Segment Reporting (Reconciliation from Segment Adjusted EBITDA to Net Loss from Continuing Operations) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting [Abstract]
Total Segment Adjusted EBITDA	$ 263.4	$ 218.9	$ 524.0	$ 434.3
Interest expense	(53.7)	(51.2)	(107.0)	(105.0)
Depreciation and amortization expense	(131.4)	(113.7)	(269.9)	(230.8)
Transaction costs	(6.2)	(3.3)	(9.2)	(3.3)
Stock-based compensation	(34.5)	(42.9)	(66.5)	(89.0)
Foreign currency loss on intercompany loans	(17.4)	(7.1)	(28.6)	(17.8)
Non-cash loss on investments	(0.2)	(0.4)	(0.5)	(0.6)
Income/(loss) from operations before income taxes	$ 20.0	$ 0.3	$ 42.3	$ (12.2)