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Asset Impairments and Assets Held for Sale (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property | $ 137.8 | $ 130.9 | $ 121.2
Asset Impairment Charges | 0.0 | 1.5 | 48.9
Assets Held-for-sale, Long Lived, Fair Value Disclosure | 0.4 | 0.8 |
Net gain (loss) on asset dispositions | 138.3 | 130.3 | 77.9
Rail North America [Member] |  |  |
Asset Impairment Charges |  | 0.0 | 0.0
Net gain (loss) on asset dispositions | 132.8 | 120.5 | 119.7
Rail International [Member] |  |  |
Asset Impairment Charges | 0.0 | 0.3 | 14.6
Charge for anticipated liquidation of translation adjustment |  |  | 1.2
Net gain (loss) on asset dispositions | 4.5 | 7.0 | (11.2)
Portfolio Management [Member] |  |  |
Asset Impairment Charges | 0.0 | 1.2 | 34.3
Net gain (loss) on asset dispositions | $ 0.6 | $ 2.2 | $ (31.1)

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- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, excluding oil and gas property and timber property. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482130/360-10-45-5 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-3 + Details
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