Income Taxes (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Dec. 27, 2015 |
Mar. 29, 2015 |
Sep. 25, 2016 |
Sep. 27, 2015 |
|
| Subsequent Event [Line Items] | ||||
| Effective income tax rate | 13.00% | 19.00% | ||
| Tax benefits from foreign income taxed at rates lower than rates in the United States | 14.00% | |||
| Tax benefit recognized in period related to prior period attributable to research tax credit | $ 79 | |||
| Government fine amount | $ 975 | |||
| Unrecognized Tax Benefits | $ 113 | $ 40 | ||
| Scenario, Forecast [Member] | ||||
| Subsequent Event [Line Items] | ||||
| Effective income tax rate | 17.00% | |||
| Tax benefits from foreign income taxed at rates lower than rates in the United States | 16.00% | |||