price Measurement Input, Forward Equity Price [Member] Measurement Input, Forward Equity Price [Member] Loan balances by portfolio segment: Financing Receivable, after Allowance for Credit Loss [Abstract] Total nonrecurring fair value gains/(losses) Fair Value, Option, Changes in Fair Value, Gain (Loss) Residential mortgage-backed securities and loans Residential Mortgage Backed Securities And Loans [Member] Loans, and Securities collateralized by residential real estate mortgage loans. Cash interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Geographical [Domain] Geographical [Domain] JPMorgan Chase & Co. Parent Company [Member] Fair Value Inputs Assets And Liabilities Quantitative Information [Table] Fair Value Inputs Assets And Liabilities Quantitative Information [Table] Schedule of the inputs used in the fair value measurement of assets and liabilities. This disclosure may include, but is not limited to, the fair value of the asset and liability, valuation technique used to measure fair value, the inputs used to measure fair value, the ranges of the inputs, and the weighted averages of the inputs. Securitization activity [Abstract] Securitization Activity [Abstract] Securitization activity. Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Derivative Contract [Domain] Derivative Contract [Domain] GSIB surcharge GSIB Surcharge A specific risk-based capital surcharge applied to a Global Systemically Important Bank (“GSIB”). Institutions are identified as GSIBs by the Financial Stability Board (“FSB”). Gross charge-offs Financing Receivable, Allowance for Credit Loss, Writeoff Available-for-sale securities Debt Securities, Available-for-sale, Continuous Unrealized Loss Position [Abstract] Debt Securities, Available-for-sale, Continuous Unrealized Loss Position [Abstract] Equity correlation Measurement Input, Equity Correlation [Member] Measurement Input, Equity Correlation [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. U.S. GSEs and government agencies Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Cumulative Effect, Period Of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Risk management: Risk management Abstract Risk management Abstract. Securities purchased under resale agreements where an appropriate legal opinion has not been either sought or obtained, Gross asset balance Securities Purchased under Agreements to Resell, Not Subject to Master Netting Arrangement Net cash provided by/(used in) operating activities Net Cash Provided by (Used in) Operating Activities Short-term borrowings (included $16,879 and $20,015 at fair value) Short-term Debt Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Interest rate volatility Measurement Input, Interest Rate Volatility [Member] Measurement Input, Interest Rate Volatility [Member] Overhead ratio Segment Reporting Information Overhead Ratio Overhead ratio attributed to the reportable segment. Variable Interest Entities, consolidated and nonconsolidated Qualitative and Quantitative Information, Transferor's Continuing Involvement in Transferred Financial Assets, Transfer or Transferee [Domain] Ohio OHIO Asset management fees Investment Advisory, Management and Administrative Fees [Abstract] Investment Advisory, Management and Administrative Fees [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Trading loans Loans Loans reported as trading assets 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. Trading assets Debt Securities, Trading [Member] Debt Securities, Trading [Member] Weighted-average basic shares (in shares) Total weighted-average basic shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted earnings per share (in dollars per share) Net income per share (in dollars per share) Earnings Per Share, Diluted Segments [Domain] Segments [Domain] Securitization activities Securitization Activities [Table Text Block] Securitization activities. New York NEW YORK Loan sale and securitization-related indemnifications, Mortgage repurchase liability, Carrying value Indemnification Agreements, Loan Sale and Securitization, Mortgage repurchase liability: Carrying Value Indemnification Agreements, Loan Sale and Securitization, Mortgage repurchase liability: Carrying Value Securities borrowed where an appropriate legal opinion has not been either sought or obtained Securities Borrowed, Not Subject to Master Netting Arrangement Deduction Add: Dilutive impact of SARs and employee stock options, unvested PSUs and nondividend-earning RSUs (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Total trading revenue