INTEREST EXPENSE, NET (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Interest Income (Expense), Net [Abstract]
Interest expense	$ 302.5	$ 287.1	$ 219.6
Foreign exchange (gain) losses, net of derivative contracts	(7.6)	(8.5)	3.4
Interest income	(19.2)	(13.6)	(4.4)
Total interest expense, net	$ 275.7	265.0	$ 218.6
Gain related to short-term forward contracts		$ 1.4