Consolidated Statements of Income - USD ($) shares in Thousands, $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2015		Sep. 30, 2014
Interest Income
Interest and fees on loans	$ 1,139		$ 1,152		$ 3,345		$ 3,464
Interest and fees on loans held for sale	20		30		66		61
Interest and Dividend Income, Securities, Available-for-sale	153		153		430		456
Trading account interest and other	21		18		61		55
Total interest income	1,333		1,353		3,902		4,036
Interest Expense
Interest on deposits	54		54		165		180
Interest Expense, Long-term Debt	60		74		196		198
Interest on other borrowings	8		10		23		29
Total interest expense	122		138		384		407
Net, interest income	1,211		1,215		3,518		3,629
Provision for Loan, Lease, and Other Losses	32	[1]	93	[1]	114	[2]	268	[2]
Interest Income (Expense), after Provision for Loan Loss	1,179		1,122		3,404		3,361
Noninterest Income
Service charges on deposit accounts	159		169		466		483
Fees and Commissions, Other	97		95		285		274
Fees and Commissions, Credit and Debit Cards	83		81		247		239
Investment Banking Revenue	115		88		357		296
Trading Gain (Loss)	31		46		140		141
Fees and Commissions, Fiduciary and Trust Activities	86		93		255		339
Investment Advisory, Management and Administrative Fees	77		76		229		224
Fees and Commissions, Mortgage Banking	58		45		217		140
Servicing Fees, Net	40		44		113		143
Gain (Loss) on Disposition of Business	0		0		0		105
Gain (Loss) on Sale of Securities, Net	7		(9)		21		(11)
Noninterest Income, Other Operating Income	58		52		173		155
Total noninterest income	811		780		2,503		2,528
Noninterest Expense
Employee compensation	641		649		1,926		1,967
Other Labor-related Expenses	84		81		326		326
Outside processing and software	200		184		593		535
Net occupancy expense	86		84		255		254
Equipment Expense	41		41		123		127
Federal Deposit Insurance Corporation Premium Expense	32		29		104		109
Marketing and Advertising Expense	42		35		104		91
Credit and collection services	8		21		52		67
Professional Fees	23		16		48		43
Operating losses	3		29		33		268
Amortization	9		7		22		14
Other Noninterest Expense	(95)		(83)		(286)		(333)
Noninterest Expense	1,264		1,259		3,872		4,134
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	726		643		2,035		1,755
Income Tax Expense (Benefit)	187		67		579		364
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	539		576		1,456		1,391
Net Income (Loss) Attributable to Noncontrolling Interest	2		0		7		11
Net Income (Loss) Attributable to Parent	537		576		1,449		1,380
Net Income (Loss) Available to Common Stockholders, Basic	$ 519		$ 563		$ 1,396		$ 1,343
Earnings Per Share, Diluted	$ 1.00		$ 1.06		$ 2.67		$ 2.51
Earnings Per Share, Basic	1.01		1.07		2.70		2.54
Common Stock, Dividends, Per Share, Declared	$ 0.24		$ 0.20		$ 0.68		$ 0.50
Weighted Average Number of Shares Outstanding, Diluted	518,677		533,230		522,634		535,222
Weighted Average Number of Shares Outstanding, Basic	513,010		527,402		516,970		529,429

[1] Provision/(benefit) for credit losses represents net charge-offs by segment combined with an allocation to the segments of the provision/(benefit) attributable to quarterly changes in the ALLL and unfunded commitment reserve balances.

[2] Provision/(benefit) for credit losses represents net charge-offs by segment combined with an allocation to the segments of the provision/(benefit) attributable to quarterly changes in the ALLL and unfunded commitment reserve balances.