INCOME TAXES - Components of Provision (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Current:
Federal	$ 0.0	$ 0.8	$ 0.2
State and local	(0.3)	8.2	9.8
Foreign	90.7	129.4	(33.9)
Total	90.4	138.4	(23.9)
Deferred:
Federal	(286.7)	(116.1)	87.7
State and local	(50.6)	(49.9)	1.3
Foreign	(130.8)	(27.2)	(97.3)
Total	(468.1)	(193.2)	(8.3)
Benefit for income taxes from continued operations	$ (377.7)	$ (54.8)	$ (32.2)