Additional Financial Information - Components of Other, Net (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
Components of Other Income (Expense) [Line Items]
Foreign tax refund payable to 21st Century Fox	$ 0	[1]	$ 0	[1]	$ (721)	[1]	$ 0	[1]
Gain on third party pension contribution	0	[2]	0	[2]	37	[2]	0	[2]
Gain on CMH transaction	0	[3]	0	[3]	0	[3]	1,258	[3]
Other, net	(1)		(7)		11		(10)
Total Other, net	(1)		314		(673)		1,569
SKY Network Television Ltd. [Member]
Components of Other Income (Expense) [Line Items]
Gain on sale of investment in SKY Network Television Ltd.	$ 0	[4]	$ 321	[4]	$ 0	[4]	$ 321	[4]

[1] See Note 12 - Income Taxes

[2] See Note 11 - Pension and Other Postretirement Benefits

[3] See Note 2 - Acquisitions, Disposals and Other Transactions

[4] See Note 4 - Investments