Condensed Consolidated Statement of Equity (Deficit) - 6 months ended Jun. 30, 2016 - 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, 2015	$ (2,477)	$ 1	$ 526	$ (296)	$ (15)	$ (2,692)	$ (2,476)	$ (1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	106	0	0	0	0	106	106	0
Other comprehensive loss	0	0	0	0	0	0	0	0
Balance at Jun. 30, 2016	$ (2,371)	$ 1	$ 526	$ (296)	$ (15)	$ (2,586)	$ (2,370)	$ (1)