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Fair value of financial instruments - Schedule of financial instruments at fair value whose measurement was based on internal models (Levels 2 and 3) (Details) (Details) - EUR (€) € in Millions | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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Level 2 |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | € 163,796 | € 163,941 | € 133,874 |
Financial liabilities, at fair value | 198,377 | 179,766 | 166,542 |
Level 2 | Financial assets and liabilities | Financial assets held for trading |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 139,293 | 138,176 | 106,993 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Central banks |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 14,191 | 12,966 | 17,717 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Credit institutions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 25,815 | 26,546 | 14,061 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 27,986 | 24,602 | 11,418 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Debt and equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 14,470 | 11,115 | 8,683 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 56,831 | 62,947 | 55,114 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 39,716 | 47,519 | 44,987 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Exchange rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 1,332 | 1,583 | 836 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 1,490 | 1,879 | 2,210 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Index and securities options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 439 | 465 | 126 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Interest rate forwards |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 177 | 1,445 | 33 |
Level 2 | Financial assets and liabilities | Financial assets held for trading | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 13,677 | 10,056 | 6,922 |
Level 2 | Financial assets and liabilities | Hedging derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 3,924 | 5,652 | 5,297 |
Level 2 | Financial assets and liabilities | Hedging derivatives | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 3,690 | 5,390 | 4,665 |
Level 2 | Financial assets and liabilities | Hedging derivatives | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 91 | 2 | 2 |
Level 2 | Financial assets and liabilities | Hedging derivatives | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 143 | 260 | 630 |
Level 2 | Financial assets and liabilities | Non-trading financial assets mandatorily at fair value through profit or loss |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 2,465 | 1,505 | 2,050 |
Level 2 | Financial assets and liabilities | Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 899 | 763 | 815 |
Level 2 | Financial assets and liabilities | Non-trading financial assets mandatorily at fair value through profit or loss | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 54 | 205 | 539 |
Level 2 | Financial assets and liabilities | Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 1,512 | 537 | 696 |
Level 2 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 5,152 | 5,065 | 6,846 |
Level 2 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Central banks |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 0 |  |  |
Level 2 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Credit institutions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 413 | 408 | 459 |
Level 2 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 4,725 | 4,590 | 6,189 |
Level 2 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 14 | 67 | 198 |
Level 2 | Financial assets and liabilities | Financial assets at fair value through other comprehensive income |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 12,962 | 13,543 | 12,688 |
Level 2 | Financial assets and liabilities | Financial assets at fair value through other comprehensive income | Equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 19 | 5 | 5 |
Level 2 | Financial assets and liabilities | Financial assets at fair value through other comprehensive income | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 6,819 | 9,644 | 9,638 |
Level 2 | Financial assets and liabilities | Financial assets at fair value through other comprehensive income | Loans and advances |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 6,124 | 3,894 | 3,045 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 133,490 | 121,243 | 101,103 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Central banks |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 12,385 | 13,300 | 7,808 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Credit institutions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 27,058 | 26,284 | 17,862 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 36,120 | 18,984 | 19,837 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 50,248 | 56,205 | 49,380 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 33,597 | 41,283 | 39,395 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 121 | 2,295 | 2,207 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Exchange rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 903 | 1,057 | 549 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Index and securities options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 1,094 | 1,160 | 466 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Forwards on interest rate and variable income |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 1,951 | 1,276 | 101 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 12,582 | 9,134 | 6,662 |
Level 2 | Financial assets and liabilities | Financial liabilities held for trading | Short positions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 7,679 | 6,470 | 6,216 |
Level 2 | Financial assets and liabilities | Hedging derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 4,229 | 4,740 | 7,650 |
Level 2 | Financial assets and liabilities | Hedging derivatives | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 4,191 | 4,618 | 6,866 |
Level 2 | Financial assets and liabilities | Hedging derivatives | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 3 | 1 |
Level 2 | Financial assets and liabilities | Hedging derivatives | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 38 | 119 | 783 |
Level 2 | Financial assets and liabilities | FINANCIAL LIABILITIES DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 42,148 | 36,200 | 40,313 |
Level 2 | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 18,510 | 17,583 | 17,476 |
Level 3 |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 18,487 | 15,319 | 10,351 | € 8,290
Financial liabilities, at fair value | 1,110 | 1,352 | 1,227 | 925
Level 3 | Financial assets held for trading |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 6,496 | 3,930 | 2,086 | 383
Level 3 | Financial assets held for trading | Central banks |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 441 | 0 |  |
Level 3 | Financial assets held for trading | Credit institutions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 152 | 769 | 0 |
Level 3 | Financial assets held for trading | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 4,592 | 1,801 | 24 | 0
Level 3 | Financial assets held for trading | Derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 971 | 947 | 1,147 | 340
Level 3 | Financial assets held for trading | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 551 | 556 | 577 | 139
Level 3 | Financial assets held for trading | Exchange rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 39 | 2 | 9 | 4
Level 3 | Financial assets held for trading | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 39 | 30 | 153 | 39
Level 3 | Financial assets held for trading | Index and securities options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 120 | 241 | 235 | 48
Level 3 | Financial assets held for trading | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 222 | 118 | 173 | 110
Level 3 | Financial assets held for trading | Equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value |  | 0 | 1 | 1
Level 3 | Financial assets held for trading | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 340 | 413 | 914 | 42
