Investments - Schedule of Summarized Financial Information (Detail) - Foxtel [Member] - USD ($) $ in Millions		3 Months Ended
		Sep. 30, 2018	[1]	Sep. 30, 2017
Schedule of Equity Method Investments [Line Items]
Revenues		$ 0		$ 633
Operating income	[2]	0		63
Net income		$ 0		$ 24

[1] The Company began consolidating the results of Foxtel in the fourth quarter of fiscal 2018 as a result of the Transaction.

[2] Includes Depreciation and amortization of $59 million for the three months ended September 30, 2017. Operating income before depreciation and amortization was $122 million for the three months ended September 30, 2017.