XML 36 R32.htm IDEA: XBRL DOCUMENT v2.3.0.15
Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2011
Commitments and Contingencies [Abstract] 
Reserves by type of site
                 
    September 30, 2011  
Sites   Expected     High  
    (In millions)  
Operating
  $ 8     $ 12  
Non-operating.
    164       279  
Superfund
    14       36  
 
           
Total
  $ 186     $ 327