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Inventories
 9 Months Ended
Sep. 30, 2016
Inventories  
Inventories

2.  Inventories

Major classes of inventory at September 30, 2016, December 31, 2015 and September 30, 2015 are as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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