Segment Information - Revenue and Long-Lived Assets by Geographic Region (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended												12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013		Mar. 31, 2013		Dec. 31, 2012		Sep. 30, 2012		Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues	$ 2,186	$ 2,078	$ 2,238	$ 2,072	$ 2,257	[1]	$ 2,180	[1]	$ 2,321	[1]	$ 2,133	[1]	$ 8,574	$ 8,891	$ 8,654
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues													3,500	3,700	3,600
Australia [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues													2,600	2,800	2,800
U.K. [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenues													$ 1,800	$ 1,800	$ 1,700

[1] In the quarter ended December 31, 2012, the Company recorded a gain on the CMH transaction of approximately $1.3 billion (See Note 3-Acquisitions, Disposals and Other Transactions). In the quarter ended March 31, 2013, the Company recorded a gain on the sale of its investment in SKY Network Television Ltd. of $321 million (See Note 5-Investments). In the quarter ended June 30, 2013, the Company recorded impairment charges of approximately $1.4 billion. (See Note 7-Goodwill and Other Intangible Assets).