v3.25.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Inventories (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Jun. 30, 2024
Accounting Policies [Abstract]      
Finished products $ 574.4 $ 534.6 $ 514.2
Raw materials 57.8 69.7 58.8
Products in process 10.9 9.0 8.8
Operating supplies and other 82.4 68.5 68.5
Total inventories $ 725.5 $ 681.8 $ 650.3