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Inventories (Tables)
9 Months Ended
Sep. 30, 2020
Inventory Disclosure [Abstract]  
Schedule of components of inventories
Inventories consisted of the following:
(in millions)September 30, 2020December 31, 2019
Finished goods$110 $177 
Raw materials73 112 
In-process inventories17 18 
Parts, supplies and other66 66 
Total inventories$266 $373