{
 "instance": {
  "a2019ye10-kdocument.htm": {
   "axisCustom": 4,
   "axisStandard": 43,
   "contextCount": 479,
   "dts": {
    "calculationLink": {
     "local": [
      "crc-20191231_cal.xml"
     ]
    },
    "definitionLink": {
     "local": [
      "crc-20191231_def.xml"
     ],
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-eedm-def-2019-01-31.xml",
      "http://xbrl.fasb.org/srt/2019/elts/srt-eedm1-def-2019-01-31.xml"
     ]
    },
    "inline": {
     "local": [
      "a2019ye10-kdocument.htm"
     ]
    },
    "labelLink": {
     "local": [
      "crc-20191231_lab.xml"
     ],
     "remote": [
      "https://xbrl.sec.gov/dei/2019/dei-doc-2019-01-31.xml",
      "http://xbrl.fasb.org/srt/2019/elts/srt-doc-2019-01-31.xml",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-doc-2019-01-31.xml"
     ]
    },
    "presentationLink": {
     "local": [
      "crc-20191231_pre.xml"
     ]
    },
    "referenceLink": {
     "remote": [
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-ref-2019-01-31.xml",
      "http://xbrl.fasb.org/srt/2019/elts/srt-ref-2019-01-31.xml",
      "https://xbrl.sec.gov/dei/2019/dei-ref-2019-01-31.xml"
     ]
    },
    "schema": {
     "local": [
      "crc-20191231.xsd"
     ],
     "remote": [
      "http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd",
      "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xl-2003-12-31.xsd",
      "http://www.xbrl.org/2003/xlink-2003-12-31.xsd",
      "http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd",
      "http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd",
      "http://www.xbrl.org/2006/ref-2006-02-27.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd",
      "http://www.xbrl.org/2005/xbrldt-2005.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd",
      "http://xbrl.fasb.org/srt/2019/elts/srt-roles-2019-01-31.xsd",
      "https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.xsd",
      "http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd",
      "http://www.xbrl.org/lrr/role/net-2009-12-16.xsd",
      "https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd",
      "https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd",
      "https://xbrl.sec.gov/exch/2019/exch-2019-01-31.xsd",
      "http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd",
      "http://xbrl.sec.gov/naics/2017/naics-2017-01-31.xsd",
      "http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd",
      "https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd",
      "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd",
      "http://xbrl.fasb.org/us-gaap/2019/elts/us-parts-codification-2019-01-31.xsd",
      "http://www.xbrl.org/lrr/role/deprecated-2009-12-16.xsd"
     ]
    }
   },
   "elementCount": 960,
   "entityCount": 1,
   "hidden": {
    "http://fasb.org/us-gaap/2019-01-31": 57,
    "http://www.oxy.com/20191231": 20,
    "http://xbrl.sec.gov/dei/2019-01-31": 5,
    "total": 82
   },
   "keyCustom": 117,
   "keyStandard": 506,
   "memberCustom": 89,
   "memberStandard": 68,
   "nsprefix": "crc",
   "nsuri": "http://www.oxy.com/20191231",
   "report": {
    "R1": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "document",
     "isDefault": "true",
     "longName": "0001000 - Document - Cover Page",
     "role": "http://www.oxy.com/role/CoverPage",
     "shortName": "Cover Page",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "dei:DocumentType",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R10": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2101100 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOther",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R100": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock",
       "us-gaap:ScheduleOfAmountsRecognizedInOtherComprehensiveIncomeLossTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanServiceCost",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414406 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS - Cost (Details)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS - Cost (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfNetBenefitCostsTableTextBlock",
       "us-gaap:ScheduleOfAmountsRecognizedInOtherComprehensiveIncomeLossTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanExpectedReturnOnPlanAssets",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R101": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfAssumptionsUsedTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "4",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414407 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS - Assumptions (Details)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS - Assumptions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfAssumptionsUsedTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "4",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R102": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfAllocationOfPlanAssetsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414408 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS - Plan Assets (Details)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS - Plan Assets (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfAllocationOfPlanAssetsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CashAndCashEquivalentsFairValueDisclosure",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R103": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414409 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS - Benefit Payments (Details)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS - Benefit Payments (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R104": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "crc:TermOfPaymentAfterInvoicingForContractsWithCustomers",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415402 - Disclosure - REVENUE RECOGNITION - Commodity Sales Contracts and Marketing (Details)",
     "role": "http://www.oxy.com/role/RevenueRecognitionCommoditySalesContractsAndMarketingDetails",
     "shortName": "REVENUE RECOGNITION - Commodity Sales Contracts and Marketing (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "crc:TermOfPaymentAfterInvoicingForContractsWithCustomers",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R105": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2415403 - Disclosure - REVENUE RECOGNITION - Disaggregation of revenue (Details)",
     "role": "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails",
     "shortName": "REVENUE RECOGNITION - Disaggregation of revenue (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_srt_ProductOrServiceAxis_us-gaap_OilAndCondensateMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R106": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "srt:ScheduleOfCondensedBalanceSheetTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetsCurrent",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2416402 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Balance Sheet (Details)",
     "role": "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
     "shortName": "CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Balance Sheet (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "srt:ScheduleOfCondensedBalanceSheetTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:InvestmentsInAndAdvancesToAffiliatesAmountOfEquity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R107": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:Revenues",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2416403 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Income Statement (Details)",
     "role": "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails",
     "shortName": "CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Income Statement (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "srt:ScheduleOfCondensedIncomeStatementTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:CostOfRevenue",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R108": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:NetCashProvidedByUsedInOperatingActivities",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2416404 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Cash Flow Statement (Details)",
     "role": "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
     "shortName": "CONDENSED CONSOLIDATING FINANCIAL INFORMATION - Condensed Cash Flow Statement (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "srt:ScheduleOfCondensedCashFlowStatementTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_srt_ConsolidationItemsAxis_us-gaap_IntersegmentEliminationMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:NetCashProvidedByUsedInOperatingActivities",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R11": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2102100 - Disclosure - ACCOUNTING AND DISCLOSURE CHANGES",
     "role": "http://www.oxy.com/role/AccountingAndDisclosureChanges",
     "shortName": "ACCOUNTING AND DISCLOSURE CHANGES",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R12": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2103100 - Disclosure - PROPERTY, PLANT AND EQUIPMENT",
     "role": "http://www.oxy.com/role/PropertyPlantAndEquipment",
     "shortName": "PROPERTY, PLANT AND EQUIPMENT",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R13": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "crc:AcquisitionsAndDivestituresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2104100 - Disclosure - ACQUISITIONS AND DIVESTITURES",
     "role": "http://www.oxy.com/role/AcquisitionsAndDivestitures",
     "shortName": "ACQUISITIONS AND DIVESTITURES",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "crc:AcquisitionsAndDivestituresTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R14": {
     "firstAnchor": {
      "ancestors": [
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EquityMethodInvestmentsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2105100 - Disclosure - JOINT VENTURES",
     "role": "http://www.oxy.com/role/JointVentures",
     "shortName": "JOINT VENTURES",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EquityMethodInvestmentsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R15": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LongTermDebtTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2106100 - Disclosure - DEBT",
     "role": "http://www.oxy.com/role/Debt",
     "shortName": "DEBT",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LongTermDebtTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R16": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeFinanceLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2107100 - Disclosure - LEASES",
     "role": "http://www.oxy.com/role/Leases",
     "shortName": "LEASES",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LesseeFinanceLeasesTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R17": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2108100 - Disclosure - LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES",
     "role": "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingencies",
     "shortName": "LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CommitmentsAndContingenciesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R18": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2109100 - Disclosure - DERIVATIVES",
     "role": "http://www.oxy.com/role/Derivatives",
     "shortName": "DERIVATIVES",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R19": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IncomeTaxDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2110100 - Disclosure - INCOME TAXES",
     "role": "http://www.oxy.com/role/IncomeTaxes",
     "shortName": "INCOME TAXES",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:IncomeTaxDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R2": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:Cash",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1001000 - Statement - Consolidated Balance Sheets",
     "role": "http://www.oxy.com/role/ConsolidatedBalanceSheets",
     "shortName": "Consolidated Balance Sheets",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:Cash",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R20": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2111100 - Disclosure - STOCK-BASED COMPENSATION",
     "role": "http://www.oxy.com/role/StockBasedCompensation",
     "shortName": "STOCK-BASED COMPENSATION",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R21": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2112100 - Disclosure - EQUITY",
     "role": "http://www.oxy.com/role/Equity",
     "shortName": "EQUITY",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:StockholdersEquityNoteDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R22": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2113100 - Disclosure - EARNINGS PER SHARE",
     "role": "http://www.oxy.com/role/EarningsPerShare",
     "shortName": "EARNINGS PER SHARE",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:EarningsPerShareTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R23": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2114100 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlans",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R24": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2115100 - Disclosure - REVENUE RECOGNITION",
     "role": "http://www.oxy.com/role/RevenueRecognition",
     "shortName": "REVENUE RECOGNITION",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:RevenueFromContractWithCustomerTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R25": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2116100 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION",
     "role": "http://www.oxy.com/role/CondensedConsolidatingFinancialInformation",
     "shortName": "CONDENSED CONSOLIDATING FINANCIAL INFORMATION",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R26": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SubsequentEventsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2117100 - Disclosure - SUBSEQUENT EVENT (Notes)",
     "role": "http://www.oxy.com/role/SubsequentEventNotes",
     "shortName": "SUBSEQUENT EVENT (Notes)",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:SubsequentEventsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R27": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2201201 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER (Policies)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER (Policies)",
     "subGroupType": "policies",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:BasisOfAccountingPolicyPolicyTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R28": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfInventoryCurrentTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2301302 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER (Tables)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherTables",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfInventoryCurrentTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R29": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2303301 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables)",
     "role": "http://www.oxy.com/role/PropertyPlantAndEquipmentTables",
     "shortName": "PROPERTY, PLANT AND EQUIPMENT (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:PropertyPlantAndEquipmentTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R3": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:PreferredStockSharesOutstanding",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1001501 - Statement - Consolidated Balance Sheets (Parenthetical)",
     "role": "http://www.oxy.com/role/ConsolidatedBalanceSheetsParenthetical",
     "shortName": "Consolidated Balance Sheets (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": null
    },
    "R30": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2304301 - Disclosure - ACQUISITIONS AND DIVESTITURES (Tables)",
     "role": "http://www.oxy.com/role/AcquisitionsAndDivestituresTables",
     "shortName": "ACQUISITIONS AND DIVESTITURES (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R31": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "crc:NonRedeemableAndRedeemableNoncontrollingInterestTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2305301 - Disclosure - JOINT VENTURES (Tables)",
     "role": "http://www.oxy.com/role/JointVenturesTables",
     "shortName": "JOINT VENTURES (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "crc:NonRedeemableAndRedeemableNoncontrollingInterestTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R32": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2306301 - Disclosure - DEBT (Tables)",
     "role": "http://www.oxy.com/role/DebtTables",
     "shortName": "DEBT (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R33": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LeaseCostTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2307301 - Disclosure - LEASES (Tables)",
     "role": "http://www.oxy.com/role/LeasesTables",
     "shortName": "LEASES (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:LeaseCostTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R34": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "srt:ContractualObligationFiscalYearMaturityScheduleTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2308301 - Disclosure - LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES (Tables)",
     "role": "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesTables",
     "shortName": "LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "srt:ContractualObligationFiscalYearMaturityScheduleTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R35": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2309301 - Disclosure - DERIVATIVES (Tables)",
     "role": "http://www.oxy.com/role/DerivativesTables",
     "shortName": "DERIVATIVES (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfDerivativeInstrumentsTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R36": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2310301 - Disclosure - INCOME TAXES (Tables)",
     "role": "http://www.oxy.com/role/IncomeTaxesTables",
     "shortName": "INCOME TAXES (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R37": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "crc:ScheduleofShareBasedCompensationExpenseTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2311301 - Disclosure - STOCK-BASED COMPENSATION (Tables)",
     "role": "http://www.oxy.com/role/StockBasedCompensationTables",
     "shortName": "STOCK-BASED COMPENSATION (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "crc:ScheduleofShareBasedCompensationExpenseTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R38": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2312301 - Disclosure - EQUITY (Tables)",
     "role": "http://www.oxy.com/role/EquityTables",
     "shortName": "EQUITY (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R39": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2313301 - Disclosure - EARNINGS PER SHARE (Tables)",
     "role": "http://www.oxy.com/role/EarningsPerShareTables",
     "shortName": "EARNINGS PER SHARE (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R4": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:DisaggregationOfRevenueTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1002000 - Statement - Consolidated Statements of Operations",
     "role": "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
     "shortName": "Consolidated Statements of Operations",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:ProductionCosts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R40": {
     "firstAnchor": {
      "ancestors": [
       "us-gaap:ChangesInProjectedBenefitObligationsFairValueOfPlanAssetsAndFundedStatusOfPlanTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAmountsRecognizedInBalanceSheetTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2314301 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS (Tables)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "us-gaap:ChangesInProjectedBenefitObligationsFairValueOfPlanAssetsAndFundedStatusOfPlanTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ScheduleOfAmountsRecognizedInBalanceSheetTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R41": {
     "firstAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisaggregationOfRevenueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2315301 - Disclosure - REVENUE RECOGNITION (Tables)",
     "role": "http://www.oxy.com/role/RevenueRecognitionTables",
     "shortName": "REVENUE RECOGNITION (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:DisaggregationOfRevenueTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R42": {
     "firstAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "srt:ScheduleOfCondensedBalanceSheetTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2316301 - Disclosure - CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Tables)",
     "role": "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationTables",
     "shortName": "CONDENSED CONSOLIDATING FINANCIAL INFORMATION (Tables)",
     "subGroupType": "tables",
