Consolidated Statements Of Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018		Dec. 31, 2017		Dec. 31, 2016
INTEREST INCOME
Interest and fees on loans	$ 2,262		$ 1,872		$ 1,635
Interest on investment securities	265		250		247
Interest on short-term investments	92		60		27
Total interest income	2,619		2,182		1,909
INTEREST EXPENSE
Interest on deposits	122		42		40
Interest on short-term borrowings	1		3		0
Interest on medium- and long-term debt	144	[1]	76	[1]	72
Total interest expense	267		121		112
Net interest income	2,352		2,061		1,797
Provision for credit losses	(1)		74		248
Net interest income after provision for credit losses	2,353		1,987		1,549
NONINTEREST INCOME
Card fees	244		333		303
Service charges on deposit accounts	211		227		219
Fiduciary income	206		198		190
Commercial lending fees	85		85		89
Letter of credit fees	40		45		50
Bank-owned life insurance	39		43		42
Foreign exchange income	47		45		42
Brokerage fees	27		23		19
Net securities losses	(19)		0		0
Other noninterest income	96		108		97
Total noninterest income	976		1,107		1,051
NONINTEREST EXPENSES
Salaries and benefits expense	1,009		961		989
Outside processing fee expense	255		366		336
Net occupancy expense	152		154		157
Software expense	125		126		119
Restructuring charges	53		45		93
Equipment expense	48		45		53
FDIC insurance expense	42		51		54
Advertising expense	30		28		21
Other noninterest expenses	80		84		108
Total noninterest expenses	1,794		1,860		1,930
Income before income taxes	1,535		1,234		670
Provision for income taxes	300		491		193
Net Income	1,235		743		477
Less income allocated to participating securities	8		5		4
Net income attributable to common shares	$ 1,227		$ 738		$ 473
Basic earnings per common share	$ 7.31		$ 4.23		$ 2.74
Diluted earnings per common share	$ 7.20		$ 4.14		$ 2.68
Dividends, Common Stock, Cash	$ 309		$ 193		$ 154
Common Stock, Dividends, Per Share, Declared	$ 1.84		$ 1.09		$ 0.89

[1] Includes the effects of hedging.