Description of Business [Line Items]

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481687/323-10-50-3

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_OverAllotmentOptionMember
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- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
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- Details

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Balance Type:
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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=atmu_TermLoanFacilityMember
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DESCRIPTION OF THE BUSINESS (Details) $ in Millions		12 Months Ended
DESCRIPTION OF THE BUSINESS (Details) $ in Millions	May 26, 2023 USD ($) shares	Dec. 31, 2023 USD ($) country	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)
Description of Business [Line Items]
Number of countries \| country		140
Atmus Filtration Technologies Inc. And Subsidiaries \| Cummins Filtration, Inc.
Description of Business [Line Items]
Ownership Percentage	80.50%
IPO \| Cummins Filtration, Inc.
Description of Business [Line Items]
Number of shares issued in transaction (in shares) \| shares	16,243,070
Over-Allotment Option \| Cummins Filtration, Inc.
Description of Business [Line Items]
Number of shares issued in transaction (in shares) \| shares	2,118,661
Revolving Credit Facility \| Atmus Credit Agreement \| Line of Credit
Description of Business [Line Items]
Line of credit facility, maximum borrowing capacity				$ 1,000.0
Proceeds from debt borrowings	$ 650.0
Revolving Credit Facility \| Atmus Term Loan Facility \| Line of Credit
Description of Business [Line Items]
Line of credit facility, maximum borrowing capacity		$ 600.0	$ 0.0	600.0
Proceeds from debt borrowings		600.0
Revolving Credit Facility \| Atmus Revolving Credit Facility \| Line of Credit
Description of Business [Line Items]
Line of credit facility, maximum borrowing capacity		400.0	$ 0.0	$ 400.0
Proceeds from debt borrowings		$ 0.0