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Inventories (Tables)
6 Months Ended
Dec. 31, 2021
Inventory, Net [Abstract]  
Schedule of Inventories
Inventories consisted of the following components as of December 31, 2021 and June 30, 2021:
 
($ in millions)December 31,
2021
June 30,
2021
Raw materials and supplies$135.4 $115.0 
Work in process270.2 206.2 
Finished and purchased products129.1 104.5 
Total inventories$534.7 $425.7