     "uniqueAnchor": {
      "ancestors": [
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "srt:ScheduleOfCondensedBalanceSheetTableTextBlock",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R43": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "us-gaap:MajorCustomersPolicyPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_srt_MajorCustomersAxis_crc_PrincipalCustomersPhillips66CompanyAndValeroMarketingSupplyCompanyMember_us-gaap_ConcentrationRiskByBenchmarkAxis_crc_OilAndGasSalesAndOtherRevenueMember",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ConcentrationRiskPercentage1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401403 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Concentration of Customers (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Concentration of Customers (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "us-gaap:MajorCustomersPolicyPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_srt_MajorCustomersAxis_crc_PrincipalCustomersPhillips66CompanyAndValeroMarketingSupplyCompanyMember_us-gaap_ConcentrationRiskByBenchmarkAxis_crc_OilAndGasSalesAndOtherRevenueMember",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:ConcentrationRiskPercentage1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R44": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CapitalizedCostsMineralInterestsInUnprovedProperties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401404 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Property, Plant and Equipment (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Property, Plant and Equipment (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "us-gaap:PropertyPlantAndEquipmentPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:CapitalizedCostsMineralInterestsInUnprovedProperties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R45": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OtherInventorySupplies",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401405 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Inventories (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherInventoriesDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Inventories (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OtherInventorySupplies",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R46": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetRetirementObligationsNoncurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401406 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Asset Retirement Obligations (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Asset Retirement Obligations (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "us-gaap:ScheduleOfChangeInAssetRetirementObligationTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AssetRetirementObligationsNoncurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R47": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "us-gaap:IncomeTaxPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401407 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Income Taxes (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherIncomeTaxesDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Income Taxes (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "us-gaap:IncomeTaxPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R48": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "crc:ProductionSharingTypeContractsPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "crc:PercentageOfProductionThroughProductionSharingTypeContracts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401408 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Production Sharing - Type Contracts and Cash (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherProductionSharingTypeContractsAndCashDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Production Sharing - Type Contracts and Cash (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "crc:ProductionSharingTypeContractsPolicyTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "crc:PercentageOfProductionThroughProductionSharingTypeContracts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R49": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RestrictedCashAndCashEquivalents",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401409 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Cash (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherCashDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Cash (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RestrictedCashAndCashEquivalents",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R5": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProfitLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003000 - Statement - Consolidated Statements of Comprehensive Income",
     "role": "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome",
     "shortName": "Consolidated Statements of Comprehensive Income",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "lang": null,
      "name": "crc:OtherComprehensiveIncomeLossDefinedBenefitPlanUnrealizedGainLossReclassificationAdjustmentfromAOCIafterTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R50": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfOtherCurrentAssetsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DueFromJointVentures",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401410 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Other Current Assets (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Other Current Assets (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfOtherCurrentAssetsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DueFromJointVentures",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R51": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:AccruedCompensationRelatedCosts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401411 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Accrued Liabilities (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Accrued Liabilities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfAccruedLiabilitiesTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:AccruedCompensationRelatedCosts",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R52": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:InterestPaidNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2401412 - Disclosure - NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Supplemental Cash Flow Information (Details)",
     "role": "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails",
     "shortName": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER - Supplemental Cash Flow Information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:InterestPaidNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R53": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:LeaseOperatingBalanceSheetPresentationAndOtherInformationTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2402401 - Disclosure - ACCOUNTING AND DISCLOSURE CHANGES Recently Adopted Accounting Disclosure Changes (Details)",
     "role": "http://www.oxy.com/role/AccountingAndDisclosureChangesRecentlyAdoptedAccountingDisclosureChangesDetails",
     "shortName": "ACCOUNTING AND DISCLOSURE CHANGES Recently Adopted Accounting Disclosure Changes (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2019Q1Jan1_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_us-gaap_AccountingStandardsUpdate201602Member",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R54": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ImpairmentOfOilAndGasProperties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2403402 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details)",
     "role": "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails",
     "shortName": "PROPERTY, PLANT AND EQUIPMENT (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:ImpairmentOfOilAndGasProperties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R55": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "crc:AcquisitionsAndDivestituresTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2018Q2Apr01-Apr30",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:BusinessCombinationConsiderationTransferred1",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2404402 - Disclosure - ACQUISITIONS AND DIVESTITURES - Elk Hills Transaction Paragraph (Details)",
     "role": "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails",
     "shortName": "ACQUISITIONS AND DIVESTITURES - Elk Hills Transaction Paragraph (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "crc:AcquisitionsAndDivestituresTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2018Q2Apr01_us-gaap_BusinessAcquisitionAxis_crc_WorkingSurfaceAndMineralInterestsInElkHillsFieldMember",
      "decimals": "0",
      "lang": null,
      "name": "us-gaap:AreaOfLand",
      "reportCount": 1,
      "unique": true,
      "unitRef": "acre",
      "xsiNil": "false"
     }
    },
    "R56": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "crc:AcquisitionsAndDivestituresTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2018Q2Apr01-Apr30",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:BusinessCombinationConsiderationTransferred1",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2404403 - Disclosure - ACQUISITIONS AND DIVESTITURES - Elk Hills Table (Details)",
     "role": "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
     "shortName": "ACQUISITIONS AND DIVESTITURES - Elk Hills Table (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2018Q2Apr01-Apr01_us-gaap_BusinessAcquisitionAxis_crc_WorkingSurfaceAndMineralInterestsInElkHillsFieldMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:PaymentsToAcquireBusinessesGross",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R57": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:PurchaseOfAssetsNet",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2404404 - Disclosure - ACQUISITIONS AND DIVESTITURES - Office Building and Land (Details)",
     "role": "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails",
     "shortName": "ACQUISITIONS AND DIVESTITURES - Office Building and Land (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2018Q2Apr01-Apr30_us-gaap_PropertyPlantAndEquipmentByTypeAxis_us-gaap_LandAndBuildingMember",
      "decimals": "-6",
      "lang": null,
      "name": "crc:PurchaseOfAssetsNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R58": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "crc:AcquisitionsAndDivestituresTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2018Q2Apr01-Apr30",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:BusinessCombinationConsiderationTransferred1",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2404405 - Disclosure - ACQUISITIONS AND DIVESTITURES - Other Upstream Acquisitions (Details)",
     "role": "http://www.oxy.com/role/AcquisitionsAndDivestituresOtherUpstreamAcquisitionsDetails",
     "shortName": "ACQUISITIONS AND DIVESTITURES - Other Upstream Acquisitions (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_BusinessAcquisitionAxis_us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:BusinessCombinationConsiderationTransferred1",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R59": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2019Q2May1-May1",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "crc:PercentageOfWorkingInterestSold",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2404406 - Disclosure - ACQUISITIONS AND DIVESTITURES - Divestitures (Details)",
     "role": "http://www.oxy.com/role/AcquisitionsAndDivestituresDivestituresDetails",
     "shortName": "ACQUISITIONS AND DIVESTITURES - Divestitures (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2019Q2May1-May1",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "crc:PercentageOfWorkingInterestSold",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R6": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "link:footnote",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1003501 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical)",
     "role": "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncomeParenthetical",
     "shortName": "Consolidated Statements of Comprehensive Income (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "link:footnote",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R60": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405402 - Disclosure - JOINT VENTURES - Changes in Noncontrolling Interests (Details)",
     "role": "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails",
     "shortName": "JOINT VENTURES - Changes in Noncontrolling Interests (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:NonRedeemableAndRedeemableNoncontrollingInterestTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_StatementEquityComponentsAxis_us-gaap_NoncontrollingInterestMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R61": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "srt:ScheduleOfCondensedBalanceSheetTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RedeemableNoncontrollingInterestEquityCarryingAmount",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405403 - Disclosure - JOINT VENTURES - Mezzanine Equity (Details)",
     "role": "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails",
     "shortName": "JOINT VENTURES - Mezzanine Equity (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:NonRedeemableAndRedeemableNoncontrollingInterestTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_StatementClassOfStockAxis_crc_MezzanineEquityRedeemableNoncontrollingInterestMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:NoncontrollingInterestInNetIncomeLossJointVenturePartnersRedeemable",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R62": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProceedsFromMinorityShareholders",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405404 - Disclosure - JOINT VENTURES - Ares (Details)",
     "role": "http://www.oxy.com/role/JointVenturesAresDetails",
     "shortName": "JOINT VENTURES - Ares (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2018Q1Feb1-Feb28_us-gaap_TypeOfArrangementAxis_crc_AresJointVentureMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:ProceedsFromMinorityShareholders",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R63": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2017Q1Feb28_dei_LegalEntityAxis_crc_BenefitStreetPartnersMember_us-gaap_BusinessAcquisitionAxis_crc_JointVentureWithBenefitStreetPartnersMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:TotalInvestmentCommitmentInJointVentureMaximum",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405405 - Disclosure - JOINT VENTURES - BSP (Details)",
     "role": "http://www.oxy.com/role/JointVenturesBspDetails",
     "shortName": "JOINT VENTURES - BSP (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_dei_LegalEntityAxis_crc_BenefitStreetPartnersMember_us-gaap_BusinessAcquisitionAxis_crc_JointVentureWithBenefitStreetPartnersMember",
      "decimals": "-6",
      "lang": null,
      "name": "crc:TotalInvestmentCommitmentinJointVentureFundedtoDate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R64": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2019Q3",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "crc:JointVentureWorkingInterestRetainedInProperties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2405406 - Disclosure - JOINT VENTURES - Other (Details)",
     "role": "http://www.oxy.com/role/JointVenturesOtherDetails",
     "shortName": "JOINT VENTURES - Other (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2019Q3",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "crc:JointVentureWorkingInterestRetainedInProperties",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R65": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtInstrumentCarryingAmount",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406402 - Disclosure - DEBT - Schedule of long-term debt (Details)",
     "role": "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
     "shortName": "DEBT - Schedule of long-term debt (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_DebtInstrumentAxis_us-gaap_SeniorLienMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:DebtInstrumentCarryingAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R66": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_DebtInstrumentAxis_us-gaap_SecuredDebtMember",
      "decimals": "-9",
      "first": true,
      "lang": null,
      "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406403 - Disclosure - DEBT - 2014 Revolving Credit Facility (Details)",
     "role": "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
     "shortName": "DEBT - 2014 Revolving Credit Facility (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_DebtInstrumentAxis_us-gaap_SecuredDebtMember",
      "decimals": "-6",
      "lang": null,
      "name": "crc:LineOfCreditFacilityContingentIncreaseToMaximumBorrowingCapacity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R67": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDebtInstrumentsTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DebtInstrumentCarryingAmount",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406404 - Disclosure - DEBT - 2017 Credit Agreements (Details)",
     "role": "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
     "shortName": "DEBT - 2017 Credit Agreements (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2017Q4Nov30_us-gaap_DebtInstrumentAxis_crc_SecuredFirstLienSecondOutCreditAgreement2017Member",
      "decimals": "-8",
      "lang": null,
      "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R68": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:RepaymentsOfLinesOfCredit",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406405 - Disclosure - DEBT - 2016 Credit Agreements (Details)",
     "role": "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
     "shortName": "DEBT - 2016 Credit Agreements (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2016Q3Aug31_us-gaap_DebtInstrumentAxis_crc_SecuredFirstLienSecondOutCreditAgreementMember",
      "decimals": "-9",
      "lang": null,
      "name": "us-gaap:LineOfCreditFacilityMaximumBorrowingCapacity",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R69": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:GainLossOnRepurchaseOfDebtInstrument",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406406 - Disclosure - DEBT - Second Lien Notes (Details)",
     "role": "http://www.oxy.com/role/DebtSecondLienNotesDetails",
     "shortName": "DEBT - Second Lien Notes (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_DebtInstrumentAxis_us-gaap_SeniorLienMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:DebtInstrumentRepurchasedFaceAmount",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R7": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2016Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1004000 - Statement - Consolidated Statements of Equity",
     "role": "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
     "shortName": "Consolidated Statements of Equity",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2016Q4_us-gaap_StatementEquityComponentsAxis_us-gaap_AdditionalPaidInCapitalMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R70": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:GainLossOnRepurchaseOfDebtInstrument",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406407 - Disclosure - DEBT - Senior Notes (Details)",
     "role": "http://www.oxy.com/role/DebtSeniorNotesDetails",
     "shortName": "DEBT - Senior Notes (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2014Q4Oct01-Oct31_us-gaap_DebtInstrumentAxis_us-gaap_SeniorNotesMember",
      "decimals": "-7",
      "lang": null,
      "name": "us-gaap:ProceedsFromIssuanceOfDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R71": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:ScheduleofDeferredGainandIssuanceCostsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:DebtInstrumentUnamortizedPremiumOnExchangeOfDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406408 - Disclosure - DEBT - Deferred Gain and Issuance Costs (Details)",
     "role": "http://www.oxy.com/role/DebtDeferredGainAndIssuanceCostsDetails",
     "shortName": "DEBT - Deferred Gain and Issuance Costs (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:ScheduleofDeferredGainandIssuanceCostsTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:DebtInstrumentUnamortizedPremiumOnExchangeOfDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R72": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2406409 - Disclosure - DEBT - Other (Details)",
     "role": "http://www.oxy.com/role/DebtOtherDetails",
     "shortName": "DEBT - Other (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfMaturitiesOfLongTermDebtTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R73": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407402 - Disclosure - LEASES - Operating lease costs (Details)",
     "role": "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails",
