v3.25.4
Valuation results and net trading income - Summary of valuation results and net trading income (Details) - EUR (€)
€ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Valuation Results And Net Trading Income [Line Items]      
Securities trading results € 4,801 € 996 € 873
Derivatives trading results (3,053) 207 116
Other trading results 263 336 273
Change in fair value of assets and liabilities (hedged items) (1,078) (1,043) (1,679)
Valuation results on assets and liabilities designated at FVPL (excluding trading) 8 32 (128)
Foreign exchange transactions results 2,175 (105) 1,230
Valuation results and net trading income 5,789 1,614 (1,732)
-  fair value hedges      
Valuation Results And Net Trading Income [Line Items]      
Change in fair value of derivatives relating to 1,111 1,016 1,606
–  cash flow hedges (ineffective portion)      
Valuation Results And Net Trading Income [Line Items]      
Change in fair value of derivatives relating to 10 35 48
–  other non-trading derivatives      
Valuation Results And Net Trading Income [Line Items]      
Change in fair value of derivatives relating to € 1,550 € 140 € (4,071)