Restructuring and Impairment Charges - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Restructuring Cost and Reserve [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)	$ 300	$ 5,200	$ 600
Goodwill, Impairment Loss		3,074
Restructuring and impairment charges	654	5,735	1,183
Restricted Stock or Unit Expense	505	424	627	[1]
International Channels
Restructuring Cost and Reserve [Line Items]
Goodwill, Impairment Loss		3,100
Distribution Rights | International Channels
Restructuring Cost and Reserve [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)		1,900
Distribution Rights | International Channels in Latin America and India
Restructuring Cost and Reserve [Line Items]
Finite-Lived Intangible Assets, Gross	2,200
Closure of Animation Studio and Retail Stores
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	600
COVID-19 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges		$ 300
TFCF
Restructuring Cost and Reserve [Line Items]
Restricted Stock or Unit Expense			$ 164
TFCF | TFCF Integration
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	1,700
TFCF | TFCF Integration | Vest Upon Acquisition
Restructuring Cost and Reserve [Line Items]
Restricted Stock or Unit Expense	300
TFCF | TFCF Integration | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	$ 1,300

[1] Fiscal 2019 includes a $164 million charge for acceleration of TFCF performance RSUs converted to Company RSUs in connection with the TFCF acquisition (see Note 4).