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Employee benefits (Details Narrative) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
IfrsStatementLineItems [Line Items]
Profit sharing program expense	$ 611	$ 557	$ 499
Other expenses	118	83	$ 80
Estimate of contributions	53
Portfolio Of Vale Stock [Member] | Country of domicile [member]
IfrsStatementLineItems [Line Items]
Plan assets, at fair value	23	47
Brazilian Federal Government Securities [Member] | Country of domicile [member]
IfrsStatementLineItems [Line Items]
Plan assets, at fair value	3,945	4,793
Canadian Government Securities [Member] | Foreign countries [member]
IfrsStatementLineItems [Line Items]
Plan assets, at fair value	$ 507	592
Pension Plan [Member]
IfrsStatementLineItems [Line Items]
Pension plan obligations		836
Other expenses		$ 5

X

- Definition

The estimate of the expected contributions to be made to a defined benefit plan for the next annual reporting period. [Refer: Defined benefit plans [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of expenses that the entity does not separately disclose in the same statement or note when the entity uses the 'nature of expense' form for its analysis of expenses. [Refer: Expenses, by nature]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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X

- Definition

The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
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X

- Definition

The amount of post-employment benefit expense relating to defined contribution plans. Defined contribution plans are post-employment benefit plans under which an entity pays fixed contributions into a separate entity (a fund) and will have no legal or constructive obligation to pay further contributions if the fund does not hold sufficient assets to pay all employee benefits relating to employee service in the current and prior periods.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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