Trading Gain (Loss) Commercial and industrial Commercial and Industrial Sector [Member] Futures and forwards Interest Rate Future and Forward [Member] Interest Rate Future and Forward [Member] Penalty paid Loss Contingency, Damages Paid, Value Derivatives - Gains/(losses) recorded in OCI Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax Cash income taxes paid, net Income Taxes Paid, Net Available-for-sale securities, Average yield Available For Sale Securities, Debt Maturities, Single Maturity Date, Average Yield [Abstract] Available For Sale Securities, Debt Maturities, Average Yield, Single Maturity Date [Abstract] New Jersey NEW JERSEY Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent SLR Banking Regulation, Supplementary Leverage Ratio, Actual Asset-specific Off-Balance Sheet, Credit Loss, Liability, Individually Evaluated For Impairment The asset specific allowance for lending related commitments. All other Fees And Commissions, Mortgage Banking And Related, All Other Fees And Commissions, Mortgage Banking And Related, All Other Corporate debt securities Corporate Debt Securities, Available-for-sale [Member] Corporate Debt Securities, Available-for-sale Other comprehensive income/(loss), after–tax Other Comprehensive Income (Loss), Net of Tax [Abstract] Pennsylvania PENNSYLVANIA Collateral posted Collateral Already Posted, Aggregate Fair Value Loans measured at fair value of collateral less cost to sell Financing Receivable, Collateral Dependent Loans, At Fair Value Reflects the carrying amount of impaired collateral dependent loans at fair value less cost to sell. All other performing loans Fair Value Options Other Performing Loans Fair Value Options Other Performing Loans. Corporate debt securities Corporate debt securities Corporate Debt Securities [Member] Percentage, sum of items by type, may exceed Percentage, Sum of Items by Type, May Exceed In a group of items by type, the percentage that the sum of the items may exceed due to the inclusion of some items in more than one category. For example, in loan modifications, some loans may have more than one type of concession granted on the loan, so a sum of all types of loan modifications granted would exceed 100%. Spot, futures and forwards Commodity Spot, Future and Forward [Member] Commodity Spot, Future and Forward [Member] Weighted-average interest rate of loans with interest rate reductions – after TDR Weighted-average interest rate of loans – 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. VIEs consolidated by the Firm Variable Interest Entity, Primary Beneficiary [Member] Trading Activity [Axis] Trading Activity [Axis] Term loans originated in 2022/2021 Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Percentage of portfolio based on carrying value with estimated refreshed FICO scores, No FICO available Percentage of Loans with No FICO Score Available Percentage of Loans with No FICO Score Available Other Other Debt and Equity Instruments [Member] Represents other types of debt and equity instruments. Net (losses) as a result of measurement alternative Downward carrying value changes/impairment Equity Securities without Readily Determinable Fair Value, Downward Price Adjustment, Annual Amount 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] Schedule of re-securitizations Schedule of Variable Interest Entities [Table Text Block] 30–89 days past due and still accruing Financial Asset, 30 to 89 Days Past Due, and Still Accruing [Member] [Member] Financial Asset, 30 to 89 Days Past Due, and Still Accruing [Member] [Member] Accumulated other comprehensive income/(loss) Accumulated other comprehensive income/(loss) AOCI Attributable to Parent [Member] Other assets (included $18,940 and $14,753 at fair value and assets pledged of $10,267 and $5,298) Other Other Assets Transfers into level 3 Transfers from level 2 into level 3, assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3 Financial Instruments [Domain] Financial Instruments [Domain] Purchased options Long [Member] Derivative payables where an appropriate legal opinion has not been either sought or obtained Derivative Liability, Not Subject to Master Netting Arrangement Trading assets - debt instruments Interest Income, Trading Assets Amount of interest income earned from debt and equity financial instruments classified as (1) trading securities and (2) derivative assets. Class B Common Class B [Member] Provision for credit losses Provision for Loan, Lease, and Other Losses Net derivative payables Derivatives Liabilities, Subject to Master Netting Arrangement Fair values as of the balance sheet date of liabilities subject to master netting agreements resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of the master netting arrangements. Contractual lending-related commitments, fair value Other guarantees and commitments, Carrying value Guarantor Obligations, Net of Other Commitments, Current Carrying Value Guarantor Obligations, Net of Other Commitments, Current Carrying Value Entity Central Index Key Entity Central Index Key Texas TEXAS Net unrealized gains/(losses) arising during the period/Translation, Pre-tax OCI, before Reclassifications, before Tax, Attributable to Parent Schedule of Fair Value, Off-balance Sheet Risks [Table] Schedule of Fair Value, Off-balance Sheet Risks [Table] Schedule of Held-to-maturity Securities [Line Items] Schedule of Held-to-maturity Securities [Line Items] Interest rate reduction Contractual Interest Rate Reduction [Member] Total capital Banking Regulation, Total Capital, Actual Net rental expense Lease, Cost OCI impact Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), after Adjustments, before Tax [Abstract] Auto and other Automobile Loan [Member] Depositary Shares, each representing a one-four hundredth interest in a share of 5.75% Non-Cumulative Preferred Stock, Series DD Depositary Shares, One-Four Hundredth Interest in a Share of 5.75% Non-Cumulative Preferred Stock, Series DD [Member] Depositary Shares, One-Four Hundredth Interest in a Share of 5.75% Non-Cumulative Preferred Stock, Series DD [Member] Asset-specific Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Equity volatility Measurement Input, Equity Volatility [Member] Measurement Input, Equity Volatility [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Total capital ratio Banking Regulation, Total Risk-Based Capital Ratio, Actual Mortgage-backed securities, Residential - nonagency Residential mortgage-backed securities Residential mortgage Residential Mortgage Backed Securities [Member] Lending-related fees Fees and Commissions, Lending Activities Fees and Commissions, Lending Activities All other income Other Income [Member] Held-for-sale Financing Receivable, Held-for-Sale, Not Part of Disposal Group, after Valuation Allowance Deposits with banks Interest Income, Deposits with Financial Institutions Federal funds purchased and securities loaned or sold under repurchase agreements (included $156,340 and $126,435 at fair value) Federal Funds Purchased and Securities Sold under Agreements to Repurchase Total lending-related commitments Off-Balance Sheet Lending-Related Financial Commitments, Excluding Commitments For Which Allowance For Credit Loss Not Permitted, Contractual Amount Off-Balance Sheet Lending-Related Financial Commitments, Excluding Commitments For Which Allowance For Credit Loss Not Permitted, Contractual Amount Trading Symbol Trading Symbol Capital transition provisions, CECL capital benefit recognized Financing Receivable, Allowance For Credit Loss, Capital Transition Provisions, Benefit Recognized Financing Receivable, Allowance For Credit Loss, Capital Transition Provisions, Benefit Recognized Total operating revenue Operating Revenue, Net, Real Estate Mortgages Total net operating revenue related to real estate mortgage servicing activity. Securities sold under repurchase agreements, Amounts not nettable on the Consolidated balance sheets Securities Sold under Agreements to Repurchase, Fair Value of Collateral Accounts payable and other liabilities Accounts Payable [Member] Net derivative receivables Net derivative receivables Total derivative receivables recognized on the Consolidated balance sheets, Net derivative receivables Derivative Asset Asset-specific Financing Receivable, Individually Evaluated for Impairment Securities purchased under resale agreements, Net amounts Securities Purchased under Agreements to Resell, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items] Total gross unrealized losses Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss Proceeds from issuance of preferred stock Proceeds from Issuance of Preferred Stock and Preference Stock Overnight and continuous Maturity Overnight and Continuous [Member] Maturity Overnight and Continuous [Member] Depositary Shares, each representing a one-four hundredth interest in a share of 6.00% Non-Cumulative Preferred Stock, Series EE Depositary Shares, One-Four Hundredth Interest in a Share of 6.00% Non-Cumulative Preferred Stock, Series EE [Member] Depositary Shares, One-Four Hundredth Interest in a Share of 6.00% Non-Cumulative