INTEREST EXPENSE, NET (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Interest Income (Expense), Net [Abstract]
Interest expense	$ 68.7	$ 76.8	$ 210.5	$ 223.3
Foreign exchange losses (gains), net of derivative contracts	6.1	(0.3)	14.8	(4.1)
Interest income	(1.2)	(4.5)	(3.2)	(14.8)
Total interest expense, net	$ 73.6	$ 72.0	$ 222.1	$ 204.4