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Document and Entity Information
 6 Months Ended
Jun. 30, 2021
Document and Entity Information [Abstract]  
Document Type 6-K/A
Entity Registrant Name Vale S.A.
Entity Address, Address Line One Praia de Botafogo nº 186
Entity Address, Address Line Two 18º andar
Entity Address, Address Line Three Botafogo
Entity Address, City or Town Rio de Janeiro
Entity Address, Country BR
Entity Central Index Key 0000917851
Current Fiscal Year End Date --12-31
Document Fiscal Year Focus 2021
Document Fiscal Period Focus Q2
Amendment Flag false
Document Period End Date Jun. 30, 2021