Acquisitions, Disposals and Other Transactions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended				1 Months Ended
	Aug. 31, 2014 Harlequin Enterprises Limited [Member]	Aug. 31, 2014 Harlequin Enterprises Limited [Member] Publishing Rights [Member]	Aug. 31, 2014 Harlequin Enterprises Limited [Member] Imprints [Member]	Sep. 30, 2013 LMG [Member] State	Sep. 30, 2013 LMG [Member] Daily Newspapers [Member] Product	Sep. 30, 2013 LMG [Member] Weekly Newspapers [Member] Product
Schedule Of Business Acquisitions And Divestitures [Line Items]
Business acquisition, cost of acquired entity	$ 414
Business acquisition purchase price allocation, cash	19
Business acquisition purchase price allocation, net tangible assets	90
Purchase price of goodwill and other intangible assets in excess of fair value	320
Business acquisition purchase price allocation, amortizable intangible assets		90
Useful life of amortizable intangible assets		8 years
Business acquisition purchase price allocation, unamortizable intangible assets			100
Business acquisition purchase price allocation, deferred tax liability	50
Business acquisition purchase price allocation, goodwill amount	$ 180
Number of products					8	15
States of operation				7