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Inventories
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consisted of the following:
March 31,
2023
December 31,
2022
(in millions)
Raw materials$201 $215 
Work in progress80 81 
Finished goods355 383 
Spare parts46 43 
Inventories$682 $722