v3.25.3
RETIREMENT PLANS - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Other Postretirement Benefits Plan          
Defined Contribution Plan Disclosure [Line Items]          
Contributions $ 6.5 $ 10.5 $ 13.6 $ 14.1  
Expected contributions 14.7   14.7   $ 16.6
Pension Plan          
Defined Contribution Plan Disclosure [Line Items]          
Contributions $ 6.2 $ 11.0 $ 19.0 $ 33.4