Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended						3 Months Ended	1 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013 Foreign Jurisdiction [Member] Scenario, Forecast [Member] Minimum [Member]	Sep. 30, 2013 Foreign Jurisdiction [Member] Scenario, Forecast [Member] Maximum [Member]	Sep. 30, 2013 21st Century Fox [Member] Tax Indemnification [Member]	Oct. 31, 2013 Subsequent Event [Member]
Income Tax Contingency [Line Items]
Refund of taxes plus interest								$ 555
Tax benefit, net	483		0
Accounts due to related party	483	[1]	0	[1]			483
Expected refund of taxes					0	200
Income taxes paid gross	19		31
Income tax refunds	$ 17		$ 2

[1] See Note 11 - Income Taxes