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Other commitments, contingent liabilities and contingent assets (Details) $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($) Wells | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Contractual commitments |  | $ 7,038 |  |
Trade, other payables and provisions |  | 14,310 | $ 10,510 | $ 10,450
Wells committed to drill [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Contractual commitments |  | $ 409 |  |
Number of wells, committed to drill | Wells |  | 36 |  |
Average ownership interest in wells committed to drill |  | 46.00% |  |
Various long term agreements [Member] | Maximum [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Contract Term |  | 2060 |  |
Leases Agreements [Member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Provisions, net of tax |  | $ 2,022 |  |
Agbami redetermination [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Reduction in exposure | $ 822 |  |  |
Other Revenue | $ 57 |  |  |
Guarantees [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | 439 |  |
Claim from Petrofac [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | $ 163 |  |
Percentage Share of Contingent Liability |  | 31.85% |  |
Claim from Petrofac [member] | Petrofac International (UAE) LLC [Member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | $ 533 |  |
Dispute with Brazilian tax authorities [member] | Maximum [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | 135 |  |
ICMS indirect tax [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | $ 460 |  |
Indirect tax rate |  | 18.00% |  |
KKD oil sands partnership [Member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Proportion of ownership interest divested |  | 40.00% |  |
KKD oil sands partnership [Member] | Maximum [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | $ 397 |  |
Norwegian tax authorities [member] | Maximum [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | 182 |  |
Research & Development cost [Member] | Maximum [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | 206 |  |
Internal pricing of certain products of natural gas liquids [Member] | Maximum [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | $ 100 |  |
New Brazilian law [Member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Percent of savings from ICMS tax incentives |  | 10.00% |  |
New Brazilian law [Member] | Maximum [member] |  |  |  |
Disclosure of other provisions and other liabilities [line items] |  |  |  |
Estimated exposure |  | $ 112 |  |

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