Stock-based Compensation (Schedule Of Stock Option Activity) (Details)
$ / shares in Units, shares in Thousands, $ in Millions |
9 Months Ended |
|
May. 01, 2016
USD ($)
$ / shares
shares
|
|---|
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
|
| Beginning of year, Options | shares |
74
|
| Granted, Options | shares |
711
|
| Exercised, Options | shares |
(74)
|
| Terminated, Options | shares |
0
|
| End of year, Options | shares |
711
|
| Exercisable at end of period, Options | shares |
0
|
| Beginning of period, Weighted-Average Exercise Price | $ / shares |
$ 29.91
|
| Granted, Weighted-Average Exercise Price | $ / shares |
50.21
|
| Exercised, Weighted-Average Exercise Price | $ / shares |
29.91
|
| Terminated, Weighted-Average Exercise Price | $ / shares |
0.00
|
| End of period, Weighted-Average Exercise Price | $ / shares |
50.21
|
| Exercisable at end of period, Weighted-Average Exercise Price | $ / shares |
$ 0
|
| Outstanding at end of period, Weighted-Average Remaining Contractual Life (In years) |
9 years 5 months
|
| Exercisable at end of period, Weighted-Average Remaining Contractual Life (In years) |
0 years
|
| Outstanding at end of period, Aggregate Intrinsic Value | $ |
$ 8
|
| Exercisable at end of period, Aggregate Intrinsic Value | $ |
$ 0
|