XML 398 R316.htm IDEA: XBRL DOCUMENT
v3.26.1

Other disclosures - Schedule of memorandum items by maturity (Details) - EUR (€) € in Millions | Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | --- | ---
MEMORANDUM ITEMS |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | € 486,801 | € 454,255 | € 408,297
Loan commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 321,234 | 302,861 | 279,589
Financial guarantees granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 17,449 | 16,901 | 15,435
Other commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 148,118 | 134,493 | 113,273
Within 3 months | MEMORANDUM ITEMS |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 256,966 | 230,359 | 214,099
Within 3 months | Loan commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 146,340 | 133,084 | 125,083
Within 3 months | Financial guarantees granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 8,348 | 5,103 | 7,870
Within 3 months | Other commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 102,278 | 92,172 | 81,146
3 to 12 months | MEMORANDUM ITEMS |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 58,431 | 63,231 | 53,840
3 to 12 months | Loan commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 31,411 | 35,747 | 31,658
3 to 12 months | Financial guarantees granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 6,018 | 6,803 | 4,734
3 to 12 months | Other commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 21,002 | 20,681 | 17,448
1 to 3 years | MEMORANDUM ITEMS |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 59,015 | 74,045 | 66,697
1 to 3 years | Loan commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 45,392 | 57,157 | 55,344
1 to 3 years | Financial guarantees granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 1,803 | 3,691 | 1,654
1 to 3 years | Other commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 11,820 | 13,197 | 9,699
3 to 5 years | MEMORANDUM ITEMS |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 62,358 | 63,113 | 51,276
3 to 5 years | Loan commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 58,085 | 57,285 | 47,204
3 to 5 years | Financial guarantees granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 630 | 796 | 686
3 to 5 years | Other commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 3,643 | 5,032 | 3,386
More than 5 years | MEMORANDUM ITEMS |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 50,031 | 23,507 | 22,385
More than 5 years | Loan commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 40,006 | 19,588 | 20,300
More than 5 years | Financial guarantees granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | 650 | 508 | 491
More than 5 years | Other commitments granted |  |  |
Measurement of financial assets and liabilities and recognition of fair value changes |  |  |
Exposure to credit risk on loan commitments and financial guarantee contracts | € 9,375 | € 3,411 | € 1,594

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the exposure to credit risk on loan commitments and financial guarantee contracts. [Refer: Loan commitments [member]; Financial guarantee contracts [member]; Credit risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 66 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_66&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 71 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_71&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 70 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_70&doctype=Standard -URIDate 2025-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_35H&doctype=Standard -URIDate 2025-03-27 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 35M -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_35M&doctype=Standard -URIDate 2025-03-27 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 35I -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_35I&doctype=Standard -URIDate 2025-03-27 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 70 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_70&doctype=Standard -URIDate 2025-03-27 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 66 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_66&doctype=Standard -URIDate 2025-03-27 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 71 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_71&doctype=Standard -URIDate 2025-03-27 + Details
Name: | ifrs-full_ExposureToCreditRiskOnLoanCommitmentsAndFinancialGuaranteeContracts
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=san_ContingentLiabilitiesAndContingentCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_LoanCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=ifrs-full_FinancialGuaranteeContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=san_OtherCommitmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanThreeMonthsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeMonthsAndNotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsAndNotLaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |