Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Interest Income
Interest and fees on loans and leases	$ 1,524	$ 1,412	$ 4,475	$ 3,898
Interest and dividends on securities	262	232	803	704
Interest on other earning assets	9	6	43	30
Total interest income	1,795	1,650	5,321	4,632
Interest Expense
Interest on deposits	62	61	190	171
Interest on short-term borrowings	2	1	7	3
Interest on long-term debt	121	124	368	370
Total interest expense	185	186	565	544
Net Interest Income	1,610	1,464	4,756	4,088
Provision for credit losses	148	103	443	299
Net Interest Income After Provision for Credit Losses	1,462	1,361	4,313	3,789
Noninterest Income
Insurance income	410	354	1,294	1,216
Service charges on deposits	172	167	492	466
Mortgage banking income	154	111	356	351
Investment banking and brokerage fees and commissions	101	105	300	307
Trust and investment advisory revenues	68	63	197	176
Bankcard fees and merchant discounts	61	57	177	162
Checkcard fees	50	45	145	127
Operating lease income	34	32	103	91
Income from bank-owned life insurance	35	29	97	86
FDIC loss share income, net	(18)	(58)	(142)	(201)
Other income	97	85	246	226
Securities gains (losses), net
Gross realized gains	0	39	45	41
Gross realized losses	0	(40)	0	(40)
OTTI charges	0	0	0	(2)
Non-credit portion recognized in OCI	0	(1)	0	(2)
Total securities gains (losses), net	0	(2)	45	(3)
Total noninterest income	1,164	988	3,310	3,004
Noninterest Expense
Personnel expense	1,006	882	2,960	2,576
Occupancy and equipment expense	203	183	588	516
Software expense	63	50	167	140
Loan-related expense	33	38	101	113
Outside IT services	51	35	136	94
Professional services	27	42	75	101
Amortization of intangibles	38	29	112	73
Regulatory charges	41	25	103	73
Foreclosed property expense	9	15	28	42
Merger-related and restructuring charges, net	43	77	158	115
(Gain) loss on early extinguishment of debt	0	0	(1)	172
Other expense	197	218	626	654
Total noninterest expense	1,711	1,594	5,053	4,669
Earnings
Income before income taxes	915	755	2,570	2,124
Provision for income taxes	273	222	771	543
Net income	642	533	1,799	1,581
Noncontrolling interests	0	4	9	36
Dividends on preferred stock	43	37	123	111
Net income available to common shareholders	$ 599	$ 492	$ 1,667	$ 1,434
Basic EPS (in dollars per share)	$ 0.74	$ 0.64	$ 2.08	$ 1.95
Diluted EPS (in dollars per share)	0.73	0.64	2.05	1.92
Cash dividends declared (in dollars per share)	$ 0.30	$ 0.27	$ 0.85	$ 0.78
Basic weighted average shares outstanding (in shares)	812,521	764,435	802,694	737,141
Diluted weighted average shares outstanding (in shares)	823,106	774,023	812,407	746,822