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Inventories (Tables)
 12 Months Ended
Dec. 31, 2014
Inventory, Net [Abstract]  
Schedule of Inventories
December 31,
2014
2013
Finished products
$
4,628

$
4,645

Semifinished products
2,451

2,576

Raw materials, stores and supplies
1,255

1,360

 
8,334

8,581

Adjustment of inventories to a LIFO basis
(493
)
(539
)
         
$
7,841

$
8,042