CONDENSED CONSOLIDATED STATEMENT OF SHAREHOLDERS EQUITY Statement - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, shares outstanding (shares)		123.000
Stockholders' Equity Attributable to Parent at Dec. 31, 2019	$ 4,331	$ 1	$ 305	$ (643)	$ (465)	$ 5,133
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(232)					(232)
Other Comprehensive Income (Loss), Net of Tax	(17)				(17)
Stock repurchased during period (shares)		(0.538)
Stock Repurchased During Period, Value	(31)			(31)
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	9		9
Dividends, Cash	$ (45)					(45)
Cash dividend declared per share (usd per share)	$ 0.375
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	$ 0
Stockholders' Equity Attributable to Parent at Mar. 31, 2020	$ 4,015	$ 1	314	(674)	(482)	4,856
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		0.123
Common stock, shares outstanding (shares)		122.585
Common stock, shares outstanding (shares)	124,217,590	124.217
Stockholders' Equity Attributable to Parent at Dec. 31, 2020	$ 2,988	$ 1	391	(674)	(494)	3,764
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss)	(131)					(131)
Other Comprehensive Income (Loss), Net of Tax	0				0
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition	12		12
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures	(2)		(2)
Stockholders' Equity Attributable to Parent at Mar. 31, 2021	2,875	$ 1	409	$ (674)	$ (494)	$ 3,633
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Adjustments to Additional Paid in Capital, Warrant Issued	$ 8		$ 8
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures		0.225
Common stock, shares outstanding (shares)	124,442,101	124.442