XML 114 R100.htm IDEA: XBRL DOCUMENT v3.21.1
12 Investments (Details) - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Summary of investments [Line Items]        
Equity R$ 22,793,704 R$ 21,635,783 R$ 19,551,688 R$ 17,513,009
Dividends distributed 231,611 800,352    
Other comprehensive income 511,169 (363,076) (10,994)  
Profit for the year 973,318 3,367,517 2,835,068  
Investments 63,417 53,187    
Other comprehensive income 17 (17) 0  
Other investments [member]        
Summary of investments [Line Items]        
Investments 6,099 365    
Overall total 63,417 53,187    
Saneaqua mairinque [member]        
Summary of investments [Line Items]        
Equity [1] 4,013 4,783 5,720  
Dividends distributed 0      
Other comprehensive income 17      
Profit for the year [1] (770) (871) (790)  
Profit for the year - change in the equity [2] 0      
Investments 0 1,434    
Dividends distributed - change in the equity 0      
Reclassification [3] (1,203)      
Equity in the earnings of subsidiaries (248) R$ (262) R$ (237)  
Equity in the earnings of subsidiaries - change in the equity [2] R$ 0      
Interest percentage 4.60% 30.00% 30.00%  
Aguas de castilho [member]        
Summary of investments [Line Items]        
Equity R$ 8,533 R$ 7,242 R$ 6,084  
Dividends distributed (322)      
Profit for the year 1,600 1,767 1,001  
Profit for the year - change in the equity 13      
Investments 2,560 2,172    
Dividends distributed - change in the equity   (97)    
Other comprehensive income 0      
Reclassification 0      
Equity in the earnings of subsidiaries R$ 481 529 R$ 300  
Equity in the earnings of subsidiaries - change in the equity [2]   R$ 4    
Interest percentage 30.00% 30.00% 30.00%  
Sesamm [member]        
Summary of investments [Line Items]        
Equity R$ 51,514 R$ 45,923 R$ 43,547  
Dividends distributed (1,741)      
Profit for the year 7,332 4,418 5,621  
Profit for the year - change in the equity [2] 0      
Investments 18,546 16,533    
Dividends distributed - change in the equity (627)      
Other comprehensive income 0      
Reclassification 0      
Equity in the earnings of subsidiaries 2,640 R$ 1,591 R$ 2,023  
Equity in the earnings of subsidiaries - change in the equity [2] R$ 0      
Interest percentage 36.00% 36.00% 36.00%  
Aguas de andradina [member]        
Summary of investments [Line Items]        
Equity R$ 29,576 R$ 30,065 R$ 24,832  
Dividends distributed (1,267)      
Other comprehensive income 0      
Profit for the year 3,403 7,271 2,407  
Profit for the year - change in the equity [2] (2,625)      
Investments 8,873 9,020    
Dividends distributed - change in the equity (380)      
Reclassification     0  
Equity in the earnings of subsidiaries 1,020 R$ 2,181 R$ 722  
Equity in the earnings of subsidiaries - change in the equity [2] R$ (787)      
Interest percentage 30.00% 30.00% 30.00%  
Attend ambiental [member]        
Summary of investments [Line Items]        
Equity R$ 11,409 R$ 7,486 R$ 1,426  
Dividends distributed 0      
Profit for the year 3,958 (18,217) (3,743)  
Profit for the year - change in the equity (35)      
Investments 5,134 3,369    
Dividends distributed - change in the equity 0      
Reclassification 0      
Equity in the earnings of subsidiaries 1,781 R$ (8,198) R$ (1,684)  
Equity in the earnings of subsidiaries - change in the equity [2] R$ (16)      
Interest percentage 45.00% 45.00% 45.00%  
Aquapolo ambiental [member]        
Summary of investments [Line Items]        
Equity R$ 41,903 R$ 37,772 R$ 30,170  
Dividends distributed (15,000)      
Other comprehensive income 0      
Profit for the year 19,131 16,283 11,413  
Profit for the year - change in the equity [2] 0      
Investments 20,532 18,508    
Dividends distributed - change in the equity (7,350)      
Reclassification 0      
Equity in the earnings of subsidiaries R$ 9,374 R$ 7,979 R$ 5,592  
Interest percentage 49.00% 49.00% 49.00%  
Paulista geradora de energia [member]        
Summary of investments [Line Items]        
Equity R$ 6,692 R$ 7,144 R$ 7,625  
Dividends distributed 0      
Profit for the year (452) (481) (822)  
Profit for the year - change in the equity [2] 0      
Investments 1,673 1,786    
Reclassification 0      
Equity in the earnings of subsidiaries R$ (113) R$ (119) R$ (206)  
Interest percentage 25.00% 25.00% 25.00%  
Paulista geradora de energia [member]        
Summary of investments [Line Items]        
Interest percentage 25.00% 25.00% 25.00%  
Total        
Summary of investments [Line Items]        
Other comprehensive income R$ 17      
Investments 57,318 R$ 52,822    
Dividends distributed - change in the equity (8,454)      
Reclassification (1,203)      
Equity in the earnings of subsidiaries 14,935 R$ 3,701 R$ 6,510  
Equity in the earnings of subsidiaries - change in the equity [2] R$ (799)      
[1] The amounts presented for 2020 refer to July 31, 2020.
[2] Refer to changes in the equity of investees, as their financial statements for the year ended December 31, 2019 were issued, including some adjustments, after the Companys financial statements.
[3] On August 20, 2020, the investee Saneaqua Mairinque held an Extraordinary Shareholders' Meeting that approved a capital increase in the amount of R$ 21,944, through the issue of 17,178,988 shares. SABESP waived its preemptive right in the participation of such capital increase, and the shares then issued because of the capital increase were entirely subscribed by the shareholder BRK Ambiental, resulting in the dilution of SABESP's interest in the investee. Accordingly, SABESP discontinued the equity accounting method and recorded this financial asset under the fair value on the transaction date, in the amount of R$ 5,734 recorded as "Other investments". The amounts corresponding to the equity result were recorded until July 2020.