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Impairment reversal (impairment and disposals) of non-current assets (Tables) | 12 Months Ended
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Dec. 31, 2023
Notes and other explanatory information [abstract] |
Schedule of impairment losses recognized |
Schedule of impairment losses recognized |  |  |  |
| Notes | 2023 | 2022 | 2021
Midwestern System | 16(g) | - | 205 | (78)
Manganese | 16(i) | - | (10) | (35)
Vale Nouvelle-Calédonie S.A.S. ("VNC") | 16(m) | - | - | (98)
Impairment reversal (impairment) of non-current assets |  | - | 195 | (211)
Onerous contracts - Midwestern System | 16(g) | - | 916 | (18)
Result of disposals of non-current assets and others |  | (266) | (338) | (197)
Result of disposals of non-current assets and others |  | (266) | 578 | (215)
Impairment reversal (impairment) and disposals of non-current assets |  | (266) | 773 | (426)
Summary of impairment test for the goodwill |
Summary of impairment test for the goodwill |  |
| 2023 | 2022 |
Carrying amount | 1,473 | 1,367 |
Impairment testing results | The recoverable amount of the operating segments is higher than the carrying amount and, therefore, there is no impairment to be recognized. | The recoverable amount of the operating segments is higher than the carrying amount and, therefore, there is no impairment to be recognized. |
Measurement of recoverable value | FVLCD | FVLCD |
Discount rate | 7.0% | 6.4% |
Period of cash flow projections | 2053 | 2052 |
Range of iron ore forecasted prices | US$/t 75 - 98 | US$/t 75 - 95 |
Sensitivity of key assumptions | A 34% reduction in the long-term prices of all commodities or a 61% reduction in reserves would, alone, result in estimated recoverable amount equal to the carrying value of this CGU. | A 29% reduction in the long-term prices of all commodities or a 51% reduction in reserves would, alone, result in estimated recoverable amount equal to the carrying value of this CGU. |
Goodwill allocated to nickel operations
| 2023 | 2022
Carrying amount | 1,789 | 1,822
Impairment testing results | The recoverable amount of the operating segments is higher than the carrying amount and, therefore, there is no impairment to be recognized. | The recoverable amount of the operating segments is higher than the carrying amount and, therefore, there is no impairment to be recognized.
Measurement of recoverable value | FVLCD | FVLCD
Discount rate | 5.6% - 5.9% | 4.5% - 5.3%
Period of cash flow projections | 2034-2048 | 2032-2048
Range of nickel forecasted prices | US$/t 18,000 – 23,000 | US$/t 21,000 – 24,000
Sensitivity of key assumptions | A 12.5% reduction in the long-term prices of all commodities would, alone, result in estimated recoverable amount equal to the carrying value of this group of CGUs. | A 23.7% reduction In the long-term prices of all commodities would, alone, result in estimated recoverable amount equal to the carrying value of this group of CGUs.
Other intangibles - Research and development project
| 2023 | 2022
Carrying amount | 568 | 528
Impairment testing results | The recoverable amount of the cash generating unit is higher than the carrying amount and, therefore, there is no impairment to be recognised. | The recoverable amount of the cash generating unit is higher than the carrying amount and, therefore, there is no impairment to be recognised.
Measurement of recoverable value | FVLCD | FVLCD
Discount rate | 7% | 6.4%
Beginning of operation and useful life | 16 years of useful life considering the beginning of operation in 2025 | 16 years of useful life considering the beginning of operation in 2025
Range of iron ore forecasted prices | US$/t 80 - 98 | US$/t 85 - 95
Sensitivity of key assumptions | A 7.5% reduction in the prices of all commodities or an 67% reduction in in processing and beneficiating iron ore volumes would, alone, result in estimated recoverable amount equal to the carrying value of this asset. | A 12.5% reduction in the prices of all commodities or an A 77% reduction in in processing and beneficiating iron ore volumes would, alone, result in estimated recoverable amount equal to the carrying value of this asset.

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- Definition The disclosure of impairment loss and the reversal of impairment loss. [Refer: Impairment loss; Reversal of impairment loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 126 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_126&doctype=Standard -URIDate 2023-03-23 + Details
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