Investments - Schedule of Investments (Detail) In Millions, unless otherwise specified	Mar. 31, 2014 USD ($)	Jun. 30, 2013 USD ($)	Mar. 31, 2014 Foxtel [Member] USD ($)		Jun. 30, 2013 Foxtel [Member] USD ($)		Nov. 30, 2012 Foxtel [Member]	Mar. 31, 2014 Other Equity Method Investments [Member] USD ($)	Jun. 30, 2013 Other Equity Method Investments [Member] USD ($)	Mar. 31, 2014 Loan Receivable from Foxtel [Member] USD ($)		Mar. 31, 2014 Loan Receivable from Foxtel [Member] AUD	Jun. 30, 2013 Loan Receivable from Foxtel [Member] USD ($)		Jun. 30, 2013 Loan Receivable from Foxtel [Member] AUD	Mar. 31, 2014 China Broadband Capital Partners L.P. funds I and II [Member] USD ($)	Jun. 30, 2013 China Broadband Capital Partners L.P. funds I and II [Member] USD ($)	Mar. 31, 2014 China Broadband Capital Partners L.P. funds I and II [Member] Approximate [Member]	Mar. 31, 2014 The Rubicon Project [Member] USD ($)		Jun. 30, 2013 The Rubicon Project [Member] USD ($)		Mar. 31, 2014 SEEK Asia Limited [Member] USD ($)		Jun. 30, 2013 SEEK Asia Limited [Member] USD ($)		Mar. 31, 2014 Other Investments [Member] USD ($)	Jun. 30, 2013 Other Investments [Member] USD ($)
Schedule of Investments [Line Items]
Equity method investments			$ 1,913	[1]	$ 1,875	[1]		$ 34	$ 35
Other investments										417	[2]	451	412	[2]	451												42	41
Cost method investments																67	59		40	[3]	40	[3]	38	[4]	37	[4]
Total Investments	$ 2,551	$ 2,499
Equity method investment, ownership percentage			50.00%				50.00%
Investment ownership percentage																		20.00%	19.30%				12.10%

[1] For the nine months ended March 31, 2014 and 2013, the Company received dividends from Foxtel of $46 million and $57 million, respectively.

[2] In May 2012, Foxtel purchased Austar United Communications Ltd. The transaction was funded by Foxtel bank debt and Foxtel's shareholders made pro-rata capital contributions in the form of subordinated shareholder notes based on their respective ownership interests. The Company's share of the subordinated shareholder notes was approximately A$451 million ($417 million and $412 million as of March 31, 2014 and June 30, 2013, respectively). The subordinated shareholder note can be repaid beginning in July 2022 provided that Foxtel's senior debt has been repaid. The subordinated shareholder note has a maturity date of July 15, 2027, with interest of 12% payable on June 30 each year and at maturity. Upon maturity, the principal advanced will be repayable.

[3] In April 2014, The Rubicon Project ("Rubicon"), in which the Company owned approximately 5.6 million shares as of March 31, 2014, completed an initial public offering of its common stock. The Company sold approximately 850 thousand shares as part of the public offering which resulted in a gain on sale of $6 million and reduced the Company's ownership percentage to 13.7%. Prior to the public offering, the Company's investment in Rubicon was recorded in the Balance Sheets at cost. As a result of the offering, the Company's remaining investment in Rubicon will be designated as an available-for-sale security as of April 2014, and carried at fair value. Unrealized gains and losses from available-for-sale securities are reported as a component of accumulated other comprehensive income, net of tax, in stockholders' equity. While the Rubicon investment is classified as an available-for-sale security, the Company is contractually restricted from selling these shares for at least six months from the date of the public offering.

[4] In February 2014, SEEKAsia Limited ("SEEK Asia") agreed to purchase the online employment businesses of JobStreet Corporation Berhad ("JobStreet"), which will be combined with JobsDB, Inc., SEEK Asia's existing online employment business. The transaction, which is subject to certain conditions, including regulatory approval and JobStreet shareholder approval, will be funded primarily through additional contributions by SEEK Asia shareholders. The Company's share of the funding contribution is expected to be approximately $50 million and is subject to the closing of the JobStreet acquisition. The Company will continue to hold its 12.1% investment in SEEK Asia following the transaction.