Revenues Disaggregation of Revenue by Major Source (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
Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues	17,760	17,929	15,948
Advertising
Disaggregation of Revenue [Line Items]
Revenues	12,429	10,855	10,513
Subscription fees
Disaggregation of Revenue [Line Items]
Revenues	12,020	7,645	2,115
Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues	3,848	4,038	7,540
Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues	2,701	3,402	6,266
Retail and wholesale sales of merchandise, food and beverage
Disaggregation of Revenue [Line Items]
Revenues	4,957	4,952	7,716
TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	5,266	6,253	5,555
Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	920	2,134	4,726
Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	3,598	3,242	3,380
Home entertainment
Disaggregation of Revenue [Line Items]
Revenues	1,014	1,802	1,961
Other
Disaggregation of Revenue [Line Items]
Revenues	2,905	3,136	3,887
Disney Media and Entertainment Distribution
Disaggregation of Revenue [Line Items]
Revenues	50,866	48,350	42,821
Disney Media and Entertainment Distribution | Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues	17,760	17,929	15,948
Disney Media and Entertainment Distribution | Advertising
Disaggregation of Revenue [Line Items]
Revenues	12,425	10,851	10,507
Disney Media and Entertainment Distribution | Subscription fees
Disaggregation of Revenue [Line Items]
Revenues	12,020	7,645	2,115
Disney Media and Entertainment Distribution | TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	5,266	6,253	5,555
Disney Media and Entertainment Distribution | Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues	920	2,134	4,726
Disney Media and Entertainment Distribution | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	12	32	51
Disney Media and Entertainment Distribution | Home entertainment
Disaggregation of Revenue [Line Items]
Revenues	1,014	1,802	1,961
Disney Media and Entertainment Distribution | Other
Disaggregation of Revenue [Line Items]
Revenues	1,449	1,704	1,958
Disney Parks, Experiences and Products
Disaggregation of Revenue [Line Items]
Revenues	16,552	17,038	26,786
Disney Parks, Experiences and Products | Advertising
Disaggregation of Revenue [Line Items]
Revenues	4	4	6
Disney Parks, Experiences and Products | Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues	3,848	4,038	7,540
Disney Parks, Experiences and Products | Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues	2,701	3,402	6,266
Disney Parks, Experiences and Products | Retail and wholesale sales of merchandise, food and beverage
Disaggregation of Revenue [Line Items]
Revenues	4,957	4,952	7,716
Disney Parks, Experiences and Products | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues	3,586	3,210	3,329
Disney Parks, Experiences and Products | Other
Disaggregation of Revenue [Line Items]
Revenues	$ 1,456	$ 1,432	$ 1,929