Goodwill and Other Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Intangible Assets And Goodwill [Line Items]
Impairment charges		$ 96	$ 280	$ 785
Amortization expense of amortizable intangible assets		126	100	91
Finite lived intangible assets, Estimated amortization expense in 2020		112
Finite lived intangible assets, Estimated amortization expense in 2021		105
Finite lived intangible assets, Estimated amortization expense in 2022		101
Finite lived intangible assets, Estimated amortization expense in 2023		94
Finite lived intangible assets, Estimated amortization expense in 2024		89
Non-cash impairment of goodwill and indefinite-lived intangible assets		87	$ 43	88
Long-term growth rates			(1.90%)
Non-cash impairment of goodwill	$ 41	$ 49	$ 218	$ 48
News America Marketing [Member]
Intangible Assets And Goodwill [Line Items]
Non-cash impairment of goodwill and indefinite-lived intangible assets			$ 165
Royalty rates			2.50%
Non-cash impairment of goodwill	120
Fox Sports Australia Reporting Unit [Member]
Intangible Assets And Goodwill [Line Items]
Non-cash impairment of goodwill and indefinite-lived intangible assets	41
Discount rates			9.50%
Long-term growth rates			2.00%
Non-cash impairment of goodwill	$ 41
Other Than Impaired Reporting Units [Member]
Intangible Assets And Goodwill [Line Items]
Control premium			10.00%
Minimum [Member] | News America Marketing [Member]
Intangible Assets And Goodwill [Line Items]
Discount rates			12.50%
Minimum [Member] | Other Than Impaired Reporting Units [Member]
Intangible Assets And Goodwill [Line Items]
Discount rates		9.00%	8.50%	9.00%
Long-term growth rates		0.00%	(1.00%)	0.00%
Control premium		5.00%		10.00%
Royalty rates		0.50%	0.50%	0.50%
Maximum [Member] | News America Marketing [Member]
Intangible Assets And Goodwill [Line Items]
Discount rates			14.00%
Long-term growth rates			0.90%
Maximum [Member] | Other Than Impaired Reporting Units [Member]
Intangible Assets And Goodwill [Line Items]
Discount rates		25.00%	25.00%	25.00%
Long-term growth rates		3.00%	3.00%	3.30%
Control premium		10.00%		15.00%
Royalty rates		6.00%	7.50%	7.50%
News and Information Services Segment [Member]
Intangible Assets And Goodwill [Line Items]
Accumulated impairment loss, goodwill		$ 3,700
Non-cash impairment of goodwill		49	$ 158
Intangible Assets and Goodwill [Member]
Intangible Assets And Goodwill [Line Items]
Impairment charges		$ 47	$ 50	$ 58