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PENSION, DEFERRED COMPENSATION AND POST-RETIREMENT BENEFIT PLANS - Trend Rates (Details) - Other than Pension Plans
12 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Defined Benefit Plan Disclosure    
Weighted-average interest crediting rates (as a percent) 5.20% 4.00%
Assumed weighted-average health care cost trend rate for the coming year (as a percent) 5.40%  
Weighted-average ultimate trend rate (as a percent) 4.02%  
Minimum    
Defined Benefit Plan Disclosure    
Period after which ultimate trend rate is expected to be reached 16 years  
Maximum    
Defined Benefit Plan Disclosure    
Period after which ultimate trend rate is expected to be reached 22 years