XML 127 R113.htm IDEA: XBRL DOCUMENT
v3.21.1

16 Property, plant and equipment (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant, and equipment, beginning | R$ 314,393 | R$ 267,612 | R$ 255,050
Additions | 42,407 | 78,159 | 50,645
Transfers | (57,457) | 2,830 | 1,458
Write-offs and disposals | (277) | (593) | (108)
Depreciation | (30,815) | (33,615) | (39,433)
Property, plant, and equipment, ending | 268,251 | 314,393 | R$ 267,612
Land [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant, and equipment, beginning | 92,962 |  |
Transfers | 1,251 |  |
Property, plant, and equipment, ending | 94,213 | 92,962 |
Buildings [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant, and equipment, beginning | 41,705 |  |
Additions | 5,430 |  |
Transfers | (713) |  |
Depreciation | (1,075) |  |
Property, plant, and equipment, ending | 45,347 | 41,705 |
Equipment [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant, and equipment, beginning | 152,273 |  |
Additions | 26,055 |  |
Transfers | (49,188) |  |
Write-offs and disposals | (174) |  |
Depreciation | (27,950) |  |
Property, plant, and equipment, ending | 101,016 | 152,273 |
Transportation equipment [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant, and equipment, beginning | 1,984 |  |
Additions | 298 |  |
Transfers | 1,351 |  |
Depreciation | (664) |  |
Property, plant, and equipment, ending | 2,969 | 1,984 |
Furniture and fixtures [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant, and equipment, beginning | 18,219 |  |
Additions | 4,087 |  |
Transfers | (3,712) |  |
Write-offs and disposals | (103) |  |
Depreciation | (1,072) |  |
Property, plant, and equipment, ending | 17,419 | 18,219 |
Other [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Property, plant, and equipment, beginning | 7,250 |  |
Additions | 6,537 |  |
Transfers | (6,446) |  |
Depreciation | (54) |  |
Property, plant, and equipment, ending | R$ 7,287 | R$ 7,250 |

X
- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_AdditionsOtherThanThroughBusinessCombinationsPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 75 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_75_a&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DepreciationPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
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 2020-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e&doctype=Standard -URIDate 2020-01-01 + 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_a&doctype=Standard -URIDate 2020-01-01 + 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 2020-01-01 -Paragraph 98 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_98_a&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_WritedownsReversalsOfPropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

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