XML 132 R120.htm IDEA: XBRL DOCUMENT
v3.21.2

Brumadinho dam failure - Requests for fines or forfeit of assets (Details) R$ in Billions, $ in Billions | Aug. 26, 2020 USD ($) | Aug. 26, 2020 BRL (R$) | May 31, 2020 USD ($) | May 31, 2020 BRL (R$)
--- | --- | --- | --- | ---
Brumadinho dam failure |  |  |  |
Provision of bank or insurance guarantee | $ 5.1 | R$ 26.7 | $ 1.4 | R$ 7.9

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

X
- 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