Variable Interest Entities - Consolidated VIE Assets and Liabilities (Details) - USD ($) $ in Millions		Jun. 30, 2021		Dec. 31, 2020		Jun. 30, 2020
Information on assets and liabilities related to VIEs that are consolidated by the Firm [Abstract]
Trading assets		$ 520,588		$ 503,126
Loans		963,665		960,506		$ 965,448
Other	[1]	209,254		151,539
Total assets		3,684,256	[2]	3,384,757	[2]	$ 3,212,643
Beneficial interests in VIE assets		14,403		17,578
Total liabilities	[2]	3,397,870		3,105,403
VIEs consolidated by the Firm
Information on assets and liabilities related to VIEs that are consolidated by the Firm [Abstract]
Trading assets		1,995		1,934
Loans		35,284		37,619
Other		609		681
Total assets		37,888		40,234
Beneficial interests in VIE assets		14,403		17,578
Other		233		233
Total liabilities		14,636		17,811
Beneficial interests in VIE assets, long term		2,700		5,200
VIEs consolidated by the Firm | Firm-sponsored credit card trusts
Information on assets and liabilities related to VIEs that are consolidated by the Firm [Abstract]
Trading assets		0		0
Loans		11,094		11,962
Other		100		148
Total assets		11,194		12,110
Beneficial interests in VIE assets		2,395		4,943
Other		1		3
Total liabilities		2,396		4,946
VIEs consolidated by the Firm | Firm-administered multi-seller conduits
Information on assets and liabilities related to VIEs that are consolidated by the Firm [Abstract]
Trading assets		4		2
Loans		20,005		23,787
Other		181		188
Total assets		20,190		23,977
Beneficial interests in VIE assets		9,794		10,523
Other		41		33
Total liabilities		9,835		10,556
VIEs consolidated by the Firm | Municipal bond vehicles
Information on assets and liabilities related to VIEs that are consolidated by the Firm [Abstract]
Trading assets		1,989		1,930
Loans		0		0
Other		2		2
Total assets		1,991		1,932
Beneficial interests in VIE assets		1,957		1,902
Other		0		0
Total liabilities		1,957		1,902
VIEs consolidated by the Firm | Mortgage securitization entities
Information on assets and liabilities related to VIEs that are consolidated by the Firm [Abstract]
Trading assets		0		0
Loans		1,219		1,694
Other		55		94
Total assets		1,274		1,788
Beneficial interests in VIE assets		199		210
Other		96		108
Total liabilities		295		318
VIEs consolidated by the Firm | Other
Information on assets and liabilities related to VIEs that are consolidated by the Firm [Abstract]
Trading assets		2		2
Loans		2,966		176
Other		271		249
Total assets		3,239		427
Beneficial interests in VIE assets		58		0
Other		95		89
Total liabilities		$ 153		$ 89

[1] Prior-period amounts have been revised to conform with the current presentation. Refer to Note 1 for further information.

[2] The following table presents information on assets and liabilities related to VIEs that are consolidated by the Firm at June 30, 2021, and December 31, 2020. The assets of the consolidated VIEs are used to settle the liabilities of those entities. The holders of the beneficial interests generally do not have recourse to the general credit of JPMorgan Chase. The assets and liabilities in the table below include third-party assets and liabilities of consolidated VIEs and exclude intercompany balances that eliminate in consolidation. Refer to Note 13 for a further discussion. (in millions)June 30, 2021December 31, 2020AssetsTrading assets$1,995 $1,934 Loans35,284 37,619 All other assets609 681 Total assets$37,888 $40,234 LiabilitiesBeneficial interests issued by consolidated VIEs$14,403 $17,578 All other liabilities233 233 Total liabilities$14,636 $17,811