Segment Information - Schedule of Reconciliation of Assets from Segments to Consolidated (Details) - USD ($) $ in Millions	Jun. 30, 2024	Jun. 30, 2023
Segment Reporting Information [Line Items]
Total assets	$ 21,972	$ 21,866
Investments	1,129	1,034
Corporate and Other
Segment Reporting Information [Line Items]
Total assets	10,090	10,371
Cable Network Programming | Operating Segments
Segment Reporting Information [Line Items]
Total assets	2,792	2,658
Television | Operating Segments
Segment Reporting Information [Line Items]
Total assets	$ 7,961	$ 7,803