CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common Stock Par Value [Member]	Capital in Excess of Par Value [Member]	Retained Earnings/(Accumulated Deficit) [Member]	Accumulated Other Comprehensive Loss ("AOCI") [Member]	Treasury Stock [Member]	Stockholder's Equity [Member]	Noncontrolling Interest ("NCI") [Member]
Beginning Balance at Dec. 31, 2018	$ 823	$ 183	$ 3,539	$ (2,719)	$ (107)	$ (96)	$ 800	$ 23
Net loss	(57)			(56)			(56)	(1)
Other comprehensive loss, net of tax	(58)				(58)		(58)
Common stock issued		2	(2)
Stock-based compensation charges	6		6				6
Accretion and dividends on redeemable preferred stock	(14)			(14)			(14)
Conversion of noncontrolling interest	(24)		2				2	(26)
Purchase of treasury shares	(4)					(4)	(4)
Retirement of common stock		(1)	(3)			4
Other	3		3				3
Ending Balance at Mar. 31, 2019	675	184	3,545	(2,789)	(165)	(96)	679	(4)
Beginning Balance at Dec. 31, 2019	(2,143)	196	3,553	(5,693)	(103)	(96)	(2,143)
Adoption of ASU 2016-13 at Dec. 31, 2019	(7)			(7)			(7)
Beginning Balance at Dec. 31, 2019	(2,150)	196	3,553	(5,700)	(103)	(96)	(2,150)
Net loss	(1,372)			(1,378)			(1,378)	6
Other comprehensive loss, net of tax	(74)				(74)		(74)
Stock-based compensation charges	4		4				4
Accretion and dividends on redeemable preferred stock	(4)			(4)			(4)
Other	1							1
Ending Balance at Mar. 31, 2020	$ (3,595)	$ 196	$ 3,557	$ (7,082)	$ (177)	$ (96)	$ (3,602)	$ 7