Condensed Consolidated Financial Statement Details - Property, Plant and Equipment, Net (Detail) - USD ($) $ in Millions	Jun. 25, 2016	Sep. 26, 2015
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 57,991	$ 49,257
Accumulated depreciation and amortization	(32,543)	(26,786)
Total property, plant and equipment, net	25,448	22,471
Land and Buildings
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	9,108	6,956
Machinery, Equipment and Internal-Use Software
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	42,550	37,038
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 6,333	$ 5,263