XML 55 R44.htm IDEA: XBRL DOCUMENT v3.22.2
Inventories (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Inventory, Net [Abstract]    
Raw materials $ 79.7 $ 132.9
Work-in-process 71.6 76.1
Finished goods 48.0 43.9
Operating and other supplies 216.6 172.7
Total inventories $ 415.9 $ 425.6