Investments - Schedule of Earnings of Equity Affiliates (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Equity Earnings Of Affiliates [Member] \| Foxtel [Member]
Schedule of Equity Method Investments [Line Items]
Amortization of excess basis allocated to finite-lived intangible assets	$ 12	$ 14	$ 37	$ 44

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.

No definition available.

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