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Liabilities, Commitments and Contingencies - Schedule of Product Warranty Activity (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Dec. 31, 2022
Product Warranties [Roll Forward]        
Beginning balance $ 2,448 $ 2,275 $ 2,275 $ 1,900
Additions for current year deliveries 42 92 164 202
Reductions for payments made (227) (179) (320) (403)
Changes in estimates (8) 338 329 576
Ending balance $ 2,255 $ 2,526 $ 2,448 $ 2,275