Property, Plant And Equipment (Details) (USD $) In Millions, unless otherwise specified	Jun. 28, 2014	Sep. 28, 2013
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 9,317	$ 9,202
Less accumulated depreciation	5,376	5,149
Net property, plant and equipment	3,941	4,053
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	104	100
Buildings And Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	3,014	2,945
Machinery And Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,680	5,504
Land Improvements And Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	274	417
Buildings And Equipment Under Construction [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 245	$ 236