XML 67 R49.htm IDEA: XBRL DOCUMENT v3.23.2
Inventories (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Inventory, Net [Abstract]    
Raw materials $ 117.6 $ 64.9
Work-in-process 86.4 46.0
Finished goods 44.4 58.0
Operating and other supplies 262.4 229.9
Total inventories $ 510.8 $ 398.8