Stockholders' Equity and Loss Per Share Stockholders' Equity and Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2014

Stockholders Equity Noncontrolling Interests and Income (Loss) Per Share [Abstract]

Number of Shares Excluded from Computation of Diluted Loss Per Share

	Years Ended December 31,
(In millions)	2014	2013	2012
Stock options	6	4	6
Restricted stock units	2	2	—
Warrants	—	—	1
	8	6	7