Revenue Recognition - Additional Information (Details 1) $ in Millions	Dec. 31, 2023 USD ($)
Disaggregation of Revenue [Abstract]
Revenue, Remaining Performance Obligation, Amount	$ 11,350
Transaction price allocated to performance obligations to be satisfied during fiscal 2024	3,270
Transaction price allocated to performance obligations to be satisfied during fiscal 2025	3,120
Transaction price allocated to performance obligations to be satisfied beyond fiscal 2025	$ 4,960

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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Namespace Prefix:	osk_
Data Type:	xbrli:monetaryItemType
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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
Balance Type:	credit
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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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