SHARE-BASED COMPENSATION PLANS - Outstanding Non-qualified Stock Options Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Shares
Outstanding, beginning balance (in shares)	12.0
Granted (in shares)	5.9	9.3
Exercised (in shares)	(2.3)
Forfeited or expired (in shares)	(2.2)
Outstanding, ending balance (in shares)	13.4	12.0
Vested and expected to vest (in shares)	10.5
Exercisable (in shares)	1.7
Weighted Average Exercise Price
Outstanding, weighted average exercise price, beginning balance (in dollars per share)	$ 15.64
Granted (in dollars per share)	16.86
Exercised (in dollars per share)	9.76
Forfeited or expired (in dollars per share)	18.45
Outstanding, weighted average exercise price, ending balance (in dollars per share)	16.75	$ 15.64
Vested and expected to vest (in dollars per share)	16.63
Exercisable (in dollars per share)	$ 9.71
Aggregate Intrinsic Value and Weighted Average Remaining Contractual Term
Vested and expected to vest, aggregate intrinsic value	$ 0.0
Exercisable, aggregate intrinsic value	$ 7.4
Vested and expected to vest, weighted average remaining contractual term	7 years 8 months 23 days
Exercisable, weighted average remaining contractual term	1 year 11 months 16 days