Financial and capital risk management (Details 4) - Foreign Exchange And Interest Rate Derivatives [Member] - USD ($) $ in Millions |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| IfrsStatementLineItems [Line Items] | |||
| Foreign exchange notional amount | $ 12,578 | $ 9,201 | |
| Foreign exchange financial settlement inflows | 737 | $ 455 | |
| Later Than One Year And There After [Member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Foreign exchange financial settlement inflows | 271 | ||
| Later Than Two Year And There After [Member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Foreign exchange financial settlement inflows | 182 | ||
| Later Than Three Year And There After [Member] | |||
| IfrsStatementLineItems [Line Items] | |||
| Foreign exchange financial settlement inflows | $ 284 | ||