Shareholders' Equity - Additional Information (Detail) - USD ($) |
Sep. 24, 2016 |
Apr. 30, 2016 |
Sep. 26, 2015 |
|---|---|---|---|
| Equity [Abstract] | |||
| Maximum amount authorized for repurchase of common stock | $ 175,000,000,000 | $ 140,000,000,000 | |
| Share repurchase program, utilized amount | $ 133,000,000,000 |