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Inventories
 3 Months Ended
Mar. 31, 2017
Inventories  
Inventories

2.  Inventories

Major classes of inventory at March 31, 2017, December 31, 2016 and March 31, 2016 are as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

March 31,

 

December 31,

 

March 31,

 

 

 

    

2017

    

2016

    

2016

    

 

Finished goods

 

$

889

 

$

827

 

$

954

 

 

Raw materials

 

 

124

 

 

118

 

 

116

 

 

Operating supplies

 

 

38

 

 

38

 

 

37

 

 

 

 

$

1,051

 

$

983

 

$

1,107