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Inventories (Tables)
 12 Months Ended
Dec. 31, 2012
Inventory, Net [Abstract]  
Schedule of Inventories
December 31,
2012
2011
Finished products
$
4,519

$
4,541

Semifinished products
2,407

2,293

Raw materials, stores and supplies
1,332

1,262

 
8,258

8,096

Adjustment of inventories to a LIFO basis
(836
)
(901
)
         
$
7,422

$
7,195