| Line Item | Jun 30, 2026 | Jun 30, 2025 |
|---|---|---|
| Profit or loss [abstract] | ||
| Revenue | ||
| Cost of goods sold and services rendered | ||
| Gross profit | ||
| Operating expenses | ||
| Selling and administrative | ||
| Research and development | ||
| Pre-operating and operational stoppage | ||
| Operating Income | ||
| Impairment and other results related to non-current assets, net | ||
| Interest Income | ||
| Financial expenses | ||
| Other financial items, net | ||
| Equity results and other results in associates and joint ventures | ||
| Income before income taxes | ||
| Income taxes | ||
| Net income | ||
| Net income attributable to noncontrolling interests | ||
| Net income attributable to Vale S.A.'s shareholders |