Condensed Consolidated Financial Statement Details - Property, Plant and Equipment, Net (Detail) - USD ($) $ in Millions	Dec. 31, 2016	Sep. 24, 2016
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 62,759	$ 61,245
Accumulated depreciation and amortization	(36,249)	(34,235)
Total property, plant and equipment, net	26,510	27,010
Land and buildings
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	10,932	10,185
Machinery, equipment and internal-use software
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	45,309	44,543
Leasehold improvements
Property, Plant and Equipment [Line Items]
Gross property, plant and equipment	$ 6,518	$ 6,517