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Inventories (Tables)
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of components of inventories
Inventories consisted of the following:
(in millions)March 31, 2020December 31, 2019
Raw materials$61  $112  
In-process inventories10  18  
Finished goods77  177  
Parts, supplies and other63  66  
Total inventories$211  $373