Related Party Transactions and 21st Century Fox Investment - Schedule of Components of Net Decrease in Investment (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Jun. 30, 2014	Sep. 30, 2013	Jun. 30, 2013		Jun. 30, 2012
Related Party Transaction [Line Items]
Receivable from related party	$ 2		$ 2
Deferred tax asset	1,792		1,740
21st Century Fox [Member]
Related Party Transaction [Line Items]
Receivable from related party		207
Accounts due from related party	66		247	[1]	0	[1]
Deferred tax asset, net of valuation allowance			378
Deferred tax asset			429
21st Century Fox [Member] | U.K. Newspaper Matters Indemnification [Member]
Related Party Transaction [Line Items]
Accounts due from related party	$ 66		$ 40

[1] The amounts due from 21st Century Fox consisted of a receivable of $207 million related to the final cash distribution which was received from 21st Century Fox during the first quarter of fiscal 2014 and $40 million related to the indemnification of certain costs related to the U.K. Newspaper Matters as discussed below.