Consolidated Statements Of Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
INTEREST INCOME
Interest and fees on loans	$ 381	$ 381	$ 1,142	$ 1,159
Interest on investment securities	52	54	160	159
Interest on short-term investments	3	4	9	10
Total interest income	436	439	1,311	1,328
INTEREST EXPENSE
Interest on deposits	11	13	33	43
Interest on medium- and long-term debt	11	14	38	43
Total interest expense	22	27	71	86
Net interest income	414	412	1,240	1,242
Provision for credit losses	5	8	25	37
Net interest income after provision for credit losses	409	404	1,215	1,205
NONINTEREST INCOME
Service charges on deposit accounts	54	53	162	161
Fiduciary income	44	41	133	128
Commercial lending fees	26	28	69	71
Card fees	20	20	59	55
Letter of credit fees	14	17	43	49
Bank-owned life insurance	11	12	31	31
Foreign exchange income	9	9	30	27
Brokerage fees	4	4	13	14
Net securities (losses) gains	(1)	1	0	(1)
Other noninterest income	34	43	103	128
Total noninterest income	215	228	643	663
NONINTEREST EXPENSES
Salaries and benefits expense	248	255	735	751
Net occupancy expense	46	41	125	119
Equipment expense	14	15	43	45
Outside processing fee expense	31	31	89	89
Software expense	25	22	72	66
Litigation-related expense	(2)	(4)	4	0
FDIC insurance expense	9	9	25	26
Advertising expense	5	6	16	18
Gain on debt redemption	(32)	0	(32)	(1)
Other noninterest expenses	53	42	130	136
Total noninterest expenses	397	417	1,207	1,249
Income before income taxes	227	215	651	619
Provision for income taxes	73	68	207	195
Net Income	154	147	444	424
Less income allocated to participating securities	2	2	6	6
Net income attributable to common shares	152	145	438	418
Basic earnings per common share	$ 0.85	$ 0.80	$ 2.44	$ 2.28
Diluted earnings per common share	$ 0.82	$ 0.78	$ 2.35	$ 2.23
Comprehensive income	141	144	518	296
Cash dividends declared on common stock	$ 36	$ 31	$ 107	$ 95
Cash dividends declared per common share	$ 0.20	$ 0.17	$ 0.59	$ 0.51