Cover - USD ($) $ in Billions	12 Months Ended
Cover - USD ($) $ in Billions	Jun. 30, 2025	Aug. 01, 2025	Dec. 31, 2024
Document And Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Current Fiscal Year End Date	--06-30
Document Period End Date	Jun. 30, 2025
Document Transition Report	false
Entity File Number	001-38776
Entity Registrant Name	FOX CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-1825597
Entity Address, Address Line One	1211 Avenue of the Americas
Entity Address, City or Town	New York,
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10036
City Area Code	212
Local Phone Number	852-7000
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction	false
Entity Shell Company	false
Documents Incorporated by Reference	Certain information required for Part III of this Annual Report on Form 10-K is incorporated by reference to the Fox Corporation definitive Proxy Statement for its 2024 Annual Meeting of Stockholders, which is intended to be filed with the Securities and Exchange Commission pursuant to Regulation 14A of the Securities Exchange Act of 1934, as amended, within 120 days of Fox Corporation’s fiscal year end.
Amendment Flag	false
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Entity Central Index Key	0001754301
Class A Common Stock
Document And Entity Information [Line Items]
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Trading Symbol	FOXA
Security Exchange Name	NASDAQ
Entity Public Float			$ 10.5
Entity Common Stock, Shares Outstanding		209,954,934
Class B Common Stock
Document And Entity Information [Line Items]
Title of 12(b) Security	Class B Common Stock, par value $0.01 per share
Trading Symbol	FOX
Security Exchange Name	NASDAQ
Entity Public Float			$ 6.0
Entity Common Stock, Shares Outstanding		235,581,025