RETIREMENT BENEFIT OBLIGATIONS - Schedule of Assumptions Used (Details)	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Postretirement Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate	5.40%	5.30%	5.50%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate for PBO	5.30%	5.50%	5.50%
Discount rate for service cost		5.60%	5.50%
Discount rate for interest on PBO	4.90%	5.40%	5.60%
U.S.
Weighted-average assumptions used to determine benefit obligations
Discount rate	5.60%	5.50%	5.60%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate for PBO	5.50%	5.60%	5.40%
Discount rate for interest on PBO	5.00%	5.50%	5.50%
Expected return on plan assets	6.00%	5.80%	6.00%
Foreign Pension Benefits
Weighted-average assumptions used to determine benefit obligations
Discount rate	5.80%	5.50%	5.20%
Rate of increase in future compensation	2.60%	2.60%	2.90%
Weighted-average assumptions used to determine net periodic benefit cost
Discount rate for PBO	5.50%	5.20%	5.40%
Discount rate for service cost	4.60%	5.30%	5.40%
Discount rate for interest on PBO	5.10%	5.10%	5.70%
Expected return on plan assets	6.50%	5.90%	5.40%
Rate of increase in future compensation	2.60%	2.90%	3.90%