Trade and other receivables (Details 1) - Third Parties [Member] - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Trade and other receivables | $ 6,541 | $ 7,191 |
| Expected credit losses | (1,848) | (1,780) |
| Current [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Trade and other receivables | 4,462 | 5,265 |
| Expected credit losses | (25) | (88) |
| Not later than three months [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Trade and other receivables | 42 | 66 |
| Expected credit losses | (23) | (32) |
| Later than three months and not later than six months [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Trade and other receivables | 44 | 46 |
| Expected credit losses | (22) | (25) |
| Later than six months and not later than one year [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Trade and other receivables | 104 | 129 |
| Expected credit losses | (98) | (106) |
| Later than one year [member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Trade and other receivables | 1,889 | 1,685 |
| Expected credit losses | $ (1,680) | $ (1,529) |