XML 107 R77.htm IDEA: XBRL DOCUMENT
v3.20.4

DERIVATIVES - NARRATIVE (Details) - USD ($) $ / shares in Units, shares in Millions | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Jun. 26, 2020 | May 29, 2020 | Dec. 31, 2019 | Oct. 31, 2019 | Aug. 08, 2019
Derivative [Line Items] |  |  |  |  |  |  |
Net cash receipts related to settlements |  | $ 960,000,000 |  |  |  |  |
Debt instrument issued |  | 35,235,000,000 |  |  | $ 37,401,000,000 |  |
Forecast |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Net cash receipts related to settlements | $ 52,000,000 |  |  |  |  |  |
Not designated as hedging instruments |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Aggregate fair value of derivative instruments with credit-risk-related contingent features for which a net liability position existed (net of collateral) |  | 104,000,000 |  |  | 787,000,000 |  |
Amount of collateral posted related to derivative instruments with credit-risk-related contingent features |  | 374,000,000 |  |  | $ 169,000,000 |  |
Senior notes |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Debt instrument issued |  | 7,000,000,000.0 |  |  |  |  |
Common Stock |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Exercise price of warrant (in dollars per share) |  |  | $ 59.624 |  |  |  |
Warrants issued (in shares) |  |  | 3.9 |  |  |  |
Additional Paid-in Capital |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Warrants issued (in shares) |  |  |  | 103.0 |  |  |
Anadarko Petroleum Corporation |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Debt instrument issued |  |  |  |  |  |  | $ 21,800,000,000
Anadarko Petroleum Corporation | Senior notes |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Debt instrument issued |  |  |  |  |  |  | $ 13,000,000,000.0
Anadarko Petroleum Corporation | Common Stock |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Exercise price of warrant (in dollars per share) |  |  |  |  |  |  | $ 62.50
Warrants issued (in shares) |  |  |  |  |  |  | 80.0
Interest Rate Swap, 6.662% |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Notional Principal Amount |  | 350,000,000 |  |  |  | $ 125,000,000 |
Interest Rate Swaps |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |
Net cash payments |  | 93,000,000 |  |  |  |  |
Collateral paid with respect to interest rate swap agreements |  | $ 270,000,000 |  |  |  |  |

X
- Definition Class of Warrant or Right, Issued + References No definition available. + Details
Name: | oxy_ClassOfWarrantOrRightIssued
Namespace Prefix: | oxy_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Derivative Instrument, Collateral Returned (Paid) + References No definition available. + Details
Name: | oxy_DerivativeInstrumentCollateralReturnedPaid
Namespace Prefix: | oxy_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624258-113959 + Details
Name: | us-gaap_CollateralAlreadyPostedAggregateFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624258-113959 + Details
Name: | us-gaap_DerivativeNetLiabilityPositionAggregateFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The net cash outflow or inflow from derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24072-122690 + Details
Name: | us-gaap_PaymentsForProceedsFromDerivativeInstrumentFinancingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow provided by derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromDerivativeInstrumentInvestingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_StatementScenarioAxis=srt_ScenarioForecastMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AdditionalPaidInCapitalMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=oxy_AnadarkoPetroleumCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=oxy_InterestRateSwapMandatoryTerminationDateSeptember20216662Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |