1.0.0.3 false Consolidated balance sheets (USD $) In Millions false 1 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 false 2 $ false false Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 3 1 us-gaap_AssetsAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 4 2 us-gaap_CashAndDueFromBanks us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 true true 26206000000 26206 false false 2 true true 26895000000 26895 false false No definition available. No authoritative reference available. false 5 2 us-gaap_InterestBearingDepositsInBanks us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 63230000000 63230 false false 2 false true 138139000000 138139 false false No definition available. No authoritative reference available. false 6 2 us-gaap_FederalFundsSoldAndSecuritiesPurchasedUnderAgreementsToResell us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 195404000000 195404 false false 2 false true 203115000000 203115 false false No definition available. No authoritative reference available. false 7 2 us-gaap_SecuritiesBorrowed us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 119630000000 119630 false false 2 false true 124000000000 124000 false false No definition available. No authoritative reference available. false 8 2 jpm_TradingAssets jpm false debit instant monetary Total debt and equity financial instruments classified as (1) trading securities and (2) derivative assets. (1) The total of... false false false false false false false false false 1 false true 411128000000 411128 false false 2 false true 509983000000 509983 false false 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. No authoritative reference available. false 9 2 jpm_Securities jpm false debit instant monetary Total debt and equity financial instruments classified as (1) available-for-sale securities and (2) held-to-maturity... false false false false false false false false false 1 false true 360390000000 360390 false false 2 false true 205943000000 205943 false false Total debt and equity financial instruments classified as (1) available-for-sale securities and (2) held-to-maturity securities. (1) For an unclassified balance sheet, this item represents investments in debt and equity securities which are categorized neither as held-to-maturity nor trading. Such securities are reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale Security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain or loss of an Available-for-sale Security that is designated as being hedged in a fair value hedge shall be recognized in earnings during the period of the hedge, as should other than temporary declines in fair value below costs basis. (2) For an unclassified balance sheet, this item represents investments in debt securities which are categorized as held-to-maturity; such investments are measured at amortized cost (carrying value). The held-to-maturity category is for those securities that the Entity has the positive intent and ability to hold until maturity. No authoritative reference available. false 10 2 us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 633458000000 633458 false false 2 false true 744898000000 744898 false false No definition available. No authoritative reference available. false 11 2 us-gaap_LoansAndLeasesReceivableAllowance us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -31602000000 -31602 false false 2 false true -23164000000 -23164 false false No definition available. No authoritative reference available. true 12 2 us-gaap_LoansAndLeasesReceivableNetReportedAmount us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 601856000000 601856 false false 2 false true 721734000000 721734 false false No definition available. No authoritative reference available. false 13 2 jpm_AccruedInterestAndAccountsReceivable jpm false debit instant monetary Accrued interest and accounts receivable comprised of (1) accounts receivable and (2) accrued investment income. (1) Amount... false false false false false false false false false 1 false true 67427000000 67427 false false 2 false true 60987000000 60987 false false 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. No authoritative reference available. false 14 2 us-gaap_PropertyPlantAndEquipmentNet us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 11118000000 11118 false false 2 false true 10045000000 10045 false false No definition available. No authoritative reference available. false 15 2 us-gaap_Goodwill us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 48357000000 48357 false false 2 false true 48027000000 48027 false false No definition available. No authoritative reference available. false 16 2 jpm_MortgageServicingRights jpm false debit instant monetary Fair value as of the balance sheet date of an asset representing net future revenues from contractually specified servicing... false false false false false false false false false 1 false true 15531000000 15531 false false 2 false true 9403000000 9403 false false Fair value as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. The fair value of an asset is the amount at which that asset could be bought or sold (or settled) in a current transaction between willing parties, other than in a forced or liquidation sale. Rights may be obtained via (1) acquisition or assumption of a servicing obligation that does not relate to financial assets of the servicer or its consolidated affiliates; or (2) by originating loans and then (a) transferring the loans to a qualifying special purpose entity in a transaction that meets the necessary transfer and classification requirements, or (b) transferring the loans in a transaction that meets the requirements for sale accounting. No authoritative reference available. false 17 2 jpm_IntangibleAssetsNetExcludingGoodwillAndMortgageServicingRights jpm false debit instant monetary Sum of the carring amounts of all intangible assets, excluding goodwill, and mortgage servicing rights, as of the balance... false false false false false false false false false 1 false true 4621000000 4621 false false 2 false true 5581000000 5581 false false Sum of the carring amounts of all intangible assets, excluding goodwill, and mortgage servicing rights, as of the balance sheet date, net of accumulated amortization and impairment charges. No authoritative reference available. false 18 2 us-gaap_OtherAssets us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 107091000000 107091 false false 2 false true 111200000000 111200 false false No definition available. No authoritative reference available. true 19 2 us-gaap_Assets us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true 2031989000000 2031989 false false 2 false true 2175052000000 2175052 false false No definition available. No authoritative reference available. true 20 1 us-gaap_LiabilitiesAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 21 2 us-gaap_Deposits us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 938367000000 938367 false false 2 false true 1009277000000 1009277 false false No definition available. No authoritative reference available. false 22 2 jpm_FederalFundsPurchasedSecuritiesSoldUnderAgreementsToRepurchaseAndSecuritiesLoaned jpm false credit instant monetary Total federal funds purchased