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Note 10 - Properties (Tables)

9 Months Ended

Sep. 30, 2023

Notes Tables

Property, Plant and Equipment [Table Text Block]

Millions, Except Estimated Useful Life						Accumulated				Net Book				Estimated
As of September 30, 2023		Cost				Depreciation				Value				Useful Life
Land		$	5,372			$	N/A			$	5,372				N/A
Road:
Rail and other track material			18,747				7,280				11,467				42
Ties			11,934				3,844				8,090				34
Ballast			6,320				2,031				4,289				34
Other roadway [a]			22,899				5,269				17,630				47
Total road			59,900				18,424				41,476				N/A
Equipment:
Locomotives			9,317				3,667				5,650				18
Freight cars			2,710				945				1,765				23
Work equipment and other			1,319				527				792				17
Total equipment			13,346				5,139				8,207				N/A
Technology and other			1,294				559				735				12
Construction in progress			1,220				-				1,220				N/A
Total		$	81,132			$	24,122			$	57,010				N/A

Millions, Except Estimated Useful Life						Accumulated				Net Book				Estimated
As of December 31, 2022		Cost				Depreciation				Value				Useful Life
Land		$	5,344			$	N/A			$	5,344				N/A
Road:
Rail and other track material			18,419				7,096				11,323				43
Ties			11,676				3,699				7,977				34
Ballast			6,222				1,950				4,272				34
Other roadway [a]			22,411				4,970				17,441				47
Total road			58,728				17,715				41,013				N/A
Equipment:
Locomotives			9,166				3,606				5,560				18
Freight cars			2,562				898				1,664				23
Work equipment and other			1,253				473				780				17
Total equipment			12,981				4,977				8,004				N/A
Technology and other			1,254				525				729				12
Construction in progress			948				-				948				N/A
Total		$	79,255			$	23,217			$	56,038				N/A