Variable Interest Entities - Resecuritizations, Multi-seller Conduits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Variable Interest Entity [Line Items]
Securities transferred to agency resecuritization VIEs	$ 21,900		$ 22,700		$ 25,300
Securities transferred to private-label re-securitization VIEs	777		1,100		55
Total assets (including notional amount of interest-only securities)	2,351,698	[1]	2,572,274	[1]	2,414,879
Off-balance sheet lending-related financial commitments, contractual amount	$ 940,395		950,997		$ 929,678
Maximum
Variable Interest Entity [Line Items]
Program-wide credit enhancement required amount	10.00%
Nonconsolidated rirm-sponsored private-label re-securitizations
Variable Interest Entity [Line Items]
Total assets (including notional amount of interest-only securities)	$ 2,200		2,900
Re-securitization | Re-securitizations
Variable Interest Entity [Line Items]
Senior and subordinated interest in nonconsolidated agency re-securitization entities	4,600		2,400
Firm-administered multi-seller conduits
Variable Interest Entity [Line Items]
Commercial paper issued by consolidated Variable Interest Entities eliminated in Consolidation	15,700		5,700
Firm-administered multi-seller conduits | Commercial and other
Variable Interest Entity [Line Items]
Off-balance sheet lending-related financial commitments, contractual amount	$ 5,600		$ 9,900

[1] The following table presents information on assets and liabilities related to VIEs that are consolidated by the Firm at December 31, 2015 and 2014. The difference between total VIE assets and liabilities represents the Firm’s interests in those entities, which were eliminated in consolidation.December 31, (in millions)2015 2014Assets Trading assets$3,736 $9,090Loans75,104 68,880All other assets2,765 1,815Total assets$81,605 $79,785Liabilities Beneficial interests issued by consolidated variable interest entities$41,879 $52,320All other liabilities809 949Total liabilities$42,688 $53,269The assets of the consolidated VIEs are used to settle the liabilities of those entities. The holders of the beneficial interests do not have recourse to the general credit of JPMorgan Chase. At both December 31, 2015 and 2014, the Firm provided limited program-wide credit enhancement of $2.0 billion, related to its Firm-administered multi-seller conduits, which are eliminated in consolidation. For further discussion, see Note 16.