v3.25.4
Net Interest Income and Net Gains (Losses) on Financial Assets/Liabilities at Fair Value through Profit or Loss - Net Gains (Losses) on Financial Assets/Liabilities at Fair Value through Profit or Loss (Detail) - Net Gains (Losses) on Financial Assets/Liabilities at Fair Value through Profit or Loss - EUR (€)
€ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Trading Income:      
Total net gains (losses) on financial assets/liabilities at fair value through profit or loss € 4,577 € 5,655 € 5,575
Trading Income:      
Trading Income:      
FIC Sales and Trading 4,963 5,045 5,116
Other trading income (loss) (211) 517 390
Total trading income (loss) 4,751 5,563 5,506
Non-trading financial assets mandatory at fair value through profit or loss:      
Trading Income:      
Net gains (losses) on non-trading financial assets mandatory at fair value through profit or loss 160 (65) 217
Non-trading financial assets mandatory at fair value through profit or loss: | Debt Securities      
Trading Income:      
Net gains (losses) on non-trading financial assets mandatory at fair value through profit or loss 58 (94) 89
Non-trading financial assets mandatory at fair value through profit or loss: | Equity Securities      
Trading Income:      
Net gains (losses) on non-trading financial assets mandatory at fair value through profit or loss 111 24 (10)
Non-trading financial assets mandatory at fair value through profit or loss: | Loans and loan commitments      
Trading Income:      
Net gains (losses) on non-trading financial assets mandatory at fair value through profit or loss (13) (8) 112
Non-trading financial assets mandatory at fair value through profit or loss: | Deposits      
Trading Income:      
Net gains (losses) on non-trading financial assets mandatory at fair value through profit or loss 0 (4) (5)
Non-trading financial assets mandatory at fair value through profit or loss: | Others non-trading financial assets mandatory at fair value through profit and loss      
Trading Income:      
Net gains (losses) on non-trading financial assets mandatory at fair value through profit or loss 4 18 31
Financial assets designated at fair value through profit or loss:      
Trading Income:      
Net gains (losses) on financial assets/liabilities designated at fair value through profit or loss (334) 158 (148)
Financial assets designated at fair value through profit or loss: | Loans and loan commitments      
Trading Income:      
Net gains (losses) on financial assets/liabilities designated at fair value through profit or loss 11 5 12
Financial assets designated at fair value through profit or loss: | Deposits      
Trading Income:      
Net gains (losses) on financial assets/liabilities designated at fair value through profit or loss 1 2 0
Financial assets designated at fair value through profit or loss: | Long-term debt      
Trading Income:      
Net gains (losses) on financial assets/liabilities designated at fair value through profit or loss (369) 157 (180)
Financial assets designated at fair value through profit or loss: | Other financial assets/liabilities designated at fair value through profit or loss      
Trading Income:      
Net gains (losses) on financial assets/liabilities designated at fair value through profit or loss € 23 € (7) € 20