Investments - Schedule of Investments (Parenthetical) (Detail) AUD in Millions, $ in Millions		1 Months Ended				12 Months Ended
		Jun. 30, 2015 USD ($)		Nov. 30, 2014 USD ($)	Aug. 31, 2014 USD ($)	Jun. 30, 2015 USD ($)		Jun. 30, 2014 USD ($)		Jun. 30, 2013 USD ($)	Jun. 30, 2015 AUD	Dec. 31, 2014	Jul. 31, 2014 USD ($)
Schedule of Investments [Line Items]
Equity method investments dividends received						$ 138		$ 153		$ 220
Finite-lived intangible assets, net		$ 1,156				1,156		1,229
Other investments		$ 345				345		425
Cash consideration on sale of marketable securities					$ 104
Gain on sale of marketable securities	[1]					$ 29		6
Foxtel Shareholder Notes [Member]
Schedule of Investments [Line Items]
Earliest date subordinated note can be repaid						Jul. 01, 2022
Maturity date of subordinated note						Jul. 15, 2027
Percentage of interest payable on subordinated note		12.00%				12.00%					12.00%
Foxtel [Member]
Schedule of Investments [Line Items]
Equity method investments dividends received						$ 107		151
Investment exceeds equity in underlying net assets		$ 1,600				1,600
Carrying value of investment	[2]	1,476				1,476		1,869
Loan Receivable from Foxtel [Member]
Schedule of Investments [Line Items]
Other investments		$ 345	[3]			$ 345	[3]	$ 425	[3]		AUD 451
APN [Member]
Schedule of Investments [Line Items]
Ownership interest percentage on investment		14.99%				14.99%					14.99%
Purchase price of ownership interest						$ 112
SEEK Asia Limited [Member]
Schedule of Investments [Line Items]
Ownership interest percentage on investment		12.90%		12.10%		12.90%					12.90%
Additional ownership interest percentage on investment		0.80%				0.80%					0.80%
Other investments, amount				$ 60
Purchase price of ownership interest		$ 7
Subscriber Relationships [Member] | Foxtel [Member]
Schedule of Investments [Line Items]
Finite-lived intangible assets, net		$ 500				$ 500
Finite Lived Intangible Asset Useful Life						8 years
iProperty Group Limited [Member]
Schedule of Investments [Line Items]
Ownership interest percentage on investment		19.90%				19.90%					19.90%		17.22%
Equity method investment, cash consideration paid													$ 100
Additional ownership interest percentage on investment												2.20%
Carrying value of investment		$ 90				$ 90

[1] See Note 5-Investments

[2] The change in the Foxtel investment for the fiscal year ended June 30, 2015 was primarily due to the impact of foreign currency fluctuations. For the fiscal years ended June 30, 2015 and 2014, the Company received dividends from Foxtel of $107 million and $151 million, respectively. The Company's investment in Foxtel exceeds its equity in the underlying net assets by approximately $1.6 billion as of June 30, 2015. This amount represented the excess cost over the Company's proportionate share of its investment's underlying net assets. This has been allocated between finite-lived intangible assets, indefinite-lived intangible assets and goodwill. The finite-lived intangible assets of approximately $0.5 billion primarily represent subscriber relationships with a weighted remaining average useful life of 8 years.

[3] 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 ($345 million and $425 million as of June 30, 2015 and June 30, 2014, 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.