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Brumadinho dam failure - Assets write-off (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($)
Corrego do Feijao mine and upstream dams
Brumadinho dam failure
Impairment loss	$ 235

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- Definition

The amount recognised as a reduction of the carrying amount of an asset or cash-generating unit to its recoverable amount. [Refer: Carrying amount [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2020-01-01
-Paragraph 130
-Subparagraph b
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2020-01-01
-Paragraph 130
-Subparagraph d
-Clause ii
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2020-en-r&anchor=para_130_d_ii&doctype=Standard
-URIDate 2020-01-01

+ Details

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- References

No definition available.

+ Details

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Namespace Prefix:	vale_
Data Type:	xbrli:stringItemType
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Period Type:	duration

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: