XML 205 R129.htm IDEA: XBRL DOCUMENT
v3.25.1

Property, plant and equipment (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
IfrsStatementLineItems [Line Items] |  |  |
Property, plant, and equipment, beginning | R$ 474,559 | R$ 338,939 | R$ 291,157
Additions | 100,728 | 147,249 | 73,668
Transfers | 25,663 | 20,536 | 2,049
Write-offs and disposals | (287) | (727) | (1,056)
Depreciation | (39,115) | (31,438) | (26,879)
Property, plant, and equipment, ending | 561,548 | 474,559 | 338,939
Land [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Property, plant, and equipment, beginning | 94,228 | 94,228 | 94,213
Additions |  |  |
Transfers | 523 |  | 15
Write-offs and disposals |  |  |
Depreciation |  |  |
Property, plant, and equipment, ending | 94,751 | 94,228 | 94,228
Buildings [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Property, plant, and equipment, beginning | 80,946 | 47,968 | 45,498
Additions | 7,835 | 5,832 | 4,657
Transfers | 1,783 | 28,459 | (976)
Write-offs and disposals |  | (14) | (45)
Depreciation | (2,242) | (1,299) | (1,166)
Property, plant, and equipment, ending | 88,322 | 80,946 | 47,968
Office equipment [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Property, plant, and equipment, beginning | 130,187 | 120,865 | 115,154
Additions | 29,434 | 55,449 | 27,849
Transfers | 42,153 | (18,121) | 1,988
Write-offs and disposals | (256) | (641) | (781)
Depreciation | (29,643) | (27,365) | (23,345)
Property, plant, and equipment, ending | 171,875 | 130,187 | 120,865
Transport Equipments [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Property, plant, and equipment, beginning | 4,241 | 2,495 | 2,472
Additions | 17,597 |  | 175
Transfers | 2,628 | 2,432 | 658
Write-offs and disposals |  |  | (3)
Depreciation | (866) | (686) | (807)
Property, plant, and equipment, ending | 23,600 | 4,241 | 2,495
Fixtures and fittings [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Property, plant, and equipment, beginning | 25,173 | 23,496 | 22,079
Additions | 1,111 | 6,522 | 2,646
Transfers | (517) | (3,060) | 394
Write-offs and disposals | (31) | (72) | (149)
Depreciation | (2,136) | (1,713) | (1,474)
Property, plant, and equipment, ending | 23,600 | 25,173 | 23,496
Other property, plant and equipment [member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Property, plant, and equipment, beginning | 139,784 | 49,887 | 11,741
Additions | 44,751 | 79,446 | 38,341
Transfers | (20,907) | 10,826 | (30)
Write-offs and disposals |  |  | (78)
Depreciation | (4,228) | (375) | (87)
Property, plant, and equipment, ending | R$ 159,400 | R$ 139,784 | R$ 49,887

X
- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Total for all business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_IncreaseDecreaseThroughTransfersPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_PropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount recognised resulting from the write-down of property, plant and equipment to its recoverable amount or reversals of those write-downs. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 98 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_98_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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

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

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_LandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_BuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_OfficeEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=sbs_TransportEquipmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_FixturesAndFittingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_OtherPropertyPlantAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |