CONSOLIDATED STATEMENTS OF EQUITY - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Accumulated Deficit	Accumulated Other Comprehensive Loss	Common Stock Held in Treasury	Total Stockholders’ Equity	Noncontrolling Interests
Balance (in shares) at Dec. 31, 2018		1,579				130
Balance at Dec. 31, 2018	$ 17,892	$ 158	$ 26,013	$ (12,041)	$ (605)	$ (3,727)	$ 9,798	$ 8,094
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards (in shares)		3
Exercised and issued stock-based awards	1		1				1
Stock-based compensation, including tax benefit and the tender of shares	44		50			$ (7)	43	1
Stock-based compensation, including tax benefit and the tender of shares (in shares)						1
Dividends	(364)		(291)				(291)	(73)
Changes in noncontrolling interests	(12)		(1)				(1)	(11)
Adjustment for deferred taxes	(22)		(22)				(22)
Net loss attributable to common stockholders	(239)			(239)			(239)
Net income attributable to noncontrolling interests	50							50
Other comprehensive (loss) income	(68)				(71)		(71)	3
Balance (in shares) at Dec. 31, 2019		1,582				131
Balance at Dec. 31, 2019	17,448	$ 158	25,830	(12,280)	(676)	$ (3,734)	9,298	8,150
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from (Payments to) Noncontrolling Interests	166		80				80	86
Exercised and issued stock-based awards (in shares)		8
Exercised and issued stock-based awards	58	$ 1	57				58
Stock-based compensation, including tax benefit and the tender of shares	50		74			$ (24)	50
Stock-based compensation, including tax benefit and the tender of shares (in shares)						1
Changes in noncontrolling interests	1							1
Net loss attributable to common stockholders	599			599			599
Net income attributable to noncontrolling interests	266							266
Other comprehensive (loss) income	90				93		93	(3)
Balance (in shares) at Dec. 31, 2020		1,590				132
Balance at Dec. 31, 2020	18,668	$ 159	26,037	(11,681)	(583)	$ (3,758)	10,174	8,494
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from (Payments to) Noncontrolling Interests	156		76				76	80
Exercised and issued stock-based awards (in shares)		13
Exercised and issued stock-based awards	226	$ 1	225				226
Stock-based compensation, including tax benefit and the tender of shares	24		75			$ (46)	29	(5)
Stock-based compensation, including tax benefit and the tender of shares (in shares)						1
Treasury stock purchases	(488)					$ (488)	(488)
Treasury stock purchases (in shares)						13
Dividends	(1,154)		(551)				(551)	(603)
Net loss attributable to common stockholders	4,306			4,306			4,306
Net income attributable to noncontrolling interests	1,059							1,059
Other comprehensive (loss) income	196				195		195	1
Balance (in shares) at Dec. 31, 2021		1,603				146
Balance at Dec. 31, 2021	23,019	$ 160	25,875	$ (7,375)	$ (388)	$ (4,292)	13,980	9,039
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from (Payments to) Noncontrolling Interests	$ 182		$ 89				$ 89	$ 93