Goodwill and Intangible Assets, Net - Schedule of Changes in Carrying Values of Intangible Assets and Related Accumulated Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning	$ 2,892	$ 2,892
Intangible assets not subject to amortization, ending	2,892	2,892
Finite-lived Intangible Assets [Roll Forward]
Amortizable intangible assets, net, beginning	192	265
Amortizable intangible assets, net, amortization and other	(46)	(73)
Amortizable intangible assets, net, ending	146	192
Total Intangible Assets, Net [Roll Forward]
Total intangible assets, net, beginning	3,084	3,157
Total intangible assets, net, amortization and other	(46)	(73)
Total intangible assets, net, ending	3,038	3,084
Accumulated amortization of amortizable intangible assets	405	366
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, ending	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, ending	$ 642	$ 642