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Other Expense, Net
 3 Months Ended
Sep. 30, 2023
Other Income and Expenses [Abstract]  
Other Expense, Net Other Expense, Net
 
Other expense, net consisted of the following:
Three Months Ended
September 30,
($ in millions)20232022
Interest income$(0.2)$(0.1)
Foreign exchange losses0.3 0.1 
Unrealized losses on company-owned life insurance contracts and investments held in rabbi trusts0.4 1.0 
Pension earnings, interest and deferrals 3.5 2.5 
Total other expense, net$4.0 $3.5