v3.25.4
Note 7 Negative scenario of GDP, unemployment rate and HPI for the main geographies (Details) - Negative scenario [Member]
Dec. 31, 2025
Dec. 31, 2024
SPAIN | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   3.05%
Unemployment   11.88%
HPI   2.97%
SPAIN | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 2.86% 1.18%
Unemployment 11.26% 12.71%
HPI 8.21% 3.15%
SPAIN | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 1.27% (1.30%)
Unemployment 12.81% 12.50%
HPI 5.49% (0.53%)
SPAIN | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP (0.95%) (2.50%)
Unemployment 12.65% 12.24%
HPI (0.17%) (2.81%)
SPAIN | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP (2.39%) (3.11%)
Unemployment 12.49% 11.88%
HPI (3.44%) (3.87%)
SPAIN | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP (2.95%) (2.86%)
Unemployment 12.28% 11.53%
HPI (4.28%) (3.55%)
SPAIN | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP (2.66%)  
Unemployment 11.98%  
HPI (3.91%)  
MEXICO | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   1.20%
Unemployment   2.75%
HPI   4.56%
MEXICO | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.63% (0.16%)
Unemployment 2.75% 3.20%
HPI 4.80% 4.86%
MEXICO | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.11% (0.20%)
Unemployment 3.15% 3.43%
HPI 4.38% 4.07%
MEXICO | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP (0.13%) 0.14%
Unemployment 3.31% 3.41%
HPI 3.86% 3.76%
MEXICO | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.24% 0.40%
Unemployment 3.30% 3.34%
HPI 3.41% 3.72%
MEXICO | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.40% 0.42%
Unemployment 3.28% 3.32%
HPI 3.25% 3.79%
MEXICO | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.45%  
Unemployment 3.39%  
HPI 2.96%  
TURKEY | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   3.13%
Unemployment   8.80%
TURKEY | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.69% 0.41%
Unemployment 8.53% 10.79%
TURKEY | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 1.90% 1.59%
Unemployment 9.55% 11.71%
TURKEY | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 2.53% 2.37%
Unemployment 10.33% 11.83%
TURKEY | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 1.38% 3.21%
Unemployment 11.01% 11.67%
TURKEY | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.16% 3.18%
Unemployment 11.14% 11.47%
TURKEY | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.20%  
Unemployment 10.97%  
PERU | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   2.92%
Unemployment   6.60%
PERU | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.16% 0.56%
Unemployment 5.99% 6.73%
PERU | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.98% 0.43%
Unemployment 6.24% 6.85%
PERU | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.31% 0.63%
Unemployment 6.35% 6.90%
PERU | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.66% 0.46%
Unemployment 6.38% 6.93%
PERU | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.67% 0.51%
Unemployment 6.41% 6.95%
PERU | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.73%  
Unemployment 6.42%  
ARGENTINA | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   (3.93%)
Unemployment   10.38%
ARGENTINA | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.29% 2.46%
Unemployment 8.18% 9.02%
ARGENTINA | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.00% (0.60%)
Unemployment 8.32% 8.10%
ARGENTINA | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP (2.05%) (1.79%)
Unemployment 7.88% 7.35%
ARGENTINA | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP (2.27%) (1.53%)
Unemployment 7.20% 6.73%
ARGENTINA | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP (2.03%) (1.41%)
Unemployment 6.48% 6.25%
ARGENTINA | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP (1.91%)  
Unemployment 5.72%  
COLOMBIA | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   1.77%
Unemployment   10.21%
COLOMBIA | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 2.49% 0.30%
Unemployment 8.65% 10.68%
COLOMBIA | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.61% 0.93%
Unemployment 9.04% 11.04%
COLOMBIA | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.50% 1.16%
Unemployment 9.56% 10.81%
COLOMBIA | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 1.22% 1.36%
Unemployment 9.76% 10.49%
COLOMBIA | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 1.53% 1.44%
Unemployment 10.09% 10.09%
COLOMBIA | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 1.67%  
Unemployment 10.29%