Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2020	Jun. 30, 2019
Class A Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,500,000,000	1,500,000,000
Common stock, shares issued, net of treasury stock	388,843,519	385,580,015
Common stock outstanding, net of treasury stock	388,843,519	385,580,015
Common stock, treasury shares	27,368,413	27,368,413
Class B Common Stock [Member]
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued, net of treasury stock	199,630,240	199,630,240
Common stock outstanding, net of treasury stock	199,630,240	199,630,240
Common stock, treasury shares	78,430,424	78,430,424