Loans and borrowings (Details) - USD ($)
$ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
| IfrsStatementLineItems [Line Items] |
|
|
| Current borrowings, gross |
$ 518
|
$ 1,020
|
| Non-current portion of non-current borrowings, gross |
17,616
|
13,772
|
| Accrued charges |
$ 195
|
184
|
| Quoted In Secondary Market [Member] | Bond [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Borrowings, interest rate |
6.05%
|
|
| Current borrowings, gross |
|
|
| Non-current portion of non-current borrowings, gross |
$ 7,607
|
7,187
|
| Quoted In Secondary Market [Member] | Debentures [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Borrowings, interest rate |
7.22%
|
|
| Current borrowings, gross |
$ 57
|
68
|
| Non-current portion of non-current borrowings, gross |
$ 2,286
|
1,191
|
| Debt Contract Brazil [Member] | TJLP, TR, IPCA, IGP-M and CDI [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Borrowings, interest rate |
9.88%
|
|
| Current borrowings, gross |
$ 44
|
41
|
| Non-current portion of non-current borrowings, gross |
$ 89
|
143
|
| Debt Contract Brazil [Member] | SOFR [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Borrowings, interest rate |
5.72%
|
|
| Non-current portion of non-current borrowings, gross |
$ 150
|
150
|
| Debt Contracts International Markets [Member] | Currencieswith Variable And Fixed Interest [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Borrowings, interest rate |
5.09%
|
|
| Current borrowings, gross |
$ 205
|
716
|
| Non-current portion of non-current borrowings, gross |
$ 6,944
|
5,042
|
| Debt Contracts International Markets [Member] | Fixed interest rate [member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Borrowings, interest rate |
4.79%
|
|
| Current borrowings, gross |
$ 12
|
11
|
| Non-current portion of non-current borrowings, gross |
$ 43
|
50
|
| Debt Contracts International Markets [Member] | Other Currencies With Variable Interest [Member] |
|
|
| IfrsStatementLineItems [Line Items] |
|
|
| Borrowings, interest rate |
2.76%
|
|
| Current borrowings, gross |
$ 5
|
|
| Non-current portion of non-current borrowings, gross |
$ 497
|
$ 9
|