SEGMENT REPORTING (Reconciliation from Segment Adjusted EBITDA to Net Loss from Continuing Operations) (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
SEGMENT REPORTING
Total Segment Adjusted EBITDA	$ 319.4	$ 316.4
Interest expense	(82.2)	(73.6)
Depreciation and amortization expense	(167.8)	(183.8)
Transaction costs	(0.7)	(8.3)
Stock-based compensation	(26.7)	(27.8)
Loss on extinguishment of debt		(4.9)
Foreign currency gain/(loss) on intercompany loans	(4.6)	10.8
Gain on business disposition	5.5
Non-cash loss on investments	(0.3)	(0.1)
Income/(loss) from operations before income taxes	$ 42.6	$ 28.7