Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Common Stock	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive (Loss) Income [Member]	Treasury Shares [Member]	Total
Balance, shares at Dec. 31, 2018	147,000,000
Balance, value at Dec. 31, 2018	$ 2	$ 2,309	$ 156	$ 5	$ (267)	$ 2,204
Treasury Stock, Shares at Dec. 31, 2018					(12,000,000)
Net income			70			70
Other comprehensive loss, net of tax				(2)		(2)
Total Comprehensive (Loss) Income			70	(2)		68
Exercise of stock options		5				5
Stock-based employee compensation		4				4
Repurchase of common stock					$ (2)	(2)
Balance, shares at Mar. 31, 2019	148,000,000
Balance at Mar. 31, 2019	$ 2	2,318	226	3	$ (269)	2,280
Treasury Stock, Shares at Mar. 31, 2019					(12,000,000)
Balance, shares at Dec. 31, 2019	148,000,000
Balance, value at Dec. 31, 2019	$ 2	2,334	291	9	$ (313)	$ 2,322
Treasury Stock, Shares at Dec. 31, 2019					(12,000,000)	(12,464,905)
Net income			14			$ 14
Other comprehensive loss, net of tax				(50)		(50)
Total Comprehensive (Loss) Income			14	(50)		(36)
Exercise of stock options		2				2
Stock-based employee compensation		5				5
Repurchase of common stock, shares					(4,000,000)
Repurchase of common stock					$ (103)	(103)
Balance, shares at Mar. 31, 2020	148,000,000
Balance at Mar. 31, 2020	$ 2	$ 2,341	$ 305	$ (41)	$ (417)	$ 2,190
Treasury Stock, Shares at Mar. 31, 2020					(16,000,000)	(16,212,226)