Segment Information - Schedule of Reconciliation of Assets from Segments to Consolidated (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025
Assets
Investments	$ 965	$ 1,621
Total assets	22,482	23,195
Corporate and Other
Assets
Total assets	9,472	10,755
Cable Network Programming | Operating Segments
Assets
Total assets	3,216	2,895
Television | Operating Segments
Assets
Total assets	$ 8,829	$ 7,924