Acquisitions, Disposals and Other Transactions - Additional Information (Detail) $ in Millions, $ in Millions		1 Months Ended							12 Months Ended
	May 05, 2020 USD ($)	Aug. 10, 2021	Jun. 30, 2021 USD ($)	Jun. 30, 2021 AUD ($)	May 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Jan. 31, 2020 GBP (£)	Oct. 31, 2018 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2021 AUD ($)	Nov. 30, 2020
Schedule Of Business Acquisitions And Divestitures [Line Items]
Goodwill			$ 4,653						$ 4,653	$ 3,951	$ 5,147
Previously held equity interest						$ 15
(Loss) income before income tax expense									450	(1,524)	354
ReaGroup Limited
Schedule Of Business Acquisitions And Divestitures [Line Items]
Dilution of ownership interest						0.20%
Ownership percentage after all transactions						61.40%
Nonoperating Income (Expense)
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition recognized gain resulting from remeasurement of previously held equity interest						$ 7			$ 7	0	0
Elara
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets						19
Goodwill						$ 113
Increase in equity interest in acquiree						39.00%							22.10%
Tangible liabilities						$ 5
Business acquisition purchase price allocation, amortizable and indefinite-lived intangible assets						31
Elara | Subsequent Event
Schedule Of Business Acquisitions And Divestitures [Line Items]
Equity method investment, ownership percentage		34.30%
Elara | Trade Names
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, indefinite-lived intangible assets						$ 12
Elara | ReaGroup Limited
Schedule Of Business Acquisitions And Divestitures [Line Items]
Increase in equity interest in acquiree						0.80%
Maximum
Schedule Of Business Acquisitions And Divestitures [Line Items]
Purchased technology, weighted average useful life									50 years
Equity method investment, ownership percentage			50.00%						50.00%			50.00%
Minimum
Schedule Of Business Acquisitions And Divestitures [Line Items]
Purchased technology, weighted average useful life									2 years
Equity method investment, ownership percentage			20.00%						20.00%			20.00%
News America Marketing
Schedule Of Business Acquisitions And Divestitures [Line Items]
Cash consideration receivable	$ 235
Cash at closing	$ 50
(Loss) income before income tax expense										$ (416)	$ 22
News America Marketing | Common Stock
Schedule Of Business Acquisitions And Divestitures [Line Items]
Ownership interest after disposal	5.00%
News America Marketing | Warrant
Schedule Of Business Acquisitions And Divestitures [Line Items]
Warrant to purchase ownership interest	10.00%
News America Marketing | Maximum
Schedule Of Business Acquisitions And Divestitures [Line Items]
Deferred cash payments	$ 185
News America Marketing | Minimum
Schedule Of Business Acquisitions And Divestitures [Line Items]
Deferred cash payments	$ 125
Unruly
Schedule Of Business Acquisitions And Divestitures [Line Items]
Ownership percentage							7.00%
Lock up period							18 months
Commercial arrangement period							3 years
Total minimum revenue guarantee | £							£ 30,000,000
Avail
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity, cash paid						$ 36
Cash acquired						4
Contingent consideration						$ 8
Performance objective period						3 years
Contingent consideration liability						$ 4
Post-closing claims						6
Goodwill						32
Investor's Business Daily
Schedule Of Business Acquisitions And Divestitures [Line Items]
Goodwill					$ 166
Consideration transferred					275
Business acquisition purchase price allocation, amortizable and indefinite-lived intangible assets					123
Business acquisition purchase price allocation, indefinite-lived intangible assets					51
Deferred revenue			$ 16		16				$ 16
Houghton Mifflin Harcourt Books and Media
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity, cash paid					349
Goodwill					119
Business acquisition purchase price allocation, amortizable and indefinite-lived intangible assets					141
Business combination purchase price allocation, receivables					89
Opcity
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity, cash paid								$ 182
Cash acquired								7
Goodwill								124
Consideration transferred								210
Deferred compensation related to business acquisition								$ 28
Acquisition cost recognized as compensation expense, period for recognition								3 years
Total assets acquired								$ 73
Mortgage Choice Limited | REA Group
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity, cash paid			183	$ 244
Goodwill			79						79			$ 104
Business acquisition purchase price allocation, amortizable and indefinite-lived intangible assets			56						56			74
Business acquisition purchase price allocation, indefinite-lived intangible assets			8						8			11
Net assets acquired			50						50			66
Elara
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity, cash paid						69
Consideration transferred						138
Previously held equity interest						22
Minority interest value						$ 37
Elara | ReaGroup Limited
Schedule Of Business Acquisitions And Divestitures [Line Items]
Equity interest in acquiree						59.70%
Elara | ReaGroup Limited | Subsequent Event
Schedule Of Business Acquisitions And Divestitures [Line Items]
Ownership percentage after all transactions		65.50%
Elara | Elara | ReaGroup Limited
Schedule Of Business Acquisitions And Divestitures [Line Items]
Equity interest in acquiree													13.50%
Purchased technology | Opcity
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, purchased technology amount								$ 49
Purchased technology, weighted average useful life								12 years
Subscriber Relationships | Investor's Business Daily
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets					$ 43
Finite lived intangible assets, weighted average useful life					7 years
Leads and Customer Relationships | Opcity
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets								$ 24
Finite lived intangible assets, weighted average useful life								9 years
Technology | Elara
Schedule Of Business Acquisitions And Divestitures [Line Items]
Finite lived intangible assets, weighted average useful life						5 years
Technology | Avail
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets						$ 7
Finite lived intangible assets, weighted average useful life						5 years
Technology | Investor's Business Daily
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets					$ 20
Finite lived intangible assets, weighted average useful life					7 years
Backlist Titles | Houghton Mifflin Harcourt Books and Media
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets					$ 104
Finite lived intangible assets, weighted average useful life					9 years
Publishing Licenses | Houghton Mifflin Harcourt Books and Media
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets					$ 32
Finite lived intangible assets, weighted average useful life					9 years
Computer Software | Mortgage Choice Limited | REA Group
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets			$ 13						13			17
Computer Software | Mortgage Choice Limited | Maximum | REA Group
Schedule Of Business Acquisitions And Divestitures [Line Items]
Finite lived intangible assets, weighted average useful life			5 years	5 years
Computer Software | Mortgage Choice Limited | Minimum | REA Group
Schedule Of Business Acquisitions And Divestitures [Line Items]
Finite lived intangible assets, weighted average useful life			1 year	1 year
Franchise Rights | Mortgage Choice Limited | REA Group
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition purchase price allocation, amortizable intangible assets			$ 35						$ 35			$ 46
Finite lived intangible assets, weighted average useful life			17 years	17 years