Financial Instruments Carried at Fair Value - Sensitivity Analysis by Type of Instrument (Detail) - Valuation
technique
unobservable
parameters
(Level 3) - EUR (€) € in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
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|---|---|---|---|---|
| Positive fair value movement from using reasonable possible alternatives | ||||
| Securities: | ||||
| Debt securities | [1] | € 237 | € 308 | |
| Commercial mortgage-backed securities | [1] | 13 | 17 | |
| Mortgage and other asset-backed securities | [1] | 10 | 11 | |
| Corporate, sovereign and other debt securities | [1] | 214 | 280 | |
| Equity securities | [1] | 102 | 78 | |
| Derivatives: | ||||
| Credit | [1] | 261 | 207 | |
| Equity | [1] | 74 | 36 | |
| Interest related | [1] | 660 | 798 | |
| Foreign Exchange | [1] | 64 | 56 | |
| Other | [1] | 222 | 110 | |
| Loans | [1] | 475 | 458 | |
| Other | [1] | 0 | 0 | |
| Total | [1] | 2,094 | 2,052 | |
| Negative fair value movement from using reasonable possible alternatives | ||||
| Securities: | ||||
| Debt securities | [1] | 219 | 276 | |
| Commercial mortgage-backed securities | [1] | 13 | 17 | |
| Mortgage and other asset-backed securities | [1] | 9 | 11 | |
| Corporate, sovereign and other debt securities | [1] | 197 | 248 | |
| Equity securities | [1] | 74 | 77 | |
| Derivatives: | ||||
| Credit | [1] | 127 | 105 | |
| Equity | [1] | 36 | 33 | |
| Interest related | [1] | 339 | 337 | |
| Foreign Exchange | [1] | 46 | 24 | |
| Other | [1] | 61 | 105 | |
| Loans | [1] | 394 | 387 | |
| Other | [1] | 0 | 0 | |
| Total | [1] | € 1,294 | € 1,343 | |
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