SEGMENT REPORTING - Reporting Segments (Details) $ in Millions	3 Months Ended
	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment	3
Net revenues	$ 1,124.1	$ 1,411.2
Operating (loss) income	(66.0)	64.0
Interest expense, net	62.1	63.1
Other (income) expense, net	(5.8)	2.3
Loss from continuing operations before income taxes	(122.3)	(1.4)
Operating Segments | Americas
Segment Reporting Information [Line Items]
Net revenues	470.6	488.8
Operating (loss) income	21.3	(17.5)
Operating Segments | EMEA
Segment Reporting Information [Line Items]
Net revenues	530.4	676.7
Operating (loss) income	13.0	28.2
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Net revenues	123.1	190.2
Operating (loss) income	(19.0)	8.5
Other
Segment Reporting Information [Line Items]
Net revenues	0.0	55.5
Operating (loss) income	0.0	(10.9)
Corporate
Segment Reporting Information [Line Items]
Operating (loss) income	$ (81.3)	$ 55.7