1.0.0.3 false Consolidated statements of income (Parenthetical) (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 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 3 1 us-gaap_RevenuesAbstract 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 No definition available. false 4 2 jpm_CreditLosses jpm false debit duration monetary Impairment losses included in securities gains and other comprehensive income. false false false false false false false false false 1 true true 578000000 578 false false Impairment losses included in securities gains and other comprehensive income. No authoritative reference available. false 5 2 jpm_TotalOtherThanTemporaryImpairmentLosses jpm false debit duration monetary Total impairment losses included in securities gains. false false false false false false false false false 1 false true 946000000 946 false false Total impairment losses included in securities gains. No authoritative reference available. false 6 2 jpm_NetImpairmentLosses jpm false debit duration monetary Impairment losses included in other comprehensive income. false false false false false false false false false 1 true true 368000000 368 false false Impairment losses included in other comprehensive income. No authoritative reference available. false false 1 4 false Millions UnKnown UnKnown false true