INCOME TAXES - Components of provision (benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Current:
Federal	$ 0.4	$ (30.0)	$ 3.7
State and local	1.1	(2.7)	3.3
Foreign	129.0	131.5	54.1
Total	130.5	98.8	61.1
Deferred:
Federal	(256.9)	(91.7)	(71.0)
State and local	(24.2)	(9.9)	(12.0)
Foreign	(108.9)	(37.6)	(4.2)
Total	(390.0)	(139.2)	(87.2)
Benefit for income taxes	$ (259.5)	$ (40.4)	$ (26.1)