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Inventories (Tables)
9 Months Ended
Sep. 30, 2011
Inventories 
Major classes of inventory

September 30,

 

December 31,

 

September 30,

 

 

 

2011

 

2010

 

2010

 

 

 

 

 

 

 

 

 

Finished goods

 

$

885

 

$

786

 

$

818

 

Raw materials

 

113

 

106

 

111

 

Operating supplies

 

54

 

54

 

57

 

 

 

 

 

 

 

 

 

 

 

$

1,052

 

$

946

 

$

986