Property, Plant and Equipment, Net (Detail) - USD ($) $ in Millions |
Dec. 26, 2015 |
Sep. 26, 2015 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Gross property, plant and equipment | $ 51,342 | $ 49,257 |
| Accumulated depreciation and amortization | (29,042) | (26,786) |
| Total property, plant and equipment, net | 22,300 | 22,471 |
| Land and Buildings | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross property, plant and equipment | 7,729 | 6,956 |
| Machinery, Equipment and Internal-Use Software | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross property, plant and equipment | 38,039 | 37,038 |
| Leasehold Improvements | ||
| Property, Plant and Equipment [Line Items] | ||
| Gross property, plant and equipment | $ 5,574 | $ 5,263 |