Investments - Schedule of Summarized Financial Information (Detail) - Foxtel [Member] - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Schedule of Equity Method Investments [Line Items]
Revenues		$ 618	$ 587
Operating income	[1]	91	85
Net income		$ 16	$ 42

[1] Includes Depreciation and amortization of $52 million and $55 million for the three months ended September 30, 2016 and 2015, respectively. Operating income before depreciation and amortization was $143 million and $140 million for the three months ended September 30, 2016 and 2015, respectively.