XML 92 R68.htm IDEA: XBRL DOCUMENT
v3.22.4

FAIR VALUE MEASUREMENTS (Details) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) $ / MillionCubicFeet $ / Barrel | Mar. 31, 2020 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2022
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges, net of tax |  |  |  | $ 276 |  |
Impairment and related charges |  | $ 8,600 |  |  |  |
WES |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges |  |  | $ 1,200 |  |  |
Impairment of equity method investment | $ 2,700 |  |  |  |  |
Low end of range |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Operating and capital cost estimates, percentage |  | 1.00% |  |  |  |
Operating and capital cost estimates (in dollars per barrel) | $ / Barrel |  | 50 |  |  |  |
High end of range |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Operating and capital cost estimates, percentage |  | 2.00% |  |  |  |
Operating and capital cost estimates (in dollars per barrel) | $ / Barrel |  | 60 |  |  |  |
Oil |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Unweighted arithmetic average price, period |  | 15 years |  |  |  |
Oil | WTI |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Unweighted arithmetic average price (in dollars per barrel) | $ / Barrel |  | 59.17 |  |  |  |
Oil | Brent Indexed Assets |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Unweighted arithmetic average price (in dollars per barrel) | $ / Barrel |  | 62.42 |  |  |  |
Oil | Low end of range |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Sales price (dollars per barrel) | $ / Barrel |  | 40 |  |  |  |
Oil | High end of range |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Sales price (dollars per barrel) | $ / Barrel |  | 70 |  |  |  |
Natural Gas |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Unweighted arithmetic average price (in dollars per barrel) | $ / MillionCubicFeet |  | 3.13 |  |  |  |
Unweighted arithmetic average price, period |  | 15 years |  |  |  |
Natural Gas | Low end of range |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Sales price (dollars per barrel) | $ / MillionCubicFeet |  | 2.00 |  |  |  |
Natural Gas | High end of range |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Sales price (dollars per barrel) | $ / MillionCubicFeet |  | 3.60 |  |  |  |
Gulf of Mexico |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges |  | $ 1,200 | 241 |  |  |
Algeria Oil and Gas Proved Properties |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges |  | 900 |  |  |  |
Oman, Bolivia and the Gulf of Mexico |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges |  |  | 293 |  |  |
Level 2 | Domestic Onshore Unproved Acreage |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges |  | 4,300 |  |  |  |
Level 3 | Measurement Input, Weighted Average Cost of Capital |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Discount rate |  |  |  |  |  | 10.00%
Non recurring |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Goodwill impairment |  |  |  |  | $ 1,153 |
Oil and gas properties - proved |  |  |  |  | 2,436 |
Oil and gas properties - unproved |  |  |  |  | 4,591 |
Oil and gas properties - discontinued operations, net |  |  |  |  | 2,191 |
WES equity investment |  |  |  |  | 2,673 |
Ghana Assets |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges |  |  |  |  | $ 2,200 |
Ghana Assets | Discontinued Operations, Held-for-sale |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges, net of tax |  | 1,400 |  |  |  |
Impairment and related charges |  | 2,200 |  |  |  |
Oil and gas |  |  |  |  |  |
Fair value of assets and liabilities |  |  |  |  |  |
Impairment and related charges |  | $ 6,400 | $ 581 |  |  |

X
- Definition Asset Impairment Charges, Net of Tax + References No definition available. + Details
Name: | oxy_AssetImpairmentChargesNetOfTax
Namespace Prefix: | oxy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Equity Method Investment, Charges at Fair Value + References No definition available. + Details
Name: | oxy_EquityMethodInvestmentChargesAtFairValue
Namespace Prefix: | oxy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Goodwill Impairment Charges, Fair Value + References No definition available. + Details
Name: | oxy_GoodwillImpairmentChargesFairValue
Namespace Prefix: | oxy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Oil and Gas, Operating and Capital Cost Estimates + References No definition available. + Details
Name: | oxy_OilAndGasOperatingAndCapitalCostEstimates
Namespace Prefix: | oxy_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | duration

X
- Definition Oil and Gas, Operating and Capital Cost Estimates, Percentage + References No definition available. + Details
Name: | oxy_OilAndGasOperatingAndCapitalCostEstimatesPercentage
Namespace Prefix: | oxy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Oil And Gas Properties, Discontinued Operations, Net Charges at Fair Value + References No definition available. + Details
Name: | oxy_OilAndGasPropertiesDiscontinuedOperationsNetChargesAtFairValue
Namespace Prefix: | oxy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Oil And Gas Properties, Measurement Input + References No definition available. + Details
Name: | oxy_OilAndGasPropertiesMeasurementInput
Namespace Prefix: | oxy_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Oil And Gas Properties, Proved, Charges at Fair Value + References No definition available. + Details
Name: | oxy_OilAndGasPropertiesProvedChargesAtFairValue
Namespace Prefix: | oxy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Oil And Gas Properties, Unproved, Charges at Fair Value + References No definition available. + Details
Name: | oxy_OilAndGasPropertiesUnprovedChargesAtFairValue
Namespace Prefix: | oxy_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Oil and Gas, Unweighted Arithmetic Average Price, Period + References No definition available. + Details
Name: | oxy_OilAndGasUnweightedArithmeticAveragePricePeriod
Namespace Prefix: | oxy_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Oil and Gas, Unweighted Arithmetic Average Sale Price + References No definition available. + Details
Name: | oxy_OilAndGasUnweightedArithmeticAverageSalePrice
Namespace Prefix: | oxy_
Data Type: | srt-types:perUnitItemType
Balance Type: | na
Period Type: | duration

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 Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2420-110228 + Details
Name: | us-gaap_AssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI https://asc.fasb.org/extlink&oid=126903467&loc=d3e32787-111569 + Details
Name: | us-gaap_EquityMethodInvestmentOtherThanTemporaryImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=oxy_WesternMidstreamPartnersLPMember
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_EnergyAxis=srt_CrudeOilMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | oxy_IndexedAssetNameAxis=oxy_WestTexasIntermediateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | oxy_IndexedAssetNameAxis=oxy_BrentIndexedAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_EnergyAxis=srt_NaturalGasReservesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=oxy_DomesticOnshoreUnprovedAcreageMember
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_MeasurementInputTypeAxis=oxy_MeasurementInputWeightedAverageCostOfCapitalMember
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: | us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=oxy_GhanaAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DiscontinuedOperationsHeldforsaleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=oxy_OilAndGasSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |