Segment Information - Schedule of Revenues and Segment EBITDA from Segments to Consolidated (Details) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting [Line Items]
Total revenues		$ 17,126	$ 16,300	$ 13,980
Amortization of cable distribution investments		0	(10)	(16)
Depreciation and amortization		(410)	(385)	(389)
Restructuring, impairment and other corporate matters		(151)	(350)	(67)
Equity losses of affiliates		(20)	(29)	(44)
Interest expense, net		(274)	(227)	(216)
Non-operating other, net		(773)	438	(47)
Income before income tax expense		2,278	3,061	2,104
Income tax expense		(551)	(768)	(550)
Net income		1,727	2,293	1,554
Less: Net income attributable to noncontrolling interests	[1]	(42)	(30)	(53)
Net income attributable to Fox Corporation stockholders		1,685	2,263	1,501
Operating Segments
Segment Reporting [Line Items]
Total revenues		17,014	16,255	13,830
Segment EBITDA		4,537	3,975	3,199
Corporate and Other
Segment Reporting [Line Items]
Total revenues		526	244	209
Segment EBITDA		(631)	(351)	(316)
Depreciation and amortization		(179)	(172)	(195)
Eliminations
Segment Reporting [Line Items]
Total revenues		(414)	(199)	(59)
Cable Network Programming | Operating Segments
Segment Reporting [Line Items]
Total revenues		7,348	6,930	5,955
Segment EBITDA		3,099	3,030	2,693
Amortization of cable distribution investments		0	10	16
Depreciation and amortization		(105)	(94)	(77)
Television | Operating Segments
Segment Reporting [Line Items]
Total revenues		9,666	9,325	7,875
Segment EBITDA		1,438	945	506
Depreciation and amortization		$ (126)	$ (119)	$ (117)

[1] Net income attributable to noncontrolling interests includes $5 million, $(1) million and $(1) million for the fiscal years ended June 30, 2026, 2025 and 2024, respectively, relating to redeemable noncontrolling interests.