Goodwill and Intangible Assets, Net - Changes in Carrying Values of Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning	$ 2,892	$ 2,892
Intangible assets not subject to amortization, acquisitions	0	0
Intangible assets not subject to amortization, ending	2,892	2,892	$ 2,892
Finite-lived Intangible Assets [Roll Forward]
Amortizable intangible assets, net, beginning	262	306
Amortizable intangible assets, net, acquisitions	71	19
Amortizable intangible assets, net, amortization	(66)	(63)	(36)
Amortizable intangible assets, net, amortization	(68)
Amortizable intangible assets, net, ending	265	262	306
Total Intangible Assets, Net [Roll Forward]
Total intangible assets, net, beginning	3,154	3,198
Total intangible assets, net, acquisitions	71	19
Total intangible assets, net, amortization	(66)	(63)	(36)
Total intangible assets, net, amortization	(68)
Total intangible assets, net, ending	3,157	3,154	3,198
Accumulated amortization of amortizable intangible assets	292	226
FCC licenses
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning	2,250	2,250
Intangible assets not subject to amortization, acquisitions	0	0
Intangible assets not subject to amortization, ending	2,250	2,250	2,250
Other
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning	642	642
Intangible assets not subject to amortization, acquisitions	0	0
Intangible assets not subject to amortization, ending	$ 642	$ 642	$ 642