Segment Information and Geographic Data - Net Sales (Detail) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 24, 2016 |
Jun. 25, 2016 |
Mar. 26, 2016 |
Dec. 26, 2015 |
Sep. 26, 2015 |
Jun. 27, 2015 |
Mar. 28, 2015 |
Dec. 27, 2014 |
Sep. 24, 2016 |
Sep. 26, 2015 |
Sep. 27, 2014 |
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Net sales | $ 46,852 | $ 42,358 | $ 50,557 | $ 75,872 | $ 51,501 | $ 49,605 | $ 58,010 | $ 74,599 | $ 215,639 | $ 233,715 | $ 182,795 |
| U.S. | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Net sales | 75,667 | 81,732 | 68,909 | ||||||||
| CHINA | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Net sales | 46,349 | 56,547 | 30,638 | ||||||||
| Other countries | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Net sales | $ 93,623 | $ 95,436 | $ 83,248 | ||||||||