     "shortName": "LEASES - Operating lease costs (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:LeaseCostTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseCost",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R74": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeasePayments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407403 - Disclosure - LEASES - Supplemental Cash Flows (Details)",
     "role": "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails",
     "shortName": "LEASES - Supplemental Cash Flows (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeasePayments",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R75": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:LeaseOperatingBalanceSheetPresentationAndOtherInformationTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseRightOfUseAsset",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407404 - Disclosure - LEASES - Supplement balance sheet information (Details)",
     "role": "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails",
     "shortName": "LEASES - Supplement balance sheet information (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:LeaseOperatingBalanceSheetPresentationAndOtherInformationTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:FinanceLeaseRightOfUseAsset",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R76": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseImpairmentLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407405 - Disclosure - LEASES - Finance lease liabilities (Details)",
     "role": "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails",
     "shortName": "LEASES - Finance lease liabilities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeaseImpairmentLoss",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R77": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2407406 - Disclosure - LEASES - Noncancelable operating leases (Details)",
     "role": "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails",
     "shortName": "LEASES - Noncancelable operating leases (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:OperatingLeasesFutureMinimumPaymentsDueCurrent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R78": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_crc_LongTermPurchaseAndContractualObligationMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ContractualObligationDueInNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2408402 - Disclosure - LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES (Details)",
     "role": "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails",
     "shortName": "LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_crc_LongTermPurchaseAndContractualObligationMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ContractualObligationDueInNextTwelveMonths",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R79": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeGainLossOnDerivativeNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409402 - Disclosure - DERIVATIVES - Commodity Price Risk (Details)",
     "role": "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
     "shortName": "DERIVATIVES - Commodity Price Risk (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeGainLossOnDerivativeNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R8": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2018Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:StockIssuedDuringPeriodValueNewIssues",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1004501 - Statement - Consolidated Statements of Equity (Parenthetical)",
     "role": "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
     "shortName": "Consolidated Statements of Equity (Parenthetical)",
     "subGroupType": "parenthetical",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "link:footnote",
       "td",
       "tr",
       "table",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2018Q4YTD_srt_CounterpartyNameAxis_crc_ChevronU.s.a.Inc.Member",
      "decimals": "-4",
      "lang": "en-US",
      "name": "us-gaap:StockIssuedDuringPeriodSharesNewIssues",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R80": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2018Q2May31_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_InterestRateCapMember",
      "decimals": "-8",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeAmountOfHedgedItem",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409403 - Disclosure - DERIVATIVES - Interest-Rate Contracts (Details)",
     "role": "http://www.oxy.com/role/DerivativesInterestRateContractsDetails",
     "shortName": "DERIVATIVES - Interest-Rate Contracts (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "I2018Q2May31_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_InterestRateCapMember",
      "decimals": "-8",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeAmountOfHedgedItem",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R81": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_CommodityContractMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2409404 - Disclosure - DERIVATIVES - Fair Value (Details)",
     "role": "http://www.oxy.com/role/DerivativesFairValueDetails",
     "shortName": "DERIVATIVES - Fair Value (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_DerivativeInstrumentRiskAxis_us-gaap_CommodityContractMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DerivativeAssetsLiabilitiesAtFairValueNet",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R82": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2410402 - Disclosure - INCOME TAXES - Income and Provision for Income Tax (Details)",
     "role": "http://www.oxy.com/role/IncomeTaxesIncomeAndProvisionForIncomeTaxDetails",
     "shortName": "INCOME TAXES - Income and Provision for Income Tax (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R83": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2410403 - Disclosure - INCOME TAXES - Income tax expense (benefit) (Details)",
     "role": "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails",
     "shortName": "INCOME TAXES - Income tax expense (benefit) (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "INF",
      "lang": null,
      "name": "us-gaap:EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R84": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:DeferredTaxAssetsLongTermDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2410404 - Disclosure - INCOME TAXES - Deferred Tax Assets and Liabilities (Details)",
     "role": "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails",
     "shortName": "INCOME TAXES - Deferred Tax Assets and Liabilities (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:DeferredTaxAssetsLongTermDebt",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R85": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:SummaryOfIncomeTaxContingenciesTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2018Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:UnrecognizedTaxBenefits",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2410405 - Disclosure - INCOME TAXES - Unrecognized Tax Benefits (Details)",
     "role": "http://www.oxy.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails",
     "shortName": "INCOME TAXES - Unrecognized Tax Benefits (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:SummaryOfIncomeTaxContingenciesTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2016Q4",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:UnrecognizedTaxBenefits",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R86": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411402 - Disclosure - STOCK-BASED COMPENSATION - General (Details)",
     "role": "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
     "shortName": "STOCK-BASED COMPENSATION - General (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R87": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:ScheduleofShareBasedCompensationExpenseTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AllocatedShareBasedCompensationExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411403 - Disclosure - STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION - Schedule of Stock-Based Compensation Expense (Details)",
     "role": "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetails",
     "shortName": "STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION - Schedule of Stock-Based Compensation Expense (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "crc:ScheduleofShareBasedCompensationExpenseTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AllocatedShareBasedCompensationExpense",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R88": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411404 - Disclosure - STOCK-BASED COMPENSATION - Restricted Stock (Details)",
     "role": "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails",
     "shortName": "STOCK-BASED COMPENSATION - Restricted Stock (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2018Q4_us-gaap_AwardTypeAxis_us-gaap_RestrictedStockMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R89": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411405 - Disclosure - STOCK-BASED COMPENSATION - Performance Stock Unit Awards (Details)",
     "role": "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
     "shortName": "STOCK-BASED COMPENSATION - Performance Stock Unit Awards (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_AwardTypeAxis_crc_PerformanceStockUnit2019AwardsMember",
      "decimals": "INF",
      "lang": null,
      "name": "crc:PercentageOfPerformanceTargetBasedOnSpecifiedVciResults",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R9": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProfitLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "statement",
     "isDefault": "false",
     "longName": "1005000 - Statement - Consolidated Statements of Cash Flows",
     "role": "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
     "shortName": "Consolidated Statements of Cash Flows",
     "subGroupType": "",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "lang": null,
      "name": "crc:AmortizationOfDeferredGains",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R90": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_AwardTypeAxis_us-gaap_StockOptionMember",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411406 - Disclosure - STOCK-BASED COMPENSATION - Stock Options (Details)",
     "role": "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails",
     "shortName": "STOCK-BASED COMPENSATION - Stock Options (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD_us-gaap_AwardTypeAxis_us-gaap_StockOptionMember",
      "decimals": null,
      "first": true,
      "lang": "en-US",
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward",
      "reportCount": 1,
      "unique": true,
      "unitRef": null,
      "xsiNil": "false"
     }
    },
    "R91": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-3",
      "first": true,
      "lang": null,
      "name": "us-gaap:ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411407 - Disclosure - STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION - Stock Awards (Details)",
     "role": "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationStockAwardsDetails",
     "shortName": "STOCK-BASED COMPENSATION STOCK-BASED COMPENSATION - Stock Awards (Details)",
     "subGroupType": "details",
     "uniqueAnchor": null
    },
    "R92": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2015Q1Jan01-Jan01_us-gaap_PlanNameAxis_crc_EmployeeStockPurchasePlanMember",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2411408 - Disclosure - STOCK-BASED COMPENSATION - Employee Stock Purchase Plan (Details)",
     "role": "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails",
     "shortName": "STOCK-BASED COMPENSATION - Employee Stock Purchase Plan (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "D2015Q1Jan01-Jan01_us-gaap_PlanNameAxis_crc_EmployeeStockPurchasePlanMember",
      "decimals": "2",
      "first": true,
      "lang": null,
      "name": "us-gaap:SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R93": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "us-gaap:CommonStockParOrStatedValuePerShare",
      "reportCount": 1,
      "unitRef": "usdPerShare",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2412402 - Disclosure - EQUITY (Details)",
     "role": "http://www.oxy.com/role/EquityDetails",
     "shortName": "EQUITY (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfCommonStockOutstandingRollForwardTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2017Q4_us-gaap_StatementClassOfStockAxis_us-gaap_CommonStockMember",
      "decimals": "-3",
      "lang": null,
      "name": "us-gaap:CommonStockSharesOutstanding",
      "reportCount": 1,
      "unique": true,
      "unitRef": "shares",
      "xsiNil": "false"
     }
    },
    "R94": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_dei_LegalEntityAxis_crc_ColonyCapitalInc.Member",
      "decimals": "-5",
      "first": true,
      "lang": null,
      "name": "us-gaap:ClassOfWarrantOrRightOutstanding",
      "reportCount": 1,
      "unitRef": "shares",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2412403 - Disclosure - EQUITY EQUITY - Fair Value Measurement Inputs and Valuation Techniques (Details)",
     "role": "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails",
     "shortName": "EQUITY EQUITY - Fair Value Measurement Inputs and Valuation Techniques (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_ClassOfWarrantOrRightAxis_crc_TrancheOneMember_us-gaap_MeasurementInputTypeAxis_us-gaap_MeasurementInputPriceVolatilityMember",
      "decimals": "4",
      "lang": null,
      "name": "us-gaap:WarrantsAndRightsOutstandingMeasurementInput",
      "reportCount": 1,
      "unique": true,
      "unitRef": "number",
      "xsiNil": "false"
     }
    },
    "R95": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:ProfitLoss",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2413402 - Disclosure - EARNINGS PER SHARE - Calculation of EPS (Details)",
     "role": "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails",
     "shortName": "EARNINGS PER SHARE - Calculation of EPS (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "ix:continuation",
       "us-gaap:ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FD2019Q4YTD",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:NetIncomeLossAvailableToCommonStockholdersBasic",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R96": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:SupplementalRetirementPlanSupplementalRetirementPlanAccruedLiabilities",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414402 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS - Defined Contribution Plans (Details)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedContributionPlansDetails",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS - Defined Contribution Plans (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "crc:SupplementalRetirementPlanSupplementalRetirementPlanAccruedLiabilities",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R97": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "crc:DefinedBenefitPlanNumberOfParticipatingEmployees",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Unit13",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414403 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS - Defined Benefit Plan (Details)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedBenefitPlanDetails",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS - Defined Benefit Plan (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "INF",
      "first": true,
      "lang": null,
      "name": "crc:DefinedBenefitPlanNumberOfParticipatingEmployees",
      "reportCount": 1,
      "unique": true,
      "unitRef": "Unit13",
      "xsiNil": "false"
     }
    },
    "R98": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "ix:continuation",
       "div",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax",
      "reportCount": 1,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414404 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS - Obligations and Funded Status of our Defined Benefit Plans (Details)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS - Obligations and Funded Status of our Defined Benefit Plans (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "div",
       "us-gaap:ScheduleOfAmountsRecognizedInBalanceSheetTableTextBlock",
       "us-gaap:ChangesInProjectedBenefitObligationsFairValueOfPlanAssetsAndFundedStatusOfPlanTableTextBlock",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "-6",
      "lang": null,
      "name": "us-gaap:PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    },
    "R99": {
     "firstAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     },
     "groupType": "disclosure",
     "isDefault": "false",
     "longName": "2414405 - Disclosure - PENSION AND POSTRETIREMENT BENEFIT PLANS - Obligations and Asset Fair Values (Details)",
     "role": "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails",
     "shortName": "PENSION AND POSTRETIREMENT BENEFIT PLANS - Obligations and Asset Fair Values (Details)",
     "subGroupType": "details",
     "uniqueAnchor": {
      "ancestors": [
       "span",
       "span",
       "div",
       "td",
       "tr",
       "table",
       "div",
       "us-gaap:ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock",
       "div",
       "ix:continuation",
       "div",
       "body",
       "html"
      ],
      "baseRef": "a2019ye10-kdocument.htm",
      "contextRef": "FI2019Q4_us-gaap_RetirementPlanTypeAxis_us-gaap_PensionPlansDefinedBenefitMember",
      "decimals": "-6",
      "first": true,
      "lang": null,
      "name": "us-gaap:DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation",
      "reportCount": 1,
      "unique": true,
      "unitRef": "usd",
      "xsiNil": "false"
     }
    }
   },
   "segmentCount": 164,
   "tag": {
    "crc_AbandonedTenantImprovementsImpairmentLoss": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Abandoned Tenant Improvements, Impairment Loss",
        "label": "Abandoned Tenant Improvements, Impairment Loss",
        "terseLabel": "Impairment of abandoned tenant improvements"
       }
      }
     },
     "localname": "AbandonedTenantImprovementsImpairmentLoss",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_AccruedCompensationRelatedCosts": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_AccruedLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accrued Compensation-related costs.",
        "label": "Accrued Compensation Related Costs",
        "verboseLabel": "Accrued employee-related costs"
       }
      }
     },
     "localname": "AccruedCompensationRelatedCosts",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_AcquisitionsAndDivestituresAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "No definition available.",
        "label": "ACQUISITIONS AND DIVESTITURES"
       }
      }
     },
     "localname": "AcquisitionsAndDivestituresAbstract",
     "nsuri": "http://www.oxy.com/20191231",
     "xbrltype": "stringItemType"
    },
    "crc_AcquisitionsAndDivestituresTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for acquisitions and divestitures.",
        "label": "Acquisitions and Divestitures [Text Block]",
        "terseLabel": "ACQUISITIONS AND DIVESTITURES"
       }
      }
     },
     "localname": "AcquisitionsAndDivestituresTextBlock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestitures"
     ],
     "xbrltype": "textBlockItemType"
    },
    "crc_AllowanceForDoubtfulAccounts1Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Allowance For Doubtful Accounts1 [Member]",
        "label": "Allowance For Doubtful Accounts1 [Member]",
        "terseLabel": "Allowance For Doubtful Accounts"
       }
      }
     },
     "localname": "AllowanceForDoubtfulAccounts1Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_AlpineJVMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Alpine JV [Member]",
        "label": "Alpine JV [Member]",
        "terseLabel": "Alpine JV"
       }
      }
     },
     "localname": "AlpineJVMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_AmortizationOfDeferredGains": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of amortization of deferred gains.",
        "label": "Amortization of Deferred Gains",
        "negatedLabel": "Amortization of deferred gain"
       }
      }
     },
     "localname": "AmortizationOfDeferredGains",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_ApplicationOfProceedsFromSaleOfNonborrowingBaseAssetsAfterRequiredPaymentOf2014RevolvingCreditFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The scenario when proceeds from sale of nonborrowing base assets are used to pay debt after required payment of 2014 Revolving Credit Facility.",
        "label": "Application Of Proceeds From Sale Of Nonborrowing Base Assets After Required Payment Of2014 Revolving Credit Facility [Member]",
        "verboseLabel": "Applications of proceeds from sale of nonborrowing base assets after required payment of 2014 RCF."
