Investments - Schedule of Earnings of Equity Affiliates (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Schedule of Equity Method Investments [Line Items]
Equity earnings of affiliates		$ 2	$ 7	$ 25	$ 48
Foxtel [Member]
Schedule of Equity Method Investments [Line Items]
Equity earnings of affiliates	[1]	4	8	26	$ 48
Other Equity Affiliates, Net [Member]
Schedule of Equity Method Investments [Line Items]
Equity earnings of affiliates		$ (2)	$ (1)	$ (1)

[1] In accordance with ASC 350, the Company amortized $12 million and $37 million related to excess cost over the Company's proportionate share of its investment's underlying net assets allocated to finite-lived intangible assets during the three and nine months ended March 31, 2016, respectively, and $14 million and $44 million in the corresponding periods of fiscal 2015, respectively. Such amortization is reflected in Equity earnings of affiliates in the Statements of Operations.