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Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2011
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
 At
 June 30, December 31,
(In millions)2011 2010
      
Original cost$ 113,029 $ 110,032
Less accumulated depreciation and amortization  (44,183)   (43,820)
Property, plant and equipment – net$ 68,846 $ 66,212