and securities loaned or sold under repurchase agreements classified as (1) Federal funds... false false false false false false false false false 1 false true 261413000000 261413 false false 2 false true 192546000000 192546 false false Total federal funds purchased and securities loaned or sold under repurchase agreements classified as (1) Federal funds purchased and securities sold under agreements to repurchase and (2) Securities loaned. (1) The amount shown on the books that a bank with insufficient reserves borrows, at the federal funds rate, from another bank to meet its reserve requirements and the amount of securities that an institution sells and agrees to repurchase at a specified date for a specified price, net of any reductions or offsets. (2) The carrying value as of the balance sheet date of securities loaned to other broker dealers, typically used by such parties to cover short sales, secured by cash or other securities furnished by such parties until the borrowing is closed. No authoritative reference available. false 23 2 us-gaap_CommercialPaper us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 41794000000 41794 false false 2 false true 37845000000 37845 false false No definition available. No authoritative reference available. false 24 2 jpm_FederalHomeLoanBankAdvancesAndOtherShortTermBorrowings jpm false credit instant monetary Total other borrowed funds classified as (1) Other short-term borrowings, short-term and (2) Federal home loan bank,... false false false false false false false false false 1 false true 55740000000 55740 false false 2 false true 132400000000 132400 false false Total other borrowed funds classified as (1) Other short-term borrowings, short-term and (2) Federal home loan bank, advances. (1) Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer. (2) Federal home loan bank borrowings. No authoritative reference available. false 25 2 jpm_TradingDerivativeLiabilities jpm false credit instant monetary Classified as (1) trading liabilities and (2) derivative liabilities. (1) The carrying amount of liabilities as of the... false false false false false false false false false 1 false true 125071000000 125071 false false 2 false true 166878000000 166878 false false Classified as (1) trading liabilities and (2) derivative liabilities. (1) The carrying amount of liabilities as of the balance sheet date that pertain to principal and customer trading transactions, or which may be incurred with the objective of generating a profit from short-term fluctuations in price as part of an entity's market-making, hedging and proprietary trading. Examples include short positions in securities, derivatives and commodities, obligations under repurchase agreements, and securities borrowed arrangements. (2) Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements. No authoritative reference available. false 26 2 jpm_AccountsPayableAndOtherLiabilities jpm false credit instant monetary Carrying amount as of the balance sheet date of liabilities not otherwise specified in the taxonomy. Also serves as the sum... false false false false false false false false false 1 false true 162696000000 162696 false false 2 false true 187978000000 187978 false false Carrying amount as of the balance sheet date of liabilities not otherwise specified in the taxonomy. Also serves as the sum of liabilities not individually reported in the financial statements, or not separately disclosed in notes. No authoritative reference available. false 27 2 us-gaap_BeneficialInterest us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 15225000000 15225 false false 2 false true 10561000000 10561 false false No definition available. No authoritative reference available. false 28 2 us-gaap_LongTermDebt us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 266318000000 266318 false false 2 false true 270683000000 270683 false false No definition available. No authoritative reference available. true 29 2 us-gaap_Liabilities us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 1866624000000 1866624 false false 2 false true 2008168000000 2008168 false false No definition available. No authoritative reference available. true 31 1 us-gaap_StockholdersEquityAbstract us-gaap true na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false No definition available. false 32 2 jpm_PreferredStocksValue jpm false credit instant monetary Dollar value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer)... false false false false false false false false false 1 false true 8152000000 8152 false false 2 false true 31939000000 31939 false false Dollar value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) whether issued at par value, no par or stated value. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. No authoritative reference available. false 33 2 us-gaap_CommonStockValue us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 4105000000 4105 false false 2 false true 3942000000 3942 false false No definition available. No authoritative reference available. false 34 2 us-gaap_AdditionalPaidInCapital us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 97982000000 97982 false false 2 false true 92143000000 92143 false false No definition available. No authoritative reference available. false 35 2 us-gaap_RetainedEarningsAccumulatedDeficit us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 62481000000 62481 false false 2 false true 54013000000 54013 false false No definition available. No authoritative reference available. false 36 2 us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true -91000000 -91 false false 2 false true -5687000000 -5687 false false No definition available. No authoritative reference available. false 37 2 jpm_CommonStockHeldInRestrictedStockUnitTrust jpm false credit instant monetary Grant date fair value of common stock shares held in an irrevocable grantor trust (the "RSU Trust") to be used for settlement... false false false false false false false false false 1 false true -68000000 -68 false false 2 false true -217000000 -217 false false Grant date fair value of common stock shares held in an irrevocable grantor trust (the "RSU Trust") to be used for settlement of stock awards granted to selected employees and certain key executives under a restricted stock unit plan. No authoritative reference available. false 38 2 us-gaap_TreasuryStockValue us-gaap true debit instant monetary No definition available. false false false false false false false false false 1 false true -7196000000 -7196 false false 2 false true -9249000000 -9249 false false No definition available. No authoritative reference available. true 39 2 us-gaap_StockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 false true 165365000000 165365 false false 2 false true 166884000000 166884 false false No definition available. No authoritative reference available. true 40 1 us-gaap_LiabilitiesAndStockholdersEquity us-gaap true credit instant monetary No definition available. false false false false false false false false false 1 true true 2031989000000 2031989 false false 2 true true 2175052000000 2175052 false false No definition available. No authoritative reference available. true false 2 37 false Millions UnKnown UnKnown false true