Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2017

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

(In millions)	March 31, 2017		December 31, 2016
Original cost	$	84,140	$	85,875
Less accumulated depreciation and amortization		(35,124)		(35,356)
Property, plant and equipment – net	$	49,016	$	50,518