COMMON STOCK - Narrative (Details)					12 Months Ended
	Aug. 19, 2020 $ / shares	Feb. 05, 2020 $ / shares	Oct. 30, 2019 $ / shares	Aug. 16, 2019 $ / shares	Jun. 30, 2020 vote $ / shares shares	Jun. 30, 2019 $ / shares shares	Jun. 30, 2018 $ / shares
Class of Stock
Common stock, par value (in dollars per share)					$ 0.01	$ 0.01
Cash dividends declared per common share (in dollars per share)					$ 1.39	$ 1.67	$ 1.48
Common Class A
Class of Stock
Common stock, shares authorized | shares					1,300,000,000	1,300,000,000
Common stock, par value (in dollars per share)					$ 0.01
Common stock, votes per share | vote					1
Remaining authorized share repurchase balance (in shares) | shares					34,700,000
Cash dividends declared per common share (in dollars per share)		$ 0.48	$ 0.48	$ 0.43
Common Class A | Subsequent Event
Class of Stock
Cash dividends declared per common share (in dollars per share)	$ 0.48
Common Class B
Class of Stock
Common stock, shares authorized | shares					304,000,000	304,000,000
Common stock, par value (in dollars per share)					$ 0.01
Common stock, votes per share | vote					10
Cash dividends declared per common share (in dollars per share)		$ 0.48	$ 0.48	$ 0.43
Common Class B | Subsequent Event
Class of Stock
Cash dividends declared per common share (in dollars per share)	$ 0.48