v3.26.1
RESTRUCTURING - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 25 Months Ended 30 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2024
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net $ 21 $ 17 $ 39 $ 48      
Restructuring expense, net of cash paid     11 23      
Corporate              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 0 0 2 1      
Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net 19 13 32 33      
Employee termination benefits | Corporate              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 0 0 2 1      
PowerDrive Systems              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 3 1 2 17      
PowerDrive Systems | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 3 1 3 9      
Turbos & Thermal Technologies              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 4 10 13 17      
Turbos & Thermal Technologies | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 4 8 10 13      
Drivetrain & Morse Systems              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 2 1 6 2      
Drivetrain & Morse Systems | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 1 1 2 1      
Battery Energy Systems              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 12 5 16 11      
Battery Energy Systems | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 11 3 15 9      
2024 Restructuring Plan | PowerDrive Systems              
Restructuring Cost and Reserve [Line Items]              
Restructuring and related plan             $ 75
Restructuring expense, net 3 1 2 17 $ 46    
2024 Restructuring Plan | PowerDrive Systems | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net     3 9      
2024 Restructuring Plan | PowerDrive Systems | Professional Fees and Equipment Relocation Costs              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net (1)     8      
2023 Restructuring Plan              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net       8   $ 148  
2023 Restructuring Plan | Turbos & Thermal Technologies              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net       7      
2023 Restructuring Plan | Turbos & Thermal Technologies | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net       5      
2023 Restructuring Plan | Turbos & Thermal Technologies | Professional Fees and Equipment Relocation Costs              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net       2      
Other Actions | Consolidation Restructuring Efforts              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net 18 16 37 23      
Other Actions | Employee termination benefits | Corporate              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid     2        
Other Actions | Turbos & Thermal Technologies              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net 4 10 13 10      
Other Actions | Turbos & Thermal Technologies | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net 10   10 8      
Other Actions | Turbos & Thermal Technologies | Contractual Settlement              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net 3   3 2      
Other Actions | Drivetrain & Morse Systems | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net     2        
Other Actions | Drivetrain & Morse Systems | Professional Fees and Equipment Relocation Costs              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net     4        
Other Actions | Drivetrain & Morse Systems | Contractual Settlement              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net of cash paid 2   6        
Other Actions | Battery Energy Systems              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net $ 12 $ 5 16 11      
Other Actions | Battery Energy Systems | Employee termination benefits              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net     15 $ 9      
Other Actions | Battery Energy Systems | Professional Fees and Equipment Relocation Costs              
Restructuring Cost and Reserve [Line Items]              
Restructuring expense, net     $ 1