INCOME TAXES - Schedule of Reconciliation of Effective Tax Rate, Current Period (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Amount
Statutory federal tax rate	$ 166
State income taxes, net of federal benefit	18
Expired tax credit carryforwards	30
Other	14
Effect of changes in tax laws or rates enacted in the current period	0
Effect of cross-border tax laws	(5)
Foreign tax credits	(9)
Other tax credits	(3)
Nontaxable or nondeductible items	8
Changes in unrecognized tax benefits	3
Other	4
Income Tax Expense (Benefit), Total	$ 190	$ 254	$ 106
Percent
Statutory federal tax rate	21.00%	21.00%	21.00%
State income taxes, net of federal benefit	2.30%	2.70%	2.50%
Expired tax credit carryforwards	3.80%
Other	1.80%	2.60%	7.70%
Effect of changes in tax laws or rates enacted in the current period	0.00%
Effect of cross-border tax laws	(0.60%)
Foreign tax credits	(1.10%)
Other tax credits	(0.40%)
Nontaxable or nondeductible items	1.00%
Changes in unrecognized tax benefits	0.40%
Other	0.40%	(2.60%)	(2.40%)
Effective tax rate	24.00%	23.60%	26.50%
Tax Jurisdiction of Domicile [Extensible Enumeration]	United States
Puerto Rico
Amount
Changes in valuation allowances	$ (30)
Percent
Changes in valuation allowances	(3.80%)
United States
Amount
Changes in valuation allowances	$ (6)
Percent
Changes in valuation allowances	(0.80%)