Increase (decrease) through business combinations, other assets.

No definition available.

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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
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- Definition

The amount of additional goodwill recognised, except goodwill included in a disposal group that, on acquisition, meets the criteria to be classified as held for sale in accordance with IFRS 5. [Refer: Goodwill; Disposal groups classified as held for sale [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The fair value, at acquisition date, of cash transferred as consideration in a business combination. [Refer: Business combinations [member]]

+ References

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- Definition

The amount recognised as of the acquisition date for deferred tax liabilities assumed in a business combination. [Refer: Deferred tax liabilities; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The fair value of receivables acquired in a business combination. [Refer: Business combinations [member]]

+ References

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- Definition

The amount recognised as of the acquisition date for identifiable intangible assets acquired in a business combination. [Refer: Intangible assets other than goodwill; Business combinations [member]]

+ References

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- Definition

The fair value, at acquisition date, of liabilities incurred (for example, a liability for contingent consideration) as consideration transferred in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

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- Definition

The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
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- Definition

The proportion of ownership interest in an associate attributable to the entity. [Refer: Associates [member]]

+ References

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- Definition

The proportion of ownership interest in a joint venture attributable to the entity. [Refer: Joint ventures [member]]

+ References

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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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%