Preferred Stock, Series EE [Member] Proceeds from sales Proceeds from Sale of Debt Securities, Available-for-sale Deposits [Abstract] Deposits [Abstract] Derivative receivables Derivative Financial Instruments, Assets [Member] Net liquidation losses/(recoveries) Net Credit Loss on Loans Managed or Securitized or Asset-backed Financing Arrangement Inquiry Concerning Preservation Requirements Inquiry Concerning Preservation Requirements [Member] Inquiry Concerning Preservation Requirements Loan sale and securitization-related indemnifications, 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. Schedule of Goodwill [Table] Schedule of Goodwill [Table] Without an allowance Financing Receivable, Nonaccrual, No Allowance Credit and funding adjustments: Impact of credit adjustments on earnings Abstract Impact of credit adjustments on earnings. Net change in: Additional Cash Flow Elements, Financing Activities [Abstract] Multi-seller conduits Firm-administered multi-seller conduits Firm Administered Multi Seller Conduits [Member] Firm-sponsored multi-seller conduits. Changes in MSR asset fair value due to collection/realization of expected cash flows Operating Revenue, Real Estate Mortgages, Changes in Fair Value of Mortgage Servicing Rights, Changes Due To Collection/Realization Of Expected Cash Flows Operating revenue related to real estate mortgage servicing activity, representing the net increase or decrease in fair value as a result of changes in servicing asset fair value due to collection/realization of expected cash flows. Derivatives CVA Derivative, Gain (Loss) on Derivative, Net, CVA For credit valuation adjustments (“CVA”), amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Net income per common share data Earnings Per Share, Basic and Diluted [Abstract] 150 or more days past due Financial Asset, Equal to Greater than 150 Days Past Due [Member] Retained loans that are 150 days or more past due. Changes in MSR asset fair value due to market interest rates and other Risk Management Revenue, Changes in Fair Value of Mortgage Servicing Rights, Changes in Market Interest Rates And Other 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 estimated future prepayments due to changes in market interest rates, and the difference between actual and expected prepayments. Entities [Table] Entities [Table] Trading liabilities Trading Liabilities, Fair Value Disclosure Compensation expense Labor and Related Expense Broker price opinions Broker Price Opinion Valuation Technique [Member] Broker price opinion, valuation technique used to measure fair value. Investments [Domain] Securitized assets by category [Domain] Investments [Domain] Series JJ Series JJ Preferred Stock [Member] Series JJ Preferred Stock Minimum leverage-based capital ratios Leverage -based Capital Ratios [Abstract] Leverage -based Capital Ratios U.S. GSE obligations US Government-sponsored Enterprises Debt Securities [Member] Standby letters of credit, other financial guarantees and other letters of credit Standby letters of Credit Other Financial Guarantees and Other Letters of Credit [Table Text Block] Schedule of standby letters of credit, other financial guarantees and other letters of credit. Long-term debt Other Long-term Debt [Abstract] Term loans originated prior to 2018/2017 Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Loans: Other changes in fair value Loans, Other Changes in Fair Value [Member] Loans, Other Changes in Fair Value [Member] Schedule Of Mortgage Fees And Related Income [Table] Schedule Of Mortgage Fees And Related Income [Table] Schedule Of Mortgage Fees And Related Income Cash and due from banks and deposits with banks at the beginning of the period Cash and due from banks and deposits with banks at the end of the period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Notional amount of derivative contracts Schedule of Derivative Instruments [Table Text Block] Residential: Non-U.S. Foreign Mortgage-backed Securities [Member] Mortgage-backed Securities from countries other than the entity's country of domicile. Exchange-traded Exchange Traded [Member] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share MSR activity: Mortgage servicing rights activity Abstract Mortgage servicing rights activity Abstract. Contractual amount of lending-related commitments Other guarantees and commitments, Contractual amount Derivative guarantees Guarantor Obligations, Maximum Exposure, Undiscounted Purchases Payments to Acquire Held-to-maturity Securities Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] All