Property, Plant and Equipment (Detail) (USD $) In Millions, unless otherwise specified	Sep. 28, 2013	Sep. 29, 2012
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 28,519	$ 21,887
Accumulated depreciation and amortization	(11,922)	(6,435)
Net property, plant and equipment	16,597	15,452
Land and Building
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	3,309	2,439
Machinery, Equipment and Internal Use Software
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	21,242	15,984
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 3,968	$ 3,464