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Inventories (Tables)
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventories
Inventories consisted of the following (in millions):
March 31, 2023December 31, 2022
Raw materials$903 $828 
Work in process2,978 3,098 
Finished goods1,130 1,004 
Total inventories$5,011 $4,930