XML 49 R35.htm IDEA: XBRL DOCUMENT
v3.21.1

28 Operating revenue | 12 Months Ended
--- | ---
Dec. 31, 2020
Operating Revenue |
Operating revenue |
28 | Operating revenue
(a) Revenue from sanitation services:
| 2020 | 2019 | 2018
Metropolitan Region of São Paulo | 10,722,384 | 11,849,776 | 10,295,509
Regional Systems | 4,435,396 | 4,284,256 | 3,958,100
Total | 15,157,780 | 16,134,032 | 14,253,609
(b) Reconciliation between gross operating income and net operating income:
| 2020 | 2019 | 2018
Revenue from sanitation services (i) | 15,157,780 | 16,134,032 | 14,253,609
Construction revenue | 3,716,616 | 2,946,566 | 2,802,670
Sales tax | (1,009,358) | (1,035,051) | (916,808)
Regulatory, Control and Oversight Fee (TRCF) | (67,497) | (61,893) | (54,377)
Net revenue | 17,797,541 | 17,983,654 | 16,085,094
| (i) | Includes the amount of R$ 72,962 corresponding to the TRCF charged from customers from the municipalities regulated by ARSESP (R$ 70,122 in 2019).

X
- Definition The entire disclosure for revenue. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 10 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_10_e&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DisclosureOfRevenueExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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