Business And Geographic Segment Information (Additional Product Information For Net Sales) (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
May. 01, 2016 |
May. 03, 2015 |
May. 01, 2016 |
May. 03, 2015 |
|
| Segment Reporting Information [Line Items] | ||||
| Net sales | $ 1,870 | $ 1,900 | $ 6,274 | $ 6,389 |
| Soup [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Net sales | 575 | 602 | 2,253 | 2,361 |
| Baked Snacks [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Net sales | 584 | 587 | 1,886 | 1,919 |
| Other Simple Meals [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Net sales | 424 | 409 | 1,300 | 1,251 |
| Beverages [Member] | ||||
| Segment Reporting Information [Line Items] | ||||
| Net sales | $ 287 | $ 302 | $ 835 | $ 858 |