SHARE-BASED COMPENSATION PLANS - Outstanding and Nonvested Restricted Share Units Activity (Details) - Restricted Stock Units shares in Millions	12 Months Ended
	Jun. 30, 2021 $ / shares shares
Shares
Outstanding, beginning balance (in shares) | shares	11.6
Granted (in shares) | shares	38.4
Vested (in shares) | shares	(2.5)
Cancelled (in shares) | shares	(3.6)
Outstanding, ending balance (in shares) | shares	43.9
Weighted Average Grant Date Fair Value
Outstanding and nonvested, beginning balance (in dollars per share) | $ / shares	$ 12.48
Granted (in dollars per share) | $ / shares	8.08
Vested (in dollars per share) | $ / shares	13.33
Cancelled (in dollars per share) | $ / shares	10.92
Outstanding and nonvested, ending balance (in dollars per share) | $ / shares	$ 8.78