Segment Information - Reconciliation of Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Jun. 30, 2021
Segment Reporting, Asset Reconciling Item [Line Items]
Investments	$ 505	$ 351
Total assets	16,520	16,771
Digital Real Estate Services
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	3,050	3,146
Subscription Video Services
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	3,334	3,515
Dow Jones
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,845	2,798
Book Publishing
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,837	2,713
News Media
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,106	2,209
Other
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 1,843	$ 2,039