v3.26.1
Other disclosures - Schedule of undiscounted contractual maturities of financial liabilities at amortized cost by maturity (Details) - EUR (€)
€ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost € 1,411,361 € 1,465,713 € 1,439,426
On demand      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 699,498 712,248 712,261
Within 3 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 268,084 251,730 240,337
3 to 12 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 146,183 167,875 173,287
1 to 3 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 131,205 154,134 150,581
3 to 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 71,832 88,099 86,432
More than 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 94,559 91,627 76,528
Deposits      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 1,068,312 1,102,126 1,099,444
Deposits | On demand      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 687,708 699,007 698,595
Deposits | Within 3 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 221,487 207,554 204,001
Deposits | 3 to 12 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 95,553 117,431 109,311
Deposits | 1 to 3 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 36,937 43,090 51,191
Deposits | 3 to 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 9,204 19,248 20,761
Deposits | More than 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 17,423 15,796 15,585
Central banks      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 18,454 24,904 48,817
Central banks | On demand      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 857 17 168
Central banks | Within 3 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 8,497 9,082 20,334
Central banks | 3 to 12 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 4,581 11,026 6,853
Central banks | 1 to 3 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 2,892 4,772 16,846
Central banks | 3 to 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 0 0 4,581
Central banks | More than 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 1,627 7 35
Credit institutions      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 74,642 89,680 80,548
Credit institutions | On demand      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 6,298 13,634 6,884
Credit institutions | Within 3 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 34,993 27,170 25,642
Credit institutions | 3 to 12 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 11,677 19,258 21,334
Credit institutions | 1 to 3 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 12,197 15,674 13,079
Credit institutions | 3 to 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 1,841 6,482 5,924
Credit institutions | More than 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 7,636 7,462 7,685
Customers      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 975,216 987,542 970,079
Customers | On demand      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 680,553 685,356 691,543
Customers | Within 3 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 177,997 171,302 158,025
Customers | 3 to 12 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 79,295 87,147 81,124
Customers | 1 to 3 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 21,848 22,644 21,266
Customers | 3 to 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 7,363 12,766 10,256
Customers | More than 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 8,160 8,327 7,865
Marketable debt securities      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 306,952 323,671 299,795
Marketable debt securities | On demand      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 0 0 0
Marketable debt securities | Within 3 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 37,742 36,315 28,258
Marketable debt securities | 3 to 12 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 47,782 48,973 62,935
Marketable debt securities | 1 to 3 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 93,250 102,306 91,492
Marketable debt securities | 3 to 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 62,071 61,260 56,944
Marketable debt securities | More than 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 66,107 74,817 60,166
Other financial liabilities      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 36,097 39,916 40,187
Other financial liabilities | On demand      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 11,790 13,241 13,666
Other financial liabilities | Within 3 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 8,855 7,861 8,078
Other financial liabilities | 3 to 12 months      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 2,848 1,471 1,041
Other financial liabilities | 1 to 3 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 1,018 8,738 7,898
Other financial liabilities | 3 to 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost 557 7,591 8,727
Other financial liabilities | More than 5 years      
Measurement of financial assets and liabilities and recognition of fair value changes      
Undiscounted financial liabilities at amortised cost € 11,029 € 1,014 € 777