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Other Income (Table) | 12 Months Ended
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Dec. 31, 2024
Other Income and Expenses [Abstract] |
Schedule of Other Nonoperating Income, by Component | Other income included the following for the years ended December 31:
Millions | 2024 | 2023 | 2022
Real estate income [a] | $ | 263 |  | $ | 414 |  | $ | 381 |
Net periodic pension benefit/(costs) | 55 |  | 52 |  | 84 |
Interest income [b] | 52 |  | 52 |  | 23 |
Non-operating property environmental remediation and restoration | (37) |  | (37) |  | (47) |
Interest from IRS refund claims | 24 |  | - |  | - |
Other [b] | (7) |  | 10 |  | (15) |
Total | $ | 350 |  | $ | 491 |  | $ | 426 |
[a]2023 includes a one-time $107 million transaction. 2022 includes a $79 million gain from a land sale to the Illinois State Toll Highway Authority and a $35 million gain from a sale to the Colorado Department of Transportation. [b]Prior periods have been reclassified to conform to the current period disclosure.

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- Definition Tabular disclosure of the detailed components of other nonoperating income. May include methodology, assumptions and amounts for: (a) dividends, (b) interest on securities, (c) profits on securities (net of losses), and (d) miscellaneous other income items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(7)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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