Segment Information - Reconciliation of Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total assets	$ 22,424	$ 22,185
Investments	649	578
Cable Network Programming
Segment Reporting Information [Line Items]
Total assets	2,692	2,682
Television
Segment Reporting Information [Line Items]
Total assets	8,448	7,915
Other, Corporate and Eliminations
Segment Reporting Information [Line Items]
Total assets	$ 10,635	$ 11,010