CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
INTEREST INCOME:
Interest and fees on loans and leases	$ 896	$ 790	$ 1,764	$ 1,569
Interest and fees on loans held for sale, at fair value	3	3	6	5
Interest and fees on other loans held for sale	4	3	5	4
Investment securities	141	155	286	314
Interest-bearing deposits in banks	2	1	4	2
Total interest income	1,046	952	2,065	1,894
INTEREST EXPENSE:
Deposits	63	60	123	112
Federal funds purchased and securities sold under agreements to repurchase	0	2	1	9
Other short-term borrowed funds	12	19	23	34
Long-term borrowed funds	48	31	91	63
Total interest expense	123	112	238	218
Net interest income	923	840	1,827	1,676
Provision for credit losses	90	77	181	135
Net interest income after provision for credit losses	833	763	1,646	1,541
NONINTEREST INCOME:
Service charges and fees	150	139	294	274
Card fees	51	60	101	112
Trust and investment services fees	38	41	75	77
Capital markets fees	35	30	57	52
Foreign exchange and letter of credit fees	21	22	42	45
Mortgage banking fees	25	30	43	63
Bank-owned life insurance income	13	14	26	26
Securities gains, net	4	9	13	17
Net securities impairment losses recognized in earnings	(7)	(2)	(8)	(3)
Other income	25	17	42	44
Total noninterest income	355	360	685	707
NONINTEREST EXPENSE:
Salaries and employee benefits	432	411	857	830
Outside services	86	99	177	178
Occupancy	76	90	152	170
Equipment expense	64	65	129	128
Amortization of software	41	37	80	73
Other operating expense	128	139	243	272
Total noninterest expense	827	841	1,638	1,651
Income before income tax expense	361	282	693	597
Income tax expense	118	92	227	198
NET INCOME	243	190	466	399
Net income available to common stockholders	$ 243	$ 190	$ 459	$ 399
Weighted-average common shares outstanding:
Basic (in Shares)	528,968,330	537,729,248	528,519,489	541,986,653
Diluted (in Shares)	530,365,203	539,909,366	530,396,871	544,804,268
Per common share information:
Basic earnings (in Dollars per Share)	$ 0.46	$ 0.35	$ 0.87	$ 0.74
Diluted earnings (in Dollars per Share)	0.46	0.35	0.87	0.73
Dividends declared and paid (in Dollars per Share)	$ 0.12	$ 0.10	$ 0.22	$ 0.20