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Investments (Details 2) - USD ($) $ / shares in Units, $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
IfrsStatementLineItems [Line Items] |  |
Fair value | $ 557 | $ 1,294
Common Shares [Member] | Braskem S A [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Investments in associates number of shares | 212,427 | 212,427
Quoted stock exchange | $ 1.95 | $ 4.48
Fair value | $ 415 | $ 952
Class A Preference Shares [Member] | Braskem S A [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Investments in associates number of shares | 75,762 | 75,762
Quoted stock exchange | $ 1.87 | $ 4.52
Fair value | $ 142 | $ 342

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