Consolidated Statements of Stockholders' Equity (Deficit) (USD $) In Millions		Total	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Loss	Treasury Stock
Stockholders' Equity (Deficit) Period Start at Dec. 31, 2011		$ (1,396)	$ 0	$ 13,999	$ (8,398)	$ (6,766)	$ (231)
Shares, Issued Period Start at Dec. 31, 2011			861				16
Net income		1,009			1,009
Other comprehensive income (loss)		(1,811)				(1,811)
Treasury Stock, Value, Acquired, Cost Method	[1]						(3)
Shares of common stock issued and compensation expense associated with equity awards	[1]		5
Shares of common stock issued and compensation expense associated with equity awards	[1]	51	0
Shares of common stock issued and compensation expense associated with equity awards	[1]			54
Shares of common stock issued and compensation expense associated with equity awards							0
Stock options exercised			2
Stock options exercised		16	0
Stock options exercised				16
Stockholders' Equity (Deficit) Period End at Dec. 31, 2012		(2,131)	0	14,069	(7,389)	(8,577)	(234)
Shares, Issued Period End at Dec. 31, 2012			868				16
Net income		10,540			10,540
Dividends declared		(102)			(102)
Other comprehensive income (loss)		3,447				3,447
Treasury Stock, Value, Acquired, Cost Method	[1]						(24)
Shares of common stock issued and compensation expense associated with equity awards	[1]		5
Shares of common stock issued and compensation expense associated with equity awards	[1]	66	0
Shares of common stock issued and compensation expense associated with equity awards	[1]			90
Shares of common stock issued and compensation expense associated with equity awards	[1]						2
Stock options exercised			6
Stock options exercised		73	0
Stock options exercised				73
Stock purchased and retired		(10)
Stock purchased and retired		(250)	0	(250)
Stockholders' Equity (Deficit) Period End at Dec. 31, 2013		11,643	0	13,982	3,049	(5,130)	(258)
Shares, Issued Period End at Dec. 31, 2013			869				18
Net income		659			659
Dividends declared		(252)			(252)
Other comprehensive income (loss)		(2,181)				(2,181)
Treasury Stock, Value, Acquired, Cost Method	[1]						(55)
Shares of common stock issued and compensation expense associated with equity awards	[1]		3
Shares of common stock issued and compensation expense associated with equity awards	[1]	26	0
Shares of common stock issued and compensation expense associated with equity awards	[1]			81
Shares of common stock issued and compensation expense associated with equity awards	[1]						2
Stock options exercised			2
Stock options exercised		18	0
Stock options exercised				18
Stock purchased and retired		(29)
Stock purchased and retired		(1,100)	0	(1,100)
Stockholders' Equity (Deficit) Period End at Dec. 31, 2014		$ 8,813	$ 0	$ 12,981	$ 3,456	$ (7,311)	$ (313)
Shares, Issued Period End at Dec. 31, 2014			845				20

[1] Weighted average price per share