Name:	jpm_DerivativeAssetsNetExposureAfterLiquidSecuritiesAndorCashCollateralHeldAtThirdPartyCustodiansAssetsSubjectToMasterNettingArrangement
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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.

No definition available.

Name:	jpm_DerivativeCollateralObligationToReturnSecuritiesAndorCashHeldByThirdPartyCustodians
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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.

No definition available.

Name:	jpm_DerivativeCollateralRightToReclaimSecuritiesAndorCashHeldAtThirdPartyCustodians
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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.

No definition available.

Name:	jpm_DerivativeLiabilitiesNetAmountAfterLiquidSecuritiesAndorCashCollateralHeldAtThirdPartyCustodiansLiabilitiesSubjectToMasterNettingAgreement
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Derivative Payable Collateral [Abstract]

No definition available.

Name:	jpm_DerivativePayableCollateralAbstract
Namespace Prefix:	jpm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Derivative Receivable Collateral [Abstract]

No definition available.

Name:	jpm_DerivativeReceivableCollateralAbstract
Namespace Prefix:	jpm_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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.

No definition available.

Name:	jpm_DerivativesAssetsSubjectToMasterNettingArrangement
Namespace Prefix:	jpm_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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.

No definition available.