Investments - Additional Information (Detail) $ in Millions	9 Months Ended
Mar. 31, 2017 USD ($)
Foreign Currency Fluctuation [Member]
Investment [Line Items]
Percentage of increase (decrease) in revenues	(2.00%)
Foxtel [Member]
Investment [Line Items]
Increase (Decrease) in revenue	$ 48
Percentage of increase (decrease) in revenues	3.00%
Presto Operations [Member]
Investment [Line Items]
Increase (Decrease) in net income	$ 47
Ten Network Holdings [Member]
Investment [Line Items]
Increase (Decrease) in net income	$ 36

- Definition

Line items represent reporting 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 12
-Sentence Column A

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