Segment Information - Reconciliation of Goodwill and Intangible Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions	Sep. 30, 2020	Jun. 30, 2020
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	$ 5,866	$ 5,815
Digital Real Estate Services
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	1,567	1,555
Subscription Video Services
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	1,535	1,513
Dow Jones
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	1,719	1,722
Book Publishing
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	760	748
News Media
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	$ 285	$ 277