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 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)	293	292				286	6	1
Dividends declared on common stock	(200)	(200)			(200)
Equity compensation, net of tax	19	19	2	(11)	28
Acquisition of noncontrolling interests	(3)							(3)
Other changes attributable to noncontrolling interests	2	1					1	1
Ending balance at Jun. 30, 2021	4,011	3,986	450	(609)	7,906	(2,888)	(873)	25
Beginning balance at Mar. 31, 2021	3,861	3,836	450	(608)	7,993	(3,085)	(914)	25
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	238	235				197	38	3
Dividends declared on common stock	(99)	(99)			(99)
Equity compensation, net of tax	11	11		(1)	12
Acquisition of noncontrolling interests	(3)							(3)
Other changes attributable to noncontrolling interests	3	3					3
Ending balance at Jun. 30, 2021	4,011	$ 3,986	450	(609)	7,906	(2,888)	(873)	$ 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)	364					438	(74)
Dividends declared on common stock	(192)				(192)
Equity compensation, net of tax	10		2	(14)	22
Common stock purchased and retired	(325)		(13)		(312)
Other	(1)				(1)
Ending balance at Jun. 30, 2022	3,947		439	(623)	7,251	(2,164)	(956)
Beginning balance at Mar. 31, 2022	3,980		441	(623)	7,384	(2,368)	(854)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Comprehensive income (loss)	102					204	(102)
Dividends declared on common stock	(95)
Equity compensation, net of tax	10				10
Common stock purchased and retired	(50)		(2)		(48)
Ending balance at Jun. 30, 2022	$ 3,947		$ 439	$ (623)	$ 7,251	$ (2,164)	$ (956)