Consolidated Statement of Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Accumulated Deficit	AOCI Attributable to Parent [Member]	Common Stock Held in Treasury	Total Stockholder's Equity	Noncontrolling Interests
Balance (in shares) at Dec. 31, 2020		1,590.0				132.0
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]
Exercised and issued stock-based awards (in shares)	11.0
Exercised and issued stock-based awards	$ 184	$ 1	183				184
Stock-based compensation, including the tender of shares	20		43			$ (19)	24	(4)
Dividends	(315)		(222)				(222)	(93)
Net loss attributable to common stockholders	1,801			1,801			1,801
Net income (loss) attributable to noncontrolling interests	483							483
Other comprehensive income	6				7		7	(1)
Balance (in shares) at Jun. 30, 2021		1,601.0				133.0
Balance at Jun. 30, 2021	20,935	$ 160	26,084	(9,880)	(576)	$ (3,777)	12,011	8,924
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation, including the tender of shares (in shares)						1.0
Contributions from noncontrolling interests	88		43				43	45
Balance (in shares) at Mar. 31, 2021		1,597.0				133.0
Balance at Mar. 31, 2021	$ 19,573	$ 160	26,080	(10,963)	(580)	$ (3,777)	10,920	8,653
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards (in shares)	4.0
Exercised and issued stock-based awards	$ 78		78				78
Stock-based compensation, including the tender of shares	13		14				14	(1)
Dividends	(111)		(111)				(111)
Net loss attributable to common stockholders	1,083			1,083			1,083
Net income (loss) attributable to noncontrolling interests	248							248
Other comprehensive income	4				4		4
Balance (in shares) at Jun. 30, 2021		1,601.0				133.0
Balance at Jun. 30, 2021	20,935	$ 160	26,084	(9,880)	(576)	$ (3,777)	12,011	8,924
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions from noncontrolling interests	47		23				23	24
Balance (in shares) at Dec. 31, 2021		1,603.0				146.0
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]
Exercised and issued stock-based awards (in shares)	9.0
Exercised and issued stock-based awards	$ 113	$ 1	112				113
Stock-based compensation, including the tender of shares	$ (10)		63			$ (62)	1	(11)
Treasury stock purchases (in shares)	29.4					29.0
Treasury stock purchases	$ (1,185)					$ (1,185)	(1,185)
Dividends	(928)		(435)				(435)	(493)
Net loss attributable to common stockholders	2,367			2,367			2,367
Net income (loss) attributable to noncontrolling interests	575							575
Other comprehensive income	2				2		2	0
Balance (in shares) at Jun. 30, 2022		1,612.0				177.0
Balance at Jun. 30, 2022	24,047	$ 161	25,661	(5,008)	(386)	$ (5,539)	14,889	9,158
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation, including the tender of shares (in shares)						2.0
Contributions from noncontrolling interests	94		46				46	48
Balance (in shares) at Mar. 31, 2022		1,612.0				160.0
Balance at Mar. 31, 2022	24,042	$ 161	25,835	(5,848)	(387)	$ (4,895)	14,866	9,176
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercised and issued stock-based awards	5		5				5
Stock-based compensation, including the tender of shares	$ 14		15				15	(1)
Treasury stock purchases (in shares)	17.1					17.0
Treasury stock purchases	$ (644)					$ (644)	(644)
Dividends	(456)		(217)				(217)	(239)
Net loss attributable to common stockholders	840			840			840
Net income (loss) attributable to noncontrolling interests	198							198
Other comprehensive income	1				1		1
Balance (in shares) at Jun. 30, 2022		1,612.0				177.0
Balance at Jun. 30, 2022	24,047	$ 161	25,661	$ (5,008)	$ (386)	$ (5,539)	14,889	9,158
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions from noncontrolling interests	$ 47		$ 23				$ 23	$ 24