STOCKHOLDERS' EQUITY - Schedule of Changes in Accumulated Other Comprehensive Net (Loss) Income (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 492	$ 388	$ 729
Total other comprehensive (loss) income, net of tax	(2)	338	(14)
Ending balance	482	492	388
Accumulated other comprehensive net (loss) income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(155)	(493)	(479)
Other comprehensive (loss) income before reclassifications	7	(7)	(4)
Amounts reclassified from Accumulated other comprehensive net (loss) income	(8)	390	(13)
Income tax benefit (expense)	(1)	(45)	3
Total other comprehensive (loss) income, net of tax	(2)	338	(14)
Ending balance	(157)	(155)	(493)
Foreign currency translation adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(239)	(445)	(448)
Other comprehensive (loss) income before reclassifications	5	(16)	1
Amounts reclassified from Accumulated other comprehensive net (loss) income	0	223	0
Income tax benefit (expense)	1	(1)	2
Total other comprehensive (loss) income, net of tax	6	206	3
Ending balance	(233)	(239)	(445)
Net unrealized gains (losses) on derivatives
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	85	99	121
Other comprehensive (loss) income before reclassifications	0	(8)	(6)
Amounts reclassified from Accumulated other comprehensive net (loss) income	(6)	(7)	(19)
Income tax benefit (expense)	(2)	1	3
Total other comprehensive (loss) income, net of tax	(8)	(14)	(22)
Ending balance	77	85	99
Pension and postretirement benefit adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1)	(147)	(152)
Other comprehensive (loss) income before reclassifications	2	17	1
Amounts reclassified from Accumulated other comprehensive net (loss) income	(2)	174	6
Income tax benefit (expense)	0	(45)	(2)
Total other comprehensive (loss) income, net of tax	0	146	5
Ending balance	$ (1)	$ (1)	$ (147)