Investments - Schedule of (Losses) Earnings of Equity Affiliates (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Schedule of Equity Method Investments [Line Items]
Equity (losses) earnings of affiliates		$ (23)	$ 2	$ (276)	$ 25
Foxtel [Member]
Schedule of Equity Method Investments [Line Items]
Equity (losses) earnings of affiliates	[1]	(16)	4	(260)	26
Other Equity Affiliates, Net [Member]
Schedule of Equity Method Investments [Line Items]
Equity (losses) earnings of affiliates		$ (7)	$ (2)	$ (16)	$ (1)

[1] During the second quarter of fiscal 2017, the Company recognized a $227 million non-cash write-down of the carrying value of its investment in Foxtel to fair value. The write-down is reflected in Equity (losses) earnings of affiliates in the Statements of Operations for the nine months ended March 31, 2017. Refer to the discussion above for further details.