CONSOLIDATED AND COMBINED STATEMENTS OF EQUITY - USD ($) $ in Millions	Parent's Net Investment and Advances	Additional paid-in capital	Retained earnings	Accumulated other comprehensive loss	Noncontrolling interests in subsidiaries	Total
Balance at the beginning of the period at Dec. 31, 2014	$ 1,714			$ (319)	$ 20	$ 1,415
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(359)				7	(352)
Net changes in other comprehensive income				(82)		(82)
Dividends paid to noncontrolling interests					(8)	(8)
Net changes in parent's net investment and advances	(243)				(2)	(245)
Balance at the end of the period at Dec. 31, 2015	1,112			(401)	17	728
Increase (Decrease) in Stockholders' Equity
Net income (loss)	(87)				10	(77)
Net changes in other comprehensive income				(22)		(22)
Dividends paid to noncontrolling interests					(14)	(14)
Net changes in parent's net investment and advances	(437)				(1)	(438)
Balance at the end of the period at Dec. 31, 2016	588			(423)	12	177
Increase (Decrease) in Stockholders' Equity
Net income (loss)	67		$ 67		10	144
Net changes in other comprehensive income				140		140
Dividends paid to noncontrolling interests					(12)	(12)
Net changes in parent's net investment and advances	653					653
Conversion of Parent's net investment and advances to paid-in capital	$ (1,308)	$ 1,308
Activity related to stock plans		3				3
Balance at the end of the period at Dec. 31, 2017		$ 1,311	$ 67	$ (283)	$ 10	$ 1,105