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Inventories - Summary of Inventories (Detail) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Inventories [Line Items]    
Finished products $ 2,281 $ 2,504
Raw and packaging materials 1,282 1,183
Products in process 618 583
Materials in transit and payments on account 179 151
Total $ 4,361 $ 4,422