Commitments - Extended Warranty Liability (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Movement in deferred income
Amortization of deferred revenue	$ (7,400)
Deferred income (current)	13,643		$ 13,451
Deferred income (noncurrent)	3,489		$ 3,533
Extended Warranty
Movement in deferred income
Beginning Balance	184	$ 272
Revenue deferred for new extended warranty contracts	18	20
Amortization of deferred revenue	(62)	(73)
Other	(4)	(1)
Ending Balance	135	218
Deferred income (current)	82	119
Deferred income (noncurrent)	$ 52	$ 99