SHARE-BASED COMPENSATION PLANS - Restricted Stock Activity (Details) - Restricted Stock - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2022
Shares
Outstanding, beginning balance (in shares)	0.7
Granted (in shares)	0.3	0.4	0.3
Settled (in shares)	(0.5)
Cancelled (in shares)	(0.5)
Outstanding, ending balance (in shares)	0.0	0.7
Vested and expected to vest (in shares)	0.0
Vested and expected to vest, aggregate intrinsic value	$ 0.0
Vested and expected to vest, weighted average remaining contractual term	0 years