Investments - Schedule of Summarized Financial Information (Detail) (Foxtel [Member], USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2014		Sep. 30, 2013
Foxtel [Member]
Schedule of Equity Method Investments [Line Items]
Revenues	$ 728		$ 718
Operating income	137	[1]	135	[1]
Net income	$ 81		$ 58

[1] Includes Depreciation and amortization of $88 million and $86 million for the three months ended September 30, 2014 and 2013, respectively. Operating income before depreciation and amortization was $225 million and $221 million for the three months ended September 30, 2014 and 2013, respectively.