CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Millions	Total	Preferred Stock [Member]	Common stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance as of beginning-of-year at Dec. 31, 2008		$ 0	$ 7,035	$ 3,745	$ (2,803)
Issuance (Redemption) of Series B preferred stock		794
Accretion of discount on Series B preferred stock		12		(12)
Issuance of common stock			652
Issuance (repurchase and cancellation) of common stock warrants			156
Stock compensation/issued for benefit plans			(8)
Deferred compensation payable in stock			5
Effect of amendment to deferred compensation plans			0
Retirement of common stock/cancellation of shares			0
Cumulative effect from adoption of new accounting standards	31			102	(102)
Comprehensive income (loss)				2,158
Less other comprehensive income (loss), net of tax				2,643
Other comprehensive income (loss), net of tax					2,643
Net income (loss)	(485)			(485)
Retirement of common stock				0
Dividends declared: Common (2011 - $0.230; 2010 - $0.080; 2009 - $0.040)				(11)
Dividends on preferred stock				(23)
Balance as of end-of-year at Dec. 31, 2009	(262)	806	7,840	3,316	(262)
Issuance (Redemption) of Series B preferred stock		(950)
Accretion of discount on Series B preferred stock		144		(144)
Issuance of common stock			368
Issuance (repurchase and cancellation) of common stock warrants			(48)
Stock compensation/issued for benefit plans			18
Deferred compensation payable in stock			0
Effect of amendment to deferred compensation plans			(29)
Retirement of common stock/cancellation of shares			(25)
Cumulative effect from adoption of new accounting standards	0			(169)	181
Comprehensive income (loss)				1,809
Less other comprehensive income (loss), net of tax				829
Other comprehensive income (loss), net of tax					829
Net income (loss)	980			980
Retirement of common stock				0
Dividends declared: Common (2011 - $0.230; 2010 - $0.080; 2009 - $0.040)				(26)
Dividends on preferred stock				(23)
Balance as of end-of-year at Dec. 31, 2010	12,806	0	8,124	3,934	748
Issuance (Redemption) of Series B preferred stock		0
Accretion of discount on Series B preferred stock		0		0
Issuance of common stock			0
Issuance (repurchase and cancellation) of common stock warrants			0
Stock compensation/issued for benefit plans			17
Deferred compensation payable in stock			0
Effect of amendment to deferred compensation plans			(6)
Retirement of common stock/cancellation of shares			(545)
Cumulative effect from adoption of new accounting standards	0			0	0
Comprehensive income (loss)				1,994
Less other comprehensive income (loss), net of tax				1,700
Other comprehensive income (loss), net of tax					1,700
Net income (loss)	294			294
Retirement of common stock				(31)
Dividends declared: Common (2011 - $0.230; 2010 - $0.080; 2009 - $0.040)				(71)
Dividends on preferred stock				0
Balance as of end-of-year at Dec. 31, 2011	$ 14,164	$ 0	$ 7,590	$ 4,126	$ 2,448