Segment Information - Schedule of Reconciliation of Assets from Segments to Consolidated (Details) - USD ($) $ in Millions	Mar. 31, 2026	Jun. 30, 2025
Segment Reporting Information [Line Items]
Total assets	$ 21,783	$ 23,195
Investments	979	1,621
Operating Segments \| Cable Network Programming
Segment Reporting Information [Line Items]
Total assets	3,239	2,895
Operating Segments \| Television
Segment Reporting Information [Line Items]
Total assets	8,665	7,924
Corporate and Other
Segment Reporting Information [Line Items]
Total assets	$ 8,900	$ 10,755

Amount of asset recognized for present right to economic benefit.

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+ Details