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Inventories - Components of Inventories (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Inventory Disclosure [Abstract]    
Raw materials $ 329.7 $ 341.2
Work in process 14.7 16.0
Finished goods 207.2 198.4
Supplies and materials 440.6 421.7
Inventories $ 992.2 $ 977.3