Liabilities related to associates and joint ventures (Details Narrative) - USD ($) $ in Millions |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Nov. 30, 2025 |
Oct. 31, 2024 |
Jul. 31, 2024 |
Dec. 31, 2023 |
|
| IfrsStatementLineItems [Line Items] | ||||||
| Additional provisions related to environment | $ 616.0 | $ 956.0 | ||||
| Changes in provision related | 449.0 | |||||
| Cost of related to revision | $ 167.0 | |||||
| Discounted rate | 7.66% | 7.30% | ||||
| Financial debt held by creditors | $ 4,800.0 | |||||
| Long-term unsecured debt | $ 3,900.0 | |||||
| Fund of reparation and compensation programs | $ 1,000.0 | $ 434,000.0 | ||||
| Samarco [Member] | ||||||
| IfrsStatementLineItems [Line Items] | ||||||
| Provisions | 167.0 | $ 449.0 | $ 449.0 | |||
| USD [Member] | ||||||
| IfrsStatementLineItems [Line Items] | ||||||
| Definitive agreement amount | $ 31,700.0 | |||||
| Litigation of securing amount | 876.0 | |||||
| BRL [Member] | ||||||
| IfrsStatementLineItems [Line Items] | ||||||
| Definitive agreement amount | $ 170,000.0 | |||||
| EUR [Member] | ||||||
| IfrsStatementLineItems [Line Items] | ||||||
| Litigation of securing amount | $ 745.4 | |||||