Consolidated Statements Of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
INTEREST INCOME
Interest and fees on loans	$ 2,439		$ 2,262		$ 1,872
Interest on investment securities	297		265		250
Interest on short-term investments	71		92		60
Total interest income	2,807		2,619		2,182
INTEREST EXPENSE
Interest on deposits	262		122		42
Interest on short-term borrowings	9		1		3
Interest on medium- and long-term debt	197	[1]	144	[1]	76
Total interest expense	468		267		121
Net interest income	2,339		2,352		2,061
Provision for credit losses	74		(1)		74
Net interest income after provision for credit losses	2,265		2,353		1,987
NONINTEREST INCOME
Card fees	257		244		333
Fiduciary income	206		206		198
Service charges on deposit accounts	203		211		227
Commercial lending fees	91		85		85
Foreign exchange income	44		47		45
Bank-owned life insurance	41		39		43
Letter of credit fees	38		40		45
Brokerage fees	28		27		23
Net securities losses	(7)		(19)		0
Other noninterest income	109		96		108
Total noninterest income	1,010		976		1,107
NONINTEREST EXPENSES
Salaries and benefits expense	1,020		1,009		961
Outside processing fee expense	264		255		366
Occupancy expense	154		152		154
Software expense	117		125		126
Equipment expense	50		48		45
Advertising expense	34		30		28
FDIC insurance expense	23		42		51
Restructuring charges	0		53		45
Other noninterest expenses	81		80		84
Total noninterest expenses	1,743		1,794		1,860
Income before income taxes	1,532		1,535		1,234
Provision for income taxes	334		300		491
Net Income	1,198		1,235		743
Less income allocated to participating securities	7		8		5
Net income attributable to common shares	$ 1,191		$ 1,227		$ 738
Basic earnings per common share	$ 7.95		$ 7.31		$ 4.23
Diluted earnings per common share	$ 7.87		$ 7.20		$ 4.14
Cash dividends declared on common stock	$ 398		$ 309		$ 193
Cash dividends declared per common share	$ 2.68		$ 1.84		$ 1.09

[1] Includes the effects of hedging.