Accounts receivable (Details) - USD ($) $ in Millions |
Jun. 30, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Receivables from contracts with customers | ||
| Related parties | $ 147 | $ 63 |
| Accounts receivable | 2,379 | 2,410 |
| Expected credit loss | (54) | (52) |
| Accounts receivable, net | 2,325 | 2,358 |
| Iron Solutions [Member] | ||
| Receivables from contracts with customers | ||
| Third parties | 1,389 | 1,540 |
| Energy Transition Metals [Member] | ||
| Receivables from contracts with customers | ||
| Third parties | 830 | 788 |
| All other segments [member] | ||
| Receivables from contracts with customers | ||
| Third parties | $ 13 | $ 19 |