Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating activities
Net income	$ 8,282	$ 14,300
Adjustments to reconcile net income to net cash used in operating activities:
Provision for credit losses	1,463	(4,156)
Depreciation and amortization	1,820	2,070
Deferred tax (benefit)/expense	(730)	998
Other	1,200	890
Originations and purchases of loans held-for-sale	(66,262)	(85,457)
Proceeds from sales, securitizations and paydowns of loans held-for-sale	75,558	75,547
Net change in:
Trading assets	(91,213)	(34,262)
Securities borrowed	(18,979)	(18,951)
Accrued interest and accounts receivable	(49,719)	(24,323)
Other assets	1,319	7,131
Trading liabilities	29,993	(7)
Accounts payable and other liabilities	64,738	23,559
Other operating adjustments	613	(1,211)
Net cash (used in) operating activities	(41,917)	(43,872)
Net change in:
Federal funds sold and securities purchased under resale agreements	(40,407)	23,791
Held-to-maturity securities:
Proceeds from paydowns and maturities	9,512	14,700
Purchases	(13,223)	(31,348)
Available-for-sale securities:
Proceeds from paydowns and maturities	11,291	14,096
Proceeds from sales	16,971	80,823
Purchases	(45,357)	(95,958)
Proceeds from sales and securitizations of loans held-for-investment	9,987	6,619
Other changes in loans, net	(18,185)	3,321
All other investing activities, net	(3,197)	(653)
Net cash provided by/(used in) investing activities	(72,608)	15,391
Net change in:
Deposits	99,691	120,501
Federal funds purchased and securities loaned or sold under repurchase agreements	29,600	88,844
Short-term borrowings	4,300	9,387
Beneficial interests issued by consolidated VIEs	52	(1,439)
Proceeds from long-term borrowings	20,651	24,162
Payments of long-term borrowings	(13,094)	(14,983)
Proceeds from issuance of preferred stock	0	1,500
Redemption of preferred stock	(2,000)	0
Treasury stock repurchased	(2,455)	(4,806)
Dividends paid	(3,430)	(3,193)
All other financing activities, net	(543)	(1,062)
Net cash provided by financing activities	132,772	218,911
Effect of exchange rate changes on cash and due from banks and deposits with banks	(4,549)	(6,967)
Net increase in cash and due from banks and deposits with banks	13,698	183,463
Cash and due from banks and deposits with banks at the beginning of the period	740,834	527,609
Cash and due from banks and deposits with banks at the end of the period	754,532	711,072
Cash interest paid	1,088	1,127
Cash income taxes paid, net	$ 705	$ 707