XML 267 R245.htm IDEA: XBRL DOCUMENT v3.25.4

Subsequent Events (Details Narrative)	Jan. 09, 2026 BRL (R$)
Nonadjusting Event [Member]
IfrsStatementLineItems [Line Items]
Distribution of interim dividend	R$ 2,000,000,000

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- References

No definition available.

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Namespace Prefix:	bsbr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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- References

No definition available.

+ Details

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

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: