Financial and capital risk management (Details 8) - Embedded Call Options Sold [Member] $ in Millions |
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
USD ($)
|
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Nominal amount of hedging instrument | 746,667 | 746,667 |
| Fair value of liabilities | $ (1) | |
| Not later than one year [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Value at risk | ||
| Later than one year [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Value at risk | ||
| Later than one year and not later than five years [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Value at risk |