Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2016

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:

							2016
	December 31, 2016			December 31, 2015			Range of Estimated Useful Life
Land for transportation purposes	$	6,063		$	6,037		—
Track structure	22,287			21,200			15 – 50 years
Other roadway	25,990			24,767			7 – 100 years
Locomotives	8,338			7,794			7 – 35 years
Freight cars and other equipment	2,755			2,629			8 – 40 years
Computer hardware, software and other	982			897			6 – 9 years
Construction in progress	965			1,031			—
Total cost	67,380			64,355
Less accumulated depreciation and amortization	(6,130		)	(4,845		)
Property and equipment, net	$	61,250		$	59,510