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Properties, Plants, And Equipment, Net (Tables)
12 Months Ended
Dec. 31, 2011
Properties, Plants, And Equipment, Net [Abstract]  
Schedule Of Properties, Plants, And Equipment, Net
December 31,    2011      2010  

Land and land rights, including mines

   $ 667       $ 631   

Structures

     12,111         11,657   

Machinery and equipment

     23,333         23,189   
     36,111         35,477   

Less: accumulated depreciation, depletion, and amortization

     18,404         17,487   
     17,707         17,990   

Construction work-in-progress

     1,709         2,193   
     $ 19,416       $ 20,183