Consolidated Statement of Equity (Deficit) (Unaudited) - USD ($) $ in Millions	Total	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	AOCI Attributable to Parent [Member]	Treasury Stock [Member]	Series A Redeemable Convertible Preferred Stock [Member]
Equity (deficit) at Dec. 31, 2017	$ 57	$ 631	$ (174)	$ (391)	$ (9)
Equity (deficit) at Dec. 31, 2017						$ 164
Net loss	(25)		(25)
Currency translation adjustments	13			13
Series A preferred stock cash dividends	(3)	(3)
Series A preferred stock deemed dividends	(2)	(2)
Redeemable series A preferred stock deemed dividends						2
Stock-based compensation	2	2
Equity (deficit) at Mar. 31, 2018	32	628	(209)	(378)	(9)
Equity (deficit) at Mar. 31, 2018						166
Prior period adjustment due to adoption | ASU 2014-09 [Member]	(10)		(10)
Equity (deficit) at Dec. 31, 2018	(3)	617	(200)	(411)	(9)
Equity (deficit) at Dec. 31, 2018						173
Net loss	(18)		(18)
Currency translation adjustments	3			3
Pension and other postretirement liability adjustments	(1)			(1)
Series A preferred stock cash dividends	(3)	(3)
Series A preferred stock deemed dividends	(2)	(2)
Redeemable series A preferred stock deemed dividends						2
Stock-based compensation	3	3
Equity (deficit) at Mar. 31, 2019	(16)	$ 615	(213)	$ (409)	$ (9)
Equity (deficit) at Mar. 31, 2019						$ 175
Prior period adjustment due to adoption | ASU 2016-02 [Member]	$ 5		$ 5