Consolidated Statements of Shareholders' Equity (USD $) In Millions, except Share data, unless otherwise specified		Total USD ($)	Preferred Stock [Member] USD ($)	Common Stock [Member] USD ($)	Additional Paid-in Capital [Member] USD ($)	Retained Earnings [Member] USD ($)	Treasury Stock and Other USD ($)		Accumulated Other Comprehensive Income (Loss) [Member] USD ($)		Common Stock [Member]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, beginning of period at Dec. 31, 2012		$ 20,985	$ 725	$ 550	$ 9,174	$ 10,817	$ (590)	[1]	$ 309	[2]
Common Stock, Shares, Outstanding, beginning of period at Dec. 31, 2012				539,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent		352				352
Other Comprehensive Income (Loss), Net of Tax		(124)							(124)	[2]
Dividends, Common Stock, Cash		(27)				(27)
Dividends, Preferred Stock, Cash	[3]	(9)				(9)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period											0
Stock Issued During Period, Value, Stock Options Exercised		5			(8)		13	[1]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures											1,000,000
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		3			(33)		36	[1]
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition		7					7	[1]
Stock Issued During Period, Value, Employee Benefit Plan		2			(1)		3	[1]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, end of period at Mar. 31, 2013		21,194	725	550	9,132	11,133	(531)	[1]	185	[2]
Common Stock, Shares, Outstanding, end of period at Mar. 31, 2013				540,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, beginning of period at Dec. 31, 2013		21,422	725	550	9,115	11,936	(615)		(289)	[2]
Common Stock, Shares, Outstanding, beginning of period at Dec. 31, 2013		536,097,000		536,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent		405				405
Other Comprehensive Income (Loss), Net of Tax		89							89	[2]
Noncontrolling Interest, Period Increase (Decrease)		7					7	[1]
Dividends, Common Stock, Cash		(54)				(54)
Dividends, Preferred Stock, Cash	[3]	(9)				(9)
Treasury Stock, Shares, Acquired											(1,000,000)
Treasury Stock, Value, Acquired, Cost Method		(50)					(50)	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period											0
Stock Issued During Period, Value, Stock Options Exercised		(1)			(9)		8	[1]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures											0
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		4			7		(3)	[1]
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition		8					8	[1]
Stock Issued During Period, Value, Employee Benefit Plan		(4)			(6)		2	[1]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, end of period at Mar. 31, 2014		$ 21,817	$ 725	$ 550	$ 9,107	$ 12,278	$ (643)		$ (200)	[2]
Common Stock, Shares, Outstanding, end of period at Mar. 31, 2014		534,780,000		535,000,000

[1] At March 31, 2014, includes ($727) million for treasury stock, ($42) million for compensation element of restricted stock, and $126 million for noncontrolling interest.At March 31, 2013, includes ($569) million for treasury stock, ($76) million for compensation element of restricted stock, and $114 million for noncontrolling interest.

[2] At March 31, 2014, includes $31 million in unrealized net gains on AFS securities, $229 million in unrealized net gains on derivative financial instruments, and ($460) million related to employee benefit plans. At March 31, 2013, includes $447 million in unrealized net gains on AFS securities, $461 million in unrealized net gains on derivative financial instruments, and ($723) million related to employee benefit plans.

[3] For the three months ended March 31, 2014, dividends were $1,000 per share for both Perpetual Preferred Stock Series A and B and $1,469 per share for Perpetual Preferred Stock Series E.For the three months ended March 31, 2013, dividends were $1,000 per share for both Perpetual Preferred Stock Series A and B and $1,387 per share for Perpetual Preferred Stock Series E.