Investments - Additional Information (Detail) (Foxtel [Member], USD $) In Millions, unless otherwise specified	6 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Foxtel [Member]
Schedule of Equity Method Investments [Line Items]
Increase in net income	$ 62
Net income	$ 122	$ 60

The amount of net income (loss) reported by an equity method investment of the entity.

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