XML 147 R125.htm IDEA: XBRL DOCUMENT v3.25.4

Derivative financial instruments (Details 4) - BRL (R$) R$ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Swap contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	R$ 1,091,352,145	R$ 858,277,413
Option contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	724,241,728	538,580,487
Futures contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	567,709,896	785,337,224
Forward Contracts And Other [Member]
IfrsStatementLineItems [Line Items]
Notional amount	480,123,205	443,722,256
Stock Exchange [Member] | Swap contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	71,829,722	167,924,413
Stock Exchange [Member] | Option contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	539,875,480	415,336,707
Stock Exchange [Member] | Futures contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	567,339,980	781,708,536
Stock Exchange [Member] | Forward Contracts And Other [Member]
IfrsStatementLineItems [Line Items]
Notional amount	20,496,769	55,754,746
Over The Countr [Member] | Swap contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	1,019,522,423	690,353,000
Over The Countr [Member] | Option contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	184,366,248	123,243,780
Over The Countr [Member] | Futures contract [member]
IfrsStatementLineItems [Line Items]
Notional amount	369,916	3,628,688
Over The Countr [Member] | Forward Contracts And Other [Member]
IfrsStatementLineItems [Line Items]
Notional amount	R$ 459,626,436	R$ 387,967,510

X

- References

No definition available.

+ Details

Name:	bsbr_IfrsStatementLineItems
Namespace Prefix:	bsbr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ 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_NotionalAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_SwapContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_OptionContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_FuturesContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=bsbr_ForwardContractsAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	bsbr_ClassesOfMarketTradingAxis=bsbr_StockExchangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	bsbr_ClassesOfMarketTradingAxis=bsbr_OverTheCountrMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: