Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Interest income:
Interest and Fees and Loans	$ 514	$ 581	$ 1,046	$ 1,151
Interest on Money Market Investments	1	8	9	17
Interest on Securities	80	95	161	191
Total interest income	595	684	1,216	1,359
Interest expense:
Interest on Deposits	23	66	74	123
Interest on short- and long-term borrowings	9	49	31	91
Total interest expense	32	115	105	214
Net interest income	563	569	1,111	1,145
Provision for loan losses	161	20	401	22
Provision for unfunded lending commitments	7	1	25	3
Total provision for credit losses	168	21	426	25
Net interest income after provision for credit losses	395	548	685	1,120
Noninterest income:
Commercial account fees	30	30	61	60
Card fees	19	23	39	46
Retail and business banking fees	15	20	33	38
Loan-related fees and income	27	17	53	35
Capital markets and foreign exchange fees	18	20	42	35
Wealth management and trust fees	15	15	31	28
Other customer-related fees	6	5	12	10
Customer-related fees	130	130	271	252
Fair value and nonhedge derivative loss	(12)	(6)	(23)	(8)
Dividends and other investment income	3	11	11	22
Securities losses, net	(4)	(3)	(9)	(2)
Total noninterest income	117	132	250	264
Noninterest expense:
Salaries and employee benefits	267	274	540	562
Occupancy, net	32	32	65	65
Furniture, equipment and software, net	32	35	64	67
Other real estate expense, net	0	0	0	(1)
Credit-related expense	6	8	10	13
Professional and legal services	10	13	22	23
Advertising	3	5	6	11
FDIC Premiums	7	6	12	12
Other	73	51	118	102
Total noninterest expense	430	424	837	854
Income before income taxes	82	256	98	530
Income taxes	16	58	18	119
Net income	66	198	80	411
Preferred stock dividends	(9)	(9)	(17)	(17)
Net earnings applicable to common shareholders	$ 57	$ 189	$ 63	$ 394
Weighted average common shares outstanding during the period:
Basic shares (in shares)	163,542	179,156	163,843	181,946
Weighted average diluted common shares outstanding (in shares)	164,425	189,098	168,132	192,206
Net earnings per common share:
Basic (in dollars per share)	$ 0.34	$ 1.05	$ 0.38	$ 2.15
Diluted (in dollars per share)	$ 0.34	$ 0.99	$ 0.37	$ 2.04