Investments - Schedule of Summarized Financial Information (Detail) - Foxtel [Member] - USD ($) $ in Millions		6 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Revenues		$ 1,185	$ 1,408
Operating income	[1]	184	255
Net income		$ 94	$ 140

[1] Includes Depreciation and amortization of $111 million and $168 million for the six months ended December 31, 2015 and 2014, respectively. Operating income before depreciation and amortization was $295 million and $423 million for the six months ended December 31, 2015 and 2014, respectively.