Business Segments (Details) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2024 USD ($) segment		Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($)		Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	[1]
Segment Reporting Information [Line Items]
Number of reportable segments | segment	3
Noninterest revenue	$ 19,249		$ 17,148	$ 65,555		$ 54,314
Net interest income	23,405		22,726	69,233		65,216
Total net revenue	42,654		39,874	134,788		119,530
Provision for credit losses	3,111		1,384	8,047		6,558
Noninterest expense	22,565		21,757	69,035		62,686
Income/(loss) before income tax expense/(benefit)	16,978		16,733	57,706		50,286
Income tax expense/(benefit)	4,080		3,582	13,240		10,041
Net income/(loss)	12,898		13,151	44,466		40,245
Average equity	321,894		284,798	310,353		278,010
Total assets	$ 4,210,048	[1]	$ 3,898,333	$ 4,210,048	[1]	$ 3,898,333	$ 3,875,393
ROE	16.00%		18.00%	19.00%		19.00%
Overhead ratio	53.00%		55.00%	51.00%		52.00%
Contribution of Visa shares	$ 0		$ 0	$ 1,000		$ 0
VISA | Class C Common Shares
Segment Reporting Information [Line Items]
Net gain related to Visa shares				7,900
Operating Segments | Consumer & Community Banking
Segment Reporting Information [Line Items]
Noninterest revenue	4,214		3,982	12,155		11,148
Net interest income	13,577		14,380	40,990		40,903
Total net revenue	17,791		18,362	53,145		52,051
Provision for credit losses	2,795		1,446	7,351		4,710
Noninterest expense	9,586		9,105	28,308		25,483
Income/(loss) before income tax expense/(benefit)	5,410		7,811	17,486		21,858
Income tax expense/(benefit)	1,364		1,916	4,399		5,414
Net income/(loss)	4,046		5,895	13,087		16,444
Average equity	54,500		55,500	54,500		53,962
Total assets	$ 633,038		$ 626,196	$ 633,038		$ 626,196
ROE	29.00%		41.00%	31.00%		40.00%
Overhead ratio	54.00%		50.00%	53.00%		49.00%
Operating Segments | Commercial & Investment Bank
Segment Reporting Information [Line Items]
Noninterest revenue	$ 11,622		$ 10,842	$ 36,527		$ 34,783
Net interest income	5,393		4,919	15,989		14,596
Total net revenue	17,015		15,761	52,516		49,379
Provision for credit losses	316		(95)	701		1,515
Noninterest expense	8,751		8,818	26,641		25,803
Income/(loss) before income tax expense/(benefit)	7,948		7,038	25,174		22,061
Income tax expense/(benefit)	2,257		2,011	6,964		5,966
Net income/(loss)	5,691		5,027	18,210		16,095
Average equity	132,000		138,000	132,000		137,341
Total assets	$ 2,047,022		$ 1,746,598	$ 2,047,022		$ 1,746,598
ROE	17.00%		14.00%	18.00%		15.00%
Overhead ratio	51.00%		56.00%	51.00%		52.00%
Operating Segments | Asset & Wealth Management
Segment Reporting Information [Line Items]
Noninterest revenue	$ 3,799		$ 3,431	$ 10,946		$ 10,122
Net interest income	1,640		1,574	4,854		4,610
Total net revenue	5,439		5,005	15,800		14,732
Provision for credit losses	4		(13)	(33)		160
Noninterest expense	3,639		3,138	10,642		9,392
Income/(loss) before income tax expense/(benefit)	1,796		1,880	5,191		5,180
Income tax expense/(benefit)	445		463	1,287		1,170
Net income/(loss)	1,351		1,417	3,904		4,010
Average equity	15,500		17,000	15,500		16,560
Total assets	$ 253,750		$ 249,866	$ 253,750		$ 249,866
ROE	34.00%		32.00%	33.00%		32.00%
Overhead ratio	67.00%		63.00%	67.00%		64.00%
Corporate
Segment Reporting Information [Line Items]
Noninterest revenue	$ 155		$ (425)	$ 7,638		$ 800
Net interest income	2,915		1,983	7,756		5,461
Total net revenue	3,070		1,558	15,394		6,261
Provision for credit losses	(4)		46	28		173
Noninterest expense	589		696	3,444		2,008
Income/(loss) before income tax expense/(benefit)	2,485		816	11,922		4,080
Income tax expense/(benefit)	675		4	2,657		384
Net income/(loss)	1,810		812	9,265		3,696
Average equity	119,894		74,298	108,353		70,147
Total assets	1,276,238		1,275,673	1,276,238		1,275,673
Reconciling Items
Segment Reporting Information [Line Items]
Noninterest revenue	(541)		(682)	(1,711)		(2,539)
Net interest income	(120)		(130)	(356)		(354)
Total net revenue	(661)		(812)	(2,067)		(2,893)
Provision for credit losses	0		0	0		0
Noninterest expense	0		0	0		0
Income/(loss) before income tax expense/(benefit)	(661)		(812)	(2,067)		(2,893)
Income tax expense/(benefit)	(661)		(812)	(2,067)		(2,893)
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, 2024 and December 31, 2023. 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)September 30, 2024December 31, 2023AssetsTrading assets$3,443 $2,170 Loans35,028 37,611 All other assets647 591 Total assets$39,118 $40,372 LiabilitiesBeneficial interests issued by consolidated VIEs$25,694 $23,020 All other liabilities421 263 Total liabilities$26,115 $23,283