INCOME TAXES - Summary of Changes in Valuation Allowance (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Deferred Tax Assets, Valuation Allowance [Roll Forward]
Valuation allowance at beginning of year	$ (115)	$ (59)	$ (52)
Net decrease/(increase) for U.S. capital loss carryforwards	(62)	(46)	0
Net decrease/(increase) for other foreign deferred tax assets	1	(2)	(1)
Net decrease/(increase) for foreign and U.S. net operating loss carryforwards and tax credits	10	(8)	(6)
Valuation allowance at end of year	$ (166)	$ (115)	$ (59)