Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest income:
Interest and fees on loans	$ 1,935	$ 2,050	$ 2,289
Interest on money market investments	21	14	32
Interest on securities	311	304	362
Total interest income	2,267	2,368	2,683
Interest expense:
Interest on deposits	30	105	254
Interest on short- and long-term borrowings	29	47	157
Total interest expense	59	152	411
Net interest income	2,208	2,216	2,272
Provision for loan losses	(258)	385	37
Provision for unfunded lending commitments	(18)	29	2
Total provision for credit losses	(276)	414	39
Net interest income after provision for credit losses	2,484	1,802	2,233
Noninterest income:
Commercial account fees	134	125	121
Card fees	95	82	92
Retail and business banking fees	74	68	78
Loan-related fees and income	95	109	75
Capital markets and foreign exchange fees	73	77	78
Wealth management fees	50	44	40
Other customer-related fees	54	44	41
Customer-related fees	575	549	525
Fair value and nonhedge derivative income (loss)	14	(6)	(9)
Dividends and other income	43	24	43
Securities gains, net	71	7	3
Total noninterest income	703	574	562
Noninterest expense:
Salaries and employee benefits	1,127	1,087	1,141
Occupancy, net	131	130	133
Furniture, equipment and software, net	128	127	135
Other real estate expense, net	0	1	(3)
Credit-related expense	26	22	20
Professional and legal services	68	52	47
Advertising	19	19	19
FDIC premiums	25	25	25
Other noninterest expense	217	241	225
Total noninterest expense	1,741	1,704	1,742
Income before income taxes	1,446	672	1,053
Income taxes	317	133	237
Net income	1,129	539	816
Preferred stock dividends	(29)	(34)	(34)
Net earnings applicable to common shareholders	$ 1,100	$ 505	$ 782
Weighted average common shares outstanding during the year:
Basic shares (in shares)	159,913	163,737	175,984
Diluted shares (in shares)	160,234	165,613	186,504
Net earnings per common share:
Basic (in dollars per share)	$ 6.80	$ 3.06	$ 4.41
Diluted (in dollars per share)	$ 6.79	$ 3.02	$ 4.16