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Inventories
6 Months Ended
Jun. 30, 2019
Inventory Disclosure [Abstract]  
Inventories
Note 3. Inventories

Inventories consisted of the following:
 
As of June 30,
2019
 
As of December 31,
2018
 
(in millions)
Raw materials
$
722

 
$
726

Finished product
2,129

 
1,987

 
2,851

 
2,713

Inventory reserves
(120
)
 
(121
)
Inventories, net
$
2,731

 
$
2,592