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Participative stockholders' debentures (Details) R$ / shares in Units, R$ in Millions, $ in Millions |  | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Apr. 01, 2021 USD ($) | Apr. 01, 2021 BRL (R$) | Jun. 30, 2021 USD ($) shares | Jun. 30, 2020 USD ($) | Jun. 30, 2021 USD ($) shares | Jun. 30, 2020 USD ($) | Jun. 30, 2021 R$ / shares | Dec. 31, 2020 USD ($) | Dec. 31, 2020 R$ / shares | Jun. 30, 2020 R$ / shares
Participative stockholders' debentures |  |  |  |  |  |  |  |  |  |
Number of debentures issued | shares |  |  | 388,559,056 |  | 388,559,056 |  |  |  |  |
Remuneration paid to the participative stockholders debentures | $ 193 | R$ 1,073 |  |  |  |  |  |  |  |
Average Price Per Debenture | R$ / shares |  |  |  |  |  |  | R$ 60.34 |  | R$ 45.65 | R$ 29.04
Expense Related To Debenture |  |  | $ 278 | $ 231 | $ 1,261 | $ 280 |  |  |  |
Liability Related To Debenture |  |  | $ 4,687 |  | $ 4,687 |  |  | $ 3,413 |  |

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- Definition Represents average price per debenture + References No definition available. + Details
Name: | vale_AveragePricePerDebenture
Namespace Prefix: | vale_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

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- Definition The number of debentures issued by the entity. + References No definition available. + Details
Name: | vale_DebenturesIssued
Namespace Prefix: | vale_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

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- Definition Represents expense related to debenture + References No definition available. + Details
Name: | vale_ExpenseRelatedToDebenture
Namespace Prefix: | vale_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Represents liability related to debenture + References No definition available. + Details
Name: | vale_LiabilityRelatedToDebenture
Namespace Prefix: | vale_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition N/A + References No definition available. + Details
Name: | vale_ParticipativeStockholdersDebenturesAbstract
Namespace Prefix: | vale_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The cash outflow for remuneration paid to the participative stockholders debentures. + References No definition available. + Details
Name: | vale_RemunerationPaidToParticipativeStockHoldersDebentures
Namespace Prefix: | vale_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration