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Inventories - Summary of Inventory (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials & field materials $ 1,594 $ 1,573
Work in progress 425 464
Finished goods 1,253 1,317
Inventories $ 3,272 $ 3,354