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Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2014
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Carrying Value of Recorded AROs by Major Category

The following table details the carrying value of recorded AROs by major category (of which $76 and $85 was classified as a current liability as of December 31, 2014 and 2013, respectively):

 

December 31,

   2014      2013  

Spent pot lining disposal

   $ 170       $ 182   

Closure of bauxite residue areas

     178         179   

Mine reclamation

     167         178   

Demolition*

     114         68   

Landfill closure

     31         18   

Other

     3         4   
  

 

 

    

 

 

 
   $ 663       $ 629   
  

 

 

    

 

 

 

 

* In 2014 and 2013, AROs were recorded as a result of management’s decision to permanently shut down and demolish certain structures (see Note D).
Schedule of Changes in Carrying Value of Recorded AROs

The following table details the changes in the total carrying value of recorded AROs:

 

December 31,

   2014     2013  

Balance at beginning of year

   $ 629      $ 610   

Accretion expense

     25        24   

Payments

     (84     (71

Liabilities incurred

     144        118   

Divestitures*

     (20     —     

Foreign currency translation and other

     (31     (52
  

 

 

   

 

 

 

Balance at end of year

   $ 663      $ 629   
  

 

 

   

 

 

 

 

* In 2014, this amount relates to the sale of an interest in a bauxite mine and alumina refinery in Jamaica and a smelter in the United States (see Note F).