other financing activities, net Proceeds from (Payments for) Other Financing Activities U.S. GSEs and government agencies Securities Transferred To Agency Resecuritization VIEs Amount of securities transferred to agency re-securitization VIEs during the period. Criticized Criticized [Member] Investment-grade Internal Investment Grade [Member] 90 or more days past due and government guaranteed Fair Value, Option, Loans Held as Assets, 90 Days or More Past Due Physical commodities Commodities Investment [Member] Options Commodity Option [Member] Due after one year through five years Debt Securities, Held-to-maturity, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair 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. Restricted Cash and Other Restricted Assets Restricted Assets Disclosure [Text Block] Fair value, beginning balance Fair value, ending balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value % of 30 plus days past due to total retained loans, Term loans originated in 2022/2021 Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated in Current Fiscal Year Percentage of Loans Thirty Plus Days Past Due to Total Retained Loans, Originated in Current Fiscal Year Recurring Fair Value, Recurring [Member] Spot, futures and forwards Foreign Exchange Spot, Future and Forward [Member] Foreign Exchange Spot, Future and Forward [Member] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] Net amounts Derivative Liabilities, Net Amount After Liquid Securities and/or Cash Collateral Held at Third-Party Custodians, Liabilities Subject to a Master Netting Agreement The balance of derivative payables subject to master netting agreements after balance sheet netting and net of liquid securities and/or cash collateral held at third-party custodians. Protection sold credit derivatives ratings/maturity profile - less than 1 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. Income statement impact Gain (Loss) on Fair Value Hedges Recognized in Earnings Collateral not nettable on the Consolidated balance sheets Derivative, Collateral, Obligation to Return Securities and/or Cash Held by Third-Party Custodians Amount of obligation to return securities and/or cash collateral held at third-party custodians under master netting arrangements that have not been offset against derivative assets. Net change in: Additional Cash Flow Elements, Investing Activities [Abstract] Well capitalized leverage-based capital ratios Well Capitalized Leverage Ratios [Abstract] Well Capitalized Leverage Ratios Cash flow hedges Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Measurement Basis [Axis] Measurement Basis [Axis] Charge-offs recognized upon permanent modification Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down Cross-currency swaps Currency Swap [Member] Revolving loans converted to term loans Financing Receivable, Excluding Accrued Interest, Revolving, Converted to Term Loan Key economic assumptions used to determine FV of MSRs Mortgage Servicing Rights Fair Value Key Economic Assumptions Used To Determine Text Block [Table Text Block] Key economic assumptions used to determine the fair value of the Firm's Mortgage Servicing Rights. Net cash provided by/(used in) investing activities Net Cash Provided by (Used in) Investing Activities Series EE Series EE Preferred Stock [Member] Series EE Preferred Stock [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Net change in: Increase (Decrease) in Operating Capital [Abstract] Interest rate curve Measurement Input, Interest Rate Curve [Member] Measurement Input, Interest Rate Curve Tier 1 leverage Banking Regulation, Tier One Leverage Capital Ratio, Well Capitalized, Minimum The carrying value and estimated fair value of wholesale lending-related commitments Carrying Value And Estimated Fair Value Of Wholesale Lending Related Commitments [Table Text Block] This element represents the carrying value and estimated fair value of wholesale lending- related commitments. Class of Stock [Domain] Class of Stock [Domain] Securities borrowed Securities Borrowed [Member] Securities Borrowed [Member] Lien Category [Domain] Lien Category [Domain] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Ownership [Domain] Ownership [Domain] 90 or more days past due and still accruing Financial Asset, 90 or More Days Past Due, and Still Accruing [Member] Retained loans that are 90 days or more past due and still accruing interest. Position [Domain] Position [Domain] Term loans originated in 2019/2018 Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Servicer