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Note 11 - Properties
6 Months Ended
Jun. 30, 2022
Notes to Financial Statements  
Property, Plant and Equipment Disclosure [Text Block]

11. 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 June 30, 2022

Cost

Depreciation

Value

Useful Life

 

Land

 $5,333  $N/A  $5,333   N/A 

Road:

                

Rail and other track material

  18,217   6,977   11,240   43 

Ties

  11,538   3,605   7,933   34 

Ballast

  6,140   1,903   4,237   34 

Other roadway [a]

  21,945   4,811   17,134   47 

Total road

  57,840   17,296   40,544   N/A 

Equipment:

                

Locomotives

  9,158   3,617   5,541   18 

Freight cars

  2,407   862   1,545   23 

Work equipment and other

  1,191   444   747   18 

Total equipment

  12,756   4,923   7,833   N/A 

Technology and other

  1,268   539   729   13 

Construction in progress

  876   -   876   N/A 

Total

 $78,073  $22,758  $55,315   N/A 

 

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.