INCOME TAXES - Components of Provision (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Current:
Federal	$ 3.8	$ 0.0	$ 0.8
State and local	14.9	(0.3)	8.2
Foreign	55.2	90.7	129.4
Total	73.9	90.4	138.4
Deferred:
Federal	41.1	(286.7)	(116.1)
State and local	5.4	(50.6)	(49.9)
Foreign	(292.4)	(130.8)	(27.2)
Total	(245.9)	(468.1)	(193.2)
Benefit for income taxes from continued operations	$ (172.0)	$ (377.7)	$ (54.8)