Segment Information - Reconciliation of Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions	Mar. 31, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Total assets	$ 22,396	$ 22,185
Investments	954	578
Cable Network Programming
Segment Reporting Information [Line Items]
Total assets	2,763	2,682
Television
Segment Reporting Information [Line Items]
Total assets	8,337	7,915
Other, Corporate and Eliminations
Segment Reporting Information [Line Items]
Total assets	$ 10,342	$ 11,010