EMPLOYEE BENEFIT PLANS - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Defined Benefit Plan Disclosure [Line Items]
Total	$ 14	$ 16	$ 16
Retirement Income
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1	1
Interest cost	12	18	15
Expected return on plan assets	(2)	(10)	(15)
Amortization of unrecognized items	3	8	9
Curtailment gain recognized	(6)	0	0
Settlement loss recognized	179	0	7
Total	187	17	17
Retirement Health Care
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0
Interest cost	1	1	1
Expected return on plan assets	0	0	0
Amortization of unrecognized items	(2)	(2)	(1)
Curtailment gain recognized	0	0	0
Settlement loss recognized	0	0	0
Total	$ (1)	$ (1)	$ 0