CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Millions	Total	Stockholders' Equity Attributable to Parent	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning balance at Dec. 31, 2020	$ 3,900	$ 3,874	$ 448	$ (598)	$ 8,078	$ (3,174)	$ (880)	$ 26
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	55	57				89	(32)	(2)
Dividends declared on common stock	(101)	(101)			(101)
Equity compensation, net of tax	8	8	2	(10)	16
Other changes attributable to noncontrolling interests	(1)	(2)					(2)	1
Ending balance at Mar. 31, 2021	3,861	$ 3,836	450	(608)	7,993	(3,085)	(914)	$ 25
Beginning balance at Dec. 31, 2021	4,091		450	(609)	7,734	(2,602)	(882)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	262					234	28
Dividends declared on common stock	(97)				(97)
Equity compensation, net of tax	0		2	(14)	12
Common stock purchased and retired	(275)		(11)	0	(264)
Other	(1)				(1)
Ending balance at Mar. 31, 2022	$ 3,980		$ 441	$ (623)	$ 7,384	$ (2,368)	$ (854)