Segment Reporting (Reconciliation from Segment Adjusted EBITDA to Net Loss from Continuing Operations) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting [Abstract]
Total Segment Adjusted EBITDA	$ 282.0	$ 242.8	$ 806.0	$ 677.1
Interest expense	(63.0)	(57.7)	(170.0)	(162.7)
Depreciation and amortization expense	(155.7)	(137.2)	(425.6)	(368.0)
Transaction costs	(8.4)	(14.2)	(17.6)	(17.5)
Stock-based compensation	(26.5)	(33.5)	(93.0)	(122.5)
Loss on extinguishment of debt	(4.5)		(4.5)
Foreign currency gain/(loss) on intercompany loans	3.9	(11.1)	(24.7)	(28.9)
Non-cash loss on investments	(0.2)	(0.6)	(0.7)	(1.2)
Income/(loss) from operations before income taxes	$ 27.6	$ (11.5)	$ 69.9	$ (23.7)