Segment Information - Reconciliation of Assets from Segment to Consolidated (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Jun. 30, 2014
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 15,970	$ 16,489
Investments [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,466	2,609
News and Information Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	7,001	7,379
Book Publishing [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	2,065	1,852
Cable Network Programming [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,212	1,427
Digital Real Estate Services [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	1,320	438
Digital Education [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	504	481
Other [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 1,402	$ 2,303