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

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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]

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The reasonably possible percentage of the increase in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [member]]

+ References

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- 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

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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.

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Employee benefits (Details Narrative) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
IfrsStatementLineItems [Line Items]
Profit sharing program expense	$ 557	$ 499	$ 474
Other expenses	$ 83	80	$ 71
Percentage of reasonably possible increase in actuarial assumption	1.00%
Estimate of contributions	$ 59
Portfolio Of Vale Stock [Member] \| Country of domicile [member]
IfrsStatementLineItems [Line Items]
Plan assets, at fair value	32	47
Brazilian Federal Government Securities [Member] \| Country of domicile [member]
IfrsStatementLineItems [Line Items]
Plan assets, at fair value	4,793	4,214
Canadian Government Securities [Member] \| Foreign countries [member]
IfrsStatementLineItems [Line Items]
Plan assets, at fair value	592	$ 454
Pension Plan [Member]
IfrsStatementLineItems [Line Items]
Pension plan obligations	836
Other expenses	$ 5