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DESCRIPTION OF THE BUSINESS (Details) - USD ($)
$ in Millions
6 Months Ended 12 Months Ended
May 30, 2023
Jun. 30, 2024
Dec. 31, 2023
Feb. 15, 2023
First-Fit Sales | Revenue Benchmark | Product Concentration Risk        
Description of Business [Line Items]        
Net sales estimate     19.00%  
Aftermarket Sales | Revenue Benchmark | Product Concentration Risk        
Description of Business [Line Items]        
Net sales estimate     81.00%  
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) 16,243,070      
Over-Allotment Option | Cummins Filtration, Inc.        
Description of Business [Line Items]        
Number of shares issued in transaction (in shares) 2,118,661      
Revolving Credit Facility | Atmus Credit Agreement | Line of Credit        
Description of Business [Line Items]        
Facility Amount       $ 1,000.0
Borrowed Amount $ 650.0      
Revolving Credit Facility | Atmus Term Loan Facility | Line of Credit        
Description of Business [Line Items]        
Facility Amount   $ 600.0 $ 600.0 600.0
Borrowed Amount   600.0    
Revolving Credit Facility | Atmus Revolving Credit Facility | Line of Credit        
Description of Business [Line Items]        
Facility Amount   400.0 $ 400.0 $ 400.0
Borrowed Amount   $ 0.0