Employee benefits (Details 2) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
IfrsStatementLineItems [Line Items]
Total	$ (4,503)	$ (3,698)	$ (3,274)
Salaries, accrued vacations and related charges [member]
IfrsStatementLineItems [Line Items]
Total	(3,478)	(3,006)	(2,665)
Variable compensation programs [member]
IfrsStatementLineItems [Line Items]
Total	(416)	(547)	(469)
Profit sharing [member]
IfrsStatementLineItems [Line Items]
Total	(595)	(131)	(125)
Management fees and charges [member]
IfrsStatementLineItems [Line Items]
Total	$ (14)	$ (14)	$ (15)

The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
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-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
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-URIDate 2023-03-23

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_104&doctype=Standard
-URIDate 2023-03-23

Name:	ifrs-full_EmployeeBenefitsExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration