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Note 2 - Discontinued Operations (Details Textual) - Off-highway Business [Member] - Discontinued Operations, Disposed of by Sale [Member] - Allison Transmission Holdings, Inc. [Member] - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Jun. 30, 2025 | Sep. 30, 2025 | Sep. 30, 2025
Disposal Group, Including Discontinued Operation, Consideration | $ 2,732 |  |
Transition Services Agreement, Period (Month) | 24 months |  |
Transaction Related Costs [Member] |  |  |
Disposal Group, Including Discontinued Operation, Other Expense |  | $ 20 | $ 54

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- Definition Period of transition services agreement. + References No definition available. + Details
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- Definition Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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- Definition Amount of other expense attributable to disposal group, including, but not limited to, discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483499/205-20-50-5B + Details
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- Details
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- Details
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- Details
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- Details
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