XML 139 R130.htm IDEA: XBRL DOCUMENT v3.24.1.1.u2

Equity (Details) - shares	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
IfrsStatementLineItems [Line Items]
Number of shares	683,509,869	683,509,869
Percentage of shares	100.00%	100.00%
Sao Paulo State [Member]
IfrsStatementLineItems [Line Items]
Number of shares	343,506,664	343,506,664
Percentage of shares	50.30%	50.30%
Other Shareholders In Brazil [Member]
IfrsStatementLineItems [Line Items]
Number of shares	266,922,203	257,339,417
Percentage of shares	39.00%	37.60%
Other Shareholders Abroads [Member]
IfrsStatementLineItems [Line Items]
Number of shares	73,081,002	82,663,788
Percentage of shares	10.70%	12.10%

X

- Definition

The number of shares issued by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2023-03-23

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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X

- References

No definition available.

+ Details

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Namespace Prefix:	sbs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

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Namespace Prefix:
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X

- Details

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X

- Details

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