Condensed Consolidated Statement of Equity (Deficit) - USD ($) $ in Millions	Total	Common Stock [Member]	Paid-in Capital [Member]	Treasury Stock [Member]	Notes Receivable From Parent [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Parent [Member]	Noncontrolling Interest [Member]
Balance at Dec. 31, 2018	$ (2,914)	$ 1	$ 526	$ (296)	$ 0	$ (18)	$ (3,125)	$ (2,912)	$ (2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(52)	0	0	0	0	0	(52)	(52)	0
Other comprehensive income	0
Balance at Mar. 31, 2019	(2,966)	1	526	(296)	0	(18)	(3,177)	(2,964)	(2)
Balance at Dec. 31, 2019	1,075	0	1,165	0	0	(1)	(89)	1,075	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(59)	0	0	0	0	0	(59)	(59)	0
Other comprehensive income	(57)	0	0	0	0	(57)	0	(57)	0
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	5	0		0	0	0	0	5	0
Due from Officers or Stockholders, Noncurrent	(10)	0	0	0	(10)	0	0	(10)	0
Balance at Mar. 31, 2020	$ 954	$ 0	$ 1,170	$ 0	$ (10)	$ (58)	$ (148)	$ 954	$ 0