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Inventories - Inventories (Detail) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 1,226 $ 1,201
Work-in-process 340 339
Finished goods 470 425
Tooling and engineering 1,408 1,339
Inventory, net, total $ 3,444 $ 3,304