XML 42 R31.htm IDEA: XBRL DOCUMENT v3.23.1
Inventories (Tables)
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Schedule of Inventory
The classes of inventory are summarized as follows ($ in millions):
March 31, 2023December 31, 2022
Finished goods$234.6 $229.2 
Work in process24.5 23.9 
Raw materials105.7 103.4 
Reserve for inventory obsolescence(57.6)(55.7)
Total$307.2 $300.8