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Inventories, Net
9 Months Ended
Sep. 30, 2018
Inventory Disclosure [Abstract]  
Inventories, Net
Inventories, Net
 
Inventories, net, consist of the following (amounts in millions):
 
 
At September 30, 2018
 
At December 31, 2017
Finished goods
$
161

 
$
45

Purchased parts and components
13

 
1

Inventories, net
$
174

 
$
46


 
At September 30, 2018 and December 31, 2017, inventory reserves were $23 million and $36 million, respectively.