CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2020	Jun. 30, 2019
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Treasury stock, shares	226,588,577	222,120,630
Common Class A
Common stock, shares authorized	1,300,000,000	1,300,000,000
Common stock, shares issued	451,339,096	443,685,124
Common Class B
Common stock, shares authorized	304,000,000	304,000,000
Common stock, shares issued	135,235,429	139,537,814
Common stock, shares outstanding	135,235,429	139,537,814