       }
      }
     },
     "localname": "ApplicationOfProceedsFromSaleOfNonborrowingBaseAssetsAfterRequiredPaymentOf2014RevolvingCreditFacilityMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ApprovalPercentageMeasuredByTotalExposureOfLendersForApprovalOfDecreaseInBorrowingBase": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Approval percentage measured by total exposure of lenders for approval of decreases in borrowing base.",
        "label": "Approval Percentage Measured By Total Exposure Of Lenders For Approval Of Decrease In Borrowing Base",
        "terseLabel": "Percentage of lenders to approve decreases or affirmations in borrowing base"
       }
      }
     },
     "localname": "ApprovalPercentageMeasuredByTotalExposureOfLendersForApprovalOfDecreaseInBorrowingBase",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_ApprovalPercentageMeasuredByTotalExposureOfLendersForApprovalOfIncreasesInBorrowingBase": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Approval percentage measured by total exposure of lenders for approval of increases in borrowing base.",
        "label": "Approval Percentage Measured By Total Exposure Of Lenders For Approval Of Increases In Borrowing Base",
        "verboseLabel": "Percentage of lenders to approve increases in borrowing base"
       }
      }
     },
     "localname": "ApprovalPercentageMeasuredByTotalExposureOfLendersForApprovalOfIncreasesInBorrowingBase",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_AresJointVentureMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Ares joint venture (Ares JV).",
        "label": "Ares Joint Venture [Member]",
        "terseLabel": "Ares JV"
       }
      }
     },
     "localname": "AresJointVentureMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_AresManagementL.P.InvestorGroupMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Ares Management L.P. led investor group.",
        "label": "Ares Management L. P. Investor Group [Member]",
        "terseLabel": "Ares-led investor group"
       }
      }
     },
     "localname": "AresManagementL.P.InvestorGroupMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_AsOfJuneAndDecemberMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Covenant period as of any June 30 and December 31.",
        "label": "As Of June And December [Member]",
        "terseLabel": "Any June 30 and December 31"
       }
      }
     },
     "localname": "AsOfJuneAndDecemberMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_AssetRetirementObligationAcquisitions": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in the asset retirement obligation from acquisition of businesses.",
        "label": "Asset Retirement Obligation Acquisitions",
        "terseLabel": "Acquisitions, capitalized to PP&amp;E"
       }
      }
     },
     "localname": "AssetRetirementObligationAcquisitions",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_AssetRetirementObligationDispositions": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents amount of the increase (decrease) in the amount of asset retirement obligations for the period associated with acquisitions activity.",
        "label": "Asset Retirement Obligation, Dispositions",
        "negatedTerseLabel": "Dispositions, reduction to PP&amp;E"
       }
      }
     },
     "localname": "AssetRetirementObligationDispositions",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_AssetRetirementObligationOther": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Asset Retirement Obligation, Other",
        "label": "Asset Retirement Obligation, Other",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "AssetRetirementObligationOther",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_BenefitStreetPartnersMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Benefit Street Partners (BSP).",
        "label": "Benefit Street Partners [Member]",
        "terseLabel": "BSP JV",
        "verboseLabel": "Benefit Street Partners"
       }
      }
     },
     "localname": "BenefitStreetPartnersMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_BlackScholesValuationMethodMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Black-Scholes valuation method member",
        "label": "Black Scholes Valuation Method [Member]",
        "terseLabel": "Black-Scholes valuation method"
       }
      }
     },
     "localname": "BlackScholesValuationMethodMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_BlendFundsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents information pertaining to blend funds.",
        "label": "Blend Funds [Member]",
        "terseLabel": "Blend funds"
       }
      }
     },
     "localname": "BlendFundsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_BondFundsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Mutual funds that invest in bonds issued by municipalities, corporations, and the US government and its agencies.",
        "label": "Bond Funds [Member]",
        "terseLabel": "Bond funds"
       }
      }
     },
     "localname": "BondFundsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedProvedProperties": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of proved properties recognized as of the acquisition date.",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Proved Properties",
        "verboseLabel": "Proved properties"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedProvedProperties",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_CashSettledEmployeeStockOptionAndStockAppreciationRightMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "An arrangement whereby an employee is entitled to receive in the future, subject to vesting and other restrictions, a number of shares and share appreciation rights in the entity at a specified price, which is settled in cash as defined in the agreement.",
        "label": "Cash Settled Employee Stock Option And Stock Appreciation Right [Member]",
        "terseLabel": "Cash-settled Awards"
       }
      }
     },
     "localname": "CashSettledEmployeeStockOptionAndStockAppreciationRightMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_CashSettledPerformanceStockUnitAwardsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cash settled performance stock unit awards member",
        "label": "Cash Settled Performance Stock Unit Awards [Member]",
        "terseLabel": "Cash-Settled PSU awards"
       }
      }
     },
     "localname": "CashSettledPerformanceStockUnitAwardsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_CashSettledRestrictedStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents stock with shares for which sale is contractually or governmentally restricted for a given period of time, which are settled in cash at the time of vesting.",
        "label": "Cash Settled Restricted Stock [Member]",
        "terseLabel": "Cash-Settled Restricted Stock"
       }
      }
     },
     "localname": "CashSettledRestrictedStockMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ChevronU.s.a.Inc.Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents information pertaining to Chevron U.S.A., Inc.",
        "label": "Chevron U.s.a. Inc. [Member]",
        "terseLabel": "Chevron"
       }
      }
     },
     "localname": "ChevronU.s.a.Inc.Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ColonyCapitalInc.Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Colony Capital, Inc. [Member]",
        "label": "Colony Capital, Inc. [Member]",
        "terseLabel": "Colony Capital, Inc."
       }
      }
     },
     "localname": "ColonyCapitalInc.Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_CommitmentsToInvestForEvaluationAndDevelopmentRemaining": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The remaining amount required to invest in evaluation and development activities.",
        "label": "Commitments to Invest for Evaluation and Development, Remaining",
        "terseLabel": "Remaining commitments to invest an oil and gas property"
       }
      }
     },
     "localname": "CommitmentsToInvestForEvaluationAndDevelopmentRemaining",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_ContractualObligationIncludingUndiscountedExcessAmount": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetailsCalc2": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contractual Obligation, Including Undiscounted Excess Amount",
        "label": "Contractual Obligation, Including Undiscounted Excess Amount",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "ContractualObligationIncludingUndiscountedExcessAmount",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_ContractualObligationUndiscountedExcessAmount": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetailsCalc2": {
       "order": 1.0,
       "parentTag": "crc_ContractualObligationIncludingUndiscountedExcessAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contractual Obligation, Undiscounted Excess Amount",
        "label": "Contractual Obligation, Undiscounted Excess Amount",
        "negatedTerseLabel": "Less: Interest"
       }
      }
     },
     "localname": "ContractualObligationUndiscountedExcessAmount",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_CostsAndOtherDeductions": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total costs of sales, operating expenses, and other operating expenses for the period.",
        "label": "Costs and Other Deductions",
        "totalLabel": "Total costs"
       }
      }
     },
     "localname": "CostsAndOtherDeductions",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_CreditAgreement201691DaysPriorToMaturity100MillionOutstandingMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The scenario when 2016 Credit Agreement has $100 million outstanding amount 91 days prior to maturity.",
        "label": "Credit Agreement201691 Days Prior To Maturity100 Million Outstanding [Member]",
        "terseLabel": "91 days prior to maturity of 2016 Credit Agreement"
       }
      }
     },
     "localname": "CreditAgreement201691DaysPriorToMaturity100MillionOutstandingMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtAgreementCovenantAmountOfCashOnHandAboveWhichAmountsOwedUnderRevolvingCreditFacilityMustBeRepaid": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash on hand above which amounts owed under the Revolving Credit Facility must be repaid",
        "label": "Debt agreement covenant Amount of cash on hand above which amounts owed under the Revolving Credit Facility must be repaid",
        "terseLabel": "Amount of cash on hand above which amounts owed under the Revolving Credit Facility must be repaid",
        "verboseLabel": "Amount of cash on hand above which amounts owed under the Revolving Credit Facility must be repaid"
       }
      }
     },
     "localname": "DebtAgreementCovenantAmountOfCashOnHandAboveWhichAmountsOwedUnderRevolvingCreditFacilityMustBeRepaid",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtAgreementCovenantMinimumLiquidityAfterRepurchaseOfCreditAgreementSeniorNotesOrSecondLienNotes": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of minimum liquidity to be maintained after repurchase of 2016 credit agreement, senior notes or second lies notes.",
        "label": "Debt Agreement Covenant Minimum Liquidity After Repurchase of Credit Agreement, Senior Notes Or Second Lien Notes",
        "verboseLabel": "Amount of minimum liquidity to be maintained using proceeds from non-borrowing base asset sales to repurchase senior notes or second lien notes"
       }
      }
     },
     "localname": "DebtAgreementCovenantMinimumLiquidityAfterRepurchaseOfCreditAgreementSeniorNotesOrSecondLienNotes",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtAgreementCovenantPercentOfProceedsFromNonBorrowingBaseAssetSalesThatMayBeUsedRepurchaseSeniorUnsecuredNotesOrSecondLienNotes": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percent of net cash proceeds from non-borrowing base asset sales that may be used repurchase senior unsecured notes or second lien notes",
        "label": "Debt agreement covenant Percent of proceeds from non-borrowing base asset sales that may be used repurchase senior unsecured notes or second lien notes",
        "verboseLabel": "Percent of net cash proceeds from non-borrowing base asset sales that must be used to repay the 2014 RCF"
       }
      }
     },
     "localname": "DebtAgreementCovenantPercentOfProceedsFromNonBorrowingBaseAssetSalesThatMayBeUsedRepurchaseSeniorUnsecuredNotesOrSecondLienNotes",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_DebtAgreementCovenantTrailingFourQuarterMaximumLeverageRatioDebtToEarningsBeforeInterestTaxesDepreciationAndAmortization": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum trailing four quarter adjusted EBITDAX under a credit agreement.",
        "label": "Debt Agreement Covenant Trailing Four Quarter Maximum Leverage Ratio, Debt To Earnings Before Interest, Taxes, Depreciation And Amortization",
        "verboseLabel": "Maximum leverage ratio"
       }
      }
     },
     "localname": "DebtAgreementCovenantTrailingFourQuarterMaximumLeverageRatioDebtToEarningsBeforeInterestTaxesDepreciationAndAmortization",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "crc_DebtBorrowingBase": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of money that maybe borrowed based on the value of the collateral the entity pledges.",
        "label": "Debt Borrowing Base",
        "verboseLabel": "Borrowing base"
       }
      }
     },
     "localname": "DebtBorrowingBase",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtInstrumentCarryingAmountCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      },
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DebtInstrumentCarryingAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.",
        "label": "Debt Instrument Carrying Amount Current",
        "negatedTerseLabel": "Less: Current Maturities",
        "terseLabel": "Current maturities of long-term debt"
       }
      }
     },
     "localname": "DebtInstrumentCarryingAmountCurrent",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtInstrumentCarryingAmountNoncurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      },
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DebtInstrumentCarryingAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt, classified as noncurrent. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.",
        "label": "Debt Instrument Carrying Amount Noncurrent",
        "terseLabel": "LONG-TERM DEBT",
        "verboseLabel": "Long-Term Debt"
       }
      }
     },
     "localname": "DebtInstrumentCarryingAmountNoncurrent",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtInstrumentCovenantAssetCoverageRatio": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the Asset Coverage Ratio under credit facility agreement.",
        "label": "Debt Instrument Covenant, Asset Coverage Ratio",
        "verboseLabel": "Minimum asset coverage ratio"
       }
      }
     },
     "localname": "DebtInstrumentCovenantAssetCoverageRatio",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "crc_DebtInstrumentCovenantMinimumInterestExpenseCoverageRatio": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the minimum interest expense coverage ratio as per the credit agreement.",
        "label": "Debt Instrument Covenant, Minimum Interest Expense Coverage Ratio",
        "verboseLabel": "Minimum interest coverage ratio"
       }
      }
     },
     "localname": "DebtInstrumentCovenantMinimumInterestExpenseCoverageRatio",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "crc_DebtInstrumentCovenantMinimumMonthlyLiquidity": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of minimum monthly liquidity required to maintain, per debt covenant agreement.",
        "label": "Debt Instrument Covenant Minimum Monthly Liquidity",
        "verboseLabel": "Financial covenant minimum month end liquidity"
       }
      }
     },
