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]	Ridgeworth Capital Management [Member] USD ($)	Ridgeworth Capital Management [Member] Additional Paid-in Capital [Member] USD ($)	Ridgeworth Capital Management [Member] Treasury Stock and Other USD ($)
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		729				729
Other Comprehensive Income (Loss), Net of Tax		(592)							(592)	[2]
Noncontrolling Interest, Period Increase (Decrease)		1					1	[1]
Dividends, Common Stock, Cash		(81)				(81)
Dividends, Preferred Stock, Cash	[3]	(18)				(18)
Treasury Stock, Shares, Acquired											(2,000,000)
Treasury Stock, Value, Acquired, Cost Method		(50)					(50)	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period											1,000,000
Stock Issued During Period, Value, Stock Options Exercised		10			(15)		25	[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		4			(33)		37	[1]
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition		15					15	[1]
Stock Issued During Period, Value, Employee Benefit Plan		4			0		4	[1]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, end of period at Jun. 30, 2013		21,007	725	550	9,126	11,447	(558)	[1]	(283)	[2]
Common Stock, Shares, Outstanding, end of period at Jun. 30, 2013				539,000,000
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		804				804
Other Comprehensive Income (Loss), Net of Tax		230							230	[2]
Noncontrolling Interest, Period Increase (Decrease)		4					4	[1]
Dividends, Common Stock, Cash		(160)				(160)
Dividends, Preferred Stock, Cash	[3]	(19)				(19)
Treasury Stock, Shares, Acquired											(3,000,000)
Treasury Stock, Value, Acquired, Cost Method		(133)					(133)	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period											0
Stock Issued During Period, Value, Stock Options Exercised		(3)			(13)		10	[1]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures											0
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		8			6	(1)	3	[1]
Adjustments to Additional Paid in Capital, Share-based Compensation, Restricted Stock Unit or Restricted Stock Award, Requisite Service Period Recognition		14					14	[1]
Stock Issued During Period, Value, Employee Benefit Plan		3			0		3	[1]				(39)	(23)	(16)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, end of period at Jun. 30, 2014		$ 22,131	$ 725	$ 550	$ 9,085	$ 12,560	$ (730)		$ (59)	[2]
Common Stock, Shares, Outstanding, end of period at Jun. 30, 2014		532,800,000		533,000,000

[1] At June 30, 2014, includes ($802) million for treasury stock, ($35) million for compensation element of restricted stock, and $107 million for noncontrolling interest. At June 30, 2013, includes ($605) million for treasury stock, ($68) million for compensation element of restricted stock, and $115 million for noncontrolling interest.

[2] At June 30, 2014, includes $206 million in unrealized net gains on AFS securities, $193 million in unrealized net gains on derivative financial instruments, and ($458) million related to employee benefit plans. At June 30, 2013, includes $65 million in unrealized net gains on AFS securities, $369 million in unrealized net gains on derivative financial instruments, and ($717) million related to employee benefit plans.

[3] For the six months ended June 30, 2014, dividends were $2,022 per share for both Perpetual Preferred Stock Series A and B and $2,938 per share for Perpetual Preferred Stock Series E.For the six months ended June 30, 2013, dividends were $2,022 per share for both Perpetual Preferred Stock Series A and B and $2,856 per share for Perpetual Preferred Stock Series E.