Segment Information - Reconciliation of Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions	Dec. 31, 2022	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total assets	$ 23,126	$ 22,185
Investments	772	578
Cable Network Programming
Segment Reporting Information [Line Items]
Total assets	2,753	2,682
Television
Segment Reporting Information [Line Items]
Total assets	9,493	7,915
Other, Corporate and Eliminations
Segment Reporting Information [Line Items]
Total assets	$ 10,108	$ 11,010