Business Segments (Details) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2023 USD ($)		Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) segment		Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	[1]
Segment Reporting Information [Line Items]
Number of reportable segments | segment				4
Noninterest revenue	$ 17,148		$ 15,198	$ 54,314		$ 47,630
Net interest income	22,726		17,518	65,216		46,518
Total net revenue	39,874		32,716	119,530		94,148
Provision for credit losses	1,384		1,537	6,558		4,101
Noninterest expense	21,757		19,178	62,686		57,118
Income/(loss) before income tax expense/(benefit)	16,733		12,001	50,286		32,929
Income tax expense/(benefit)	3,582		2,264	10,041		6,261
Net income/(loss)	13,151		9,737	40,245		26,668
Average equity	284,798		252,944	278,010		251,147
Total assets	$ 3,898,333	[1]	$ 3,773,884	$ 3,898,333	[1]	$ 3,773,884	$ 3,665,743
ROE	18.00%		15.00%	19.00%		14.00%
Overhead ratio	55.00%		59.00%	52.00%		61.00%
Operating Segments | Consumer & Community Banking
Segment Reporting Information [Line Items]
Noninterest revenue	$ 3,982		$ 3,712	$ 11,148		$ 11,417
Net interest income	14,380		10,569	40,903		27,604
Total net revenue	18,362		14,281	52,051		39,021
Provision for credit losses	1,446		529	4,710		1,968
Noninterest expense	9,105		7,983	25,483		23,296
Income/(loss) before income tax expense/(benefit)	7,811		5,769	21,858		13,757
Income tax expense/(benefit)	1,916		1,425	5,414		3,397
Net income/(loss)	5,895		4,344	16,444		10,360
Average equity	55,500		50,000	53,962		50,000
Total assets	$ 626,196		$ 500,752	$ 626,196		$ 500,752
ROE	41.00%		34.00%	40.00%		27.00%
Overhead ratio	50.00%		56.00%	49.00%		60.00%
Operating Segments | Corporate & Investment Bank
Segment Reporting Information [Line Items]
Noninterest revenue	$ 9,870		$ 9,281	$ 32,195		$ 28,090
Net interest income	1,860		2,644	5,654		9,414
Total net revenue	11,730		11,925	37,849		37,504
Provision for credit losses	(185)		513	(89)		1,017
Noninterest expense	7,443		6,682	21,820		20,855
Income/(loss) before income tax expense/(benefit)	4,472		4,730	16,118		15,632
Income tax expense/(benefit)	1,380		1,208	4,513		4,021
Net income/(loss)	3,092		3,522	11,605		11,611
Average equity	108,000		103,000	108,000		103,000
Total assets	$ 1,446,231		$ 1,384,618	$ 1,446,231		$ 1,384,618
ROE	11.00%		13.00%	14.00%		14.00%
Overhead ratio	63.00%		56.00%	58.00%		56.00%
Operating Segments | Commercial Banking
Segment Reporting Information [Line Items]
Noninterest revenue	$ 972		$ 836	$ 2,588		$ 2,607
Net interest income	3,059		2,212	8,942		5,522
Total net revenue	4,031		3,048	11,530		8,129
Provision for credit losses	90		618	1,604		984
Noninterest expense	1,375		1,180	3,983		3,465
Income/(loss) before income tax expense/(benefit)	2,566		1,250	5,943		3,680
Income tax expense/(benefit)	631		304	1,453		890
Net income/(loss)	1,935		946	4,490		2,790
Average equity	30,000		25,000	29,341		25,000
Total assets	$ 300,367		$ 247,485	$ 300,367		$ 247,485
ROE	25.00%		14.00%	20.00%		14.00%
Overhead ratio	34.00%		39.00%	35.00%		43.00%
Operating Segments | Asset & Wealth Management
Segment Reporting Information [Line Items]
Noninterest revenue	$ 3,431		$ 3,126	$ 10,122		$ 9,449
Net interest income	1,574		1,413	4,610		3,711
Total net revenue	5,005		4,539	14,732		13,160
Provision for credit losses	(13)		(102)	160		96
Noninterest expense	3,138		3,028	9,392		8,807
Income/(loss) before income tax expense/(benefit)	1,880		1,613	5,180		4,257
Income tax expense/(benefit)	463		394	1,170		1,026
Net income/(loss)	1,417		1,219	4,010		3,231
Average equity	17,000		17,000	16,560		17,000
Total assets	$ 249,866		$ 232,303	$ 249,866		$ 232,303
ROE	32.00%		28.00%	32.00%		25.00%
Overhead ratio	63.00%		67.00%	64.00%		67.00%
Corporate
Segment Reporting Information [Line Items]
Noninterest revenue	$ (425)		$ (1,094)	$ 800		$ (1,683)
Net interest income	1,983		792	5,461		580
Total net revenue	1,558		(302)	6,261		(1,103)
Provision for credit losses	46		(21)	173		36
Noninterest expense	696		305	2,008		695
Income/(loss) before income tax expense/(benefit)	816		(586)	4,080		(1,834)
Income tax expense/(benefit)	4		(292)	384		(510)
Net income/(loss)	812		(294)	3,696		(1,324)
Average equity	74,298		57,944	70,147		56,147
Total assets	1,275,673		1,408,726	1,275,673		1,408,726
Reconciling Items
Segment Reporting Information [Line Items]
Noninterest revenue	(682)		(663)	(2,539)		(2,250)
Net interest income	(130)		(112)	(354)		(313)
Total net revenue	(812)		(775)	(2,893)		(2,563)
Provision for credit losses	0		0	0		0
Noninterest expense	0		0	0		0
Income/(loss) before income tax expense/(benefit)	(812)		(775)	(2,893)		(2,563)
Income tax expense/(benefit)	(812)		(775)	(2,893)		(2,563)
Net income/(loss)	0		0	0		0
Average equity	$ 0		$ 0	$ 0		$ 0

[1] The following table presents information on assets and liabilities related to VIEs that are consolidated by the Firm at September 30, 2023 and December 31, 2022. 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 14 for a further discussion. (in millions)September 30, 2023December 31, 2022AssetsTrading assets$1,780 $2,151 Loans38,176 34,411 All other assets593 550 Total assets$40,549 $37,112 LiabilitiesBeneficial interests issued by consolidated VIEs$24,896 $12,610 All other liabilities244 279 Total liabilities$25,140 $12,889