Dispositions and Other Income/(Expense) - Additional Information (Detail) $ in Millions, VEF in Billions	12 Months Ended
	Oct. 01, 2016 USD ($) VEF / $	Oct. 03, 2015 USD ($)	Sep. 27, 2014 USD ($)	Oct. 01, 2016 VEF VEF / $	Sep. 28, 2013 USD ($)
Schedule of Other Income and Expense [Line Items]
Net gains (losses) on foreign currency denominated assets and liabilities	$ 0	$ 0	$ (143)
Cash and cash equivalents	4,610	4,269	3,421		$ 3,931
Gain on Disposition of Assets			83
Gain on sale of property and other	$ 0	$ 0	112
Affiliate Contract
Schedule of Other Income and Expense [Line Items]
Gain on sale of property and other			29
Venezuelan bolívar fuerte
Schedule of Other Income and Expense [Line Items]
Net gains (losses) on foreign currency denominated assets and liabilities			$ (143)
Cash and cash equivalents | VEF				VEF 4.3
Venezuelan bolívar fuerte | DICOM
Schedule of Other Income and Expense [Line Items]
Foreign Currency Exchange Rate, Remeasurement | VEF / $	656.0			656.0