SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023
Accounting Policies [Abstract]
Effective rate for income taxes (as a percent)	37.60%	25.40%	36.30%	23.90%
Basis-point change from the prior-year period (as a percent)	12.20%		12.40%
Gross unrecognized tax benefits	$ 63		$ 63		$ 63
Total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate	53		53
Gross interest and penalty accrued	2		2
Total gross accrued interest and penalties related to unrecognized tax benefits	$ 17		$ 17		$ 15