XML 93 R44.htm IDEA: XBRL DOCUMENT v3.22.2.2
Inventories (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Inventory, Net [Abstract]    
Raw materials $ 62.7 $ 132.9
Work-in-process 56.2 76.1
Finished goods 41.0 43.9
Operating and other supplies 223.3 172.7
Total inventories $ 383.2 $ 425.6