     "localname": "DebtInstrumentCovenantMinimumMonthlyLiquidity",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtInstrumentCovenantOutstandingAmountMaturityTrigger": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The outstanding amount of certain notes that triggers the acceleration of the maturity of debt instrument under a credit agreement.",
        "label": "Debt Instrument Covenant, Outstanding Amount, Maturity Trigger",
        "terseLabel": "Outstanding amount of 2016 Credit Agreement notes that triggers accelerated payment"
       }
      }
     },
     "localname": "DebtInstrumentCovenantOutstandingAmountMaturityTrigger",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtInstrumentCovenantProceedsFromNonBorrowingBaseAssetSalesThatMayBeUsedToRepurchaseSeniorNotesOrSecondLienNotes": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Proceeds from non-borrowing base asset sales that may be used repurchase senior unsecured notes or second lien notes.",
        "label": "Debt Instrument Covenant, Proceeds From Non-Borrowing Base Asset Sales That May be Used to Repurchase Senior Notes Or Second Lien Notes",
        "verboseLabel": "Net cash proceeds from non-borrowing base asset sales that are subject to percentage of repayment of the 2014 RCF"
       }
      }
     },
     "localname": "DebtInstrumentCovenantProceedsFromNonBorrowingBaseAssetSalesThatMayBeUsedToRepurchaseSeniorNotesOrSecondLienNotes",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtInstrumentFinancialPerformanceCovenantsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The tabular disclosure of debt instruments financial performance covenants.",
        "label": "Debt Instrument, Financial Performance Covenants [Table Text Block]",
        "terseLabel": "Schedule of financial performance covenants"
       }
      }
     },
     "localname": "DebtInstrumentFinancialPerformanceCovenantsTableTextBlock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "crc_DebtInstrumentRedemptionFromProceedsOfAssetSaleAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information about redemption of debt from sale of proceeds of assets.",
        "label": "Debt Instrument, Redemption From Proceeds Of Asset Sale [Axis]",
        "terseLabel": "Debt Instrument, Redemption From Proceeds Of Asset Sale [Axis]"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionFromProceedsOfAssetSaleAxis",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_DebtInstrumentRedemptionFromProceedsOfAssetSaleDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amounts from proceeds of assets that can be used to redeem or prepay debts.",
        "label": "Debt Instrument Redemption From Proceeds Of Asset Sale [Domain]",
        "terseLabel": "Debt Instrument Redemption From Proceeds Of Asset Sale [Domain]"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionFromProceedsOfAssetSaleDomain",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtInstrumentRedemptionPeriodAfterDecember152020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period after December 15, 2020 of debt redemption features under terms of the debt agreement.",
        "label": "Debt Instrument Redemption Period After December152020 [Member]",
        "terseLabel": "After December 15, 2020"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodAfterDecember152020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtInstrumentRedemptionPeriodDecember152018To2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period between December 15, 2018 to December 15, 2020 of debt redemption features under terms of the debt agreement.",
        "label": "Debt Instrument Redemption Period December152018 To2020 [Member]",
        "terseLabel": "Between December 15, 2018 and 2020"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodDecember152018To2020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtInstrumentRedemptionPeriodPriorToDecember152018Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period prior to December 15, 2018 of debt redemption features under terms of the debt agreement.",
        "label": "Debt Instrument Redemption Period Prior To December152018 [Member]",
        "terseLabel": "Prior to December 15, 2018"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodPriorToDecember152018Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtInstrumentRedemptionPriceChangOfControlPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage price of original principal amount of debt at which debt can be redeemed by the issuer in the event of change of control triggering event, as defined in the agreement.",
        "label": "Debt Instrument, Redemption Price, Chang Of Control, Percentage",
        "terseLabel": "Percentage of principal amount at which notes can be redeemed in case of change control"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPriceChangOfControlPercentage",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_DebtInstrumentRedemptionSaleOfAssetsBetween500MillionTo1BillionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount from proceeds of assets that can be used to redeem or prepay debts between $500 million to $1 billion.",
        "label": "Debt Instrument Redemption Sale Of Assets Between500 Million To1 Billion [Member]",
        "terseLabel": "Debt Instrument Redemption Sale Of Assets Between500 Million To1 Billion [Member]",
        "verboseLabel": "$500 million and $1 billion"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionSaleOfAssetsBetween500MillionTo1BillionMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtInstrumentRedemptionSaleOfAssetsInExcessOf1BillionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount from proceeds of assets that can be used to redeem or prepay debts in excess of $1 billion.",
        "label": "Debt Instrument Redemption Sale Of Assets In Excess Of1 Billion [Member]",
        "verboseLabel": "In excess of $1 billion"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionSaleOfAssetsInExcessOf1BillionMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtInstrumentRedemptionSaleOfAssetsUpTo500MillionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount from proceeds of assets that can be used to redeem or prepay debts up to $500 million.",
        "label": "Debt Instrument Redemption Sale Of Assets Up To500 Million [Member]",
        "terseLabel": "Debt Instrument Redemption Sale Of Assets Up To500 Million [Member]",
        "verboseLabel": "Up to $500 million"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionSaleOfAssetsUpTo500MillionMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtInstrumentRepurchasedOrExchangeFaceAmount": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face (par) amount of the original debt instrument that was repurchased or exchanged.",
        "label": "Debt Instrument, Repurchased Or Exchange Face Amount",
        "terseLabel": "Proceeds from Second Lien Notes used to reduce principal amount of senior note debt through exchange"
       }
      }
     },
     "localname": "DebtInstrumentRepurchasedOrExchangeFaceAmount",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtInstrumentUnamortizedPremiumOnExchangeOfDebt": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/DebtDeferredGainAndIssuanceCostsDetails": {
       "order": 1.0,
       "parentTag": "crc_DeferredGainLossAndIssuanceCostsNet",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of debt premium that was originally recognized on exchange of the instrument that has yet to be amortized.",
        "label": "Debt Instrument Unamortized Premium On Exchange Of Debt",
        "verboseLabel": "Deferred gain"
       }
      }
     },
     "localname": "DebtInstrumentUnamortizedPremiumOnExchangeOfDebt",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtDeferredGainAndIssuanceCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DebtInstrumentVariableRateBaseRateMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents alternate base rate",
        "label": "Debt Instrument Variable Rate Base Rate [Member]",
        "terseLabel": "Applicable margin on Alternate Base Rate loans"
       }
      }
     },
     "localname": "DebtInstrumentVariableRateBaseRateMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_DebtOriginalIssueDiscount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the amount of debt discount at the time of issuance.",
        "label": "Debt Original Issue Discount",
        "terseLabel": "Original issue discount"
       }
      }
     },
     "localname": "DebtOriginalIssueDiscount",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DeferredGainAndIssuanceCostsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "No definition available.",
        "label": "Deferred Gain and Issuance Costs [Abstract]",
        "terseLabel": "Deferred Gain and Issuance Costs [Abstract]"
       }
      }
     },
     "localname": "DeferredGainAndIssuanceCostsAbstract",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtDeferredGainAndIssuanceCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_DeferredGainLossAndIssuanceCostsNet": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      },
      "http://www.oxy.com/role/DebtDeferredGainAndIssuanceCostsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet of the deferred gain (loss) and issuance costs, net.",
        "label": "Deferred Gain (Loss) and Issuance Costs, Net",
        "terseLabel": "DEFERRED GAIN AND ISSUANCE COSTS, NET",
        "totalLabel": "Net deferred gain and issuance costs"
       }
      }
     },
     "localname": "DeferredGainLossAndIssuanceCostsNet",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/DebtDeferredGainAndIssuanceCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DeferredTaxAssetsInvestmentInPartnerships": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "It represents amount of investment in partnerships.",
        "label": "Deferred Tax Assets, Investment in Partnerships",
        "verboseLabel": "Deferred Tax Assets, investment in partnerships"
       }
      }
     },
     "localname": "DeferredTaxAssetsInvestmentInPartnerships",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DeferredTaxAssetsLongTermDebt": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Deferred tax assets, long-term debt",
        "label": "Deferred Tax Assets, long-term debt",
        "verboseLabel": "Deferred Tax Assets, debt"
       }
      }
     },
     "localname": "DeferredTaxAssetsLongTermDebt",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DefinedBenefitPlanHealthCareCostTrendRateConsumerPriceIndexIncrease": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents the assumed Consumer Price Index (CPI) increase used for projecting health care cost trend rates.",
        "label": "Defined Benefit Plan, Health Care Cost Trend Rate Consumer Price Index Increase",
        "verboseLabel": "U.S. Consumer Price Index (CPI) increase"
       }
      }
     },
     "localname": "DefinedBenefitPlanHealthCareCostTrendRateConsumerPriceIndexIncrease",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_DefinedBenefitPlanHealthCareCostTrendRateDecreaseUntilTheEighthYear": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The assumed health care cost trend rate annual decrease until the eighth year.",
        "label": "Defined Benefit Plan, Health Care Cost Trend Rate Decrease Until The Eighth Year",
        "terseLabel": "Annual decrease in healthcare cost in 2020"
       }
      }
     },
     "localname": "DefinedBenefitPlanHealthCareCostTrendRateDecreaseUntilTheEighthYear",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_DefinedBenefitPlanHealthCareCostTrendRateOnNinthYearandThereafter": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Defined Benefit Plan, Health Care Cost Trend Rate On Ninth Year and Thereafter",
        "label": "Defined Benefit Plan, Health Care Cost Trend Rate On Ninth Year and Thereafter",
        "terseLabel": "Projected ultimate health care cost trend rates after 2028"
       }
      }
     },
     "localname": "DefinedBenefitPlanHealthCareCostTrendRateOnNinthYearandThereafter",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_DefinedBenefitPlanHealthCareCostTrendRateOnTheEighthYear": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The assumed health care cost trend rate for on the eighth year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.",
        "label": "Defined Benefit Plan, Health Care Cost Trend Rate On The Eighth Year",
        "terseLabel": "Projected healthcare cost rate in 2028"
       }
      }
     },
     "localname": "DefinedBenefitPlanHealthCareCostTrendRateOnTheEighthYear",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_DefinedBenefitPlanNumberOfParticipatingEmployees": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents the number of employees currently accruing benefits under defined benefit plans.",
        "label": "Defined Benefit Plan, Number of Participating Employees",
        "terseLabel": "Number of employees accruing benefits under defined benefit plans"
       }
      }
     },
     "localname": "DefinedBenefitPlanNumberOfParticipatingEmployees",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedBenefitPlanDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "crc_DefinedContributionPlanandSupplementalPlanCost": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Defined Contribution Plan and Supplemental Plan, Cost",
        "label": "Defined Contribution Plan and Supplemental Plan, Cost",
        "verboseLabel": "Expenses under provisions of defined contribution and supplemental plans"
       }
      }
     },
     "localname": "DefinedContributionPlanandSupplementalPlanCost",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedContributionPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_DerivativeCashSettlementProceedsPayments": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of derivative, settlements paid.",
        "label": "Derivative Cash Settlement Proceeds (Payments)",
        "terseLabel": "Net proceeds (payments) on settled commodity derivatives"
       }
      }
     },
     "localname": "DerivativeCashSettlementProceedsPayments",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_EcrCorporateHoldingsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This member represents ECR corporate holdings",
        "label": "Ecr Corporate Holdings [Member]",
        "terseLabel": "ECR"
       }
      }
     },
     "localname": "EcrCorporateHoldingsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_EffectiveIncomeTaxRateReconciliationExclusionOfTaxAttributableToNoncontrolling": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 9.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Effective income tax rate reconciliation exclusion of tax attributable to noncontrolling.",
        "label": "Effective Income Tax Rate Reconciliation Exclusion of Tax Attributable to Noncontrolling",
        "terseLabel": "Exclusion of tax attributable to noncontrolling interests, net"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationExclusionOfTaxAttributableToNoncontrolling",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseCompensationPercent": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 8.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Compensation, Percent",
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Compensation, Percent",
        "terseLabel": "Nondeductible compensation, net"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseCompensationPercent",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "pureItemType"
    },
    "crc_ElkHillsTransactionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the Elk Hills Transaction.",
        "label": "Elk Hills Transaction [Member]",
        "terseLabel": "Elk Hills transaction"
       }
      }
     },
     "localname": "ElkHillsTransactionMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_EmployeeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Person or persons serving as employees.",
        "label": "Employee [Member]",
        "verboseLabel": "Employees"
       }
      }
     },
     "localname": "EmployeeMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_EmployeeSalaryandSeveranceMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Employee Salary and Severance [Member]",
