v3.25.4
RESTRUCTURING - Narrative (Details)
$ in Millions
 12 Months Ended 19 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
employee
Dec. 31, 2025
USD ($)
Jun. 30, 2024
USD ($)
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net $ 101 $ 74 $ 79    
Restructuring expense, net of cash paid 36 6 66    
2024 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring and related plan         $ 75
Restructuring expense, net 31        
2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 8 61 79 $ 148  
2023 Restructuring Plan | Minimum          
Restructuring Cost and Reserve [Line Items]          
Restructuring and related plan     130    
2023 Restructuring Plan | Maximum          
Restructuring Cost and Reserve [Line Items]          
Restructuring and related plan     150    
Turbos & Thermal Technologies          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 49 39 70    
Turbos & Thermal Technologies | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 7 39 70    
Turbos & Thermal Technologies | Other Actions          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 42        
Drivetrain & Morse Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 1 11 8    
Drivetrain & Morse Systems | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid   11 8    
PowerDrive Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 31 22 1    
PowerDrive Systems | 2024 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net   13   $ 44  
Restructuring expense, net of cash paid 31        
PowerDrive Systems | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net   9      
Battery & Charging Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 15 1 0    
Battery & Charging Systems | Other Actions          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 15        
Severance costs and professional fees | Turbos & Thermal Technologies | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 5 21      
Severance costs and professional fees | PowerDrive Systems | 2024 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 19 9      
Severance costs and professional fees | PowerDrive Systems | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net   8      
Employee termination benefits          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 78 43 70    
Employee termination benefits | Turbos & Thermal Technologies          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 44 21 $ 63    
Employee termination benefits | Turbos & Thermal Technologies | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Number of positions eliminated (in employees) | employee     200    
Employee termination benefits | Turbos & Thermal Technologies | Other Actions          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 39        
Employee termination benefits | Drivetrain & Morse Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid (1) 10 $ 6    
Employee termination benefits | Drivetrain & Morse Systems | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net   10 6    
Employee termination benefits | PowerDrive Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 19 10 1    
Employee termination benefits | Battery & Charging Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 11 1 0    
Employee termination benefits | Battery & Charging Systems | Other Actions          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 11        
Professional Fees and Equipment Relocation Costs | Turbos & Thermal Technologies | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 2 18      
Professional Fees and Equipment Relocation Costs | Drivetrain & Morse Systems | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net     2    
Professional Fees and Equipment Relocation Costs | PowerDrive Systems | 2024 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 12 4      
Consolidation Restructuring Efforts | 2023 Restructuring Plan          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 62        
Contractual Settlement | Turbos & Thermal Technologies | Other Actions          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 3        
Other          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net 23 31 9    
Other | Turbos & Thermal Technologies          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 5 18 7    
Other | Drivetrain & Morse Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 2 1 2    
Other | PowerDrive Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 12 12 0    
Other | Battery & Charging Systems          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid 4 $ 0 $ 0    
Other | Battery & Charging Systems | Other Actions          
Restructuring Cost and Reserve [Line Items]          
Restructuring expense, net of cash paid $ 4