Inventories, Net - Schedule of Amortization (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Inventory Disclosure [Abstract]
Total amortization expense	$ 1,913	$ 1,134	$ 5,801	$ 4,596

Entertainment License Agreement For Program Material Including Sports Rights Advances Amortization And Film Monetized On Its Own Amortization

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Name:	fox_EntertainmentLicenseAgreementForProgramMaterialIncludingSportsRightsAdvancesAmortizationAndFilmMonetizedOnItsOwnAmortization
Namespace Prefix:	fox_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration