Capital Management - Additional Information (Details) |
6 Months Ended | |
|---|---|---|
Dec. 18, 2025 |
Apr. 30, 2026 |
|
| Disclosure of Capital Management [Abstract] | ||
| Capital conservation buffer, percentage | 2.50% | |
| Common equity surcharge, percentage | 1.00% | |
| Domestic stability buffer, percentage | 3.50% | 3.50% |