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Inventories
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Inventories

E. Inventories

 

     March 31,
2014
     December 31,
2013
 

Finished goods

   $ 702       $ 578   

Work-in-process

     1,006         828   

Bauxite and alumina

     597         581   

Purchased raw materials

     528         474   

Operating supplies

     234         244   
  

 

 

    

 

 

 
   $ 3,067       $ 2,705   
  

 

 

    

 

 

 

 

At March 31, 2014 and December 31, 2013, the total amount of inventories valued on a last in, first out (LIFO) basis was 37% and 34%, respectively. If valued on an average-cost basis, total inventories would have been $701 and $691 higher at March 31, 2014 and December 31, 2013, respectively.