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Inventories, Net (Notes)
9 Months Ended
Sep. 30, 2018
Inventory, Net [Abstract]  
Inventories, Net
Inventories, Net.
Inventories, net consists of the following:
  
September 30, 2018
 
December 31, 2017
 
(in millions)
Raw materials
$
307

 
$
252

Work in process
123

 
127

Finished goods
1,531

 
1,426

 
$
1,961

 
$
1,805