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Restructuring and Impairment Charges - Additional Details (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jul. 03, 2021	Jun. 27, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	$ 35	$ 5,047	$ 562	$ 5,342
Restricted Stock or Unit Expense	134	117	356	314
International Channels
Restructuring Cost and Reserve [Line Items]
Goodwill, Impairment Loss		3,100		3,100
Distribution Rights \| International Channels
Restructuring Cost and Reserve [Line Items]
Impairment of Intangible Assets (Excluding Goodwill)		$ 1,900		$ 1,900
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges	35
TFCF Integration
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 100		400
TFCF Integration \| TFCF
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges			1,700
TFCF Integration \| TFCF \| Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges			1,300
TFCF Integration \| TFCF \| Vest Upon Acquisition
Restructuring Cost and Reserve [Line Items]
Restricted Stock or Unit Expense			300
Closure of Animation Studio and Retail Stores
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment charges			$ 500