Acquisitions (Details) $ / shares in Units, $ in Millions		3 Months Ended	9 Months Ended
	Aug. 28, 2014 USD ($) $ / shares	Mar. 29, 2014 USD ($) business	Jun. 27, 2015 USD ($)	Jun. 28, 2014 USD ($)	Sep. 27, 2014 USD ($)
Business Acquisition [Line Items]
Goodwill			$ 6,690		$ 6,706
Acquisitions, net of cash acquired			0	$ 56
Hillshire Brands Company [Member]
Business Acquisition [Line Items]
Purchase price per share of acquired entity's common stock | $ / shares	$ 63.00
Purchase Price	$ 8,081
Breakage costs incurred related to previously proposed acquisition	163
Goodwill, Purchase Accounting Adjustments			$ 14
Goodwill	4,790
Valuation Allowances and Reserves, Adjustments				$ 46
Property, Plant, and Equipment	1,301
Intangible Assets	$ 5,141
Series of Individually Immaterial Business Acquisitions [Member]
Business Acquisition [Line Items]
Goodwill		$ 18
Number of Businesses Acquired | business		1
Acquisitions, net of cash acquired		$ 56
Property, Plant, and Equipment		12
Intangible Assets		$ 27