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)	7.0	1.0
Exercised and issued stock-based awards	$ 106		105				106
Stock Issued During Period, Shares, Issued for Services						1.0
Stock-based compensation, including the tender of shares	7		29			$ (19)	10	(3)
Dividends	(204)		(111)				(111)	(93)
Net loss attributable to common stockholders	718			718			718
Net income attributable to noncontrolling interests	235							235
Other comprehensive income	2				3		3	(1)
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]
Contributions from noncontrolling interests	41		20				20	21
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	1.0
Exercised and issued stock-based awards	$ 108		107				108
Stock Issued During Period, Shares, Issued for Services						2.0
Stock-based compensation, including the tender of shares	$ (24)		48			$ (62)	(14)	(10)
Treasury stock purchases (in shares)	12.3					12.0
Treasury stock purchases	$ (541)					$ (541)	(541)
Dividends	(472)		(218)				(218)	(254)
Net loss attributable to common stockholders	1,527			1,527			1,527
Net income attributable to noncontrolling interests	377							377
Other comprehensive income	1				1		1
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]
Contributions from noncontrolling interests	$ 47		$ 23				$ 23	$ 24