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Guarantees and Product Warranty - Summary Of Product Warranty (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Change in product warranty liability balances    
Warranty liability, beginning of period $ 1,700 $ 1,894
Reduction in liability (payments) (166) (199)
Increase in liability (new warranties) 103 133
Warranty liability, end of period $ 1,637 $ 1,828