SHARE-BASED COMPENSATION PLANS - Restricted Stock Narrative (Details) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total share-based compensation expense	$ 137.6	$ 197.8	$ 28.4
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	0.4	0.3	0.0
Total share-based compensation expense	$ 2.7	$ 1.8	$ 1.0
Total intrinsic value of restricted shares vested and settled	$ 2.6	$ 1.7