XML 186 R129.htm IDEA: XBRL DOCUMENT v3.25.0.1
Risk management - Non-derivative financial instruments to transition to alternative benchmarks (Details) - Non-derivative financial instruments to transition to alternative benchmarks - EUR (€)
€ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Financial Instrument Exposure [Line Items]    
Financial assets € 19,202 € 18,979
Financial liabilities 134 16
Off Balance Sheet Commitments Nominal Amount 1,544 1,030
USD LIBOR [Member]    
Disclosure Of Financial Instrument Exposure [Line Items]    
Financial assets   915
Financial liabilities   16
Off Balance Sheet Commitments Nominal Amount   9
WIBOR    
Disclosure Of Financial Instrument Exposure [Line Items]    
Financial assets 19,202 18,064
Financial liabilities 134  
Off Balance Sheet Commitments Nominal Amount € 1,544 € 1,021