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Note 1. Summary of Significant Accounting Policies Long-Lived Assets (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Restructuring Cost and Reserve [Line Items] |  |  |  |
Impairment of long-lived assets | $ 369.4 | $ 0.0 | $ 0.0 | $ 396.4
Railroad Transportation Equipment [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Impairment of long-lived assets |  |  |  | 369.4
Building [Member] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Impairment of long-lived assets |  |  |  | 15.2
Investments [Domain] |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Impairment of long-lived assets |  |  |  | $ 11.8

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2420-110228 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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