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Inventories
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventories
Inventories consist of the following:
 March 31, 
 2023
December 31, 
 2022
 (in millions)
Finished goods$393 $437 
Raw materials, spare parts and supplies37 37 
Total inventories$430 $474