Investments - Schedule of Summarized Financial Information (Detail) - Foxtel [Member] - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2015	Sep. 30, 2014
Schedule of Equity Method Investments [Line Items]
Revenues		$ 587	$ 728
Operating income	[1]	85	137
Net income		$ 42	$ 81

[1] Includes Depreciation and amortization of $55 million and $88 million for the three months ended September 30, 2015 and 2014, respectively. Operating income before depreciation and amortization was $140 million and $225 million for the three months ended September 30, 2015 and 2014, respectively.