XML 183 R156.htm IDEA: XBRL DOCUMENT
v3.21.1

Brumadinho dam failure - Contingencies and other legal matters (Details) ha in Thousands, R$ in Billions, $ in Billions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jul. 31, 2020 ha item | Dec. 31, 2020 item | Aug. 26, 2020 BRL (R$) | Aug. 26, 2020 USD ($)
Contingencies |  |  |  |
Total number of requests |  | 207 |  |
Number of requests extinguished |  | 204 |  |
Provision of bank or insurance guarantee |  |  | R$ 26.7 | $ 5.1
Environmental projects |  |  |  |
Contingencies |  |  |  |
Number of parks in which environmental projects will be done | 7 |  |  |
Area of property in which environmental projects will be done | ha | 794 |  |  |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfContingentLiabilitiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the area of property in which environmental projects will be done. + References No definition available. + Details
Name: | vale_AreaOfPropertyInWhichEnvironmentalProjectsWillBeDone
Namespace Prefix: | vale_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of parks in which environmental projects will be done. + References No definition available. + Details
Name: | vale_NumberOfParksInWhichEnvironmentalProjectsWillBeDone
Namespace Prefix: | vale_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of requests extinguished. + References No definition available. + Details
Name: | vale_NumberOfRequestsExtinguished
Namespace Prefix: | vale_
Data Type: | xbrli:integerItemType
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

X
- Definition Represents the total number of requests. + References No definition available. + Details
Name: | vale_TotalNumberOfRequests
Namespace Prefix: | vale_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfContingentLiabilitiesAxis=vale_EnvironmentalProjectsInStateOfMinasGeraisMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |