Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest income:
Interest and fees on loans	$ 433	$ 421
Interest on money market investments	4	7
Interest on Securities	78	47
Interest on securities:
Total interest income	515	475
Interest expense:
Interest on deposits	13	12
Interest on short- and long-term borrowings	13	10
Total interest expense	26	22
Net interest income	489	453
Provision for loan losses	23	42
Net interest income after provision for loan losses	466	411
Noninterest income:
Service charges and fees on deposit accounts	42	41
Other service charges, commissions and fees	49	49
Wealth management income	10	8
Loan sales and servicing income	7	8
Capital markets and foreign exchange	7	6
Noninterest income, Customer-related Fees	115	112
Investment Income, Nonoperating	12	5
Gain (Loss) on Sale of Securities, Net	5	0
Other	0	0
Total noninterest income	132	117
Noninterest expense:
Salaries and employee benefits	262	258
Occupancy, net	33	30
Furniture, equipment and software, net	32	32
Other real estate expense, net	0	(1)
Credit-related expense	8	6
Provision for unfunded lending commitments	5	6
Professional and legal services	14	12
Advertising	5	6
FDIC premiums	12	7
Amortization of core deposit and other intangibles	2	2
Other	51	50
Total noninterest expense	414	396
Income before Income taxes	184	132
Income taxes	45	41
Net income	139	91
Dividends on preferred stock	(10)	(12)
Preferred Stock Redemption	0	0
Net earnings applicable to common shareholders	$ 129	$ 79
Weighted average common shares outstanding during the period:
Basic shares (in thousands)	202,347	203,967
Diluted shares (in thousands)	210,405	204,096
Net earnings per common share:
Basic	$ 0.63	$ 0.38
Diluted	$ 0.61	$ 0.38