XML 228 R206.htm IDEA: XBRL DOCUMENT
v3.25.4

Equity instrument income (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Equity Instrument Income |  |  |
Financial Assets Measured At Fair Value Through Profit Or Loss | R$ 5,134 | R$ 31,626 | R$ 18,658
Financial Assets Measured At Fair Value Through Other Comprehensive Income | 80,394 | 52,021 | 3,521
Total | R$ 85,528 | R$ 83,647 | R$ 22,179

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

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

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

X
- Definition The amount of trading income (expense) relating to equity instruments. [Refer: Equity instruments held; Trading income (expense)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_112_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_TradingIncomeExpenseOnEquityInstruments
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration