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Provision for de-characterization of dam structures and asset retirement obligations (Details Narrative)
$ in Millions, R$ in Billions
 3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2024
BRL (R$)
Jun. 30, 2023
USD ($)
Dec. 31, 2023
USD ($)
IfrsStatementLineItems [Line Items]            
Financial guarantees and insurance     $ 324 R$ 1.8    
Project term     15 years 15 years    
Losses in relation to the operational stoppage $ 36 $ 50 $ 79   $ 124  
Guarantees issued by financial institutions $ 821   $ 821     $ 910
Bottom of range [member]            
IfrsStatementLineItems [Line Items]            
Present value at a rate     5.41% 5.41%    
Top of range [member]            
IfrsStatementLineItems [Line Items]            
Present value at a rate     6.45% 6.45%