Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities
Net income	$ 37,676	$ 48,334	$ 29,131
Adjustments to reconcile net income to net cash provided by/(used in) operating activities:
Provision for credit losses	6,389	(9,256)	17,480
Depreciation and amortization	7,051	7,932	8,614
Deferred tax (benefit)/expense	(2,738)	3,748	(3,573)
Other	5,174	3,274	1,649
Originations and purchases of loans held-for-sale	(149,167)	(347,864)	(166,504)
Proceeds from sales, securitizations and paydowns of loans held-for-sale	167,709	336,413	175,490
Net change in:
Trading assets	(31,449)	85,710	(148,749)
Securities borrowed	20,203	(45,635)	(20,734)
Accrued interest and accounts receivable	(22,970)	(12,401)	(18,012)
Other assets	(2,882)	(11,745)	(42,430)
Trading liabilities	11,170	(23,190)	77,198
Accounts payable and other liabilities	58,614	43,162	7,415
Other operating adjustments	2,339	(398)	3,115
Net cash provided by/(used in) operating activities	107,119	78,084	(79,910)
Net change in:
Federal funds sold and securities purchased under resale agreements	(54,278)	34,473	(47,115)
Held-to-maturity securities:
Proceeds from paydowns and maturities	48,626	50,897	21,360
Purchases	(33,676)	(111,756)	(12,400)
Available-for-sale securities:
Proceeds from paydowns and maturities	39,159	50,075	57,675
Proceeds from sales	84,616	162,748	149,758
Purchases	(126,258)	(248,785)	(397,145)
Proceeds from sales and securitizations of loans held-for-investment	44,892	35,845	23,559
Other changes in loans, net	(128,968)	(91,797)	(50,263)
All other investing activities, net	(11,932)	(11,044)	(7,341)
Net cash (used in) investing activities	(137,819)	(129,344)	(261,912)
Net change in:
Deposits	(136,895)	293,764	602,765
Federal funds purchased and securities loaned or sold under repurchase agreements	8,455	(20,799)	31,528
Short-term borrowings	(8,984)
Short-term borrowings		7,773	4,438
Beneficial interests issued by consolidated VIEs	2,205	(4,254)	1,347
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
Effect of exchange rate changes on cash and due from banks and deposits with banks	(16,643)	(11,508)	9,155
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