INTEREST EXPENSE, NET (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Interest Income (Expense), Net [Abstract]
Interest expense	$ 75.5	$ 59.0	$ 212.5	$ 157.9
Foreign exchange losses (gains), net of derivative contracts	0.6	2.6	(5.3)	3.8
Interest income	(3.5)	(0.8)	(7.9)	(2.6)
Total interest expense, net	$ 72.6	$ 60.8	$ 199.3	$ 159.1