Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	12 Months Ended
	Sep. 28, 2013 derivatives	Sep. 29, 2012	Oct. 01, 2011
Accounting Policies [Abstract]
Ownership percentage, maximum	50.00%
Deferred Revenue Recognition Multi Day Tickets Period	5 years
Ultimate Revenues from Theatrical Release Maximum Period	10 years
Ultimate Revenues from TV Series Delivery of First Episode Maximum Period	10 years
Ultimate Revenues from TV Series Delivery of Recent Episode Maximum Period	5 years
Amortization Film Library Maximum Period	20 years
Film Development Write Off Maximum Period	3 years
Advertising expense	$ 2,600,000,000	$ 2,500,000,000	$ 2,800,000,000
Internal-Use software costs capitalized, net of accumulated depreciation	$ 831,000,000	$ 423,000,000
Amortizable intangible assets, maximum amortization period	40 years
Number of Types of Derivatives	2
Measurement of tax benefit, minimum likelihood of largest amount being realized upon ultimate settlement	50.00%