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Segment Information - Schedule of Significant segment expenses (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Segment Reporting Information [Line Items]    
Total direct costs $ (1,734) $ (1,805)
Total production overhead costs (365) (367)
Cost of sales [1] (2,100) (2,172)
Research, development and engineering expenses (gross) (147) (157)
Reimbursements from customer funded engineering projects 52 45
Research, development and engineering expenses, net $ (95) $ (113)
[1] Including a gain on sale of property in China of $6 million in the first quarter of 2025.