v3.26.3
RETIREMENT PLANS - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Other Postretirement Benefits Plan          
Defined Contribution Plan Disclosure [Line Items]          
Contributions $ 7.8 $ 6.5 $ 13.3 $ 13.6  
Expected contributions 17.2   17.2   $ 15.5
Pension Plan          
Defined Contribution Plan Disclosure [Line Items]          
Contributions $ 7.0 $ 6.2 $ 26.6 $ 19.0