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INVENTORIES (Tables)
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories Inventories as of March 31, 2020 and December 31, 2019 consisted of the following:
 
March 31,
 
December 31,
 
2020
 
2019
 
(in millions)
Materials and supplies(a)
$
58

 
$
64

Finished goods
2

 
3

    Total
$
60

 
$
67

(a)
Based on our assessment of the utility of our inventory at March 31, 2020, we recorded a $7 million write down to our materials and supplies, which is included in asset impairments on our condensed consolidated statements of operations.