v3.26.1
RISK MANAGEMENT - Credit risk model scenarios - Proportion of assets in Stage 2 (Details)
Dec. 31, 2025
Dec. 31, 2024
Commercial lending portfolio [member] | Scenario A    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 3.90% 3.20%
Commercial lending portfolio [member] | Scenario B    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 4.10% 3.20%
Commercial lending portfolio [member] | Scenario C    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 4.20% 3.80%
Loans to consumers [member] | Scenario A    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 6.40% 7.60%
Loans to consumers [member] | Scenario B    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 6.30% 8.20%
Loans to consumers [member] | Scenario C    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 6.30% 8.70%
Mortgages [member] | Scenario A    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 3.80% 6.00%
Mortgages [member] | Scenario B    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 3.80% 8.40%
Mortgages [member] | Scenario C    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 3.80% 8.40%
Microcredit [member] | Scenario A    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 0.50% 0.90%
Microcredit [member] | Scenario B    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 0.50% 0.90%
Microcredit [member] | Scenario C    
Disclosure of financial assets [line items]    
Proportion of Assets in Stage 2 0.50% 0.90%