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Acquisitions and divestitures (Details Narrative)
R$ in Millions, $ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended
Jun. 28, 2024
USD ($)
Mar. 31, 2024
USD ($)
Mar. 31, 2024
BRL (R$)
Apr. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Apr. 30, 2024
USD ($)
IfrsStatementLineItems [Line Items]                  
Gain $ 1,063         $ 1,059 $ 1,063    
Gain on remeasurement of the interest retained at fair value             657    
Net loss reduction             661    
Provision for impairment       $ 93          
Acquired the minority interest               $ 130  
Realized gain during the acquisitions               $ 3  
PTVI [Member]                  
IfrsStatementLineItems [Line Items]                  
Vale received           $ 155 155    
VBM [Member]                  
IfrsStatementLineItems [Line Items]                  
Aggregated amount                 $ 2,455
Sale of equity interest rate                 90.00%
Gain from the sale                 $ 895
Gain on attributable to noncontrolling interests                 $ 1,514
Alianca Geracao [Member]                  
IfrsStatementLineItems [Line Items]                  
Acquisition interest amount   $ 486 R$ 2,700            
CSP [Member]                  
IfrsStatementLineItems [Line Items]                  
Vale received         $ 1,042        
Cash contributions         $ 1,189        
Gain on financial liability             $ 37