Property, Plant and Equipment, Net (Detail) - USD ($) $ in Millions |
Mar. 26, 2016 |
Sep. 26, 2015 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Gross property, plant and equipment | $ 54,051 | $ 49,257 |
| Accumulated depreciation and amortization | (30,848) | (26,786) |
| Total property, plant and equipment, net | 23,203 | 22,471 |
| Land and Buildings | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross property, plant and equipment | 8,391 | 6,956 |
| Machinery, Equipment and Internal-Use Software | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross property, plant and equipment | 39,723 | 37,038 |
| Leasehold Improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross property, plant and equipment | $ 5,937 | $ 5,263 |