XML 170 R129.htm IDEA: XBRL DOCUMENT v3.24.0.1
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, 2023
Dec. 31, 2022
Disclosure Of Financial Instrument Exposure [Line Items]    
Financial Assets non-derivative € 18,979 € 52,194
Financial Liabilities non-derivative 16 1,637
Off balance sheet commitments 1,030 9,055
USD LIBOR    
Disclosure Of Financial Instrument Exposure [Line Items]    
Financial Assets non-derivative 915 30,040
Financial Liabilities non-derivative 16 1,637
Off balance sheet commitments 9 7,644
WIBOR    
Disclosure Of Financial Instrument Exposure [Line Items]    
Financial Assets non-derivative 18,064 22,154
Financial Liabilities non-derivative
Off balance sheet commitments € 1,021 € 1,411