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Inventories (Tables)
 9 Months Ended
Sep. 30, 2016
Inventories  
Major classes of inventory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

September 30,

 

December 31,

 

September 30,

 

 

 

    

2016

    

2015

    

2015

    

 

Finished goods

 

$
892

 

$
858

 

$
873

 

 

Raw materials

 

 
127

 

 
113

 

 
114

 

 

Operating supplies

 

 
38

 

 
36

 

 
36

 

 

 

 

$
1,057

 

$
1,007

 

$
1,023