v3.25.2
Other disclosures - Disclosure of gross exposure by stages of impairment (Details) - Home purchase loans - Spain - Gross carrying amount - EUR (€)
€ in Millions
Jun. 30, 2025
Dec. 31, 2024
Disclosure of credit risk exposure [line items]    
Financial assets € 59,927 € 59,316
With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 59,726 59,108
Less than or equal to 40% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 17,180 17,205
More than 40% or less than 60% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 20,202 20,085
More than 60% and less than 80% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 18,391 17,955
More than 80% and less or equal to 100% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 3,103 2,925
More than 100% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 850 938
Credit impaired    
Disclosure of credit risk exposure [line items]    
Financial assets 729 789
Credit impaired | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 723 778
Credit impaired | Less than or equal to 40% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 133 114
Credit impaired | More than 40% or less than 60% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 185 167
Credit impaired | More than 60% and less than 80% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 169 189
Credit impaired | More than 80% and less or equal to 100% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets 107 130
Credit impaired | More than 100% | With collateral    
Disclosure of credit risk exposure [line items]    
Financial assets € 129 € 178