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Inventories (Tables)
 12 Months Ended
Dec. 31, 2011
Inventory, Net [Abstract]  
Schedule of Inventories
December 31,
2011
2010
Finished products
$
4,541

$
3,733

Semifinished products
2,293

2,022

Raw materials, stores and supplies
1,262

855

 
8,096

6,610

Adjustment of inventories to a LIFO basis
(901
)
(643
)
         
$
7,195

$
5,967