LEASES - Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Lease Cost:
Operating lease cost	$ 76.2	$ 90.4	$ 87.1
Short-term lease cost	0.9	1.2	0.8
Variable lease cost	40.3	39.3	49.5
Sublease income	(15.8)	(20.0)	(14.9)
Net lease cost	101.6	110.9	122.5
Other information:
Operating cash outflows from operating leases	(73.8)	(83.8)	(132.4)
Right-of-use assets obtained in exchange for lease obligations	$ 25.7	$ 104.9	$ 27.8
Weighted-average remaining lease term - real estate	7 years 2 months 12 days	7 years 7 months 6 days	6 years 4 months 24 days
Weighted-average discount rate - real estate leases	4.13%	3.85%	3.57%