Interim Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income before noncontrolling interests	$ 533	$ 562
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for credit losses	11	19
Changes in fair values of equity warrant assets, net of proceeds from exercises	(33)	(29)
Changes in fair values of derivatives, net	104	14
Gains on investment securities, net	(85)	(167)
Distributions of earnings from non-marketable and other equity securities	15	22
Depreciation and amortization	50	31
Amortization of premiums and discounts on investment securities, net	109	49
Amortization of share-based compensation	51	27
Amortization of deferred loan fees	(70)	(53)
Deferred income tax expense	47	58
Excess tax benefit from exercise of stock options and vesting of restricted shares	(10)	(11)
Changes in other assets and liabilities:
Accrued interest receivable and payable, net	(13)	(41)
Accounts receivable and payable, net	4	10
Income tax receivable and payable, net	90	93
Accrued compensation	(560)	(279)
Foreign exchange spot contracts, net	143	107
Other, net	(27)	(198)
Net cash provided by operating activities	359	214
Cash flows from investing activities:
Purchases of AFS securities	(5,665)	(450)
Sales proceeds	5,099	0
Proceeds from maturities and paydowns of AFS securities	462	1,654
Purchases of HTM securities	(4,631)	(21,685)
Proceeds from maturities and paydowns of HTM securities	3,974	1,770
Purchases of non-marketable and other equity securities	(106)	(21)
Proceeds from sales and distributions of capital of non-marketable and other securities	41	274
Net increase in loans	(2,342)	(2,538)
Purchases of premises and equipment	(32)	(14)
Net cash used for investing activities	(3,200)	(21,010)
Cash flows from financing activities:
Net increase in deposits	8,931	22,168
Net (decrease) increase in short-term borrowings	(22)	18
Proceeds from issuance of long-term debt	0	494
(Distributions to noncontrolling interests), net of contributions from noncontrolling interests	(11)	(12)
Net proceeds from the issuance of preferred stock	0	739
Payment of preferred stock dividend	(43)	(5)
Proceeds from issuance of common stock, ESPP and ESOP, net of restricted stock awards	(27)	974
Net cash provided by financing activities	8,828	24,376
Net increase in cash and cash equivalents	5,987	3,580
Cash and cash equivalents at beginning of period	14,619	17,675
Cash and cash equivalents at end of period	20,606	21,255
Cash paid during the period for:
Interest	43	17
Income taxes	31	29
Noncash items during the period:
Changes in unrealized gains and losses on AFS securities, net of tax	(736)	(594)
Transfers from AFS securities to HTM	$ 0	$ 2,868