INCOME TAXES - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Income Tax Disclosure [Abstract]
Tax Jurisdiction of Domicile [Extensible Enumeration]	United States
Amount
U.S. federal statutory tax rate	$ 220
State and local income taxes, net of federal income tax effect	18
U.S. foreign tax credits	(18)
U.S. research and development tax credits	(9)
Nontaxable or nondeductible items	12
Changes in unrecognized tax benefits	(19)
Total income tax expense	$ 303	$ 275	$ 206
Percent
U.S. federal statutory tax rate	21.00%	21.00%	21.00%
State and local income taxes, net of federal income tax effect	1.70%	2.00%	2.00%
Statutory rate differential		10.00%	12.00%
U.S. foreign tax credits	(1.80%)
U.S. research and development tax credits	(0.80%)	(1.00%)	(3.00%)
Nontaxable or nondeductible items	1.20%
Changes in unrecognized tax benefits	(1.80%)
Effective tax rate	28.90%	30.00%	35.00%
Australia
Amount
Statutory rate differential	$ 58
Other adjustments	$ 1
Percent
Statutory rate differential	5.50%
Other adjustments	0.10%
U.K.
Amount
Statutory rate differential	$ 15
Percent
Statutory rate differential	1.40%
Other foreign jurisdictions
Amount
Statutory rate differential	$ 23
Percent
Statutory rate differential	2.20%
United States
Amount
Other adjustments	$ 2
Percent
Other adjustments	0.20%