SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Jun. 30, 2023
Accounting Policies [Abstract]
Effective rate for income taxes (as a percent)	31.10%	44.60%	33.90%	27.90%
Basis-point change from the prior-year period (as a percent)	(13.50%)		6.00%
Gross unrecognized tax benefits	$ 64		$ 64		$ 63
Total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate	54		54
Gross interest and penalty accrued	1		3
Total gross accrued interest and penalties related to unrecognized tax benefits	$ 18		$ 18		$ 15