Equity in the Income of Investees Included in Segment Operating Results Footnote (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Schedule of Equity Method Investments [Line Items]
Equity in the income (loss) of investees	$ 761	$ 651	$ (103)
Equity Method Investment, Other than Temporary Impairment	0	0	(538)	[1]
Amortization of Intangible Assets Held by Equity Investees	(15)	(26)	(15)
Disney Media and Entertainment Distribution
Schedule of Equity Method Investments [Line Items]
Equity in the income (loss) of investees	795	696	463
Disney Parks, Experiences and Products
Schedule of Equity Method Investments [Line Items]
Equity in the income (loss) of investees	(19)	(19)	(13)
Total Segments
Schedule of Equity Method Investments [Line Items]
Equity in the income (loss) of investees	$ 776	$ 677	$ 450

[1] Impairment of equity investments for fiscal 2019 primarily reflects the impairments of Vice Group Holding Inc. and of an investment in a cable channel at A+E Television Networks ($353 million and $170 million, respectively).