Property and Equipment, Net (Tables)

12 Months Ended

Dec. 31, 2021

Property and Equipment [Abstract]

Property and Equipment, net

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

	December 31, 2021		December 31, 2020		Range of Estimated Useful Life
Land for transportation purposes	$	6,431	$	6,305	—
Track structure	27,934		26,657		15 – 55 years
Other roadway a	31,478		30,862		10 – 100 years
Locomotives	8,496		8,440		8 – 37 years
Freight cars and other equipment	3,808		3,746		8 – 43 years
Computer hardware, software and other	1,518		1,337		6 – 15 years
Construction in progress	1,027		916		—
Total cost	80,692		78,263
Less accumulated depreciation and amortization	(14,978)		(13,175)
Property and equipment, net	$	65,714	$	65,088
a  Other roadway includes grading, bridges, signals, buildings and other road assets.