XML 301 R260.htm IDEA: XBRL DOCUMENT v3.24.0.1
Derivatives and hedge accounting - Additional information (Details)
 12 Months Ended
Dec. 31, 2023
EUR (€)
Dec. 31, 2022
EUR (€)
-  fair value hedges | Euro    
Net Interest Income at Risk [Line Items]    
Average rate of hedging instrument 2.76% 2.75%
-  fair value hedges | US Dollar    
Net Interest Income at Risk [Line Items]    
Average rate of hedging instrument 3.93% 3.86%
-  fair value hedges | Hedged item affected statement of profit or loss    
Net Interest Income at Risk [Line Items]    
Derivative financial liabilities held for hedging € 113,000,000 € 244,000,000
Cash flow hedges | Euro | Average    
Net Interest Income at Risk [Line Items]    
Fixed interest rate 1.26% 0.51%
Cash flow hedges | US Dollar | – Cross currency swaps    
Net Interest Income at Risk [Line Items]    
Average foreign exchange rate 0.98 0.99
Cash flow hedges | US Dollar | Average | – Interest rate swaps    
Net Interest Income at Risk [Line Items]    
Fixed interest rate 4.33% 1.96%
Cash flow hedges | Polish Zloty | Average | – Interest rate swaps    
Net Interest Income at Risk [Line Items]    
Fixed interest rate 4.09% 3.27%
Cash flow hedges | Australian Dollar | – Cross currency swaps    
Net Interest Income at Risk [Line Items]    
Average foreign exchange rate 1.58 1.58
Cash flow hedges | Australian Dollar | Average | – Interest rate swaps    
Net Interest Income at Risk [Line Items]    
Fixed interest rate 2.80% 1.28%
Cash flow hedges | Hedged item affected statement of profit or loss    
Net Interest Income at Risk [Line Items]    
Derivative financial liabilities held for hedging € 458,000,000 € 1,275,000,000
-  hedges of net investments in foreign operations | US Dollar    
Net Interest Income at Risk [Line Items]    
Average foreign exchange rate 1.08 1.06
-  hedges of net investments in foreign operations | Polish Zloty    
Net Interest Income at Risk [Line Items]    
Average foreign exchange rate 4.54 4.68
-  hedges of net investments in foreign operations | Australian Dollar    
Net Interest Income at Risk [Line Items]    
Average foreign exchange rate 1.63 1.52
-  hedges of net investments in foreign operations | Thai Baht    
Net Interest Income at Risk [Line Items]    
Average foreign exchange rate 37.65 36.87
-  hedges of net investments in foreign operations | Hedged item affected statement of profit or loss    
Net Interest Income at Risk [Line Items]    
Derivative financial liabilities held for hedging € 92,000,000 € 83,000,000
Financial assets at fair value through profit or loss | -  fair value hedges    
Net Interest Income at Risk [Line Items]    
Derivative financial assets held for hedging 716,000,000 836,000,000
Financial assets at fair value through profit or loss | Cash flow hedges    
Net Interest Income at Risk [Line Items]    
Derivative financial assets held for hedging 440,000,000 814,000,000
Financial assets at fair value through profit or loss | -  hedges of net investments in foreign operations    
Net Interest Income at Risk [Line Items]    
Derivative financial assets held for hedging € 100,000,000 € 119,000,000