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PENSION, DEFERRED COMPENSATION AND POST-RETIREMENT BENEFIT PLANS - 401(k) Savings Plan (U.S.) and Deferred Compensation (Details) - USD ($)
$ in Millions
12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
401(k) Savings Plan (U.S.)      
Minimum period following date of hire after which full-time employees become eligible to participate in the savings plan 30 days    
Minimum service period after which the Company matches a portion of the participant's contributions 1 year    
Company's contribution to contributory defined contribution plan $ 51 $ 51 $ 50
Deferred Compensation      
Accrued amount of deferred compensation and interest thereon 41 44  
Deferred compensation expense (income) to reflect additional deferrals and change in market value (in dollars) $ (3) $ (14) $ (7)