XML 118 R93.htm IDEA: XBRL DOCUMENT
v3.22.4

Fair Value Measurement - Range and Arithmetic Average of Significant Unobservable Inputs (Details) - Lower 48 Gulf Coast and Rockies noncore field - Level 3 Inputs - Fair Value, Nonrecurring - Lower 48 $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2021 $ / MMBTU | Dec. 31, 2021 USD ($) MMcf
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Fair Value | $ |  | $ 472
Measurement Input, Commodity Future Price | Valuation Technique, Discounted Cash Flow |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Future prices annual increase (decrease), percentage |  | 2.00%
Measurement Input, Natural Gas | Valuation Technique, Discounted Cash Flow | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commodity production (MBOED) | MMcf |  | 0.2
Oil and gas, price outlook | $ / MMBTU | 41.45 |
Measurement Input, Natural Gas | Valuation Technique, Discounted Cash Flow | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commodity production (MBOED) | MMcf |  | 17
Oil and gas, price outlook | $ / MMBTU | 93.68 |
Measurement Input, Natural Gas | Valuation Technique, Discounted Cash Flow | Arithmetic Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Commodity production (MBOED) | MMcf |  | 5.4
Oil and gas, price outlook | $ / MMBTU | 64.39 |
Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | Minimum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Discount rate | 7.30% |
Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | Maximum |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Discount rate | 9.70% |
Measurement Input, Discount Rate | Valuation Technique, Discounted Cash Flow | Arithmetic Average |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Discount rate | 8.70% |

X
- Definition The future price annual increase (decrease) after year 2034, determined the Henry Hub natural gas price outlook based on external pricing service companies' outlooks for years 2022-2034. + References No definition available. + Details
Name: | cop_FuturePricesAnnualIncreaseDecreasePercentage
Namespace Prefix: | cop_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | cop_ProvedDevelopedReservesVolumePerDay
Namespace Prefix: | cop_
Data Type: | dtr-types:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Sales price per unit of oil and gas produced. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1204 -Paragraph (b) -Subparagraph (1) + Details
Name: | srt_AverageSalesPrices
Namespace Prefix: | srt_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Discount rate used to estimate the fair value of servicing assets and servicing liabilities. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122596-111746 + Details
Name: | us-gaap_ServicingAssetsAndServicingLiabilitiesAtFairValueAssumptionsUsedToEstimateFairValueDiscountRate
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=cop_Lower48GulfCoastAndRockiesNoncoreFieldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsNonrecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=cop_LowerFortyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputCommodityFuturePriceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ValuationTechniqueAxis=us-gaap_ValuationTechniqueDiscountedCashFlowMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=cop_MeasurementInputNaturalGasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_ArithmeticAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |