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Liabilities related to associates and joint ventures (Tables) | 12 Months Ended
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Dec. 31, 2022
IfrsStatementLineItems [Line Items] |
Schedule of changes on the provisions related to samarco dam failure |
Schedule of changes on the provisions related to samarco dam failure |  |  |  |  |  |  |  |  |  |  |  |
|  | December 31, 2021 |  | Income statement |  | Monetary and present value adjustments |  | Disbursements |  | Translation adjustments |  | December 31, 2022
Renova Foundation reparation and compensation programs |  | 2,910 |  | 110 |  | 243 |  | (338) |  | 199 |  | 3,124
De-characterization of the Germano dam |  | 202 |  | (21) |  | 1 |  | - |  | 15 |  | 197
Liabilities |  | 3,112 |  | 89 |  | 244 |  | (338) |  | 214 |  | 3,321
Current liabilities |  | 1,785 |  |  |  |  |  |  |  |  |  | 1,911
Non-current liabilities |  | 1,327 |  |  |  |  |  |  |  |  |  | 1,410
Liabilities |  | 3,112 |  |  |  |  |  |  |  |  |  | 3,321
Discount rate in nominal terms |  | 5.48% - 8.79% |  |  |  |  |  |  |  |  |  | 6.20% - 9.51%
Samarco [Member] |
IfrsStatementLineItems [Line Items] |
Summarized financial information of samarco |
Summarized financial information of samarco |  |  |  |
|  | December 31, 2022 |  | December 31, 2021
Current assets |  | 454 |  | 561
Non-current assets |  | 2,748 |  | 2,921
Total assets |  | 3,202 |  | 3,482
Current liabilities |  | 10,808 |  | 10,902
Non-current liabilities |  | 7,401 |  | 7,040
Total liabilities |  | 18,209 |  | 17,942
Negative reserves |  | (15,007) |  | (14,460)
Net income (loss) for the year ended |  | 11 |  | (3,208)

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