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Inventories, net (Tables)
3 Months Ended
Mar. 31, 2020
Inventory Disclosure [Abstract]  
Schedule of Inventories
Inventories, net, consisted of the following:
 
March 31,
2020
 
December 31,
2019
 
(in millions)
Fuel
$
174

 
$
412

Other
8

 
7

Inventories, net
$
182

 
$
419