Annual report [Section 13 and 15(d), not S-K Item 405]

FORMATION OF ATMUS AND IPO (Details)

v3.25.4
FORMATION OF ATMUS AND IPO (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
Mar. 18, 2024
USD ($)
Rate
shares
May 30, 2023
USD ($)
shares
May 23, 2023
USD ($)
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
May 09, 2025
USD ($)
May 26, 2023
$ / shares
Noncash or Part Noncash Divestitures [Line Items]                
Proceeds from Issuance of Commercial Paper     $ 350          
Sale of Stock, Number of Shares Issued in Transaction | shares       100        
Impact on equity from initial public offering of subsidiary           $ 282    
Discount on Exchange Ratio 0.07              
Gain (Loss) on Disposition of Business       $ 0 $ 1,333 0    
Goodwill       2,224 2,370 2,499    
Unsecured Debt             $ 2,000  
Other comprehensive income (loss), net of tax (Note 16)       154 (255) (319)    
Transitional Services Agreement, Term 2 years              
Impact on equity from divestiture of subsidiary         (1,490)      
Additional paid-in Capital                
Noncash or Part Noncash Divestitures [Line Items]                
Impact on equity from initial public offering of subsidiary   $ 285       285    
Noncontrolling interests                
Noncash or Part Noncash Divestitures [Line Items]                
Impact on equity from initial public offering of subsidiary           (3)    
Other comprehensive income (loss), net of tax (Note 16)       (13) (16) (3)    
Impact on equity from divestiture of subsidiary         (19)      
Atmus Term loan, due 2027                
Noncash or Part Noncash Divestitures [Line Items]                
Unsecured Debt           600    
Rounded Purchase Price Member                
Noncash or Part Noncash Divestitures [Line Items]                
Gain (Loss) on Disposition of Business       $ 1,300 1,300      
Atmus Filtration Technologies Inc.                
Noncash or Part Noncash Divestitures [Line Items]                
Subsidiary, Ownership Percentage, Parent | Rate 80.50%              
Atmus Filtration Technologies Inc.                
Noncash or Part Noncash Divestitures [Line Items]                
Exchange of stock, percentage of ownership exchanged   19.50%            
Sale of Stock, Number of Shares Issued in Transaction | shares 67,000,000 16,000,000            
Sale of Stock, Price Per Share | $ / shares               $ 19.50
Proceeds from Issuance or Sale of Equity   $ 299            
Cash Transferred From Subsidiary to Parent   $ 650            
Cash and cash equivalents           $ 166    
Goodwill $ 114              
Other comprehensive income (loss), net of tax (Note 16)         $ 61      
Cummins, Inc. [Member]                
Noncash or Part Noncash Divestitures [Line Items]                
Sale of Stock, Number of Shares Issued in Transaction | shares 5,600,000