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Inventories - Summary of inventories (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Inventories [Abstract]    
Raw materials and purchased components $ 971 $ 1,050
Consumable stores 1,560 1,520
Work in progress 1,931 2,467
Finished goods and goods for resale 1,620 1,836
Total inventories 6,082 6,873
Comprising:    
Expected to be used within one year 5,860 6,659
Expected to be used after more than one year $ 222 $ 214