Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (USD $) Share data in Thousands, unless otherwise specified	Total		Common Stocks	Preferred Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock, at Cost	Accumulated Other Comprehensive Loss, net of tax
Balance at beginning of period at Dec. 31, 2011 (Scenario, Previously Reported [Member])						$ 11,001,000,000
Balance at beginning of period at Dec. 31, 2011					10,391,000,000		(1,718,000,000)	1,251,000,000
Common Shares Outstanding, at beginning of period (in thousands) at Dec. 31, 2011			442,539
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase of warrants					(300,000,000)
Issuance of shares under incentive and stock compensation plans					58,000,000
Tax expense on employee stock options and awards					(2,000,000)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	96,000,000					96,000,000
Dividends on preferred stock						(10,000,000)
Dividends declared on common stock						(45,000,000)
Treasury stock acquired							(42,000,000)
Issuance of shares under incentive and stock compensation plans from treasury stock							79,000,000
Return of shares under incentive and stock compensation plans and other to treasury stock							(7,000,000)
Total other comprehensive income	77,000,000							77,000,000
Preferred Shares Outstanding (in thousands)				575
Treasury stock acquired			(2,550)
Issuance of shares under incentive and stock compensation plans			1,202
Return of shares under incentive and stock compensation plans and other to treasury stock			(326)
Balance at end of period at Mar. 31, 2012	21,274,000,000		5,000,000	556,000,000	10,031,000,000	11,042,000,000	(1,688,000,000)	1,328,000,000
Common Shares Outstanding, at end of period (in thousands) at Mar. 31, 2012			440,865
Balance at beginning of period at Dec. 31, 2012 (Scenario, Previously Reported [Member])						10,745,000,000
Balance at beginning of period at Dec. 31, 2012	22,447,000,000				10,038,000,000		(1,740,000,000)	2,843,000,000
Common Shares Outstanding, at beginning of period (in thousands) at Dec. 31, 2012			436,306
Document Period End Date	Mar. 31, 2013
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Repurchase of warrants	3,000,000				(3,000,000)
Issuance of shares under incentive and stock compensation plans					42,000,000
Tax expense on employee stock options and awards					0
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(241,000,000)					(241,000,000)
Dividends on preferred stock						(10,000,000)
Dividends declared on common stock						(45,000,000)
Treasury stock acquired							(45,000,000)
Issuance of shares under incentive and stock compensation plans from treasury stock							60,000,000
Return of shares under incentive and stock compensation plans and other to treasury stock							(7,000,000)
Total other comprehensive income	(1,194,000,000)	[1]						(1,194,000,000)
Preferred Shares Outstanding (in thousands)				575
Treasury stock acquired			(1,765)
Issuance of shares under incentive and stock compensation plans			1,079
Return of shares under incentive and stock compensation plans and other to treasury stock			(284)
Balance at end of period at Mar. 31, 2013	20,920,000,000		5,000,000	556,000,000	9,993,000,000	10,449,000,000	(1,732,000,000)	1,649,000,000
Common Shares Outstanding, at end of period (in thousands) at Mar. 31, 2013			435,336
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired							$ 0
Treasury stock acquired			751
Balance at end of period at Apr. 25, 2013

[1] [1] All amounts are net of tax and DAC.