International Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Entity-Wide Information by Geographic Areas
Revenue	$ 119,543		$ 115,399		$ 108,783
Expense	84,136		70,854		68,019
Income before income tax expense	35,407		44,545		40,764
Net income	29,131		36,431		32,474
Total assets	3,386,071	[1]	2,687,379	[1]	2,622,532
Total international
Entity-Wide Information by Geographic Areas
Revenue	28,595		25,546		25,815
Expense	18,135		16,481		16,217
Income before income tax expense	10,460		9,065		9,598
Net income	7,335		6,234		6,794
Total assets	845,220		622,212		640,353
Europe/Middle East/Africa
Entity-Wide Information by Geographic Areas
Revenue	16,566		15,887		16,459
Expense	10,987		9,860		10,032
Income before income tax expense	5,579		6,027		6,427
Net income	3,868		4,158		4,569
Total assets	530,687		391,369		424,935
U.K.
Entity-Wide Information by Geographic Areas
Total assets	353,000		309,000		299,000
Asia-Pacific
Entity-Wide Information by Geographic Areas
Revenue	9,289		7,254		6,991
Expense	5,558		5,060		4,884
Income before income tax expense	3,731		2,194		2,107
Net income	2,630		1,467		1,481
Total assets	252,553		183,023		171,547
Latin America/Caribbean
Entity-Wide Information by Geographic Areas
Revenue	2,740		2,405		2,365
Expense	1,590		1,561		1,301
Income before income tax expense	1,150		844		1,064
Net income	837		609		744
Total assets	61,980		47,820		43,871
North America
Entity-Wide Information by Geographic Areas
Revenue	90,948		89,853		82,968
Expense	66,001		54,373		51,802
Income before income tax expense	24,947		35,480		31,166
Net income	21,796		30,197		25,680
Total assets	$ 2,540,851		$ 2,065,167		$ 1,982,179

[1] The following table presents information on assets and liabilities related to VIEs that are consolidated by the Firm at December 31, 2020 and 2019. The 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. 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 14 for a further discussion. December 31, (in millions)20202019AssetsTrading assets$1,934 $2,633 Loans37,619 42,931 All other assets681 881 Total assets$40,234 $46,445 LiabilitiesBeneficial interests issued by consolidated VIEs$17,578 $17,841 All other liabilities233 447 Total liabilities$17,811 $18,288