v3.25.4
Note 7 Positive scenario of GDP, unemployment rate and HPI for the main geographies (Details) - Positive scenario [Member]
Dec. 31, 2025
Dec. 31, 2024
SPAIN | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   3.13%
Unemployment   10.97%
HPI   3.01%
SPAIN | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 2.94% 3.48%
Unemployment 9.89% 8.78%
HPI 8.26% 5.55%
SPAIN | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.58% 5.02%
Unemployment 7.08% 8.17%
HPI 7.91% 6.98%
SPAIN | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 5.36% 6.65%
Unemployment 6.52% 7.64%
HPI 7.34% 7.96%
SPAIN | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 6.75% 7.05%
Unemployment 6.09% 7.21%
HPI 7.34% 7.69%
SPAIN | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 7.21% 6.70%
Unemployment 5.81% 6.96%
HPI 7.28% 6.81%
SPAIN | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 6.90%  
Unemployment 5.61%  
HPI 6.44%  
MEXICO | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   1.25%
Unemployment   2.75%
HPI   4.57%
MEXICO | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 0.69% 2.48%
Unemployment 2.75% 3.04%
HPI 4.81% 4.85%
MEXICO | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 2.74% 3.87%
Unemployment 2.99% 3.03%
HPI 4.37% 4.38%
MEXICO | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.94% 3.54%
Unemployment 2.90% 2.89%
HPI 4.17% 4.82%
MEXICO | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.65% 3.58%
Unemployment 2.78% 2.77%
HPI 4.47% 5.12%
MEXICO | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.58% 3.52%
Unemployment 2.70% 2.73%
HPI 4.65% 5.46%
MEXICO | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.55%  
Unemployment 2.80%  
HPI 4.63%  
TURKEY | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   3.25%
Unemployment   8.79%
TURKEY | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.82% 5.97%
Unemployment 8.52% 9.89%
TURKEY | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 7.47% 8.35%
Unemployment 8.65% 9.27%
TURKEY | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 9.29% 6.76%
Unemployment 7.89% 8.80%
TURKEY | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 5.77% 5.88%
Unemployment 7.98% 8.81%
TURKEY | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 5.84% 5.51%
Unemployment 8.29% 8.96%
TURKEY | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 5.53%  
Unemployment 8.45%  
PERU | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   3.12%
Unemployment   6.59%
PERU | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.35% 3.45%
Unemployment 5.98% 6.55%
PERU | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.87% 4.15%
Unemployment 6.06% 6.44%
PERU | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.03% 4.12%
Unemployment 5.94% 6.31%
PERU | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.15% 3.70%
Unemployment 5.79% 6.20%
PERU | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.91% 3.57%
Unemployment 5.69% 6.12%
PERU | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 3.79%  
Unemployment 5.59%  
ARGENTINA | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   (3.66%)
Unemployment   10.37%
ARGENTINA | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.58% 7.37%
Unemployment 8.17% 8.67%
ARGENTINA | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.92% 8.83%
Unemployment 7.97% 7.13%
ARGENTINA | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 7.41% 8.54%
Unemployment 6.91% 5.92%
ARGENTINA | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 8.04% 8.60%
Unemployment 5.77% 5.05%
ARGENTINA | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 8.10% 8.44%
Unemployment 4.80% 4.50%
ARGENTINA | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 7.94%  
Unemployment 3.97%  
COLOMBIA | 2024 [Member]    
Macroeconomic variables [Line Items]    
GDP   2.16%
Unemployment   10.20%
COLOMBIA | 2025 [Member]    
Macroeconomic variables [Line Items]    
GDP 2.89% 4.09%
Unemployment 8.64% 10.07%
COLOMBIA | 2026 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.41% 4.68%
Unemployment 8.43% 9.72%
COLOMBIA | 2027 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.24% 4.23%
Unemployment 8.24% 9.11%
COLOMBIA | 2028 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.29% 4.21%
Unemployment 8.06% 8.55%
COLOMBIA | 2029 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.38% 4.22%
Unemployment 8.15% 7.95%
COLOMBIA | 2030 [Member]    
Macroeconomic variables [Line Items]    
GDP 4.45%  
Unemployment 8.16%