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Finance debt (Details Narrative) - USD ($) $ in Millions | 6 Months Ended | 12 Months Ended
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Jun. 30, 2022 | Dec. 31, 2021
DisclosureFinanceDebtLineItems [Line Items] |  |
Description of repaid financial debt | The balance in global notes has maturities between 2024 to 2115 and does not require collateral. Such financing was carried out in dollars, euros and pounds, 87%, 2% and 11%, of the total global notes, respectively. |
Repayment of financial debt | $ 6,393 |
Repurchase and withdraw global bonds | 3,986 |
Level 1 of fair value hierarchy [member] | United States of America, Dollars |  |
DisclosureFinanceDebtLineItems [Line Items] |  |
Fair value measurement, liabilities | 14,402 | $ 20,770
Level 2 of fair value hierarchy [member] | United States of America, Dollars |  |
DisclosureFinanceDebtLineItems [Line Items] |  |
Fair value measurement, liabilities | $ 16,179 | $ 17,121

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- Definition The increase (decrease) in the fair value measurement of liabilities. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2021-01-01 -Paragraph 93 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2021-en-r&anchor=para_93_e&doctype=Standard -URIDate 2021-03-24 + Details
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