Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2014

Property and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

Property and equipment, net (in millions), and the corresponding ranges of estimated useful lives were as follows:

							2014
	December 31, 2014			December 31, 2013			Range of Estimated Useful Life
Land for transportation purposes	$	5,983		$	5,973		—
Track structure	19,562			18,207			15 – 50 years
Other roadway	23,026			21,891			5 – 100 years
Locomotives	6,621			5,241			5 – 33 years
Freight cars and other equipment	2,350			2,053			8 – 40 years
Computer hardware, software and other	522			257			5 – 9 years
Construction in progress	1,292			973			—
Total cost	59,356			54,595
Less accumulated depreciation and amortization	(3,550		)	(2,232		)
Property and equipment, net	$	55,806		$	52,363