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BENEFIT PLANS - Contributions by Participants to Postretirement Benefit Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Other Postretirement Benefit Plans, Defined Benefit      
Defined Benefit Plan Disclosure [Line Items]      
Participants Contributions $ 1.7 $ 1.5 $ 2.0