Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Interest income:
Interest and fees on loans	$ 484	$ 505	$ 1,464	$ 1,551
Interest on money market investments	7	2	14	11
Interest on securities	78	74	223	235
Total interest income	569	581	1,701	1,797
Interest expense:
Interest on deposits	7	18	23	92
Interest on short- and long-term borrowings	7	8	23	40
Total interest expense	14	26	46	132
Net interest income	555	555	1,655	1,665
Provision for loan losses	(45)	45	(281)	446
Provision for unfunded lending commitments	(1)	10	(20)	35
Total provision for credit losses	(46)	55	(301)	481
Net interest income after provision for credit losses	601	500	1,956	1,184
Noninterest income:
Commercial account fees	34	32	100	93
Card fees	25	21	70	61
Retail and business banking fees	20	17	55	50
Loan-related fees and income	27	32	73	84
Capital markets and foreign exchange fees	17	16	49	58
Wealth management fees	13	10	37	32
Other customer-related fees	15	11	39	33
Customer-related fees	151	139	423	411
Fair value and nonhedge derivative gain (loss)	2	8	15	(15)
Dividends and other investment income	9	6	24	17
Securities gains (losses), net	(23)	4	51	(5)
Total noninterest income	139	157	513	408
Noninterest expense:
Salaries and employee benefits	285	269	845	810
Occupancy, net	33	33	99	97
Furniture, equipment and software, net	31	32	95	97
Other real estate expense, net	0	0	0	0
Credit-related expense	7	6	19	16
Professional and legal services	16	12	53	34
Advertising	4	7	13	13
FDIC premiums	5	7	18	18
Other	48	76	150	194
Total noninterest expense	429	442	1,292	1,279
Income before income taxes	311	215	1,177	313
Income taxes	71	40	261	58
Net income	240	175	916	255
Preferred stock dividends	(6)	(8)	(23)	(25)
Net earnings applicable to common shareholders	$ 234	$ 167	$ 893	$ 230
Weighted average common shares outstanding during the period:
Basic shares (in shares)	160,221	163,608	162,159	163,764
Diluted shares (in shares)	160,480	163,779	162,460	166,029
Net earnings per common share:
Basic (in dollars per share)	$ 1.45	$ 1.01	$ 5.44	$ 1.40
Diluted (in dollars per share)	$ 1.45	$ 1.01	$ 5.43	$ 1.38