Shareholders' Equity - Summary of Dividends Declared and Paid (Detail) - USD ($) $ / shares in Units, $ 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 |
|
| Equity [Abstract] | |||||||||||
| Dividends per share (in dollars per share) | $ 0.57 | $ 0.57 | $ 0.52 | $ 0.52 | $ 0.52 | $ 0.52 | $ 0.47 | $ 0.47 | $ 2.18 | $ 1.98 | $ 1.82 |
| Amount | $ 3,071 | $ 3,117 | $ 2,879 | $ 2,898 | $ 2,950 | $ 2,997 | $ 2,734 | $ 2,750 | $ 11,965 | $ 11,431 | |