Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest income:
Interest and fees on loans	$ 505	$ 581	$ 1,551	$ 1,731
Interest on money market investments	2	8	11	26
Interest on securities	74	88	235	279
Total interest income	581	677	1,797	2,036
Interest expense:
Interest on deposits	18	69	92	192
Interest on short- and long-term borrowings	8	41	40	131
Total interest expense	26	110	132	323
Net interest income	555	567	1,665	1,713
Provision for loan losses	45	8	446	30
Provision for unfunded lending commitments	10	2	35	5
Total provision for credit losses	55	10	481	35
Net interest income after provision for credit losses	500	557	1,184	1,678
Noninterest income:
Commercial account fees	32	31	93	90
Card fees	21	24	61	70
Retail and business banking fees	17	20	50	58
Loan-related fees and income	32	21	84	55
Capital markets and foreign exchange fees	16	23	58	59
Wealth management and trust fees	14	16	46	45
Other customer-related fees	7	5	19	15
Customer-related fees	139	140	411	392
Fair value and nonhedge derivative gain (loss)	8	(6)	(15)	(15)
Dividends and other investment income	6	10	17	33
Securities gains (losses), net	4	2	(5)	0
Total noninterest income	157	146	408	410
Noninterest expense:
Salaries and employee benefits	269	273	810	835
Occupancy, net	33	34	97	99
Furniture, equipment and software, net	32	34	97	101
Other real estate expense, net	0	(2)	0	(3)
Credit-related expense	6	2	16	16
Professional and legal services	12	10	34	33
Advertising	7	6	13	17
FDIC premiums	7	7	18	19
Other	76	51	194	153
Total noninterest expense	442	415	1,279	1,270
Income before income taxes	215	288	313	818
Income taxes	40	66	58	185
Net income	175	222	255	633
Preferred stock dividends	(8)	(8)	(25)	(25)
Net earnings applicable to common shareholders	$ 167	$ 214	$ 230	$ 608
Weighted average common shares outstanding during the period:
Basic shares (in shares)	163,608	173,160	163,764	178,985
Weighted average diluted common shares outstanding (in shares)	163,779	181,870	166,029	188,895
Net earnings per common share:
Basic (in dollars per share)	$ 1.01	$ 1.23	$ 1.40	$ 3.38
Diluted (in dollars per share)	$ 1.01	$ 1.17	$ 1.38	$ 3.20