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REPORTABLE SEGMENTS - Schedule of Net sales and expenses by reporting segments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting Information |  |  |  |
Net sales | $ 3,638 | $ 3,603 | $ 7,153 | $ 7,198
Cost of sales | 2,998 | 2,918 | 5,874 | 5,869
Selling, general and administrative expenses - R&D, net | 317 | 341 | 632 | 670
Segment Adjusted Operating Income (Loss) | 289 | 297 | 526 | 592
Net sales - customers |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 3,638 | 3,603 | 7,153 | 7,198
Net sales - inter-segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 0 | 0 | 0 | 0
Inter-segment eliminations |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | (12) | (11) | (23) | (22)
Inter-segment eliminations | Net sales - customers |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 0 | 0 | 0 | 0
Inter-segment eliminations | Net sales - inter-segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | (12) | (11) | (23) | (22)
Turbos & Thermal Technologies |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,480 | 1,515 | 2,934 | 3,087
Turbos & Thermal Technologies | Operating segments |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,481 | 1,515 | 2,935 | 3,089
Cost of sales | 1,181 | 1,219 | 2,332 | 2,494
Selling, general and administrative expenses - R&D, net | 44 | 43 | 85 | 85
Selling, general and administrative expenses - Other | 28 | 28 | 55 | 56
Other segment items | 1 | 1 | 1 | 2
Segment Adjusted Operating Income (Loss) | 227 | 224 | 462 | 452
Turbos & Thermal Technologies | Operating segments | Net sales - customers |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,480 | 1,515 | 2,934 | 3,087
Turbos & Thermal Technologies | Operating segments | Net sales - inter-segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1 | 0 | 1 | 2
Drivetrain & Morse Systems |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,424 | 1,440 | 2,780 | 2,856
Drivetrain & Morse Systems | Operating segments |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,429 | 1,442 | 2,790 | 2,861
Cost of sales | 1,129 | 1,143 | 2,208 | 2,267
Selling, general and administrative expenses - R&D, net | 32 | 25 | 61 | 57
Selling, general and administrative expenses - Other | 8 | 9 | 18 | 18
Other segment items | 0 | (1) | 0 | 0
Segment Adjusted Operating Income (Loss) | 260 | 266 | 503 | 519
Drivetrain & Morse Systems | Operating segments | Net sales - customers |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 1,424 | 1,440 | 2,780 | 2,856
Drivetrain & Morse Systems | Operating segments | Net sales - inter-segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 5 | 2 | 10 | 5
PowerDrive Systems |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 575 | 455 | 1,130 | 885
PowerDrive Systems | Operating segments |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 581 | 464 | 1,142 | 900
Cost of sales | 510 | 401 | 1,002 | 787
Selling, general and administrative expenses - R&D, net | 93 | 103 | 192 | 203
Selling, general and administrative expenses - Other | 15 | 10 | 29 | 23
Other segment items | (4) | (1) | (5) | (2)
Segment Adjusted Operating Income (Loss) | (33) | (49) | (76) | (111)
PowerDrive Systems | Operating segments | Net sales - customers |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 575 | 455 | 1,130 | 885
PowerDrive Systems | Operating segments | Net sales - inter-segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 6 | 9 | 12 | 15
Battery & Charging Systems |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 159 | 193 | 309 | 370
Battery & Charging Systems | Operating segments |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 159 | 193 | 309 | 370
Cost of sales | 151 | 179 | 301 | 350
Selling, general and administrative expenses - R&D, net | 10 | 12 | 21 | 24
Selling, general and administrative expenses - Other | 9 | 11 | 20 | 22
Other segment items | 1 | 1 | 1 | (1)
Segment Adjusted Operating Income (Loss) | (12) | (10) | (34) | (25)
Battery & Charging Systems | Operating segments | Net sales - customers |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | 159 | 193 | 309 | 370
Battery & Charging Systems | Operating segments | Net sales - inter-segment |  |  |  |
Segment Reporting Information |  |  |  |
Net sales | $ 0 | $ 0 | $ 0 | $ 0

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