advances, net of an allowance for uncollectible amounts 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. Payments for legal settlement Payments for Legal Settlements SEC U.S. Securities and Exchange Commission [Member] U.S. Securities and Exchange Commission Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Asset-backed securities Asset-backed securities Asset-backed Securities [Member] Accrued interest receivables reversed through interest income on AFS securities Debt Securities, Available-for-Sale, Accrued Interest Writeoff Washington WASHINGTON Series X Series X Preferred Stock [Member] Series X Preferred Stock. Gross unrealized losses Debt Securities, Available-for-Sale and Held-to-Maturity, Cumulative Unrecognized Loss Preferred Stock Preferred Stock [Text Block] Offsetting liabilities Offsetting Liabilities [Table Text Block] Other Adjustments to Additional Paid in Capital, Other Fair value Derivatives Qualifying as Guarantees [Abstract] Derivatives Qualifying as Guarantees [Abstract] Gross derivative payables Derivative Liability, Fair Value, Gross Liability Prime / Alt-A & option ARMs Prime [Member] Mortgage securitization entities Mortgages [Member] Debt-to-Value [Domain] Debt-to-Value [Domain] Unsettled resale and securities borrowed agreements Unsettled Reverse Repurchase and Securities Borrowing Agreements [Member] This represents the amount of commitments to enter into reverse repurchase and securities borrowing agreements. Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Criticized nonaccrual Criticized Nonaccrual [Member] Credit rating classification that is used to describe the credit risk of loans that connote criticized nonperforming, which is a subcategory of noninvestment grade criticized. Criticized grade ratings generally range from the equivalent of "CCC+" to "Caa1 and lower", with criticized nonperforming loans representing those for which the accrual of interest is suspended. Other card income Other Products and Services [Member] Other Products and Services [Member] Principal transactions revenue Principal Transactions Revenue, Net [Abstract] Amounts reclassified from AOCI to income Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Tier 1 capital Banking Regulation, Tier One Risk-Based Capital, Actual Oil commodity forward Measurement Input, Commodity Forward Price, Oil [Member] Measurement Input, Commodity Forward Price, Industrial Metal [Member] Depreciation and amortization Depreciation, Amortization and Accretion, Net Loss contingency, exemption of disqualification period Loss Contingency, Exemption Of Disqualification Period Loss Contingency, Exemption Of Disqualification Period 101% to 125% and refreshed FICO scores LTV 101 to 125 Percent [Member] Loans related to current estimated LTV ratio between 101% and 125%. Fair value inputs, assets and liabilities, quantitative information Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Debt securities, trading, measurement input Debt Securities, Trading, Measurement Input Equity Net equity derivatives Equity contracts Equity Contract [Member] 30–119 days past due Financial Asset, 30 to 119 Days Past Due [Member] Retained loans that are 30 to 119 days past due. Price Measurement Input, Price Per Unit [Member] Measurement Input, Price Per Unit [Member] Aggregate liquidation value Preferred Stock, Liquidation Preference, Value Credit Score, FICO [Domain] Credit Score, FICO [Domain] Amount required to settle contracts with termination triggers upon downgrade Assets Needed for Immediate Settlement, Aggregate Fair Value Cumulative amount of fair value hedging adjustments included in the carrying amount of hedged items: Effect of Fair Value Hedges on Results of Operations, Assets [Abstract] Effect of Fair Value Hedges on Results of Operations, Assets [Abstract] SLR, minimum requirement Banking Regulation, Supplementary Leverage Ratio, Capital Adequacy, Minimum Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Trading liabilities, Debt and equity instruments Trading Liabilities, Excluding Derivatives, Fair Value Disclosure Trading Liabilities, Excluding Derivatives, Fair Value Disclosure DVA for fair value option elected liabilities Debit Valuation Adjustment For Fair Value Option Financial Liabilities [Member] Debit Valuation Adjustment For Fair Value Option Financial Liabilities [Member] 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. Asset-backed securities, Collateralized loan obligations Asset-backed securities: Collateralized loan obligations Collateralized Loan Obligations [Member]