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OTHER OPERATING EXPENSE, NET - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Schedule of Equity Method Investments [Line Items] |  |  |
Merger and acquisition expense, net | $ 23 | $ 9 | $ 48
Loss on change in estimate of the expected earn-out estimate | 8 |  |
Asset impairments and lease modifications | 29 | 30 | 0
Asset impairments | 20 | 30 | 0
Gain on sale of assets | 13 | 0 | 0
Spin-Off of PHINIA | 10 | 0 | 0
Gain (loss) on divestiture | 5 | $ 13 | $ (29)
BorgWarner Romeo Power LLC |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Gain (loss) on divestiture | 22 |  |
Previous Divestiture |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Gain (loss) on divestiture | (9) |  |
ePropulsion |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Gain (loss) on divestiture | (7) |  |
Water Valley |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Gain (loss) on divestiture | (22) |  |
Trade Names |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Asset impairments | $ 30 |  |

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