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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2021
Inventory Disclosure [Abstract]  
Summary of Inventories
Inventories as of March 31, 2021 and December 31, 2020 consist of the following:
March 31, 2021December 31, 2020
(in millions)
Raw materials$1,750 $1,525 
Work-in-process991 622 
Finished goods4,139 3,875 
Total inventories$6,880 $6,022