Income Taxes - Reconciliation of Tax Rate (Details) |
6 Months Ended | |
|---|---|---|
Jan. 31, 2016 |
Jan. 31, 2015 |
|
| Reconciliation of consolidated income tax rate | ||
| Consolidated effective tax rate (as a percent) | 36.30% | 38.30% |
| Differential attributable to: | ||
| Acquisition related items, net | (0.70%) | |
| New tax legislation | (0.70%) | |
| International operations | (0.40%) | |
| Other | (0.20%) | |
| United States | ||
| Reconciliation of consolidated income tax rate | ||
| Consolidated effective tax rate (as a percent) | 36.30% | 36.40% |