Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Interest income:
Interest and Fees and Loans	$ 497	$ 433
Interest on Money Market Investments	6	4
Interest on Securities	86	78
Total Interest Income	589	515
Interest expense:
Interest on Deposits	20	13
Interest on short- and long-term borrowings	27	13
Total Interest Expense	47	26
Net interest income	542	489
Provision for loan losses	(40)	23
Net interest income after provision for loan losses	582	466
Noninterest income:
Service charges and fees on deposit accounts	42	42
Other service charges, commissions, and fees	55	49
Wealth management and trust income	12	10
Loan Sales and Servicing Income	6	7
Capital markets and foreign exchange	8	7
Customer-related Fees	123	115
Dividends and Other Investment Income	11	12
Securities Gains, Net	0	5
Other	4	0
Noninterest Income	138	132
Noninterest expense:
Salaries and Employee Benefits	269	261
Occupancy, Net	31	34
Furniture, Equipment, and Software, Net	33	32
Credit-Related Expense	7	7
Provision for unfunded lending commitments	(7)	(5)
Professional and Legal Fees	12	14
Advertising	5	5
FDIC Premiums	13	12
Other	49	54
Total Noninterest Expense	412	414
Income Before Income Taxes	308	184
Income taxes	70	45
Net income	238	139
Preferred Stock Dividends	(7)	(10)
Net Earnings Available to Common Shareholders	$ 231	$ 129
Weighted average common shares outstanding during the period:
Basic Shares (in thousands)	196,722	202,347
Diluted Shares (in Thousands)	210,243	210,405
Earnings Per Common Share, Basic	$ 1.16	$ 0.63
Earnings Per Common Share, Diluted	$ 1.09	$ 0.61