Segment Information - Schedule of Reconciliation of Goodwill and Intangible Assets, Net from Segments to Consolidated (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Segment Reporting [Line Items]
Total goodwill and intangible assets, net	$ 6,517	$ 6,608
Corporate and Other
Segment Reporting [Line Items]
Total goodwill and intangible assets, net	677	682
Cable Network Programming | Operating Segments
Segment Reporting [Line Items]
Total goodwill and intangible assets, net	1,286	1,290
Television | Operating Segments
Segment Reporting [Line Items]
Total goodwill and intangible assets, net	$ 4,554	$ 4,636