Consolidated Statements of Shareholders' Equity (USD $) In Millions	Total	Preferred Stock	Common Stock	Additional Paid in Capital	Retained Earnings	Treasury Stock and Other		Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2010	$ 23,130	$ 4,942	$ 515	$ 8,403	$ 8,542	$ (888)	[1]	$ 1,616	[2]
Beginning Balance (in shares) at Dec. 31, 2010			500
Net income (loss)	180				180
Other Comprehensive Income (Loss), Net of Tax	(191)							(191)	[2]
Change in noncontrolling interest	2					2	[1]
Common stock dividends	(5)				(5)
Preferred dividends	(2)				(2)
U.S. Treasury preferred stock dividends	(60)				(60)
Accretion of discount for preferred stock issued to U.S. Treasury		6			(6)
Repurchase of preferred stock	(4,850)	(4,776)			(74)
Issuance of common stock (in shares)			35
Issuance of common stock	1,016		35	981
Stock compensation expense	3			3
Restricted stock activity (in shares)			2
Restricted stock activity	(15)			(58)		43	[1]
Amortization of restricted stock compensation	9					9	[1]
Issuance of stock for employee benefit plans and other	6			(5)		11	[1]
Ending Balance at Mar. 31, 2011	19,223	172	550	9,324	8,575	(823)	[1]	1,425	[2]
Ending Balance (in shares) at Mar. 31, 2011			537
Beginning Balance at Dec. 31, 2011	20,066	275	550	9,306	8,978	(792)	[1]	1,749	[2]
Beginning Balance (in shares) at Dec. 31, 2011			537
Net income (loss)	250				250
Other Comprehensive Income (Loss), Net of Tax	(75)							(75)	[2]
Change in noncontrolling interest	4					4	[1]
Common stock dividends	(27)				(27)
Preferred dividends	(3)				(3)
Stock compensation expense	4			(6)		10	[1]
Restricted stock activity (in shares)			1
Restricted stock activity	8			(50)		58	[1]
Amortization of restricted stock compensation	7					7	[1]
Issuance of stock for employee benefit plans and other	7			(7)		14	[1]
Ending Balance at Mar. 31, 2012	$ 20,241	$ 275	$ 550	$ 9,243	$ 9,198	$ (699)	[1]	$ 1,674	[2]
Ending Balance (in shares) at Mar. 31, 2012			538

[1] At March 31, 2012 includes ($737) million for treasury stock, ($73) million for compensation element of restricted stock, and $111 million for noncontrolling interest. At March 31, 2011 includes ($881) million for treasury stock, ($73) million for compensation element of restricted stock, and $131 million for noncontrolling interest.

[2] Components of AOCI at March 31, 2012 included $1,913 million in unrealized net gains on AFS securities, $468 million in unrealized net gains on derivative financial instruments, and ($707) million related to employee benefit plans. At March 31, 2011 components included $1,457 million in unrealized net gains on AFS securities, $407 million in unrealized net gains on derivative financial instruments, and ($439) million related to employee benefit plans.