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Investments - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2012
Investments Schedule [Abstract]      
Impairment charges related to the investment in an Australian newspaper business   $ 15 $ 14
Investments written-off $ 10 $ 0 [1] $ 30 [1]
[1] See Note 5-Investments