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Acquisitions and disposals - acquisitions (Details) € in Millions, $ in Millions |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
May 05, 2021 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) | May 05, 2021 EUR (€) | May 05, 2021 USD ($)
Wento [Member] | REN [member] |  |  |  |  |  |
Acquisitions [line items] |  |  |  |  |  |
Percentage of share acquired |  |  |  |  | 100.00% | 100.00%
Cash consideration |  |  |  |  | € 98 | $ 117
Acquired a receivable |  |  |  |  |  | 3
Increase intangible assets as of acquisition date |  |  |  |  |  | 46
Goodwill | $ 59 |  |  |  |  |
Increase in deferred tax liability |  |  |  |  |  | 9
Increase in other assets |  |  |  |  |  | $ 21
KrasGeoNaC [member] | E&P International [member] |  |  |  |  |  |
Acquisitions [line items] |  |  |  |  |  |
Percentage of share acquired |  |  |  | 49.00% |  |
Total purchase price |  |  |  | $ 529 |  |
Cash consideration |  |  |  | 384 |  |
Contingent payments |  |  |  | $ 145 |  |
SPM Argentina S.A. [member] | Bandurria Sur [Member] |  |  |  |  |  |
Acquisitions [line items] |  |  |  |  |  |
Ownership interest in joint venture |  |  | 49.00% |  |  |
SPM Argentina S.A. [member] | Shell [Member] |  |  |  |  |  |
Acquisitions [line items] |  |  |  |  |  |
Percentage of share acquired |  |  | 50.00% |  |  |
SPM Argentina S.A. [member] | E&P International [member] |  |  |  |  |  |
Acquisitions [line items] |  |  |  |  |  |
Percentage of share acquired |  |  | 50.00% |  |  |
Total purchase price |  |  | $ 187 |  |  |
Bandurria Sur Ownership [member] | E&P International [member] |  |  |  |  |  |
Acquisitions [line items] |  |  |  |  |  |
Percentage of share acquired |  | 5.50% |  |  |  |
Total purchase price |  | $ 44 |  |  |  |
Ownership interest in associate |  | 30.00% |  |  |  |

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- Definition The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B64 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_f&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
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