Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
INTEREST INCOME
Interest and fees on loans		$ 517	$ 621
Interest on investment securities		74	72
Interest on short-term investments		18	17
Total interest income		609	710
INTEREST EXPENSE
Interest on deposits		56	52
Interest on short-term borrowings		0	1
Interest on medium- and long-term debt	[1]	40	51
Total interest expense		96	104
Net interest income		513	606
Provision for credit losses		411	(13)
Net interest income after provision for credit losses		102	619
NONINTEREST INCOME
Card Fees		59	63
Fiduciary income		54	49
Service charges on deposit accounts		49	51
Commercial lending fees		17	22
Foreign exchange income		11	11
Bank-owned life insurance		12	9
Letter of credit fees		9	9
Brokerage fees		7	7
Net securities losses		(1)	(8)
Other noninterest income		20	25
Total noninterest income		237	238
NONINTEREST EXPENSES
Salaries and benefits expense		242	265
Outside processing fee expense		57	63
Occupancy expense		37	37
Software expense		37	29
Equipment expense		12	12
Advertising expense		7	5
FDIC insurance expense		8	5
Other noninterest expenses		25	17
Total noninterest expenses		425	433
(Loss) income before income taxes		(86)	424
(Benefit) provision for income taxes		(21)	85
Net (loss) income		(65)	339
Less income allocated to participating securities		0	2
Net (loss) income attributable to common shares		$ (65)	$ 337
Basic (losses) earnings per common share		$ (0.46)	$ 2.14
Diluted (losses) earnings per common share		$ (0.46)	$ 2.11
Comprehensive income		$ 344	$ 435
Cash dividends declared on common stock		$ 94	$ 105
Cash dividends declared per common share		$ 0.68	$ 0.67

[1] Includes the effects of hedging.