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EMPLOYEE BENEFIT PLANS (Schedule of Weighted Average Assumptions Used) (Details)
12 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Retirement Income | Retirement Income      
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 4.37% 3.72%  
Rate of compensation increase 3.62% 3.09%  
Interest crediting rate 2.67% 2.69%  
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 3.72% 2.56% 2.45%
Rate of compensation increase 3.09% 3.02% 2.92%
Expected return on plan assets 2.67% 3.00% 3.08%
Interest crediting rate 2.69% 2.57% 1.92%
Retirement Health Care | Retirement Health Care      
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]      
Discount rate 5.10% 4.65%  
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]      
Discount rate 4.65% 2.61% 2.51%