Segment and Revenue Information - Schedule of Unallocated Items and Eliminations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Share-based plans	$ (407)	$ (690)	$ (725)
Deferred compensation	(114)	(188)	117
Research and development expense, net	(3,812)	(3,377)	(2,852)
Other
Segment Reporting Information [Line Items]
Share-based plans	171	62	(114)
Deferred compensation	(114)	(188)	117
Amortization of previously capitalized interest	(93)	(95)	(95)
Research and development expense, net	(377)	(315)	(278)
Eliminations and other unallocated items	(1,634)	(1,223)	(1,134)
Unallocated items, eliminations and other	$ (2,047)	$ (1,759)	$ (1,504)