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Liabilities, Commitments and Contingencies - Schedule of Product Warranty Activity (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Product Warranties [Roll Forward]    
Beginning balance – January 1 $ 2,275 $ 1,900
Additions for current year deliveries 121 143
Reductions for payments made (258) (305)
Changes in estimates 285 355
Ending balance – September 30 $ 2,423 $ 2,093