Consolidated Statement of Stockholders' Equity (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Common Stock, shares	136,682,631	136,530,907	136,400,000
Common Stock Value	$ 1	$ 1	$ 1
Treasury Stock, Shares	(460,914)	(1,216,591)	(1,700,000)
Treasury Stock	(13)	(36)	(50)
Additional Paid in Capital	1,539	1,522	1,495
Retained Earnings (Accumulated Deficit)	1,427	1,300	2,484
Accumulated Other Comprehensive Income (Loss), Net of Tax	2	(7)	(10)
Issuances of common stock, shares	200,000	100,000	500,000
Issuances of common stock, value	1	2	13
Stock-based compensation	45	46	37
Treasury stock, net, shares acquired			0
Stock Issued During Period, Shares, Treasury Stock Reissued	700,000	500,000
Treasury stock, net value acquired			(14)
Stock Issued During Period, Value, Treasury Stock Reissued	6	7
Net income (loss)	147	(1,184)	539
Other Comprehensive Income (Loss), Net of Tax	9	3	2
Payments for Repurchase of Preferred Stock and Preference Stock	(20)	0	0
Common Stock
Issuances of common stock, value	0	0	0
Treasury Stock
Treasury stock, net value acquired			(9)
Stock Issued During Period, Value, Treasury Stock Reissued	23	14
Additional Paid-in Capital
Issuances of common stock, value	1	2	13
Stock-based compensation	45	46	37
Treasury stock, net value acquired			(5)
Stock Issued During Period, Value, Treasury Stock Reissued	29	21
Retained Earnings
Net income (loss)	147	(1,184)	539
Payments for Repurchase of Preferred Stock and Preference Stock	(20)
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss), Net of Tax	$ 9	$ 3	$ 2