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Investments (Details 2) - USD ($) $ / shares in Units, $ in Millions	Dec. 31, 2022	Dec. 31, 2021
IfrsStatementLineItems [Line Items]
Fair value	$ 7,794
Fair value	$ 1,370	$ 2,942
Common Shares [Member] | Braskem S A [Member]
IfrsStatementLineItems [Line Items]
Investments in associates number of shares	212,427	212,427
Quoted stock exchange	$ 4.83	$ 10.17
Fair value	$ 1,025	$ 2,160
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	$ 4.55	$ 10.33
Fair value	$ 345	$ 782

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- Definition

The fair value of investments in associates if there are quoted market prices for the investment. [Refer: Associates [member]; Investments in associates reported in separate financial statements]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2022-03-24
-Paragraph 21
-Subparagraph b
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2022-en-r&anchor=para_21_b_iii&doctype=Standard
-URIDate 2022-03-24

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