Investments - Schedule of Investments (Parenthetical) (Detail) In Millions, unless otherwise specified							3 Months Ended
	Sep. 30, 2013 Loan Receivable from Foxtel [Member] USD ($)		Sep. 30, 2013 Loan Receivable from Foxtel [Member] AUD	Jun. 30, 2013 Loan Receivable from Foxtel [Member] USD ($)		Jun. 30, 2013 Loan Receivable from Foxtel [Member] AUD	Sep. 30, 2013 Foxtel Shareholder Notes [Member]
Schedule of Investments [Line Items]
Cost method investment	$ 420	[1]	451	$ 412	[1]	451
Ability to repay subordinated note at earliest							Jul. 01, 2022
Maturity date of subordinated note							Jul. 15, 2027
Percentage of interest payable on subordinated note							12.00%

[1] 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 $A444 million ($420 million and $412 million as of September 30, 2013 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.