XML 158 R136.htm IDEA: XBRL DOCUMENT
v3.25.4

Loans and advances to clients (Details 4) - BRL (R$) R$ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
--- | --- | ---
By Maturity |  |
Under 1 year | R$ 321,881,721 | R$ 320,774,167
From 1 and 5 years | 200,999,058 | 199,768,490
Over 5 years | 79,159,210 | 79,145,187
Loans and advances to customers, gross | 602,039,989 | 599,687,844
By Internal risk classification |  |
Low | 411,269,061 | 443,671,010
Medium-low | 135,638,317 | 105,285,608
Medium | 18,147,181 | 16,421,302
Medium - high | 11,600,825 | 11,575,874
High | 25,384,605 | 22,734,050
Loans and advances to customers, gross | R$ 602,039,989 | R$ 599,687,844

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

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

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

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

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

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

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

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

X
- References No definition available. + Details
Name: | bsbr_LoansAndAdvancesToCustomersGrossMaturityBetween1And5Year
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | bsbr_LoansAndAdvancesToCustomersGrossMaturityLessThan1Year
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | bsbr_LoansAndAdvancesToCustomersGrossMaturityMoreThan5Years
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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