XML 188 R166.htm IDEA: XBRL DOCUMENT
v3.25.4

Debt Instruments Eligible as Capital (Details) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024
IfrsStatementLineItems [Line Items] |  |
Debt instruments eligible to compose capital | R$ 28,113,937 | R$ 23,137,784
Tier I I 02 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Debt instruments eligible to compose capital issuance | Nov-21 |
Debt instruments eligible to compose capital maturity | Nov-31 |
Debt instruments eligible to compose capital issuance value | 5,300 |
Debt instruments eligible to compose capital interest rate (p.a) | CDI+2% |
Debt instruments eligible to compose capital | R$ 9,321,771 | 7,995,673
Tier I I 03 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Debt instruments eligible to compose capital issuance | Dec-21 |
Debt instruments eligible to compose capital maturity | Dec-31 |
Debt instruments eligible to compose capital issuance value | 200 |
Debt instruments eligible to compose capital interest rate (p.a) | CDI+2% |
Debt instruments eligible to compose capital | R$ 351,467 | 301,468
Tier I I 04 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Debt instruments eligible to compose capital issuance | Oct-23 |
Debt instruments eligible to compose capital maturity | Oct-33 |
Debt instruments eligible to compose capital issuance value | 6,000 |
Debt instruments eligible to compose capital interest rate (p.a) | CDI+1.6% |
Debt instruments eligible to compose capital | R$ 8,070,433 | 6,949,991
Tier I 02 [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Debt instruments eligible to compose capital issuance | Sep-24 |
Debt instruments eligible to compose capital maturity | No Term |
Debt instruments eligible to compose capital issuance value | 7,600 |
Debt instruments eligible to compose capital interest rate (p.a) | CDI+1,4% |
Debt instruments eligible to compose capital | R$ 7,982,784 | R$ 7,890,652
Tier I [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Debt instruments eligible to compose capital issuance | Dec-25 |
Debt instruments eligible to compose capital maturity | Dec-35 |
Debt instruments eligible to compose capital issuance value | 2,363 |
Debt instruments eligible to compose capital interest rate (p.a) | CDI+0,65% |
Debt instruments eligible to compose capital | R$ 2,387,482 |

X
- References No definition available. + Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapital
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalInterestRatePA
Namespace Prefix: | bsbr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalIssuance
Namespace Prefix: | bsbr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalIssuanceValue
Namespace Prefix: | bsbr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalMaturity
Namespace Prefix: | bsbr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_IfrsStatementLineItems
Namespace Prefix: | bsbr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalAxis=bsbr_TierII02Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalAxis=bsbr_TierII03Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalAxis=bsbr_TierII04Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalAxis=bsbr_TierI02Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_DebtInstrumentsEligibleToComposeCapitalAxis=bsbr_TierIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |