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Inventories
12 Months Ended
Dec. 31, 2013
Inventories  
Inventories

4. Inventories

        Major classes of inventory are as follows:

 
  2013   2012  

Finished goods

  $ 958   $ 957  

Raw materials

    113     137  

Operating supplies

    46     45  
           

 

  $ 1,117   $ 1,139