        "label": "Employee Salary and Severance [Member]",
        "terseLabel": "Employee Salary and Severance"
       }
      }
     },
     "localname": "EmployeeSalaryandSeveranceMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_EmployeeStockPurchasePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Employee Stock Purchase Plan adopted by the entity.",
        "label": "Employee Stock Purchase Plan [Member]",
        "terseLabel": "Employee Stock Purchase Plan"
       }
      }
     },
     "localname": "EmployeeStockPurchasePlanMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_EndingThrough2019Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Covenant period for the year ending through 2019.",
        "label": "Ending Through2019 [Member]",
        "verboseLabel": "Through 2019"
       }
      }
     },
     "localname": "EndingThrough2019Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_FacilitiesAndOtherMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the facilities and other.",
        "label": "Facilities And Other [Member]",
        "terseLabel": "Facilities and other"
       }
      }
     },
     "localname": "FacilitiesAndOtherMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_FairValueOtherFinancialInstrumentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "No definition available.",
        "label": "Fair Value, Other Financial Instruments [Abstract]",
        "terseLabel": "Fair Value, Other Financial Instruments [Abstract]"
       }
      }
     },
     "localname": "FairValueOtherFinancialInstrumentsAbstract",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_FirstQuarterProduction2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the entity's production during the first quarter of 2020.",
        "label": "First Quarter Production2020 [Member]",
        "terseLabel": "Q1 2020"
       }
      }
     },
     "localname": "FirstQuarterProduction2020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_FourthQuarterProduction2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fourth Quarter Production 2020 [Member]",
        "label": "Fourth Quarter Production 2020 [Member]",
        "terseLabel": "Q4 2020"
       }
      }
     },
     "localname": "FourthQuarterProduction2020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_GasPlantAndPowerPlantAssetsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Assets used in gas plant and power plant.",
        "label": "Gas Plant And Power Plant Assets [Member]",
        "terseLabel": "Gas plant and power plant assets"
       }
      }
     },
     "localname": "GasPlantAndPowerPlantAssetsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_GrantDateAssumptionValuationMethodAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Grant-date assumptions used in the Block-Scholes valuation.",
        "label": "Grant Date Assumption Valuation Method [Axis]",
        "terseLabel": "Grant Date Assumption Valuation Method [Axis]"
       }
      }
     },
     "localname": "GrantDateAssumptionValuationMethodAxis",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_GrantDateAssumptionValuationMethodDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Grant date assumption valuation method domain",
        "label": "Grant Date Assumption Valuation Method [Domain]",
        "terseLabel": "Grant Date Assumption Valuation Method [Domain]"
       }
      }
     },
     "localname": "GrantDateAssumptionValuationMethodDomain",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_GrowthFundsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents information pertaining to growth funds that focus on growth.",
        "label": "Growth Funds [Member]",
        "terseLabel": "Growth funds"
       }
      }
     },
     "localname": "GrowthFundsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_GuaranteedDepositAccountMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents information pertaining to guaranteed deposit accounts.",
        "label": "Guaranteed Deposit Account [Member]",
        "terseLabel": "Guaranteed deposit account"
       }
      }
     },
     "localname": "GuaranteedDepositAccountMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_HedgeProductionPeriodsAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information about the production period subject to hedge instruments.",
        "label": "Hedge Production Periods [Axis]",
        "terseLabel": "Hedge Production Periods [Axis]"
       }
      }
     },
     "localname": "HedgeProductionPeriodsAxis",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_HedgeProductionPeriodsDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identified production period subject to hedge instruments.",
        "label": "Hedge Production Periods [Domain]",
        "terseLabel": "Hedge Production Periods [Domain]"
       }
      }
     },
     "localname": "HedgeProductionPeriodsDomain",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_IncomeTaxProvisionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Income Tax Provision [Member]",
        "label": "Income Tax Provision [Member]",
        "terseLabel": "Income Tax Provision"
       }
      }
     },
     "localname": "IncomeTaxProvisionMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_IncreaseDecreaseInCapitalInvestmentAccrual": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the information pertaining to changes in capital investment accruals",
        "label": "Increase Decrease In Capital Investment Accrual",
        "negatedLabel": "Changes in capital investment accruals"
       }
      }
     },
     "localname": "IncreaseDecreaseInCapitalInvestmentAccrual",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_InitialInvestmentCommitmentInJointVenture": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Initial Investment Commitment In Joint Venture",
        "label": "Initial Investment Commitment In Joint Venture",
        "terseLabel": "Initial commitment"
       }
      }
     },
     "localname": "InitialInvestmentCommitmentInJointVenture",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_InterestMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "It represents Interest income.",
        "label": "Interest [Member]",
        "terseLabel": "Interest income"
       }
      }
     },
     "localname": "InterestMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_InternationalEquityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents information of information equity.",
        "label": "International Equity [Member]",
        "terseLabel": "International equity"
       }
      }
     },
     "localname": "InternationalEquityMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_JointVentureInvestmentFundingPercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Joint Venture Investment Funding Percentage",
        "label": "Joint Venture Investment Funding Percentage",
        "terseLabel": "Funding provided by MIRA for development of properties (as a percent)"
       }
      }
     },
     "localname": "JointVentureInvestmentFundingPercentage",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_JointVentureInvestmentPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Joint Venture, Investment Period",
        "label": "Joint Venture, Investment Period",
        "terseLabel": "Joint venture investment period"
       }
      }
     },
     "localname": "JointVentureInvestmentPeriod",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_JointVentureTransactionCost": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Costs incurred by entity in entering into joint venture agreement.",
        "label": "Joint Venture Transaction Cost",
        "terseLabel": "Joint venture transaction cost"
       }
      }
     },
     "localname": "JointVentureTransactionCost",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_JointVentureWithBenefitStreetPartnersMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the information pertaining to joint venture with benefit street partners of divestitures and other.",
        "label": "Joint Venture With Benefit Street Partners [Member]",
        "terseLabel": "Joint Venture With Benefit Street Partners",
        "verboseLabel": "Joint venture with BSP"
       }
      }
     },
     "localname": "JointVentureWithBenefitStreetPartnersMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_JointVentureWithMacquarieInfrastructureAndRealAssetsIncMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the information pertaining to joint venture with Macquarie Infrastructure and Real Assets Inc (MIRA).",
        "label": "Joint Venture With Macquarie Infrastructure And Real Assets Inc [Member]",
        "terseLabel": "Joint Venture With Macquarie Infrastructure And Real Assets Inc"
       }
      }
     },
     "localname": "JointVentureWithMacquarieInfrastructureAndRealAssetsIncMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_JointVentureWorkingInterestAcquired": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "JointVentureWorkingInterestAcquired",
        "label": "Joint Venture Working Interest Acquired",
        "terseLabel": "Working interest acquired by MIRA (as a percent)"
       }
      }
     },
     "localname": "JointVentureWorkingInterestAcquired",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_JointVentureWorkingInterestAfterCounterpartyReturn": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Joint Venture Working Interest After Counterparty Return",
        "label": "Joint Venture Working Interest After Counterparty Return",
        "terseLabel": "CRC's working interest if MIRA receives cash distributions equal to a predetermined threshold return (as a percent)"
       }
      }
     },
     "localname": "JointVentureWorkingInterestAfterCounterpartyReturn",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_JointVentureWorkingInterestRetainedInProperties": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Joint Venture Working Interest Retained In Properties",
        "label": "Joint Venture Working Interest Retained In Properties",
        "terseLabel": "Working interest retained by CRC (as a percent)"
       }
      }
     },
     "localname": "JointVentureWorkingInterestRetainedInProperties",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_LeaseLiabilityCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_AccruedLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lease, Liability, Current",
        "label": "Lease, Liability, Current",
        "terseLabel": "Lease liability"
       }
      }
     },
     "localname": "LeaseLiabilityCurrent",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_LeaseOperatingBalanceSheetPresentationAndOtherInformationTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The tabular disclosure of the presentation of the operating lease balance sheet accounts and other information.",
        "label": "Lease Operating Balance Sheet Presentation And Other Information [Table Text Block]",
        "terseLabel": "Schedule of supplemental balance sheet information related to operating leases"
       }
      }
     },
     "localname": "LeaseOperatingBalanceSheetPresentationAndOtherInformationTableTextBlock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "crc_LeasesRightofUseAsset": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Leases, Right-of-Use Asset",
        "label": "Leases, Right-of-Use Asset",
        "totalLabel": "Total lease assets"
       }
      }
     },
     "localname": "LeasesRightofUseAsset",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_LesseeOperatingandFinanceLeasesOtherInformationTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lessee, Operating and Finance Leases, Other Information  [Table Text Block]",
        "label": "Lessee, Operating and Finance Leases, Other Information [Table Text Block]",
        "terseLabel": "Schedule of other operating and finance lease information"
       }
      }
     },
     "localname": "LesseeOperatingandFinanceLeasesOtherInformationTableTextBlock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "crc_LineOfCreditFacilityContingentIncreaseToMaximumBorrowingCapacity": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Increase to maximum borrowing capacity under the credit facility if any one or more of the existing or new lenders agree to provide such increased commitment amount.",
        "label": "Line of Credit Facility Contingent Increase to Maximum Borrowing Capacity",
        "verboseLabel": "Increase to maximum borrowing capacity with lender approval"
       }
      }
     },
     "localname": "LineOfCreditFacilityContingentIncreaseToMaximumBorrowingCapacity",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_LineOfCreditFacilityMaximumBorrowingCapacityLettersOfCreditSublimit": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum borrowing capacity of letters of credit as sub-limit of the main credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.",
        "label": "Line Of Credit Facility Maximum Borrowing Capacity Letters Of Credit Sublimit",
        "verboseLabel": "Maximum sub-limit on borrowing capacity for issuance of letters of credit"
       }
      }
     },
     "localname": "LineOfCreditFacilityMaximumBorrowingCapacityLettersOfCreditSublimit",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_LongTermDebtMaturitiesRepaymentsOfPrincipalInDecember2021": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable in December 2021.",
        "label": "Long Term Debt Maturities Repayments Of Principal In December 2021",
        "terseLabel": "Principal amount due by December 2021"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInDecember2021",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_LongTermDebtMaturitiesRepaymentsOfPrincipalInDecember2022": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long term debt payable in December 2022.",
        "label": "Long Term Debt Maturities Repayments Of Principal In December 2022",
        "terseLabel": "Principal amount due by December 2022"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInDecember2022",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_LongTermDebtMaturitiesRepaymentsOfPrincipalInJune2021": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable in June 2021.",
        "label": "Long Term Debt Maturities Repayments Of Principal In June 2021",
        "terseLabel": "Principal amount due by June 2021"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInJune2021",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_LongTermDebtMaturitiesRepaymentsOfPrincipalInJune2022": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable in June 2022.",
        "label": "Long Term Debt Maturities Repayments Of Principal In June 2022",
        "terseLabel": "Principal amount due by June 2022"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInJune2022",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_LongTermIncentivePlanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Long-Term Incentive Plan (the Plan).",
        "label": "Long Term Incentive Plan [Member]",
        "terseLabel": "Long-Term Incentive Plan"
       }
      }
     },
     "localname": "LongTermIncentivePlanMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_LongTermPurchaseAndContractualObligationMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the information pertains to long term purchase and contractual obligations.",
        "label": "Long Term Purchase And Contractual Obligation [Member]",
        "terseLabel": "Long Term Purchase and Contractual Obligation"
       }
      }
     },
     "localname": "LongTermPurchaseAndContractualObligationMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_MacquarieInfrastructureAndRealAssetsIncMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Macquarie Infrastructure and Real Assets Inc. (MIRA).",
        "label": "Macquarie Infrastructure And Real Assets Inc [Member]",
        "terseLabel": "MIRA"
       }
      }
     },
