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Note 11 - Properties (Tables) | 6 Months Ended
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Jun. 30, 2022
Notes Tables |
Property, Plant and Equipment [Table Text Block] |
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 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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