Level 3 | Non-trading financial assets mandatorily at fair value through profit or loss |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 2,889 | 2,588 | 2,095 | 1,833
Level 3 | Non-trading financial assets mandatorily at fair value through profit or loss | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 171 | 505 | 287 | 239
Level 3 | Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 2,543 | 1,841 | 1,495 | 1,269
Level 3 | Non-trading financial assets mandatorily at fair value through profit or loss | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 175 | 242 | 313 | 325
Level 3 | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 34 | 106 | 181 | 427
Level 3 | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 14 | 20 | 31 | 5
Level 3 | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 20 | 86 | 150 | 422
Level 3 | Financial assets at fair value through other comprehensive income |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 9,061 | 8,675 | 5,989 | 5,647
Level 3 | Financial assets at fair value through other comprehensive income | Equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 272 | 375 | 492 | 700
Level 3 | Financial assets at fair value through other comprehensive income | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 887 | 1,047 | 559 | 229
Level 3 | Financial assets at fair value through other comprehensive income | Loans and advances |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 7,902 | 7,253 | 4,938 | 4,718
Level 3 | Financial liabilities held for trading |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 864 | 934 | 869 | 415
Level 3 | Financial liabilities held for trading | Derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 864 | 934 | 869 | 415
Level 3 | Financial liabilities held for trading | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 418 | 479 | 388 | 235
Level 3 | Financial liabilities held for trading | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 95 | 79 | 139 | 19
Level 3 | Financial liabilities held for trading | Exchange rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 34 | 0 | 8 | 0
Level 3 | Financial liabilities held for trading | Index and securities options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 151 | 294 | 187 | 42
Level 3 | Financial liabilities held for trading | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 166 | 82 | 147 | 119
Level 3 | FINANCIAL LIABILITIES DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 160 | 29 | € 151
Level 3 | Financial assets and liabilities | Financial assets held for trading |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 6,496 | 3,930 | 2,086 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Central banks |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 441 | 0 | 0 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Credit institutions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 152 | 769 | 0 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 4,592 | 1,801 | 24 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Debt and equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 340 | 413 | 915 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 971 | 947 | 1,147 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 551 | 556 | 577 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Exchange rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 39 | 2 | 9 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 39 | 30 | 153 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Index and securities options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 120 | 241 | 235 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Interest rate forwards |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | Financial assets held for trading | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 222 | 118 | 173 |
Level 3 | Financial assets and liabilities | Hedging derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 7 | 20 | 0 |
Level 3 | Financial assets and liabilities | Hedging derivatives | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 7 | 20 | 0 |
Level 3 | Financial assets and liabilities | Hedging derivatives | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | Hedging derivatives | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | Non-trading financial assets mandatorily at fair value through profit or loss |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 2,889 | 2,588 | 2,095 |
Level 3 | Financial assets and liabilities | Non-trading financial assets mandatorily at fair value through profit or loss | Equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 2,543 | 1,841 | 1,495 |
Level 3 | Financial assets and liabilities | Non-trading financial assets mandatorily at fair value through profit or loss | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 175 | 242 | 313 |
Level 3 | Financial assets and liabilities | Non-trading financial assets mandatorily at fair value through profit or loss | Loans and advances |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 171 | 505 | 287 |
Level 3 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 34 | 106 | 181 |
Level 3 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Central banks |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 0 |  |  |
Level 3 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Credit institutions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 14 | 20 | 31 |
Level 3 | Financial assets and liabilities | FINANCIAL ASSETS DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 20 | 86 | 150 |
Level 3 | Financial assets and liabilities | Financial assets at fair value through other comprehensive income |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 9,061 | 8,675 | 5,989 |
Level 3 | Financial assets and liabilities | Financial assets at fair value through other comprehensive income | Equity instruments |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 272 | 375 | 492 |
Level 3 | Financial assets and liabilities | Financial assets at fair value through other comprehensive income | Debt securities |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 887 | 1,047 | 559 |
Level 3 | Financial assets and liabilities | Financial assets at fair value through other comprehensive income | Loans and advances |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial assets, at fair value | 7,902 | 7,253 | 4,938 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 864 | 934 | 869 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Central banks |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Credit institutions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Customers |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 864 | 934 | 869 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 418 | 479 | 388 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 79 | 139 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Exchange rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 34 | 0 | 8 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Index and securities options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 151 | 294 | 187 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Forwards on interest rate and variable income |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 95 | 0 | 0 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 166 | 82 | 147 |
Level 3 | Financial assets and liabilities | Financial liabilities held for trading | Short positions |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | Hedging derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 19 | 12 | 6 |
Level 3 | Financial assets and liabilities | Hedging derivatives | Swaps |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 19 | 12 | 6 |
Level 3 | Financial assets and liabilities | Hedging derivatives | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | Hedging derivatives | Other derivatives |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 0 | 0 |
Level 3 | Financial assets and liabilities | FINANCIAL LIABILITIES DESIGNATED AT FAIR VALUE THROUGH PROFIT OR LOSS |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | 0 | 160 | 29 |
Level 3 | Interest rate options |  |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |  |
Financial liabilities, at fair value | € 227 | € 246 | € 323 |

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