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Brumadinho dam failure - Requests for fines or forfeit of assets (Details) - Aug. 26, 2020 R$ in Billions, $ in Billions | BRL (R$) | USD ($)
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Brumadinho dam failure |  |
Provision of bank or insurance guarantee | R$ 26.7 | $ 5.1

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

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- Definition The amount of provision of bank guarantee or insurance guarantee to guarantee the application of an eventual fine and potential loss of assets, rights and values. + References No definition available. + Details
Name: | vale_ProvisionOfBankOrInsuranceGuaranteeToGuaranteeApplicationOfEventualLiability
Namespace Prefix: | vale_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant