Investments - Schedule of Summarized Financial Information (Parenthetical) (Detail) - Foxtel [Member] - USD ($) $ in Millions	6 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Schedule of Equity Method Investments [Line Items]
Depreciation and amortization	$ 111	$ 168
Operating income before depreciation and amortization	$ 295	$ 423

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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