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Inventories
9 Months Ended
Sep. 30, 2019
Inventory Disclosure [Abstract]  
Inventories
Note 3. Inventories

Inventories consisted of the following:
 
As of September 30,
2019
 
As of December 31,
2018
 
(in millions)
Raw materials
$
700

 
$
726

Finished product
2,150

 
1,987

 
2,850

 
2,713

Inventory reserves
(108
)
 
(121
)
Inventories, net
$
2,742

 
$
2,592