INCOME TAXES - Reconciliation of Federal Statutory Tax Rate to Effective Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income (loss) from continuing operations before income taxes	$ 426.8	$ (239.8)	$ (1,467.6)
Provision (benefit) for income taxes at statutory rate	89.6	(50.4)	(308.2)
State and local taxes—net of federal benefit	(14.9)	26.3	(28.0)
Foreign tax differentials	(16.4)	(23.3)	7.2
Change in valuation allowances	(2.3)	(3.8)	7.4
Change in unrecognized tax benefit	(10.6)	(18.0)	21.3
Permanent differences—net	25.4	(13.1)	14.3
Non-deductible executive stock compensation	37.1	0.0	0.0
Dispositions of business assets	12.7	0.0	0.0
Russia exit	24.1	0.0	0.0
Goodwill impairment	0.0	0.0	26.1
Principal relocation	0.0	(234.4)	0.0
Post-divestiture restructuring	0.0	130.0	0.0
Gain on sale of business adjustment	0.0	0.0	(132.1)
Other	20.1	14.7	14.3
Provision (benefit) for income taxes on continuing operations	$ 164.8	$ (172.0)	$ (377.7)
Effective income tax rate	38.60%	71.70%	25.70%