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Restructuring and Asset Impairment Charges (Tables)
9 Months Ended
Mar. 31, 2021
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs
The reserve balances and activity for restructuring charges at March 31, 2021 were as follows:

($ in millions)Reserve Balance
Reserve balance at June 30, 2020$9.5 
Restructuring charges excluding non-cash impairments1.4 
Cash payments(8.8)
Reserve balance at March 31, 2021$2.1