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Liabilities, Commitments and Contingencies - Schedule of Product Warranty Activity (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Product Warranties [Roll Forward]    
Beginning balance – January 1 $ 2,133 $ 2,448
Additions for current year deliveries 136 67
Reductions for payments made (254) (297)
Changes in estimates 384 (27)
Ending balance – September 30 $ 2,399 $ 2,191