Goodwill and Intangible Assets, Net (Schedule of Carrying Value of Goodwill, by Segment) (Details) $ in Millions	12 Months Ended
	Jun. 30, 2020 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 2,691
Acquisitions	729	[1]
Disposals	(11)	[1]
Goodwill, ending balance	3,409
Operating Segments | Cable Network Programming Segment
Goodwill [Roll Forward]
Goodwill, beginning balance	987
Acquisitions	45	[1]
Disposals	0	[1]
Goodwill, ending balance	1,032
Operating Segments | Television Segment
Goodwill [Roll Forward]
Goodwill, beginning balance	1,704
Acquisitions	462	[1]
Disposals	(11)	[1]
Goodwill, ending balance	2,155
Operating Segments | Other, Corporate and Eliminations Segment
Goodwill [Roll Forward]
Goodwill, beginning balance	0
Acquisitions	222	[1]
Disposals	0	[1]
Goodwill, ending balance	$ 222

[1] See Note 3—Acquisitions, Disposals and Other Transactions under the heading “Acquisitions and Disposals.”