Financial assets and liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
IfrsStatementLineItems [Line Items]
Total current financial assets	$ 9,040	$ 8,739
Total non-current financial assets	745	1,391
Total financial assets	9,785	10,130
Current financial liabilities	7,388	7,969
Non-current financial liabilities	19,578	19,149
Financial liabilities	26,966	27,118
Cash And Cash Equivalents Current [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	6,479	3,609
Short Term Investment [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	61	51
Derivative Financial Assets [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	168	271
Total non-current financial assets	109	544
Accounts Receivable Current [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	2,332	4,197
Judicial Deposits [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets		611
Total non-current financial assets	585	798
Restricted Cash [Member]
IfrsStatementLineItems [Line Items]
Total non-current financial assets	4	4
Investments In Equity Securities Noncurrent [Member]
IfrsStatementLineItems [Line Items]
Total non-current financial assets	47	45
Suppliers And Contractors Current [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	4,769	5,272
Derivatives [member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	135	36
Non-current financial liabilities	105	95
Loans And Borrowings Current [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	910	824
Non-current financial liabilities	12,860	11,647
Leases [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	177	197
Non-current financial liabilities	1,183	1,255
Government Grant [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	745	591
Other Financial Liabilities [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	144	290
Advances And Other Financial Obligations [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	508	759
Participative Stockholders Debentures Noncurrent [Member]
IfrsStatementLineItems [Line Items]
Non-current financial liabilities	2,451	2,874
Liabilities Related To Concession Grant [Member]
IfrsStatementLineItems [Line Items]
Non-current financial liabilities	2,979	3,278
Loans And Receivables Or Amortized Cost [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	6,888	4,582
Total non-current financial assets	589	802
Total financial assets	7,477	5,384
Current financial liabilities	7,253	7,933
Non-current financial liabilities	17,022	16,180
Financial liabilities	24,275	24,113
Loans And Receivables Or Amortized Cost [Member] \| Cash And Cash Equivalents Current [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	6,479	3,609
Loans And Receivables Or Amortized Cost [Member] \| Accounts Receivable Current [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	409	362
Loans And Receivables Or Amortized Cost [Member] \| Judicial Deposits [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets		611
Total non-current financial assets	585	798
Loans And Receivables Or Amortized Cost [Member] \| Restricted Cash [Member]
IfrsStatementLineItems [Line Items]
Total non-current financial assets	4	4
Loans And Receivables Or Amortized Cost [Member] \| Suppliers And Contractors Current [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	4,769	5,272
Loans And Receivables Or Amortized Cost [Member] \| Loans And Borrowings Current [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	910	824
Non-current financial liabilities	12,860	11,647
Loans And Receivables Or Amortized Cost [Member] \| Leases [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	177	197
Non-current financial liabilities	1,183	1,255
Loans And Receivables Or Amortized Cost [Member] \| Government Grant [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	745	591
Loans And Receivables Or Amortized Cost [Member] \| Other Financial Liabilities [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	144	290
Loans And Receivables Or Amortized Cost [Member] \| Advances And Other Financial Obligations [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	508	759
Loans And Receivables Or Amortized Cost [Member] \| Liabilities Related To Concession Grant [Member]
IfrsStatementLineItems [Line Items]
Non-current financial liabilities	2,979	3,278
Financial assets at fair value through profit or loss, category [member]
IfrsStatementLineItems [Line Items]
Total current financial assets	2,152	4,157
Total non-current financial assets	109	544
Total financial assets	2,261	4,701
Financial assets at fair value through profit or loss, category [member] \| Short Term Investment [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	61	51
Financial assets at fair value through profit or loss, category [member] \| Derivative Financial Assets [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	168	271
Total non-current financial assets	109	544
Financial assets at fair value through profit or loss, category [member] \| Accounts Receivable Current [Member]
IfrsStatementLineItems [Line Items]
Total current financial assets	1,923	3,835
Financial assets measured at fair value through other comprehensive income, category [member]
IfrsStatementLineItems [Line Items]
Total non-current financial assets	47	45
Total financial assets	47	45
Financial assets measured at fair value through other comprehensive income, category [member] \| Investments In Equity Securities Noncurrent [Member]
IfrsStatementLineItems [Line Items]
Total non-current financial assets	47	45
Financial Liabilities At Fair Value Through Profit Or Loss Category Membe [Member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	135	36
Non-current financial liabilities	2,556	2,969
Financial liabilities	2,691	3,005
Financial Liabilities At Fair Value Through Profit Or Loss Category Membe [Member] \| Derivatives [member]
IfrsStatementLineItems [Line Items]
Current financial liabilities	135	36
Non-current financial liabilities	105	95
Financial Liabilities At Fair Value Through Profit Or Loss Category Membe [Member] \| Participative Stockholders Debentures Noncurrent [Member]
IfrsStatementLineItems [Line Items]
Non-current financial liabilities	$ 2,451	$ 2,874

The amount of current financial assets. [Refer: Financial assets]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2023-01-01
-Paragraph 25
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_25&doctype=Standard
-URIDate 2023-03-23

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- Definition

The amount of current financial liabilities. [Refer: Financial liabilities]

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- Definition

The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Financial instruments, class [member]; Financial assets; Derivatives [member]]

+ References

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- Definition

The amount of non-current financial assets. [Refer: Financial assets]

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- Definition

The amount of non-current financial liabilities. [Refer: Financial liabilities]

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