Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Sep. 28, 2013
Income Taxes [Line Items]
Undistributed Earnings of Foreign Subsidiaries	$ 2,700
Undistributed earnings of foreign subsidiaries for which deferred taxes have not been provided	547
Gross unrecognized tax benefits that would reduce income tax expense and effective tax rate, if recognized	501	$ 453	$ 449
Accrued interest and penalties related to unrecognized tax benefits	231	216	211
Additional accrued interest related to unrecognized tax benefits	68	25	42
Reductions in accrued interest as a result of audit settlements and other prior-year adjustments	54	21	55
Unrecognized tax benefits, reasonably possible reduction due to payments for or resolution of open tax matters	131
Income tax benefits attributable to equity-based compensation transactions (less than) exceeded amounts recorded based on grant date fair value (charged) credited to shareholders' equity	313	255	$ 204
International Theme Parks
Income Taxes [Line Items]
Valuation allowance	1,100
Income (Loss) from Continuing Operations Attributable to Noncontrolling Interest	$ (400)	$ (700)
Tax Credit Carryforward, Description	indefinite carryforward period in France and Hong Kong and a five-year carryforward period in China
International Theme Parks | CHINA
Income Taxes [Line Items]
Tax Credit Carryforward, Period	5 years
Disneyland Paris
Income Taxes [Line Items]
Deferred Tax Assets, Adjustment	$ 399