Revenues Disaggregation of Revenue by Geographical Markets (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 67,418	$ 65,388	$ 69,607
Americas
Disaggregation of Revenue [Line Items]
Revenues	54,157	51,992	53,805
Europe
Disaggregation of Revenue [Line Items]
Revenues	6,690	7,333	8,006
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues	6,571	6,063	7,796
Disney Media and Entertainment Distribution
Disaggregation of Revenue [Line Items]
Revenues	50,866	48,350	42,821
Disney Media and Entertainment Distribution | Americas
Disaggregation of Revenue [Line Items]
Revenues	41,754	39,163	33,602
Disney Media and Entertainment Distribution | Europe
Disaggregation of Revenue [Line Items]
Revenues	5,022	5,240	4,762
Disney Media and Entertainment Distribution | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues	4,090	3,947	4,457
Disney Parks, Experiences and Products
Disaggregation of Revenue [Line Items]
Revenues	16,552	17,038	26,786
Disney Parks, Experiences and Products | Americas
Disaggregation of Revenue [Line Items]
Revenues	12,403	12,829	20,203
Disney Parks, Experiences and Products | Europe
Disaggregation of Revenue [Line Items]
Revenues	1,668	2,093	3,244
Disney Parks, Experiences and Products | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues	$ 2,481	$ 2,116	$ 3,339