Restructuring and Impairment Charges - Additional Details (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Mar. 28, 2020		Mar. 30, 2019		Mar. 28, 2020	Mar. 30, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 145		$ 662		$ 295	$ 662
Restricted Stock or Unit Expense	103	[1]	340	[1]	197	413
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges	133
TFCF
Restructuring Cost and Reserve [Line Items]
Restricted Stock or Unit Expense			$ 259			$ 259
TFCF Integration | TFCF
Restructuring Cost and Reserve [Line Items]
Restructuring charges					1,500
TFCF Integration | TFCF | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges					1,200
TFCF Integration | TFCF | Scenario, Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,500
TFCF Integration | TFCF | Vest Upon Acquisition
Restructuring Cost and Reserve [Line Items]
Restricted Stock or Unit Expense					$ 300

[1] Includes TFCF Performance RSUs converted to Company RSUs in connection with the TFCF acquisition. For both the quarter and six months ended March 30, 2019, the Company recognized $259 million of equity based compensation in connection with the TFCF acquisition.