Trade and other receivables (Details Narrative) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2022	Dec. 31, 2021
DisclosureTradeAndOtherReceivablesLineItems [Line Items]
Description of divestments installment	The change in Receivable from divestments was mainly due to the receipt of US$ 950 related to the final installment for the sale of block BM-S-8, and to the receipt of US$ 1,000, related to the final installment for the sale of the Company’s 90% interest in Nova Transportadora do Sudeste (NTS), partially offset by other receivables from divestments recorded in the period, such as from the Atapu and Sépia Co-participation Agreement (US$ 129) and from Pampo and Enchova fields (US$ 124).
Trade receivables [member]
DisclosureTradeAndOtherReceivablesLineItems [Line Items]
Measured at fair value through profit and loss	$ 775	$ 1,155

The amount of current financial assets measured at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2021-01-01
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Balance Type:	debit
Period Type:	instant