Finance debt (Details 3) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| IfrsStatementLineItems [Line Items] | ||
| Proceeds from finance debt | $ 1,931 | $ 3,072 |
| Repayment of principal | (3,107) | (1,553) |
| Repayment of interest | (1,068) | (857) |
| Net Cash Used In Financing Activities [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Proceeds from finance debt | 1,931 | 3,072 |
| Repayment of principal | (3,135) | (1,547) |
| Repayment of interest | (1,070) | (856) |
| Finance Debt [Member] | Changes In Finance Debt [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Proceeds from finance debt | 1,931 | 3,072 |
| Repayment of principal | (3,107) | (1,553) |
| Repayment of interest | (1,068) | (857) |
| Finance Debt [Member] | Repurchase Of Debt Securities [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Repayment of principal | (11) | |
| Finance Debt [Member] | Deposits Financing [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Repayment of principal | (17) | 6 |
| Repayment of interest | $ (2) | $ 1 |