Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Mar. 31, 2014		Mar. 31, 2013		Mar. 31, 2014		Mar. 31, 2013
Income Tax Contingency [Line Items]
Accounts due to related party	$ 0	[1]	$ 0	[1]	$ 721	[1]	$ 0	[1]
Income tax refunds					840		12
Income taxes paid gross					69		82
21st Century Fox [Member]
Income Tax Contingency [Line Items]
Tax benefit, net					721
Accounts due to related party					721
21st Century Fox [Member] | Tax Indemnification [Member]
Income Tax Contingency [Line Items]
Accounts due to related party					721
Foreign Tax Authority [Member]
Income Tax Contingency [Line Items]
Gross refund of income taxes plus interest					794
Tax benefit, net					721
Income tax refunds					$ 794

[1] See Note 12 - Income Taxes