|
Employee Benefit Plans (Summary Of Share-Based Awards Available For Grant) (Detail)
In Millions, unless otherwise specified |
3 Months Ended | 12 Months Ended |
|---|---|---|
|
Oct. 27, 2012
|
Jul. 28, 2012
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options Available for Grant [Roll Forward] | ||
| Beginning balance | 218 | 255 |
| Restricted stock, stock units, and other share-based awards granted and assumed | (23) | (95) |
| Share-based awards canceled/forfeited/expired | 74 | 64 |
| Stock Option And Other Share Based Awards Granted | (3) | (6) |
| Ending balance | 266 | 218 |