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Commitments & Contingencies - Extended Warranty Liability (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Movement in deferred income    
Amortization of deferred revenue $ (10,200)  
Current portion 12,032 $ 12,518
Noncurrent portion 3,499 3,577
Extended Warranty    
Movement in deferred income    
Beginning Balance 350 425
Revenue deferred for new extended warranty contracts 100 133
Amortization of deferred revenue (163) (198)
Other (15) (10)
Ending Balance 272 350
Current portion 137 163
Noncurrent portion $ 135 $ 186