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Inventories (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Inventory Disclosure [Abstract]    
Raw materials $ 770 $ 718
Finished product 2,054 2,059
Inventories, gross 2,824 2,777
Inventory reserves (116) (130)
Inventories, net $ 2,708 $ 2,647