Goodwill and Intangible Assets, Net - Schedule of Carrying Value of Goodwill, by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 3,559	$ 3,554
Acquisitions and other		5
Other	(15)
Goodwill, ending balance	3,544	3,559
Operating Segments | Cable Network Programming
Goodwill [Roll Forward]
Goodwill, beginning balance	1,059	1,059
Acquisitions and other		0
Other	(15)
Goodwill, ending balance	1,044	1,059
Operating Segments | Television
Goodwill [Roll Forward]
Goodwill, beginning balance	2,246	2,241
Acquisitions and other		5
Other	0
Goodwill, ending balance	2,246	2,246
Corporate and Other
Goodwill [Roll Forward]
Goodwill, beginning balance	254	254
Acquisitions and other		0
Other	0
Goodwill, ending balance	$ 254	$ 254