Condensed Consolidated Statement of Equity (Deficit) - 6 months ended Jun. 30, 2015 - USD ($) $ in Millions	Total	Common Stock [Member]	Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Parent [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2014	$ (2,350)	$ 1	$ 526	$ (296)	$ 73	$ (2,652)	$ (2,348)	$ (2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(36)	0	0	0	0	(36)	(36)	0
Other comprehensive loss	(49)	0	0	0	(49)	0	(49)	0
Balance at Jun. 30, 2015	$ (2,435)	$ 1	$ 526	$ (296)	$ 24	$ (2,688)	$ (2,433)	$ (2)