Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2021	Jun. 30, 2020
Class A Common Stock
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	1,500,000,000	1,500,000,000
Common stock, shares issued, net of treasury stock	391,154,191	388,922,752
Common stock outstanding, net of treasury stock	391,154,191	388,922,752
Common stock, treasury shares	27,368,413	27,368,413
Class B Common Stock
Common stock, par value (in dollars per share)	$ 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