Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
INTEREST INCOME
Interest and fees on loans		$ 619	$ 581	$ 1,875	$ 1,658
Interest on investment securities		75	66	222	194
Interest on short-term investments		17	28	51	63
Total interest income		711	675	2,148	1,915
INTEREST EXPENSE
Interest on deposits		73	35	192	79
Interest on short-term borrowings		2	1	9	1
Interest on medium- and long-term debt	[1]	50	40	152	97
Total interest expense		125	76	353	177
Net interest income		586	599	1,795	1,738
Provision for credit losses		35	0	66	(17)
Net interest income after provision for credit losses		551	599	1,729	1,755
NONINTEREST INCOME
Card Fees		67	61	195	180
Service charges on deposit accounts		51	53	153	160
Fiduciary income		53	51	154	155
Commercial lending fees		23	21	66	62
Foreign exchange income		11	12	33	36
Letter of credit fees		10	9	29	30
Bank-owned life insurance		11	11	31	29
Brokerage fees		7	7	21	20
Net securities gains (losses)		0	(20)	(8)	(19)
Other noninterest income		23	29	70	73
Total noninterest income		256	234	744	726
NONINTEREST EXPENSES
Salaries and benefits expense		253	254	763	759
Outside processing fee expense		66	65	194	190
Net occupancy expense		39	38	113	113
Software expense		30	32	87	95
Equipment expense		13	12	37	34
FDIC insurance expense		6	11	17	36
Advertising expense		10	8	24	22
Restructuring charges		0	12	0	39
Other noninterest expenses		18	20	57	58
Total noninterest expenses		435	452	1,292	1,346
Income before income taxes		372	381	1,181	1,135
Provision for income taxes		80	63	252	210
Net income (loss)		292	318	929	925
Less income allocated to participating securities		2	2	5	6
Net income attributable to shares		$ 290	$ 316	$ 924	$ 919
Basic earnings per share		$ 1.98	$ 1.89	$ 6.08	$ 5.41
Diluted earnings per share		$ 1.96	$ 1.86	$ 6.02	$ 5.32
Comprehensive income		$ 338	$ 296	$ 1,202	$ 764
Cash dividends declared on stock		$ 97	$ 100	$ 302	$ 210
Cash dividends declared per share		$ 0.67	$ 0.60	$ 2.01	$ 1.24

[1] Includes the effects of hedging.