Disaggregation of Revenue by Geographical Markets (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 16,249	$ 20,877
Americas
Disaggregation of Revenue [Line Items]
Revenues	12,747	16,295
Europe
Disaggregation of Revenue [Line Items]
Revenues	1,780	2,496
Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues	1,722	2,086
Disney Media and Entertainment Distribution
Disaggregation of Revenue [Line Items]
Revenues	12,661	13,297
Disney Media and Entertainment Distribution | Americas
Disaggregation of Revenue [Line Items]
Revenues	10,291	10,417
Disney Media and Entertainment Distribution | Europe
Disaggregation of Revenue [Line Items]
Revenues	1,293	1,563
Disney Media and Entertainment Distribution | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues	1,077	1,317
Disney Parks, Experiences and Products
Disaggregation of Revenue [Line Items]
Revenues	3,588	7,580
Disney Parks, Experiences and Products | Americas
Disaggregation of Revenue [Line Items]
Revenues	2,456	5,878
Disney Parks, Experiences and Products | Europe
Disaggregation of Revenue [Line Items]
Revenues	487	933
Disney Parks, Experiences and Products | Asia Pacific
Disaggregation of Revenue [Line Items]
Revenues	$ 645	$ 769