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Inventories
3 Months Ended
Mar. 31, 2023
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
The classes of inventory as of March 31, 2023 and December 31, 2022 are summarized as follows:
($ in millions)March 31, 2023December 31, 2022
Finished goods$140.2 $136.6 
Work in process24.7 34.8 
Raw materials185.9 174.6 
Total$350.8 $346.0