RESTRUCTURING AND RELATED COSTS - Schedule of Accrual for Restructuring and Related Implementation Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Restructuring Reserve [Roll Forward]
Beginning accrual balance	$ 19	$ 28
Charges	0	29
Cash payments	(19)	(38)
Ending accrual balance	$ 0	$ 19
Restructuring, Incurred Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Accounts payable and accrued liabilities	Accounts payable and accrued liabilities
Employee-Related Costs
Restructuring Reserve [Roll Forward]
Beginning accrual balance	$ 8	$ 23
Charges	0	10
Cash payments	(8)	(25)
Ending accrual balance	0	8
Other
Restructuring Reserve [Roll Forward]
Beginning accrual balance	11	5
Charges	0	19
Cash payments	(11)	(13)
Ending accrual balance	$ 0	$ 11