XML 108 R97.htm IDEA: XBRL DOCUMENT v3.23.1

Trade receivables (Details Narrative) R$ in Thousands	Dec. 31, 2022 BRL (R$)
Trade Receivables
Judicial bonds	R$ 2,807,318

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- References

No definition available.

+ Details

Name:	sbs_JudicialBonds
Namespace Prefix:	sbs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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No definition available.

+ Details

Name:	sbs_TradeReceivablesAbstract
Namespace Prefix:	sbs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration