Cash and cash equivalents and Marketable securities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
IfrsStatementLineItems [Line Items]
Cash at bank and in hand	$ 103	$ 216
Total short-term financial investments	12,624	7,780
Total cash and cash equivalents	12,727	7,996
BRAZIL
IfrsStatementLineItems [Line Items]
Short-term financial investments	2,021	3,007
Foreign countries [member]
IfrsStatementLineItems [Line Items]
Short-term financial investments	10,603	4,773
Brazilian Interbank Deposit Rateiinvestment Funds And Other Short Term Deposits [Member] \| BRAZIL
IfrsStatementLineItems [Line Items]
Short-term financial investments	1,742
Automatic Investing Accounts And Interest Checking Accounts [Member] \| BRAZIL
IfrsStatementLineItems [Line Items]
Short-term financial investments		2,763
Automatic Investing Accounts And Interest Checking Accounts [Member] \| Foreign countries [member]
IfrsStatementLineItems [Line Items]
Short-term financial investments	2,852	2,365
Other Investment Funds [Member] \| BRAZIL
IfrsStatementLineItems [Line Items]
Short-term financial investments	279	244
Time Deposits [Member] \| Foreign countries [member]
IfrsStatementLineItems [Line Items]
Short-term financial investments	7,737	2,388
Other Financial Investments [Member] \| Foreign countries [member]
IfrsStatementLineItems [Line Items]
Short-term financial investments	$ 14	$ 20

The amount of cash on hand and demand deposits. [Refer: Cash on hand]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2023-01-01
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The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
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-IssueDate 2023-01-01
-Paragraph 45
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_45&doctype=Standard
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-URIDate 2023-03-23

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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The amount of short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value.

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