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Inventories (Tables)
9 Months Ended
Sep. 30, 2021
Inventory Disclosure [Abstract]  
Schedule of components of inventories
Inventories consisted of the following:
(in millions)September 30, 2021December 31, 2020
Finished goods$185 $133 
Raw materials137 83 
In-process inventories24 16 
Parts, supplies and other76 66 
Total inventories$422 $298