Segment Information - Reconciliation of Revenues and Segment EBITDA from Segments to Consolidated (Detail) - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2021	Sep. 30, 2020
Segment Reporting Information [Line Items]
Revenues		$ 3,045	$ 2,717
Amortization of cable distribution investments		(5)	(5)
Depreciation and amortization		(79)	(68)
Impairment and restructuring charges		0	(35)
Interest expense, net		(97)	(98)
Other, net		69	519
Income before income tax expense		952	1,479
Income tax expense		(244)	(362)
Net income		708	1,117
Less: Net income attributable to noncontrolling interests	[1]	(7)	(11)
Net income attributable to Fox Corporation stockholders		701	1,106
Operating Segments | Cable Network Programming
Segment Reporting Information [Line Items]
Revenues		1,416	1,325
Segment EBITDA		774	781
Depreciation and amortization		(10)	(13)
Operating Segments | Television
Segment Reporting Information [Line Items]
Revenues		1,581	1,350
Segment EBITDA		359	457
Depreciation and amortization		(26)	(25)
Operating Segments | Other, Corporate and Eliminations
Segment Reporting Information [Line Items]
Revenues		48	42
Segment EBITDA		(69)	(72)
Depreciation and amortization		$ (43)	$ (30)

[1] Net income attributable to noncontrolling interests includes $(1) million and $4 million for the three months ended September 30, 2021 and 2020, respectively, relating to redeemable noncontrolling interests.