Goodwill and Intangible Assets, Net (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2020		Jun. 30, 2019	Jun. 30, 2018
Indefinite Lived Intangible Assets By Major Class [Line Items]
Amortization of finite-lived intangible assets	$ 36	[1]	$ 15	$ 14
Television Segment | Operating Segments
Indefinite Lived Intangible Assets By Major Class [Line Items]
Accumulated impairment loss, goodwill	$ 371		$ 371

[1] Net of accumulated amortization of $165 million and $129 million as of June 30, 2020 and 2019, respectively. The average useful life of amortizable intangible assets ranges from three to 20 years.