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ACQUISITIONS - Narrative (Details) $ in Millions |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 22, 2023 USD ($) | Mar. 31, 2021 USD ($) | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) business | Dec. 21, 2023
Freight Segment |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of businesses acquired | business |  |  |  | 3 |
Digital Intelligence | Freight Segment |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business combination, consideration transferred |  |  |  | $ 89 |
Digital Electronics Product Line | Freight Segment |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of businesses acquired | business |  |  |  | 2 |
Services Product Line | Freight Segment |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Number of businesses acquired | business |  |  |  | 1 |
LKZ |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Percentage of voting interests acquired | 50.00% |  |  |  |
Business combination, consideration transferred | $ 111 |  |  |  |
Remeasurement gain | $ 35 |  |  |  |
Total purchase price (as a percent) | 100.00% |  |  |  |
L&M Radiator, Inc |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Business combination, consideration transferred |  |  | $ 245 |  |
Nordco |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Percentage of voting interests acquired |  | 100.00% |  |  |
Business combination, consideration transferred |  | $ 410 |  |  |
LKZ |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Ownership percent |  |  |  |  | 50.00%

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