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GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill Impairment (Details) - $ / bbl | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
After-tax discount rate applied to cash flow projections | 7.50% | 7.50%
Minimum |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Cash flow forecast period | 50 years to |
Maximum |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Cash flow forecast period | 55 years |
Within one year |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Projected West Texas Intermediate prices | 71.00 |
2018 |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Projected West Texas Intermediate prices | 66.81 |
2019 |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Projected West Texas Intermediate prices | 63.46 |
2020 |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Projected West Texas Intermediate prices | 64.73 |
Over 5 years |  |
GOODWILL AND OTHER INTANGIBLE ASSETS |  |
Impairment testing assumption, price per barrel escalation percentage |  | 2.00%

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- Definition The discount rate applied to cash flow projections for a cash-generating unit (group of units). [Refer: Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph d -Clause v -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_d_v&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph e -Clause v -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_e_v&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph d -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_d_iv&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph e -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_e_iv&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The explanation of the period over which management has projected cash flows based on financial budgets/forecasts approved by management including, when a period greater than five years is used for a cash-generating unit (group of units), an explanation of why that longer period is justified. [Refer: Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_d_iii&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2021-01-01 -Paragraph 134 -Subparagraph e -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2021-en-r&anchor=para_134_e_iii&doctype=Standard -URIDate 2021-03-24 + Details
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