SHARE-BASED COMPENSATION PLANS - Restricted Share Units Activity (Details) - Restricted Stock Units shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2019 USD ($) shares
Shares
Outstanding, beginning balance (in shares)	7.5
Granted (in shares)	7.0
Settled (in shares)	(0.6)
Cancelled (in shares)	(3.4)
Outstanding, ending balance (in shares)	10.5
Vested and expected to vest (in shares)	8.6
Vested and expected to vest, aggregate intrinsic value | $	$ 114.4
Vested and expected to vest, weighted average remaining contractual term	2 years 1 month 28 days