Additional Financial Information - Components of Other, Net (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2013		Dec. 31, 2012
Other Income And Expenses [Abstract]
Foreign tax refund payable to 21st Century Fox	$ (238)	[1]		[1]	$ (721)	[1]		[1]
Gain on third party pension contribution		[2]		[2]	37	[2]		[2]
Gain on CMH transaction		[3]	1,258	[3]		[3]	1,258	[3]
Other, net	7		(6)		12		(3)
Total Other, net	$ (231)		$ 1,252		$ (672)		$ 1,255

[1] See Note 12 - Income Taxes

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

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