Segment Information - Reconciliation of Assets from Segments to Consolidated (Detail) - USD ($) $ in Millions		Dec. 31, 2016	Jun. 30, 2016
Segment Reporting, Asset Reconciling Item [Line Items]
Investments		$ 1,932	$ 2,270
Total assets		14,527	15,483
News and Information Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		6,527	6,728
Book Publishing [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		1,870	1,855
Digital Real Estate Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		2,203	2,158
Cable Network Programming [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets		1,093	1,101
Other [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	[1]	$ 902	$ 1,371

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