CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
INTEREST INCOME:
Interest and fees on loans and leases	$ 1,230	$ 1,040	$ 2,376	$ 2,032
Interest and fees on loans held for sale, at fair value	5	4	9	8
Interest and fees on other loans held for sale	3	2	7	3
Investment securities	165	154	333	314
Interest-bearing deposits in banks	8	5	14	8
Total interest income	1,411	1,205	2,739	2,365
INTEREST EXPENSE:
Deposits	181	102	326	188
Federal funds purchased and securities sold under agreements to repurchase	1	0	2	1
Other short-term borrowed funds	14	7	23	15
Long-term borrowed funds	94	70	176	130
Total interest expense	290	179	527	334
Net interest income	1,121	1,026	2,212	2,031
Provision for credit losses	85	70	163	166
Net interest income after provision for credit losses	1,036	956	2,049	1,865
NONINTEREST INCOME:
Service charges and fees	127	129	251	254
Card fees	60	59	121	119
Capital markets fees	48	51	87	99
Trust and investment services fees	43	39	83	78
Letter of credit and loan fees	32	31	62	60
Foreign exchange and interest rate products	34	26	61	53
Mortgage banking fees	27	30	52	53
Securities gains, net	2	3	10	7
Net impairment losses recognized in earnings on debt securities	(1)	(4)	(2)	(5)
Other income	16	6	34	31
Total noninterest income	388	370	759	749
NONINTEREST EXPENSE:
Salaries and employee benefits	453	432	923	878
Outside services	106	96	205	187
Occupancy	79	79	160	161
Equipment expense	64	64	131	131
Amortization of software	46	45	92	89
Other operating expense	127	148	247	272
Total noninterest expense	875	864	1,758	1,718
Income before income tax expense	549	462	1,050	896
Income tax expense	124	144	237	258
NET INCOME	425	318	813	638
Net income available to common stockholders	$ 425	$ 318	$ 806	$ 631
Weighted-average common shares outstanding:
Basic (in Shares)	484,744,354	506,371,846	486,114,872	507,903,141
Diluted (in Shares)	486,141,695	507,414,122	487,683,216	509,362,055
Per common share information:
Basic earnings (in Dollars per Share)	$ 0.88	$ 0.63	$ 1.66	$ 1.24
Diluted earnings (in Dollars per Share)	0.88	0.63	1.65	1.24
Dividends declared and paid (in Dollars per Share)	$ 0.22	$ 0.14	$ 0.44	$ 0.28