Related Party Transactions and 21st Century Fox Investment - Schedule of Components of Net Increase in Investment (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended		3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012 21st Century Fox [Member]		Dec. 31, 2012 21st Century Fox [Member]
Related Party Transaction [Line Items]
Cash pooling and general financing activities			$ (7)	[1]	$ 5	[1]
Corporate allocations			49		111
Cash transfer from 21st Century Fox for acquisitions and dispositions			1,820		2,013
Net increase in 21st Century Fox Investment		$ 2,129	$ 1,862		$ 2,129

[1] The nature of activities included in the line item "Cash pooling and general financing activities" includes financing activities for capital transfers, cash sweeps and other treasury services prior to the Separation. Such pooling activities no longer exist between the Company and 21st Century Fox post-Separation.