Revenue Recognition - Additional Information (Details 1) $ in Millions	Sep. 30, 2024 USD ($)
Disaggregation of Revenue [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 11,280
Transaction price allocated to performance obligations to be satisfied during remaining 2024	740
Transaction price allocated to performance obligations to be satisfied during 2025	4,030
Transaction price allocated to performance obligations to be satisfied revenue after 2025	$ 6,510

Amount of transaction price allocated to performance obligations expected to be satisfied during subsequent fiscal year.

No definition available.

+ Details

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- Definition

Transaction price allocated to performance obligations expected to be satisfied beyond current fiscal year.

+ References

No definition available.

+ Details

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- Definition

Transaction price allocated to performance obligations to be satisfied during current fiscal year.

+ References

No definition available.

+ Details

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Namespace Prefix:	osk_
Data Type:	xbrli:monetaryItemType
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- References

No definition available.

+ Details

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (a)
-SubTopic 10
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-13

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