STOCKHOLDERS’ EQUITY - Summary of Shares Repurchased and Subsequently Retired and the Related Consideration Paid (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Class of Stock [Line Items]
Shares (in shares)	23.7	5.3	5.0
Amount	$ 643	$ 150	$ 117
Class A Common Stock
Class of Stock [Line Items]
Shares (in shares)	16.2	3.5	3.4
Amount	$ 423	$ 97	$ 79
Class B Common Stock
Class of Stock [Line Items]
Shares (in shares)	7.5	1.8	1.6
Amount	$ 220	$ 53	$ 38