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Inventories, net - Inventories (Detail) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 478 $ 577
Work in process 334 364
Finished goods and purchased products 1,860 2,099
Inventory, Gross 2,672 3,040
Less: Inventory reserve (743) (843)
Total $ 1,929 $ 2,197