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EMPLOYEE BENEFIT PLANS - Fair Values of Pension Plan Assets (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Fair Value Measured at Net Asset Value Per Share | Fixed income |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | $ 210.3 | $ 344.2 |
Pension Benefits |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 396.6 | 529.3 | $ 573.6
Pension Benefits | Fair Value, Inputs, Level 1, 2 and 3 |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 78.6 | 103.8 |
Pension Benefits | Fair Value, Inputs, Level 1, 2 and 3 | Cash |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 3.7 | 6.5 |
Pension Benefits | Fair Value, Inputs, Level 1, 2 and 3 | Bonds and Notes |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 50.0 | 68.3 |
Pension Benefits | Fair Value, Inputs, Level 1, 2 and 3 | Global Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 7.7 | 10.6 |
Pension Benefits | Fair Value, Inputs, Level 1, 2 and 3 | Other |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 17.2 | 18.4 |
Pension Benefits | Quoted Prices in Active Markets (Level 1) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 61.4 | 85.4 |
Pension Benefits | Quoted Prices in Active Markets (Level 1) | Cash |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 3.7 | 6.5 |
Pension Benefits | Quoted Prices in Active Markets (Level 1) | Bonds and Notes |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 50.0 | 68.3 |
Pension Benefits | Quoted Prices in Active Markets (Level 1) | Global Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 7.7 | 10.6 |
Pension Benefits | Quoted Prices in Active Markets (Level 1) | Other |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 0.0 | 0.0 |
Pension Benefits | Significant Other Observable Inputs (Level 2) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 2.7 | 3.1 |
Pension Benefits | Significant Other Observable Inputs (Level 2) | Cash |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 0.0 | 0.0 |
Pension Benefits | Significant Other Observable Inputs (Level 2) | Bonds and Notes |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 0.0 | 0.0 |
Pension Benefits | Significant Other Observable Inputs (Level 2) | Global Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 0.0 | 0.0 |
Pension Benefits | Significant Other Observable Inputs (Level 2) | Other |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 2.7 | 3.1 |
Pension Benefits | Significant Unobservable Inputs (Level 3) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 14.5 | 15.3 |
Pension Benefits | Significant Unobservable Inputs (Level 3) | Cash |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 0.0 | 0.0 |
Pension Benefits | Significant Unobservable Inputs (Level 3) | Bonds and Notes |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 0.0 | 0.0 |
Pension Benefits | Significant Unobservable Inputs (Level 3) | Global Equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 0.0 | 0.0 |
Pension Benefits | Significant Unobservable Inputs (Level 3) | Other |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 14.5 | 15.3 |
Pension Benefits | Fair Value Measured at Net Asset Value Per Share | Total common collective funds |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 318.0 | 425.5 |
Pension Benefits | Fair Value Measured at Net Asset Value Per Share | United States equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 42.7 | 32.7 |
Pension Benefits | Fair Value Measured at Net Asset Value Per Share | International equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | 43.4 | 32.1 |
Pension Benefits | Fair Value Measured at Net Asset Value Per Share | Global equity |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan assets | $ 21.6 | $ 16.5 |

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