Financial risk review - Narrative (Details)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Guarantees and other financial credit enhancements
Disclosure of financial assets [line items]
Coverage ratio on loan portfolio	9.00%	16.00%

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

No definition available.

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