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Inventories, Net
 9 Months Ended
Sep. 30, 2017
Inventory Disclosure [Abstract]  
Inventories, Net
Inventories, Net
 
Inventories, net, consist of the following (amounts in millions):
 
 
At September 30, 2017
 
At December 31, 2016
Finished goods
$
80

 
$
40

Purchased parts and components
14

 
9

Inventories, net
$
94

 
$
49


 
At September 30, 2017 and December 31, 2016, inventory reserves were $21 million and $45 million, respectively.