Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				1 Months Ended	3 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Oct. 31, 2013 Foreign Tax Authority [Member]	Sep. 30, 2013 Foreign Tax Authority [Member]	Sep. 30, 2013 21st Century Fox [Member]	Sep. 30, 2013 21st Century Fox [Member] Foreign Tax Authority [Member] Tax Indemnification [Member]
Income Tax Contingency [Line Items]
Refund of taxes plus interest in foreign jurisdiction					$ 555
Tax benefit, net						483	483
Tax expenses to others, net	0	[1]	483	[1]			483	483
Income taxes paid gross	19		19
Income tax refunds	$ 3		$ 17

[1] See Note 12-Income Taxes