Disaggregation of Revenue by Major Source (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Disaggregation of Revenue [Line Items]
Revenues	$ 16,249	$ 20,877
Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues	4,402	4,440
Advertising
Disaggregation of Revenue [Line Items]
Revenues	3,764	3,398
Subscription fees
Disaggregation of Revenue [Line Items]
Revenues	2,546	1,326
Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues	549	2,067
Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues	432	1,631
Retail and wholesale sales of merchandise, food and beverage
Disaggregation of Revenue [Line Items]
Revenues	1,163	2,313
TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	1,169	1,569
Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	31	1,408
Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	1,095	1,056
Home entertainment
Disaggregation of Revenue [Line Items]
Revenues	300	596
Other
Disaggregation of Revenue [Line Items]
Revenues	798	1,073
Disney Media and Entertainment Distribution
Disaggregation of Revenue [Line Items]
Revenues	12,661	13,297
Disney Media and Entertainment Distribution | Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues	4,402	4,440
Disney Media and Entertainment Distribution | Advertising
Disaggregation of Revenue [Line Items]
Revenues	3,763	3,396
Disney Media and Entertainment Distribution | Subscription fees
Disaggregation of Revenue [Line Items]
Revenues	2,546	1,326
Disney Media and Entertainment Distribution | TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	1,169	1,569
Disney Media and Entertainment Distribution | Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	31	1,408
Disney Media and Entertainment Distribution | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	5	8
Disney Media and Entertainment Distribution | Home entertainment
Disaggregation of Revenue [Line Items]
Revenues	300	596
Disney Media and Entertainment Distribution | Other
Disaggregation of Revenue [Line Items]
Revenues	445	554
Disney Parks, Experiences and Products
Disaggregation of Revenue [Line Items]
Revenues	3,588	7,580
Disney Parks, Experiences and Products | Advertising
Disaggregation of Revenue [Line Items]
Revenues	1	2
Disney Parks, Experiences and Products | Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues	549	2,067
Disney Parks, Experiences and Products | Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues	432	1,631
Disney Parks, Experiences and Products | Retail and wholesale sales of merchandise, food and beverage
Disaggregation of Revenue [Line Items]
Revenues	1,163	2,313
Disney Parks, Experiences and Products | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	1,090	1,048
Disney Parks, Experiences and Products | Other
Disaggregation of Revenue [Line Items]
Revenues	$ 353	$ 519