Segment Information - Reconciliation of Goodwill and Intangible Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions	Dec. 31, 2020	Jun. 30, 2020
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	$ 6,226	$ 5,815
Digital Real Estate Services
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	1,779	1,555
Subscription Video Services
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	1,645	1,513
Dow Jones
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	1,716	1,722
Book Publishing
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	781	748
News Media
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	$ 305	$ 277