Business Segments & Corporate (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2024	Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Segment Reporting Information [Line Items]
Noninterest revenue		$ 84,973		$ 68,837		$ 61,985
Net interest income		92,583		89,267		66,710
Total net revenue		177,556		158,104		128,695
Provision for credit losses		10,678		9,320		6,389
Compensation expense		51,357		46,465		41,636
Total noninterest expense		91,797		87,172		76,140
Income/(loss) before income tax expense/(benefit)		75,081		61,612		46,166
Income tax expense/(benefit)		16,610		12,060		8,490
Net income/(loss)		58,471		49,552		37,676
Average equity		312,370		282,056		253,068
Total assets		$ 4,002,814	[1]	$ 3,875,393	[1]	$ 3,665,743
Return on equity		18.00%		17.00%		14.00%
Overhead ratio		52.00%		55.00%		59.00%
Contribution of Visa shares	$ 1,000	$ 1,000		$ 0		$ 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		16,649		15,118		14,886
Net interest income		54,858		55,030		39,928
Total net revenue		71,507		70,148		54,814
Provision for credit losses		9,974		6,899		3,813
Compensation expense		17,045		15,171		13,092
Noncompensation expense		20,991		19,648		18,116
Total noninterest expense		38,036		34,819		31,208
Income/(loss) before income tax expense/(benefit)		23,497		28,430		19,793
Income tax expense/(benefit)		5,894		7,198		4,877
Net income/(loss)		17,603		21,232		14,916
Average equity		54,500		54,349		50,000
Total assets		$ 650,268		$ 642,951		$ 514,085
Return on equity		32.00%		38.00%		29.00%
Overhead ratio		53.00%		50.00%		57.00%
Operating Segments | Commercial & Investment Bank
Segment Reporting Information [Line Items]
Noninterest revenue		$ 48,253		$ 43,809		$ 39,538
Net interest income		21,861		20,544		20,097
Total net revenue		70,114		64,353		59,635
Provision for credit losses		762		2,091		2,426
Compensation expense		18,191		17,105		16,214
Noncompensation expense		17,162		16,867		15,855
Total noninterest expense		35,353		33,972		32,069
Income/(loss) before income tax expense/(benefit)		33,999		28,290		25,140
Income tax expense/(benefit)		9,153		8,018		6,002
Net income/(loss)		24,846		20,272		19,138
Average equity		132,000		137,507		128,000
Total assets		$ 1,773,194		$ 1,638,493		$ 1,591,402
Return on equity		18.00%		14.00%		14.00%
Overhead ratio		50.00%		53.00%		54.00%
Operating Segments | Asset & Wealth Management
Segment Reporting Information [Line Items]
Noninterest revenue		$ 15,023		$ 13,560		$ 12,507
Net interest income		6,555		6,267		5,241
Total net revenue		21,578		19,827		17,748
Provision for credit losses		(68)		159		128
Compensation expense		7,984		7,115		6,336
Noncompensation expense		6,430		5,665		5,493
Total noninterest expense		14,414		12,780		11,829
Income/(loss) before income tax expense/(benefit)		7,232		6,888		5,791
Income tax expense/(benefit)		1,811		1,661		1,426
Net income/(loss)		5,421		5,227		4,365
Average equity		15,500		16,671		17,000
Total assets		$ 255,385		$ 245,512		$ 232,037
Return on equity		34.00%		31.00%		25.00%
Overhead ratio		67.00%		64.00%		67.00%
Corporate
Segment Reporting Information [Line Items]
Noninterest revenue		$ 7,608		$ 132		$ (1,798)
Net interest income		9,786		7,906		1,878
Total net revenue		17,394		8,038		80
Provision for credit losses		10		171		22
Total noninterest expense		3,994		5,601		1,034
Income/(loss) before income tax expense/(benefit)		13,390		2,266		(976)
Income tax expense/(benefit)		2,789		(555)		(233)
Net income/(loss)		10,601		2,821		(743)
Average equity		110,370		73,529		58,068
Total assets		1,323,967		1,348,437		1,328,219
Reconciling Items
Segment Reporting Information [Line Items]
Noninterest revenue		(2,560)		(3,782)		(3,148)
Net interest income		(477)		(480)		(434)
Total net revenue		(3,037)		(4,262)		(3,582)
Provision for credit losses		0		0		0
Total noninterest expense		0		0		0
Income/(loss) before income tax expense/(benefit)		(3,037)		(4,262)		(3,582)
Income tax expense/(benefit)		(3,037)		(4,262)		(3,582)
Net income/(loss)		0		0		0
Average equity		$ 0		$ 0		$ 0

[1] The following table presents information on assets and liabilities related to VIEs that are consolidated by the Firm at December 31, 2024 and 2023. 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 JPMorganChase. 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)20242023AssetsTrading assets$3,885 $2,170 Loans36,510 37,611 All other assets681 591 Total assets$41,076 $40,372 LiabilitiesBeneficial interests issued by consolidated VIEs$27,323 $23,020 All other liabilities454 263 Total liabilities$27,777 $23,283