v3.26.1
Net interest income - Summary of net interest income (Details) - EUR (€)
€ in Millions
 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Net Interest Income [Abstract]    
Interest income on loans € 15,697 € 15,730
Interest income on debt securities at amortised cost 826 656
Interest income on financial assets at fair value through OCI 1,051 803
Interest income on non-trading derivatives (hedge accounting) 2,502 4,889
Total interest income using effective interest rate method 20,075 22,079
Interest income on financial assets at fair value through profit or loss 2,451 2,652
Interest income on non-trading derivatives (no hedge accounting) 2,576 1,078
Interest income other 40 34
Total other interest income 5,067 3,763
Total interest income 25,141 25,842
Interest expense on deposits 6,001 6,807
Interest expense on debt securities in issue 2,579 2,562
Interest expense on subordinated loans 469 394
Interest expense on non-trading derivatives (hedge accounting) 3,161 5,528
Total interest expense using effective interest rate method 12,210 15,291
Interest expense on financial liabilities at fair value through profit or loss 1,999 2,166
Interest expense on non-trading derivatives (no hedge accounting) 2,540 1,029
Interest expense on lease liabilities 15 14
Interest expense other 47 52
Total other interest expense 4,601 3,261
Total interest expense 16,811 18,552
Net interest income 8,331 7,290
Negative interest income on liabilities 19 4
Negative interest expense on assets € 11 € 4