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Inventories
 6 Months Ended
Jun. 30, 2015
Inventory Disclosure [Abstract]  
Inventories

F. Inventories

 

     June 30,
2015		      December 31,
2014		  

Finished goods

    $ 714       $ 768   

Work-in-process

      1,112         1,035   

Bauxite and alumina

      569         578   

Purchased raw materials

      572         508   

Operating supplies

      193         193   
  

 

 

     

 

 

  
$ 3,160    $ 3,082   
  

 

 

     

 

 

  

At June 30, 2015 and December 31, 2014, the total amount of inventories valued on a last in, first out (LIFO) basis was $1,565 and $1,514, respectively. If valued on an average-cost basis, total inventories would have been $700 and $767 higher at June 30, 2015 and December 31, 2014, respectively.