Employee Benefit Plans - Valuation of Employee Share-Based Awards - Employee Stock Purchase Rights (Details) - Employee Stock Purchase Rights - $ / shares |
12 Months Ended | ||
---|---|---|---|
Jul. 30, 2022 |
Jul. 31, 2021 |
Jul. 25, 2020 |
|
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
Expected volatility | 27.90% | 29.20% | 22.20% |
Risk-free interest rate | 0.10% | 0.30% | 1.80% |
Expected dividend | 3.20% | 3.20% | 3.00% |
Expected life (in years) | 1 year 2 months 12 days | 1 year 3 months 18 days | 1 year 3 months 18 days |
Weighted-average estimated grant date fair value per share (in dollars per share) | $ 12.90 | $ 12.46 | $ 10.20 |