Investments - Schedule of Investments (Detail) AUD in Millions, $ in Millions		Sep. 30, 2016 USD ($)		Sep. 30, 2016 AUD	Jun. 30, 2016 USD ($)		Jun. 30, 2016 AUD
Schedule of Investments [Line Items]
Available-for-sale securities	[1]	$ 139			$ 189
Cost method investments	[2]	217			205
Total Investments		2,269			2,270
Other Equity Method Investments [Member]
Schedule of Investments [Line Items]
Equity method investments		106			101
Foxtel [Member]
Schedule of Investments [Line Items]
Equity method investments	[3]	1,461			1,437
Loan receivable from Foxtel		$ 346	[4]	AUD 451	$ 338	[4]	AUD 451
Equity method investment, ownership percentage	[3]	50.00%		50.00%

[1] Available-for-sale securities primarily include the Company's investments in APN and The Rubicon Project, Inc. During fiscal 2016, the Company participated in an entitlement offer to maintain its 14.99% interest in APN for $20 million. APN operates a portfolio of Australian radio and outdoor media assets.

[2] Cost method investments primarily include the Company's investment in SEEKAsia Limited and certain investments in China.

[3] The change in the Foxtel investment for the three months ended September 30, 2016 was primarily due to the impact of foreign currency fluctuations.

[4] In May 2012, Foxtel purchased Austar United Communications Ltd. The transaction was funded by Foxtel bank debt and pro rata capital contributions made by Foxtel shareholders 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 ($346 million and $338 million as of September 30, 2016 and June 30, 2016, respectively). The subordinated shareholder notes can be repaid beginning in July 2022 provided that Foxtel's senior debt has been repaid. The subordinated shareholder notes have a maturity date of July 15, 2027, with interest payable on June 30 each year and at maturity. On June 22, 2016, Foxtel and Foxtel's shareholders agreed to modify the terms of the loan receivable to reduce the interest rate from 12% to 10.5%, to more closely align with current market rates. Upon maturity, the principal advanced will be repayable.