Exploration and evaluation of oil and gas reserves (Details Narrative) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Collateral for crude oil exploration concession agreements, amount | $ 2,189 | $ 1,410 |
| Marlim [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Assets pledged as collateral | 1,454 | 1,358 |
| Buzios [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Assets pledged as collateral | $ 735 | $ 52 |