LEASES - Lease Cost (Details) $ in Millions	12 Months Ended
	Jun. 30, 2020 USD ($)
Lease Cost:
Operating lease cost	$ 97.0
Short-term lease cost	2.3
Variable lease cost	53.4
Sublease income	(4.8)
Net lease cost	147.9
Other information:
Operating cash outflows from operating leases	(100.9)
Right-of-use assets obtained in exchange for lease obligations	$ 6.3
Weighted-average remaining lease term - real estate	6 years 10 months 24 days
Weighted-average discount rate - real estate leases	3.09%