SEGMENT REPORTING - Reporting Segments (Details) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2017 USD ($) segment	Dec. 31, 2016 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment			3
Number of operating segments | segment			3
Net revenues	$ 2,637.6	$ 2,296.7	$ 4,875.9	$ 3,376.9
Operating income (loss)	174.4	(12.7)	203.1	33.7
Interest expense, net	60.3	57.9	126.7	98.3
Other expense (income), net	3.4	(0.6)	7.1	0.7
Income (loss) before income taxes	110.7	(70.0)	69.3	(65.3)
Luxury
Segment Reporting Information [Line Items]
Net revenues	951.2	835.0	1,715.6	1,284.0
Consumer Beauty
Segment Reporting Information [Line Items]
Net revenues	1,138.6	1,001.7	2,182.0	1,573.6
Professional Beauty
Segment Reporting Information [Line Items]
Net revenues	547.8	460.0	978.3	519.3
Operating Segments | Luxury
Segment Reporting Information [Line Items]
Operating income (loss)	85.1	66.6	141.8	142.7
Operating Segments | Consumer Beauty
Segment Reporting Information [Line Items]
Operating income (loss)	99.3	62.9	161.2	115.6
Operating Segments | Professional Beauty
Segment Reporting Information [Line Items]
Operating income (loss)	73.5	83.3	71.8	99.7
Corporate
Segment Reporting Information [Line Items]
Operating income (loss)	$ (83.5)	$ (225.5)	$ (171.7)	$ (324.3)