XML 256 R180.htm IDEA: XBRL DOCUMENT
v3.25.1

Other operating income (expenses), net (Details Narrative) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 BRL (R$)
Other Operating Income Expenses Net |
Related to estimated losses with construction works and projects | R$ 164,022
Expenses related to the privatization process | R$ 99,653

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

X
- References No definition available. + Details
Name: | sbs_ExpensesRelatedToPrivatizationProcess
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | sbs_RelatedToEstimatedLossesWithWorksAndProjects
Namespace Prefix: | sbs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration