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Inventories, Net (Tables)
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of inventories
Inventories, net, consist of the following (amounts in millions):
 
 
At June 30, 2019
 
At December 31, 2018
Finished goods
$
45

 
$
40

Purchased parts and components
1

 
3

Inventories, net
$
46

 
$
43