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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

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+ References

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- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

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+ Details

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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

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