Segment Information - Reconciliation of Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions		Jun. 30, 2018	Jun. 30, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Investments		$ 393	$ 2,027
Total assets		16,346	14,552
News and Information Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		6,039	6,142
Book Publishing [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		1,898	1,845
Digital Real Estate Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		2,171	2,307
Subscription Video Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		4,738	1,194
Other [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	[1]	$ 1,107	$ 1,037

[1] The Other segment primarily includes Cash and cash equivalents.