Earnings (Loss) Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Basic EPS:
Net income (loss)	$ (132)	$ (13)	$ (259)	$ 98
Weighted average common shares outstanding (in shares)	17.2	10.2	14.1	10.1
Basic EPS (in dollars per share)	$ (7.66)	$ (1.25)	$ (18.29)	$ 9.68
Diluted EPS:
Dilutive effect of stock awards (in shares)	0	0	0	0
Weighted average diluted shares outstanding (in shares)	17.2	10.2	14.1	10.1
Diluted EPS (in dollars per share)	$ (7.66)	$ (1.25)	$ (18.29)	$ 9.68