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OTHER OPERATING EXPENSE (INCOME), NET - Narrative (Details)
SFr in Millions, $ in Millions
12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2024
CHF (SFr)
Schedule of Equity Method Investments [Line Items]        
Adjustments associated with Spin-Off related balances $ 17 $ 0 $ 0  
Loss on commercial contract settlement 15 0 0  
Loss (gain) on sale of business (6) 5 13  
Loss (gain) on sale of assets (2) 13 0  
Merger and acquisition expense, net 2 23 9  
Loss on change in estimate of the expected earn-out estimate   8    
Spin-Off of PHINIA 5 $ 10 0  
Water Valley        
Schedule of Equity Method Investments [Line Items]        
Loss (gain) on sale of business     (9)  
BorgWarner Romeo Power LLC        
Schedule of Equity Method Investments [Line Items]        
Loss (gain) on sale of business     $ 22  
Drivetek AG        
Schedule of Equity Method Investments [Line Items]        
Estimated earn-out payments $ 6     SFr 5