Segment Information - Reconciliation of Goodwill and Intangible Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions	Dec. 31, 2018	Jun. 30, 2018
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	$ 7,796	$ 7,889
News and Information Services [Member]
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	2,737	2,730
Subscription Video Services [Member]
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	2,684	2,853
Book Publishing [Member]
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	773	804
Digital Real Estate Services [Member]
Segment Reporting Information [Line Items]
Total Goodwill and intangible assets, net	$ 1,602	$ 1,502