Equity Method Investment and Intangible Assets Included in Identifiable Assets by Segment Footnote (Details) - USD ($) $ in Millions	Oct. 02, 2021	Oct. 03, 2020
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	$ 2,638	$ 2,632
Goodwill and intangible assets	17,115	19,173
Disney Media and Entertainment Distribution
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	2,578	2,574
Goodwill and intangible assets	14,143	16,087
Disney Parks, Experiences and Products
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	2	3
Goodwill and intangible assets	2,952	3,066
Corporate
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	58	55
Goodwill and intangible assets	$ 20	$ 20