Commitments - Extended Warranty Liability (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Movement in deferred income
Amortization of deferred revenue	$ (4,300)	$ (9,000)
Deferred income (current)	11,917	11,917		$ 12,032
Deferred income (noncurrent)	3,085	3,085		$ 3,499
Extended Warranty
Movement in deferred income
Beginning Balance		272	$ 350
Revenue deferred for new extended warranty contracts		55	103
Amortization of deferred revenue		(122)	(148)
Other		(4)	(21)
Ending Balance	201	201	284
Deferred income (current)	119	119	139
Deferred income (noncurrent)	$ 82	$ 82	$ 145