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OTHER COMPREHENSIVE INCOME - Accumulated Other Comprehensive Income, Net of Tax (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023
--- | --- | --- | ---
Stockholders' Equity Note [Abstract] |  |  |
Cash flow hedges | $ (18.6) | $ (19.4) | $ (20.2)
Pension and postretirement plans | (122.0) | (124.4) | (131.2)
Total | $ (140.6) | $ (143.8) | $ (151.4)

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