Consolidated Statements of Equity - USD ($) $ in Millions	Total	Mandatory convertible preferred stock Mandatory convertible preferred stock	Common stock	Additional paid-in capital	Treasury stock	Retained earnings	Accumulated other comprehensive loss	Non- controlling interests
Beginning balance at Dec. 31, 2021	$ (14,846)		$ 5,061	$ 9,052	$ (51,861)	$ 34,408	$ (11,659)	$ 153
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(5,053)					(4,935)		(118)
Other comprehensive income (loss), net of tax	2,109						2,109
Share-based compensation	725			725
Treasury shares issued for stock options exercised, net	50			(31)	81
Treasury shares issued for other share-based plans, net	(48)			(94)	46
Treasury shares issued for 401(k) contribution	1,215			295	920
Ending balance at Dec. 31, 2022	(15,848)		5,061	9,947	(50,814)	29,473	(9,550)	35
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(2,242)					(2,222)		(20)
Other comprehensive income (loss), net of tax	(755)						(755)
Share-based compensation	690			690
Treasury shares issued for stock options exercised, net	45			(28)	73
Treasury shares issued for other share-based plans, net	(356)			(660)	304
Treasury shares issued for 401(k) contribution	1,515			627	888
Subsidiary shares purchased from noncontrolling interests	(267)			(267)
Other changes in noncontrolling interests	(10)							(10)
Ending balance at Dec. 31, 2023	(17,228)		5,061	10,309	(49,549)	27,251	(10,305)	5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(11,829)					(11,817)		(12)
Other comprehensive income (loss), net of tax	(610)						(610)
Share-based compensation	407			407
Mandatory convertible preferred stock issued, net of issuance costs	5,651	6		5,645
Common stock issued, net of issuance costs	18,181			2,253	15,928
Treasury shares issued for other share-based plans, net	(16)			(145)	129
Treasury shares issued for 401(k) contribution	1,601			495	1,106
Cash dividends declared on Mandatory convertible preferred stock	(72)					(72)
Other changes in noncontrolling interests	1							1
Ending balance at Dec. 31, 2024	$ (3,914)	$ 6	$ 5,061	$ 18,964	$ (32,386)	$ 15,362	$ (10,915)	$ (6)