Restructuring and Impairment Charges - Additional Details (Details) - USD ($) $ in Millions		3 Months Ended
		Dec. 28, 2019	Dec. 29, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 150	$ 0
Restricted Stock or Unit Expense	[1]	94	$ 73
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges		138
TFCF
Restructuring Cost and Reserve [Line Items]
Restricted Stock or Unit Expense		20
TFCF Integration | TFCF
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,300
TFCF Integration | TFCF | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,000
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 the quarter ended December 28, 2019 the Company recognized $20 million of equity based compensation in connection with the TFCF acquisition.