DERIVATIVE INSTRUMENTS - Derivatives Not Designated as Hedging (Details) - Not Designated as Hedging Instrument - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Selling, general and administrative expenses
Derivative [Line Items]
Gain (loss) on derivatives, net	$ 0.1	$ 0.3	$ 0.1	$ (0.9)
Interest expense, net
Derivative [Line Items]
Gain (loss) on derivatives, net	(5.6)	5.0	(1.6)	13.1
Other expense, net
Derivative [Line Items]
Gain (loss) on derivatives, net	$ 0.1	$ (0.2)	$ 1.4	$ 0.0