     "localname": "MacquarieInfrastructureAndRealAssetsIncMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_MarathonPetroleumCorporationFormerlyAndeavorMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the customers Marathon Petroleum Corporation (formerly Andeavor).",
        "label": "Marathon Petroleum Corporation Formerly Andeavor [Member]",
        "terseLabel": "Marathon Petroleum Corporation Formerly Andeavor"
       }
      }
     },
     "localname": "MarathonPetroleumCorporationFormerlyAndeavorMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_MarketingTradingandOtherMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Marketing, Trading, and Other",
        "label": "Marketing, Trading, and Other [Member]",
        "terseLabel": "Marketing, trading and other"
       }
      }
     },
     "localname": "MarketingTradingandOtherMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_MezzanineEquityRedeemableNoncontrollingInterestMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents mezzanine equity redeemable noncontrolling interest.",
        "label": "Mezzanine Equity Redeemable Noncontrolling Interest [Member]",
        "terseLabel": "Mezzanine Equity Redeemable Noncontrolling Interest",
        "verboseLabel": "Mezzanine Equity - Redeemable Noncontrolling Interest - Ares"
       }
      }
     },
     "localname": "MezzanineEquityRedeemableNoncontrollingInterestMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails",
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_MonthlyDistributionsDeferralPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period of which monthly distributions can be deferred, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days",
        "label": "Monthly Distributions Deferral Period",
        "terseLabel": "Period in which monthly distributions can be deferred"
       }
      }
     },
     "localname": "MonthlyDistributionsDeferralPeriod",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_NaturalGasPowerAndGasProcessingPlantsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Natural Gas Power And Gas Processing Plants.",
        "label": "Natural Gas Power And Gas Processing Plants [Member]",
        "terseLabel": "Natural gas power and Gas processing plants"
       }
      }
     },
     "localname": "NaturalGasPowerAndGasProcessingPlantsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "No definition available.",
        "label": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER"
       }
      }
     },
     "localname": "NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAbstract",
     "nsuri": "http://www.oxy.com/20191231",
     "xbrltype": "stringItemType"
    },
    "crc_NonRedeemableAndRedeemableNoncontrollingInterestTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of non-redeemable and redeemable noncontrolling interest.",
        "label": "Non-redeemable and Redeemable Noncontrolling Interest [Table Text Block]",
        "terseLabel": "Schedule of changes in noncontrolling interests"
       }
      }
     },
     "localname": "NonRedeemableAndRedeemableNoncontrollingInterestTableTextBlock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "crc_NoncontrollingInterestDecreaseFromDistributionsToRedeemableNoncontrollingInterestHolders": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Decrease in redeemable noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.",
        "label": "Noncontrolling Interest, Decrease from Distributions to Redeemable Noncontrolling Interest Holders",
        "negatedLabel": "Distributions to noncontrolling interest holders"
       }
      }
     },
     "localname": "NoncontrollingInterestDecreaseFromDistributionsToRedeemableNoncontrollingInterestHolders",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_NumberOfCommitmentsFunded": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of commitments funded",
        "label": "Number Of Commitments Funded",
        "terseLabel": "Number of equal funding contributions"
       }
      }
     },
     "localname": "NumberOfCommitmentsFunded",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesBspDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "crc_NumberOfConsecutiveScheduledRedeterminations": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the number of consecutive scheduled redeterminations during which the reporting entity and the lenders may request for special redeterminations.",
        "label": "Number Of Consecutive Scheduled Redeterminations",
        "terseLabel": "Number of consecutive redeterminations between which CRC or lenders can request a special redetermination"
       }
      }
     },
     "localname": "NumberOfConsecutiveScheduledRedeterminations",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "crc_NumberOfWellsAgreedForDrilling": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number Of Wells Agreed For Drilling",
        "label": "Number Of Wells Agreed For Drilling",
        "terseLabel": "Number of wells agreed for drilling under JV program"
       }
      }
     },
     "localname": "NumberOfWellsAgreedForDrilling",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "crc_NumberofTranches": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of Tranches",
        "label": "Number of Tranches",
        "terseLabel": "Number of tranches"
       }
      }
     },
     "localname": "NumberofTranches",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "crc_OilAndGasFieldDevelopmentPlanValue": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Estimated minimum value of development program in a field that is being sold.",
        "label": "Oil And Gas Field, Development Plan, Value",
        "terseLabel": "Minimum value of well development plan of Lost Hills field"
       }
      }
     },
     "localname": "OilAndGasFieldDevelopmentPlanValue",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresDivestituresDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_OilAndGasNumberOfDevelopmentPlanIncludedInFieldSold": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number wells to be drilled in the development program in a field that is being sold.",
        "label": "Oil And Gas, Number Of Development Plan Included In Field Sold",
        "terseLabel": "Number of well development plan included in the sale of Lost Hills field"
       }
      }
     },
     "localname": "OilAndGasNumberOfDevelopmentPlanIncludedInFieldSold",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresDivestituresDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "crc_OilAndGasSalesAndOtherRevenueMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the oil and gas sales and other revenue.",
        "label": "Oil And Gas Sales And Other Revenue [Member]",
        "terseLabel": "Oil And Gas Sales And Other Revenue"
       }
      }
     },
     "localname": "OilAndGasSalesAndOtherRevenueMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_OneMonthLiborMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents one month LIBOR.",
        "label": "One Month Libor [Member]",
        "terseLabel": "One month LIBOR"
       }
      }
     },
     "localname": "OneMonthLiborMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_OneMonthLondonInterbankOfferedRateLIBORMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.  This is the LIBOR for a one month deposit in U.S. Dollars on the last business day of the previous month.",
        "label": "One Month London Interbank Offered Rate L I B O R [Member]",
        "verboseLabel": "Alternative Base Rate Loan One-Month LIBOR"
       }
      }
     },
     "localname": "OneMonthLondonInterbankOfferedRateLIBORMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_OperatingLeaseCashPaymentsInvesting": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Operating Lease Cash Payments, Investing",
        "label": "Operating Lease Cash Payments, Investing",
        "terseLabel": "Investing cash flows"
       }
      }
     },
     "localname": "OperatingLeaseCashPaymentsInvesting",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_OrganizationalChangesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Organizational Changes [Member]",
        "label": "Organizational Changes [Member]",
        "terseLabel": "Organizational Changes"
       }
      }
     },
     "localname": "OrganizationalChangesMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_OrganizationalRedesignExpectedCostRemaining": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Organizational Redesign, Expected Cost Remaining",
        "label": "Organizational Redesign, Expected Cost Remaining",
        "terseLabel": "Expected cost remaining"
       }
      }
     },
     "localname": "OrganizationalRedesignExpectedCostRemaining",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_OrganizationalRedesignIncurredCost": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Organizational Redesign, Incurred Cost",
        "label": "Organizational Redesign, Incurred Cost",
        "terseLabel": "Incurred cost"
       }
      }
     },
     "localname": "OrganizationalRedesignIncurredCost",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_OrganizationalRedesignNumberofPositionsRemaining": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Organizational Redesign, Number of Positions Remaining",
        "label": "Organizational Redesign, Number of Positions Remaining",
        "terseLabel": "Number of positions remaining"
       }
      }
     },
     "localname": "OrganizationalRedesignNumberofPositionsRemaining",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "integerItemType"
    },
    "crc_OtherAssetsCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "No definition required",
        "label": "Other Assets Current Abstract",
        "terseLabel": "Other current assets"
       }
      }
     },
     "localname": "OtherAssetsCurrentAbstract",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_OtherComprehensiveIncomeDefinedBenefitPlanRecognizedNetGainLossDueToSettlementsBeforeTax": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of net gain (loss) due to settlements changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that has not been recognized in net periodic benefit cost (credit) before tax.",
        "label": "Other Comprehensive Income Defined Benefit Plan Recognized Net Gain (Loss) Due to Settlements Before Tax",
        "terseLabel": "Settlement costs"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeDefinedBenefitPlanRecognizedNetGainLossDueToSettlementsBeforeTax",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_OtherComprehensiveIncomeDefinedBenefitPlanReversalOfAmortizationOfNetActuarialGainLossBeforeTax": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of reversal of amortization of net actuarial gain (loss) after tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit before tax.",
        "label": "Other Comprehensive Income Defined Benefit Plan Reversal of Amortization of Net Actuarial Gain (Loss) Before Tax",
        "negatedLabel": "Amortization of net actuarial gain/loss"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeDefinedBenefitPlanReversalOfAmortizationOfNetActuarialGainLossBeforeTax",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_OtherComprehensiveIncomeLossDefinedBenefitPlanRealizedGainLossReclassificationAdjustmentfromAOCIafterTax": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other Comprehensive Income (Loss), Defined Benefit Plan, Realized Gain (Loss), Reclassification Adjustment from AOCI, after Tax",
        "label": "Other Comprehensive Income (Loss), Defined Benefit Plan, Realized Gain (Loss), Reclassification Adjustment from AOCI, after Tax",
        "negatedTerseLabel": "Reclassification of realized losses on pension and postretirement to income"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossDefinedBenefitPlanRealizedGainLossReclassificationAdjustmentfromAOCIafterTax",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_OtherComprehensiveIncomeLossDefinedBenefitPlanUnrealizedGainLossReclassificationAdjustmentfromAOCIafterTax": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other Comprehensive Income (Loss), Defined Benefit Plan, Unrealized Gain (Loss), Reclassification Adjustment from AOCI, after Tax",
        "label": "Other Comprehensive Income (Loss), Defined Benefit Plan, Unrealized Gain (Loss), Reclassification Adjustment from AOCI, after Tax",
        "negatedLabel": "Reclassification of unrealized gains (losses) on pension and postretirement losses"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossDefinedBenefitPlanUnrealizedGainLossReclassificationAdjustmentfromAOCIafterTax",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_OtherDebtCovenantsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "No definition available.",
        "label": "Other Debt Covenants [Abstract]",
        "terseLabel": "Other covenants"
       }
      }
     },
     "localname": "OtherDebtCovenantsAbstract",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_OtherOilAndGasPropertyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents other oil and gas property.",
        "label": "Other Oil And Gas Property [Member]",
        "terseLabel": "Other oil and gas property"
       }
      }
     },
     "localname": "OtherOilAndGasPropertyMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_OtherTerminationBenefitsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Other Termination Benefits [Member]",
        "label": "Other Termination Benefits [Member]",
        "terseLabel": "Other Termination Benefits"
       }
      }
     },
     "localname": "OtherTerminationBenefitsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PercentOfCommitmentRequiredToBeHeldByLendersInOrderToRequestSpecialRedetermination": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the percent of commitment required to be held by lenders in order to request a special redetermination.",
        "label": "Percent Of Commitment Required To Be Held By Lenders In Order To Request Special Redetermination",
        "terseLabel": "Percentage of lenders to request special redetermination in borrowing base"
       }
      }
     },
     "localname": "PercentOfCommitmentRequiredToBeHeldByLendersInOrderToRequestSpecialRedetermination",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentOfTargetAwardThatWouldSettleFullyStock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percent of the target award that would settle, once certified, fully in stock, including awards that were originally designated to settle in cash but were modified to settle in stocks.",
        "label": "Percent Of Target Award That Would Settle Fully Stock",
        "terseLabel": "Percentage of payouts target awards"
       }
      }
     },
     "localname": "PercentOfTargetAwardThatWouldSettleFullyStock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentageOfAwardsGrantedInCash": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of awards granted in cash.",
        "label": "Percentage of Awards Granted in Cash",
        "terseLabel": "Percentage of awards to be paid in cash"
       }
      }
     },
     "localname": "PercentageOfAwardsGrantedInCash",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentageOfAwardsGrantedInStock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of awards granted in stock.",
        "label": "Percentage of Awards Granted in Stock",
        "terseLabel": "Percentage of awards to be paid in stock"
       }
      }
     },
     "localname": "PercentageOfAwardsGrantedInStock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentageOfHoldingAssetsBySubsidiariesInConsolidatedAssets": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of total consolidated assets under financing agreement by subsidiary.",
        "label": "Percentage Of Holding Assets By subsidiaries In Consolidated Assets",
        "terseLabel": "Percentage of holding assets by subsidiaries in consolidated assets"
       }
      }
     },
