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Other Expense, Net
 6 Months Ended
Dec. 31, 2023
Other Income and Expenses [Abstract]  
Other Expense, Net Other Expense, Net
 
Other expense, net consisted of the following:
Three Months Ended
December 31,		Six Months Ended
December 31,
($ in millions)2023202220232022
Unrealized gains on company-owned life insurance contracts and investments held in rabbi trusts$(2.9)$(1.6)$(2.5)$(0.6)
Interest income(0.2)(0.1)(0.3)(0.2)
Foreign exchange losses1.2 1.2 1.5 1.2 
Pension earnings, interest and deferrals3.5 2.5 6.9 4.9 
Other— (0.1)(0.1)0.1 
Total other expense, net$1.6 $1.9 $5.5 $5.4