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Inventories (Tables)
12 Months Ended
Jun. 30, 2022
Inventory Disclosure [Abstract]  
Schedule of inventories
Inventories consisted of the following components at June 30, 2022 and 2021:
    
 June 30,
($ in millions)20222021
Raw materials and supplies$127.8 $115.0 
Work in process261.2 206.2 
Finished and purchased products107.1 104.5 
Total inventory$496.1 $425.7