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Inventories
3 Months Ended
Mar. 31, 2024
Inventory Disclosure [Abstract]  
Inventories Inventories
Inventories consisted of the following:
March 31,
2024
December 31,
2023
(in millions)
Raw materials$137 $153 
Work in progress70 60 
Finished goods309 260 
Spare parts54 51 
Inventories$570 $524