v3.26.1
Loans and advances to central banks and credit institutions - Narrative (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of financial assets [line items]      
Financial assets € 300,026 € 283,497 € 243,203
Central banks and credit institutions      
Disclosure of financial assets [line items]      
Financial assets 119,631 112,767 110,549
Gross carrying amount | Financial instruments not credit-impaired | Stage 1      
Disclosure of financial assets [line items]      
Financial assets 196,509 196,514 176,697
Gross carrying amount | Financial instruments not credit-impaired | Stage 2 and 3      
Disclosure of financial assets [line items]      
Financial assets 1,480 597 203
Gross carrying amount | Financial instruments credit-impaired | Stage 2 and 3      
Disclosure of financial assets [line items]      
Financial assets 842 701 461
Gross carrying amount | Central banks and credit institutions | Financial instruments not credit-impaired | Stage 1      
Disclosure of financial assets [line items]      
Financial assets 78,623 72,084 78,321
Gross carrying amount | Central banks and credit institutions | Financial instruments not credit-impaired | Stage 2 and 3      
Disclosure of financial assets [line items]      
Financial assets 0 0 0
Gross carrying amount | Central banks and credit institutions | Financial instruments credit-impaired | Stage 2 and 3      
Disclosure of financial assets [line items]      
Financial assets 0 0 0
Accumulated impairment      
Disclosure of financial assets [line items]      
Financial assets (520) (349) (286)
Accumulated impairment | Central banks and credit institutions | Financial instruments not credit-impaired | Stage 1      
Disclosure of financial assets [line items]      
Financial assets (4) (5) (9)
Accumulated impairment | Central banks and credit institutions | Financial instruments not credit-impaired | Stage 2 and 3      
Disclosure of financial assets [line items]      
Financial assets 0 0 0
Accumulated impairment | Central banks and credit institutions | Financial instruments credit-impaired | Stage 2 and 3      
Disclosure of financial assets [line items]      
Financial assets € 0 € 0 € 0