DERIVATIVE INSTRUMENTS - Gains and Losses Recognized in OCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Derivative [Line Items]
Net investment hedges	$ 5.3	$ 156.4	$ 24.2	$ (191.1)
Foreign exchange forward contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	(4.7)	0.0	(3.0)	(0.4)
Interest rate swap contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	7.9	3.9	9.8	4.3
Cross-currency swap contracts
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ 0.0	$ 0.0	$ 0.0	$ (25.1)