Variable Interest Entities - Nonconsolidated Municipal Bond VIEs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Variable Interest Entity [Line Items]
Total assets	$ 2,351,698	[1]	$ 2,572,274	[1]	$ 2,414,879
Nonconsolidated municipal bond vehicles | Municipal bond vehicles
Variable Interest Entity [Line Items]
Total assets	6,900		11,500
Liquidity facilities	3,800		6,300
Excess	$ 3,100		$ 5,200
Wt. avg. expected life of assets (years)	4 years		4 years 10 months 24 days
Nonconsolidated municipal bond vehicles | Municipal bond vehicles | Investment-grade AAA to AAA-
Variable Interest Entity [Line Items]
Total assets	$ 1,700		$ 2,700
Nonconsolidated municipal bond vehicles | Municipal bond vehicles | Investment-grade AAplus to AA-
Variable Interest Entity [Line Items]
Total assets	4,600		8,400
Nonconsolidated municipal bond vehicles | Municipal bond vehicles | Investment-grade Aplus to A-
Variable Interest Entity [Line Items]
Total assets	500		400
Nonconsolidated municipal bond vehicles | Municipal bond vehicles | Investment-grade BBBplus to BBB-
Variable Interest Entity [Line Items]
Total assets	0		0
Nonconsolidated municipal bond vehicles | Municipal bond vehicles | Noninvestment-grade BBplus and below
Variable Interest Entity [Line Items]
Total assets	100		0
Nonconsolidated entities | Municipal bond vehicles
Variable Interest Entity [Line Items]
Maximum exposure	$ 3,800		$ 6,300

[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.