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Note 10 - Properties

3 Months Ended

Mar. 31, 2022

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

10. Properties

The following tables list the major categories of property and equipment, as well as the weighted-average estimated useful life for each category (in years):

Millions, Except Estimated Useful Life						Accumulated				Net Book				Estimated
As of March 31, 2022		Cost				Depreciation				Value				Useful Life
Land		$	5,336			$	N/A			$	5,336				N/A
Road:
Rail and other track material			18,102				6,910				11,192				43
Ties			11,455				3,563				7,892				34
Ballast			6,104				1,878				4,226				34
Other roadway [a]			21,791				4,730				17,061				47
Total road			57,452				17,081				40,371				N/A
Equipment:
Locomotives			9,230				3,660				5,570				18
Freight cars			2,339				839				1,500				23
Work equipment and other			1,172				428				744				18
Total equipment			12,741				4,927				7,814				N/A
Technology and other			1,271				523				748				13
Construction in progress			795				-				795				N/A
Total		$	77,595			$	22,531			$	55,064				N/A

[a]

Other roadway includes grading, bridges and tunnels, signals, buildings, and other road assets.

Millions, Except Estimated Useful Life						Accumulated				Net Book				Estimated
As of December 31, 2021		Cost				Depreciation				Value				Useful Life
Land		$	5,339			$	N/A			$	5,339				N/A
Road:
Rail and other track material			17,980				6,844				11,136				44
Ties			11,364				3,516				7,848				34
Ballast			6,070				1,852				4,218				34
Other roadway [a]			21,593				4,657				16,936				47
Total road			57,007				16,869				40,138				N/A
Equipment:
Locomotives			9,371				3,779				5,592				17
Freight cars			2,227				822				1,405				24
Work equipment and other			1,161				411				750				18
Total equipment			12,759				5,012				7,747				N/A
Technology and other			1,209				523				686				12
Construction in progress			961				-				961				N/A
Total		$	77,275			$	22,404			$	54,871				N/A

[a]

Other roadway includes grading, bridges and tunnels, signals, buildings, and other road assets.