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, 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
Equity (deficit) at Dec. 31, 2019	99	604	(79)	(417)	(9)
Equity (deficit) at Dec. 31, 2019						182
Net loss	(111)		(111)
Currency translation adjustments	(12)			(12)
Pension and other postretirement liability adjustments	3			3
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	1	1
Equity (deficit) at Mar. 31, 2020	$ (25)	$ 600	$ (190)	$ (426)	$ (9)
Equity (deficit) at Mar. 31, 2020						$ 184