v3.26.1
REPORTABLE SEGMENTS - Schedule of Earnings before interest and income taxes (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Segment Reporting          
Segment Adjusted Operating Income (Loss) $ 370 $ 289 $ 706 $ 526  
Restructuring expense (Note 5) 21 17 39 48  
Intangible asset amortization expense 14 16 30 33  
Accelerated depreciation 7 21 9 21  
Adjustments associated with Spin-Off related balances (1) 2 1 (1)  
Impairment charges 0 3 0 42  
Write-off of customer incentive asset 0 7 0 7  
Costs to exit charging business 0 6 0 32  
Chief Executive Office ("CEO") transition compensation 0 6 0 6  
Loss on sale of assets 0 5 0 5  
Loss on sale of businesses 0 0 0 1  
Merger and acquisition expense, net 0 0 (2) 2  
Other non-comparable items 2 1 2 3  
Equity in affiliates’ earnings, net of tax (10) (8) (16) (18)  
Unrealized gain on equity securities (4) (1) (3) (1)  
Interest Income (Expense), Nonoperating 10 12 21 24  
Other postretirement expense 2 2 4 5  
Earnings before income taxes and noncontrolling interest 372 284 700 516  
Depreciation and amortization 149 179 294 334  
Long-lived asset expenditures 96 77 239 196  
Total assets 13,934   13,934   $ 13,769
Operating segments          
Segment Reporting          
Segment Adjusted Operating Income (Loss) 471 442 907 855  
Depreciation and amortization 142 172 280 320  
Long-lived asset expenditures 94 73 235 190  
Total assets 11,349   11,349   11,161
Corporate          
Segment Reporting          
Corporate, including stock-based compensation 58 69 122 130  
Depreciation and amortization 7 7 14 14  
Long-lived asset expenditures 2 4 4 6  
Total assets 2,585   2,585   2,608
Turbos & Thermal Technologies | Operating segments          
Segment Reporting          
Segment Adjusted Operating Income (Loss) 225 227 439 462  
Depreciation and amortization 39 42 79 82  
Long-lived asset expenditures 46 28 104 69  
Total assets 3,861   3,861   3,743
Drivetrain & Morse Systems | Operating segments          
Segment Reporting          
Segment Adjusted Operating Income (Loss) 277 260 537 503  
Depreciation and amortization 46 70 92 119  
Long-lived asset expenditures 27 17 56 41  
Total assets 3,806   3,806   3,795
PowerDrive Systems | Operating segments          
Segment Reporting          
Segment Adjusted Operating Income (Loss) (29) (33) (65) (76)  
Depreciation and amortization 51 45 97 88  
Long-lived asset expenditures 20 24 72 68  
Total assets 3,254   3,254   3,163
Battery Energy Systems | Operating segments          
Segment Reporting          
Segment Adjusted Operating Income (Loss) (2) (12) (4) (34)  
Depreciation and amortization 6 15 12 31  
Long-lived asset expenditures 1 $ 4 3 $ 12  
Total assets $ 428   $ 428   $ 460