INCOME TAXES - Reconciliation of Federal Statutory Tax Rate to Effective Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income (loss) from continuing operations before income taxes	$ 704.8	$ 426.8	$ (239.8)
Provision (benefit) for income taxes at statutory rate	148.0	89.6	(50.4)
State and local taxes—net of federal benefit	2.8	(14.9)	26.3
Foreign tax differentials	(10.1)	(16.4)	(23.3)
Change in valuation allowances	10.2	(2.3)	(3.8)
Change in unrecognized tax benefit	32.5	(10.6)	(18.0)
Permanent differences—net	(4.9)	25.4	(13.1)
Non-deductible executive stock compensation	27.7	37.1	0.0
Currency Loss	(13.6)	(0.2)	0.0
Dispositions of business assets	0.0	12.7	0.0
Russia exit	(7.0)	24.1	0.0
Principal relocation	0.0	0.0	(234.4)
Post-divestiture restructuring	0.0	0.0	130.0
Other	(4.0)	20.3	14.7
Provision (benefit) for income taxes on continuing operations	$ 181.6	$ 164.8	$ (172.0)
Effective income tax rate	25.80%	38.60%	71.70%