Parent Company - Statements of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities
Net income/(loss)	$ 37,676	$ 48,334	$ 29,131
Other operating adjustments	2,339	(398)	3,115
Net cash provided by/(used in) operating activities	107,119	78,084	(79,910)
Investing activities
All other investing activities, net	(11,932)	(11,044)	(7,341)
Net cash (used in) investing activities	(137,819)	(129,344)	(261,912)
Financing activities
Net change in: Short-term borrowings	(8,984)
Proceeds from long-term borrowings	78,442	82,409	78,686
Payments of long-term borrowings	(45,556)	(54,932)	(105,055)
Proceeds from issuance of preferred stock	0	7,350	4,500
Redemption of preferred stock	(7,434)	(2,575)	(1,430)
Treasury stock repurchased	(3,162)	(18,408)	(6,517)
Dividends paid	(13,562)	(12,858)	(12,690)
All other financing activities, net	234	(1,477)	(927)
Net cash provided by/(used in) financing activities	(126,257)	275,993	596,645
Net increase/(decrease) in cash and due from banks and deposits with banks	(173,600)	213,225	263,978
Cash and due from banks and deposits with banks at the beginning of the period	740,834	527,609	263,631
Cash and due from banks and deposits with banks at the end of the period	567,234	740,834	527,609
Cash interest paid	23,143	5,142	13,077
Cash income taxes paid, net	4,355	18,737	8,140
JPMorgan Chase & Co.
Operating activities
Net income/(loss)	37,676	48,334	29,131
Less: Net income of subsidiaries and affiliates	44,699	51,252	33,631
Parent company net loss	(7,023)	(2,918)	(4,500)
Cash dividends from subsidiaries and affiliates	40,500	10,000	6,000
Other operating adjustments	(23,747)	(12,677)	15,357
Net cash provided by/(used in) operating activities	9,730	(5,595)	16,857
Investing activities
Net change in: Advances to and investments in subsidiaries and affiliates, net	0	(3,000)	(2,663)
All other investing activities, net	31	31	24
Net cash (used in) investing activities	31	(2,969)	(2,639)
Financing activities
Net change in: Borrowings from subsidiaries and affiliates	(4,491)	2,647	1,425
Net change in: Short-term borrowings	0	0	(20)
Proceeds from long-term borrowings	41,389	49,169	37,312
Payments of long-term borrowings	(18,294)	(15,543)	(34,194)
Proceeds from issuance of preferred stock	0	7,350	4,500
Redemption of preferred stock	(7,434)	(2,575)	(1,430)
Treasury stock repurchased	(3,162)	(18,408)	(6,517)
Dividends paid	(13,562)	(12,858)	(12,690)
All other financing activities, net	(1,205)	(1,238)	(1,080)
Net cash provided by/(used in) financing activities	(6,759)	8,544	(12,694)
Net increase/(decrease) in cash and due from banks and deposits with banks	3,002	(20)	1,524
Cash and due from banks and deposits with banks at the beginning of the period	6,845	6,865	5,341
Cash and due from banks and deposits with banks at the end of the period	9,847	6,845	6,865
Cash interest paid	7,462	4,065	5,445
Cash income taxes paid, net	$ 6,941	$ 15,259	$ 5,366