Segment Information - Summary of Revenues by Segment by Component to Consolidated (Detail) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Disaggregation Of Revenue [Line Items]
Revenues	$ 3,192	$ 3,045
Cable Network Programming
Disaggregation Of Revenue [Line Items]
Revenues	1,431	1,416
Cable Network Programming | Affiliate fee
Disaggregation Of Revenue [Line Items]
Revenues	1,029	1,026
Cable Network Programming | Advertising
Disaggregation Of Revenue [Line Items]
Revenues	316	311
Cable Network Programming | Other
Disaggregation Of Revenue [Line Items]
Revenues	86	79
Television
Disaggregation Of Revenue [Line Items]
Revenues	1,714	1,581
Television | Affiliate fee
Disaggregation Of Revenue [Line Items]
Revenues	682	641
Television | Advertising
Disaggregation Of Revenue [Line Items]
Revenues	905	819
Television | Other
Disaggregation Of Revenue [Line Items]
Revenues	127	121
Other, Corporate and Eliminations
Disaggregation Of Revenue [Line Items]
Revenues	$ 47	$ 48