v3.26.1
Risk management - Disclosure of liquidity coverage ratio by component (Details) - Liquidity risk - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of maturity analysis for financial assets held for managing liquidity risk [line items]      
High-quality liquid assets-HQLAs € 301,618 € 315,524 € 348,028
Total net cash outflows (denominator) 208,388 206,889 209,892
Cash outflows 287,044 278,760 282,982
Cash inflows € 78,656 € 71,871 € 73,090
Consolidated LCR ratio (%) 145.00% 153.00% 166.00%
Group LCR ratio (%) 155.00% 168.00%  
NSFR ratio (%) 126.00% 126.00% 123.00%