Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest income:
Loans	$ 3,208	$ 1,966	$ 1,520
Investment securities:
Taxable	2,113	1,199	635
Non-taxable	140	106	61
Federal funds sold, securities purchased under agreements to resell and other short-term investment securities	212	18	26
Total interest income	5,673	3,289	2,242
Interest expense:
Deposits	862	62	60
Borrowings	326	48	25
Total interest expense	1,188	110	85
Net interest income	4,485	3,179	2,157
Provision for credit losses	420	123	220
Net interest income after provision for credit losses	4,065	3,056	1,937
Noninterest income:
Gains (losses) on investment securities, net	(285)	761	421
Gains on equity warrant assets, net	148	560	237
Client investment fees	386	75	132
Wealth management and trust fees	83	44	0
Foreign exchange fees	285	262	179
Credit card fees	150	131	98
Deposit service charges	126	112	90
Lending related fees	94	76	57
Letters of credit and standby letters of credit fees	57	51	47
Investment banking revenue	420	459	414
Commissions	98	79	67
Other	166	128	98
Total noninterest income	1,728	2,738	1,840
Noninterest expense:
Compensation and benefits	2,293	2,015	1,318
Professional services	480	392	247
Premises and equipment	269	178	127
Net occupancy	101	83	101
Business development and travel	85	24	24
FDIC and state assessments	75	48	28
Merger-related charges	50	129	0
Other	268	201	190
Total noninterest expense	3,621	3,070	2,035
Income before income tax expense	2,172	2,724	1,742
Income tax expense	563	651	448
Net income before noncontrolling interests and dividends	1,609	2,073	1,294
Net loss (income) attributable to noncontrolling interests	63	(240)	(86)
Preferred stock dividends	(163)	(63)	(17)
Net income available to common stockholders	$ 1,509	$ 1,770	$ 1,191
Earnings per common share—basic (usd per share)	$ 25.58	$ 31.74	$ 23.05
Earnings per common share—diluted (usd per share)	$ 25.35	$ 31.25	$ 22.87