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Property, Plant and Equipment
9 Months Ended
Sep. 30, 2014
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
(In millions)September 30, 2014December 31, 2013
Original cost$ 112,580 $ 116,470
Less accumulated depreciation and amortization (47,120) (47,643)
Property, plant and equipment – net$ 65,460 $ 68,827

Consolidated depreciation and amortization was $2,494 million and $2,577 million in the three months ended September 30, 2014 and 2013, respectively, and $6,995 million and $7,152 million in the nine months ended September 30, 2014 and 2013, respectively.