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Inventories (Tables)
6 Months Ended
Jun. 30, 2013
Inventories  
Major classes of inventory

 

 

 

June 30,

 

December 31,

 

June 30,

 

 

 

2013

 

2012

 

2012

 

Finished goods

 

$

1,006

 

$

957

 

$

1,054

 

Raw materials

 

125

 

137

 

124

 

Operating supplies

 

44

 

45

 

45

 

 

 

$

1,175

 

$

1,139

 

$

1,223