Income Taxes - Reconciliation of Effective Income Tax Rate to Federal Rate (Detail)		12 Months Ended
		Sep. 30, 2017	Oct. 01, 2016	Oct. 03, 2015
Income Tax Disclosure [Abstract]
Federal income tax rate		35.00%	35.00%	35.00%
State taxes, net of federal benefit		1.70%	1.80%	1.90%
Domestic production activity deduction		(2.10%)	(1.60%)	(1.90%)
Earnings in jurisdictions taxed at rates different from the statutory U.S. federal rate		(1.60%)	(1.10%)	(1.50%)
Disneyland Paris recapitalization	[1]	0.00%	0.00%	2.90%
Other, including tax reserves and related interest	[2]	(0.90%)	0.10%	(0.20%)
Effective Income Tax Rate, Continuing Operations, Total		32.10%	34.20%	36.20%

[1] At the beginning of fiscal 2015, the Company had a $399 million deferred income tax asset on the difference between the Company’s tax basis in its investment in Disneyland Paris and the Company’s financial statement carrying value of Disneyland Paris. As a result of the Disneyland Paris recapitalization and the increase in the Company’s ownership interest (see Note 6 for further discussion of this transaction), the deferred tax asset was written off to income tax expense in fiscal 2015.

[2] In fiscal 2017, the Company adopted new accounting guidance, which resulted in $125 million of tax benefits related to employee share-based awards being credited to “Income taxes” in the Consolidated Statement of Income (see Note 18).