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Impairment reversal (impairment and disposals) of non-current assets (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Midwestern System [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Reversal of impairment loss |  | $ 205 | $ (78)
Manganese [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Reversal of impairment loss |  | (10) | (35)
Vale Nouvelle Caledonie S. A. S [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Reversal of impairment loss |  |  | (98)
Impairment Reversal Of Noncurrent Assets [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Reversal of impairment loss |  | 195 | (211)
Onerous Contracts Midwestern System [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Reversal of impairment loss |  | 916 | (18)
Result Disposals Non Current Assets [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Reversal of impairment loss | (266) | (338) | (197)
Result Disposals Non Current Assets Other Results [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Reversal of impairment loss | (266) | 578 | (215)
Impairment Reversal Disposals Non Current Assets [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Reversal of impairment loss | $ (266) | $ 773 | $ (426)

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