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Inventories (Tables)
3 Months Ended
Sep. 30, 2021
Inventory, Net [Abstract]  
Schedule of Inventories
Inventories consisted of the following components as of September 30, 2021 and June 30, 2021:
 
($ in millions)September 30,
2021
June 30,
2021
Raw materials and supplies$124.8 $115.0 
Work in process251.1 206.2 
Finished and purchased products115.5 104.5 
Total inventories$491.4 $425.7