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INVENTORIES (Details) - USD ($)
$ in Millions
Mar. 31, 2021
Dec. 31, 2020
Finished goods $ 806 $ 932
Work in process 1,943 2,015
Raw and packaging materials 219 207
Total inventories 2,968 3,154
Inventories 1,953 2,074
Inventories - other assets 1,015 1,080
Inventory purchase price fair value adjustment [Member]    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory $ 695 $ 774