v3.26.1
Risk management - Schedule of balance sheet items subject to trading market risk (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Aug. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Cash, cash balances at central banks and other deposits on demand € 152,281 € 96,923 € 192,208 € 220,342  
Financial assets held for trading 252,318   230,253 176,921  
Non-trading financial assets mandatorily at fair value through profit or loss 7,761   6,130 5,910  
Financial assets designated at fair value through profit or loss 8,046   7,915 9,773  
Financial assets at fair value through other comprehensive income 74,612   89,898 83,308  
Financial assets at amortised cost 1,202,689   1,203,707 1,191,403  
Hedging derivatives (assets) 3,931   5,672 5,297  
Changes in the fair value of hedged items in portfolio hedges of interest rate risk 50   (704) (788)  
Other assets 8,719   8,559 8,856  
TOTAL ASSETS 1,867,515   1,837,081 1,797,062  
Financial liabilities held for trading 171,546   152,151 122,270  
Financial liabilities designated at fair value through profit or loss 42,148   36,360 40,367  
Financial liabilities at amortized cost 1,421,184   1,484,322 1,468,703  
Hedging derivatives (liabilities) 4,248   4,752 7,656  
Changes in the fair value of hedged items in portfolio hedges of interest rate risk 49   (9) 55  
Other liabilities 15,937   16,344 17,598  
TOTAL LIABILITIES 1,754,767   1,729,754 1,692,821  
TOTAL EQUITY 112,748   € 107,327 € 104,241 € 97,585
Market risk          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Cash, cash balances at central banks and other deposits on demand 152,281        
Financial assets held for trading 252,318        
Non-trading financial assets mandatorily at fair value through profit or loss 7,761        
Financial assets designated at fair value through profit or loss 8,046        
Financial assets at fair value through other comprehensive income 74,612        
Financial assets at amortised cost 1,202,689        
Hedging derivatives (assets) 3,931        
Changes in the fair value of hedged items in portfolio hedges of interest rate risk 50        
Other assets 165,827        
TOTAL ASSETS 1,867,515        
Financial liabilities held for trading 171,546        
Financial liabilities designated at fair value through profit or loss 42,148        
Financial liabilities at amortized cost 1,421,184        
Hedging derivatives (liabilities) 4,248        
Changes in the fair value of hedged items in portfolio hedges of interest rate risk 49        
Other liabilities 115,592        
TOTAL LIABILITIES 1,754,767        
TOTAL EQUITY 112,748        
VaR          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Financial assets held for trading 252,318        
Non-trading financial assets mandatorily at fair value through profit or loss 5,815        
Financial assets at fair value through other comprehensive income 2,281        
Financial liabilities held for trading 171,546        
Interest rate          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Cash, cash balances at central banks and other deposits on demand 152,281        
Changes in the fair value of hedged items in portfolio hedges of interest rate risk 50        
Changes in the fair value of hedged items in portfolio hedges of interest rate risk 49        
Interest rate, spread          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Non-trading financial assets mandatorily at fair value through profit or loss 1,946        
Financial assets designated at fair value through profit or loss 8,046        
Financial assets at fair value through other comprehensive income 72,331        
Financial assets at amortised cost 1,202,689        
Financial liabilities designated at fair value through profit or loss 42,148        
Financial liabilities at amortized cost 1,421,184        
Interest rate, exchange rate          
Disclosure of nature and extent of risks arising from financial instruments [line items]          
Hedging derivatives (assets) 3,931        
Hedging derivatives (liabilities) € 4,248