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INVENTORIES (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Sep. 30, 2021
Inventory Disclosure [Abstract]      
Supplies $ 137.2 $ 115.6 $ 115.5
Raw materials 203.4 180.7 158.5
Work in process 189.6 155.2 156.3
Finished goods 569.2 523.3 492.2
Inventories excluding LIFO reserve 1,099.4 974.8 922.5
LIFO reserve (154.3) (106.5) (95.7)
Inventories, net $ 945.1 $ 868.3 $ 826.8