Retirement Benefits - Schedule of Weighted-Average Actuarial Assumptions Used to Measure Net Periodic Benefit Cost and Benefit Obligations (Details)	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Other Postretirement Benefits
Net Periodic Benefit Cost
Discount rate	5.23%	4.86%	4.26%
Benefit Obligation
Discount rate	5.18%	5.23%	4.86%
United States | Pension Plan
Net Periodic Benefit Cost
Discount rate	5.27%	4.88%	4.36%
Average increase in compensation	3.81%	3.81%	3.35%
Expected return on plan assets	7.00%	7.00%	6.50%
Benefit Obligation
Discount rate	5.27%	5.27%	4.88%
Average increase in compensation	3.79%	3.76%	3.81%
Non-U.S. Pension Benefits | Pension Plan
Net Periodic Benefit Cost
Discount rate	4.19%	4.24%	3.40%
Average increase in compensation	2.73%	2.76%	2.87%
Expected return on plan assets	4.47%	5.22%	4.13%
Benefit Obligation
Discount rate	4.36%	4.19%	4.24%
Average increase in compensation	2.65%	2.73%	2.76%