     "localname": "PercentageOfHoldingAssetsBySubsidiariesInConsolidatedAssets",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentageOfOperatingCostsReportedUnderProductionSharingTypeContracts": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The percentage of operating costs reported under PSCs.",
        "label": "Percentage of Operating Costs Reported Under Production Sharing Type Contracts",
        "terseLabel": "Percentage of operating costs reported under PSC-type contracts"
       }
      }
     },
     "localname": "PercentageOfOperatingCostsReportedUnderProductionSharingTypeContracts",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherProductionSharingTypeContractsAndCashDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentageOfPerformanceTargetBasedOnCrcCombinedProductionCostsComparedToChangeInProductionCosts": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of performance target based on CRC combined production costs compared to change in production costs.",
        "label": "Percentage of Performance Target Based on CRC Combined Production Costs Compared to Change in Production Costs",
        "terseLabel": "Percentage of performance target based on CRC combined production costs compared to change in peer group production costs"
       }
      }
     },
     "localname": "PercentageOfPerformanceTargetBasedOnCrcCombinedProductionCostsComparedToChangeInProductionCosts",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentageOfPerformanceTargetBasedOnSpecifiedVciResults": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of performance target based on specified VCI results",
        "label": "Percentage of performance target based on specified VCI results",
        "terseLabel": "Percentage of PSU performance target based on specified VCI results"
       }
      }
     },
     "localname": "PercentageOfPerformanceTargetBasedOnSpecifiedVciResults",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentageOfProductionThroughProductionSharingTypeContracts": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of represented by production sharing type contracts.",
        "label": "Percentage of Production Through Production Sharing Type Contracts",
        "terseLabel": "Percentage of production represented by PSC-type contracts"
       }
      }
     },
     "localname": "PercentageOfProductionThroughProductionSharingTypeContracts",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherProductionSharingTypeContractsAndCashDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PercentageOfWorkingInterestSold": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The percentage of working interest sold.",
        "label": "Percentage of Working Interest Sold",
        "terseLabel": "Working interest in Lost Hills field sold"
       }
      }
     },
     "localname": "PercentageOfWorkingInterestSold",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresDivestituresDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PerformanceStockUnit2018AwardsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents performance stock unit awarded in 2018.",
        "label": "Performance Stock Unit2018 Awards [Member]",
        "terseLabel": "PSU 2018 Awards"
       }
      }
     },
     "localname": "PerformanceStockUnit2018AwardsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PerformanceStockUnit2019AwardsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Performance Stock Unit 2019 Awards [Member]",
        "label": "Performance Stock Unit 2019 Awards [Member]",
        "terseLabel": "PSU 2019 Awards"
       }
      }
     },
     "localname": "PerformanceStockUnit2019AwardsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PeriodBeforeMaturityOfSecondDebtMaturityOfFirstDebtThatTriggersAcceleratedPayment": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period before maturity of the second debt that triggers accelerated payment when the first debt matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Includes, but not limited to, weeks in a year or quarter.",
        "label": "Period Before Maturity of Second Debt, Maturity of First Debt that Triggers Accelerated Payment",
        "terseLabel": "Period before maturity of the 2016 Credit Agreement notes that triggers accelerated payment",
        "verboseLabel": "Period before maturity of the 2016 Credit Agreement that triggers accelerated payment"
       }
      }
     },
     "localname": "PeriodBeforeMaturityOfSecondDebtMaturityOfFirstDebtThatTriggersAcceleratedPayment",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_PeriodBeforeToMaturityOfCreditFacilityPriorToWhichPrepaymentPremiumApplies": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period before maturity of credit facility prior to which prepayment premium applies, , in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Period Before To Maturity Of Credit Facility Prior To Which Prepayment Premium Applies",
        "terseLabel": "Period prior to maturity before which prepayment premium applies"
       }
      }
     },
     "localname": "PeriodBeforeToMaturityOfCreditFacilityPriorToWhichPrepaymentPremiumApplies",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_PeriodCoveredByCovenantAgreementAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information about the period subject to covenant agreement.",
        "label": "Period Covered By Covenant Agreement [Axis]",
        "terseLabel": "Period Covered By Covenant Agreement [Axis]"
       }
      }
     },
     "localname": "PeriodCoveredByCovenantAgreementAxis",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_PeriodCoveredByCovenantAgreementDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identified period covered by covenant agreement.",
        "label": "Period Covered By Covenant Agreement [Domain]",
        "terseLabel": "Period Covered By Covenant Agreement [Domain]"
       }
      }
     },
     "localname": "PeriodCoveredByCovenantAgreementDomain",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PeriodOfMakeWholePaymentAndMaximumRedemptionPeriod": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The period of make whole payment and maximum redemption period.",
        "label": "Period of Make Whole Payment and Maximum Redemption Period",
        "terseLabel": "Make-whole payment redemption period"
       }
      }
     },
     "localname": "PeriodOfMakeWholePaymentAndMaximumRedemptionPeriod",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_Phillips66CompanyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Phillips 66 Company, a major customer.",
        "label": "Phillips66 Company [Member]",
        "terseLabel": "Phillips66 Company"
       }
      }
     },
     "localname": "Phillips66CompanyMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PlanAssetsGrossMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of all major categories of plan assets based on the nature and risk of assets in an employer's plan(s).",
        "label": "Plan Assets Gross [Member]",
        "terseLabel": "Pension Plan Assets - Gross"
       }
      }
     },
     "localname": "PlanAssetsGrossMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PotentialTotalInvestmentCommitmentinJointVenture": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Potential Total Investment Commitment in Joint Venture",
        "label": "Potential Total Investment Commitment in Joint Venture",
        "terseLabel": "Potential total investment commitment in joint venture"
       }
      }
     },
     "localname": "PotentialTotalInvestmentCommitmentinJointVenture",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_PremiumPercentageOnPrepaymentOfDebt": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of premium payable in prepayment of debt.",
        "label": "Premium Percentage on Prepayment of Debt",
        "terseLabel": "Premium on prepayment of debt (as a percent)"
       }
      }
     },
     "localname": "PremiumPercentageOnPrepaymentOfDebt",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_PrincipalCustomersMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents principal customers Company, a major customer.",
        "label": "Principal Customers [Member]",
        "terseLabel": "Principal customers"
       }
      }
     },
     "localname": "PrincipalCustomersMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PrincipalCustomersPhillips66CompanyAndValeroMarketingSupplyCompanyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents information pertaining to the customers principal customers, Phillips 66 Company and Valero Marketing &amp; Supply Company combined.",
        "label": "Principal Customers Phillips66 Company And Valero Marketing Supply Company [Member]",
        "terseLabel": "Principal customers, Phillips 66 Company and Valero Marketing &amp; Supply Company"
       }
      }
     },
     "localname": "PrincipalCustomersPhillips66CompanyAndValeroMarketingSupplyCompanyMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PrincipalCustomersPhillips66CompanyMarathonPetroleumCorporationFormerlyAndeavorValeroMarketingSupplyCompanyAndShellTradingUsCompanyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the customers principal customers, Phillips 66 Company, Marathon Petroleum Corporation (formerly Andeavor), Valero Marketing &amp; Supply Company and Shell Trading (US) Company combined.",
        "label": "Principal Customers Phillips66 Company Marathon Petroleum Corporation Formerly Andeavor Valero Marketing Supply Company And Shell Trading Us Company [Member]",
        "terseLabel": "Principal customers, Phillips 66 Company, Andeavor, Valero Marketing &amp; Supply Company and Shell Trading (US) Company"
       }
      }
     },
     "localname": "PrincipalCustomersPhillips66CompanyMarathonPetroleumCorporationFormerlyAndeavorValeroMarketingSupplyCompanyAndShellTradingUsCompanyMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ProceedsFromSaleofProductiveAssetsIncludingPurchasePriceAdjustment": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Proceeds From Sale of Productive Assets Including Purchase Price Adjustment",
        "label": "Proceeds From Sale of Productive Assets Including Purchase Price Adjustment",
        "terseLabel": "Proceeds from divestiture of business"
       }
      }
     },
     "localname": "ProceedsFromSaleofProductiveAssetsIncludingPurchasePriceAdjustment",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresDivestituresDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_ProductionCostsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing expenses associated with production costs.",
        "label": "Production Costs [Member]",
        "terseLabel": "Production costs"
       }
      }
     },
     "localname": "ProductionCostsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ProductionSharingTypeContractsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "No definition available.",
        "label": "Production Sharing Type Contracts [Abstract]",
        "terseLabel": "Production Sharing Type Contracts"
       }
      }
     },
     "localname": "ProductionSharingTypeContractsAbstract",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherProductionSharingTypeContractsAndCashDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "crc_ProductionSharingTypeContractsPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for production sharing type contracts.",
        "label": "Production Sharing Type Contracts [Policy Text Block]",
        "verboseLabel": "Production-Sharing Type Contracts"
       }
      }
     },
     "localname": "ProductionSharingTypeContractsPolicyTextBlock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "crc_PropertyPlantAndEquipmentGasProcessingPlantCapacity": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the capacity of gas processing plant.",
        "label": "Property, Plant and Equipment, Gas Processing Plant Capacity",
        "terseLabel": "Gas processing plant capacity"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentGasProcessingPlantCapacity",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "volumeItemType"
    },
    "crc_PropertyPlantAndEquipmentPowerPlantCapacity": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the capacity of power plant.",
        "label": "Property, Plant and Equipment, Power Plant Capacity",
        "terseLabel": "Power plant capacity"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentPowerPlantCapacity",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "powerItemType"
    },
    "crc_ProvedOilAndGasPropertiesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the proved oil and gas properties.",
        "label": "Proved Oil And Gas Properties [Member]",
        "terseLabel": "Proved oil and natural gas properties"
       }
      }
     },
     "localname": "ProvedOilAndGasPropertiesMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_PurchaseOfAssetsNet": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflows related to purchasing assets other than capital expenditures, including assets acquired as the result of a merger.",
        "label": "Purchase of Assets, Net",
        "negatedLabel": "Acquisitions",
        "terseLabel": "Acquisition cost"
       }
      }
     },
     "localname": "PurchaseOfAssetsNet",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_RedemptionPeriodExtended": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The option to extension additional period of redemption.",
        "label": "Redemption Period, Extended",
        "terseLabel": "Maximum extension period of redemption"
       }
      }
     },
     "localname": "RedemptionPeriodExtended",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_RedemptionPeriodOfFinancialInstruments": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Redemption period of financial instruments, including equity instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Redemption Period Of Financial Instruments",
        "terseLabel": "Redemption period"
       }
      }
     },
     "localname": "RedemptionPeriodOfFinancialInstruments",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_ReducedCommitmentInvestmentInJointVenture": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of reduction in committed amounts of initial investment.",
        "label": "Reduced Commitment investment in Joint Venture",
        "terseLabel": "Amended commitment amount"
       }
      }
     },
     "localname": "ReducedCommitmentInvestmentInJointVenture",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_SaleOfElectricityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This member represents electricity sales.",
        "label": "Sale Of Electricity [Member]",
        "terseLabel": "Electricity"
       }
      }
     },
     "localname": "SaleOfElectricityMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ScheduleofDeferredGainandIssuanceCostsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of Deferred Gain and Issuance Costs [Table Text Block]",
        "label": "Schedule of Deferred Gain and Issuance Costs [Table Text Block]",
        "terseLabel": "Schedule of Deferred Gain and Issuance Costs [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleofDeferredGainandIssuanceCostsTableTextBlock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "crc_ScheduleofShareBasedCompensationExpenseTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of Share Based Compensation Expense [Table Text Block]",
        "label": "Schedule of Share Based Compensation Expense [Table Text Block]",
        "terseLabel": "Schedule of Share Based Compensation Expense [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleofShareBasedCompensationExpenseTableTextBlock",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "crc_SecondHalfof2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Second Half of 2020 [Member]",
        "label": "Second Half of 2020 [Member]",
        "terseLabel": "Second Half of 2020"
       }
      }
     },
     "localname": "SecondHalfof2020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SecondQuarterProduction2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Second Quarter Production2020 [Member]",
        "label": "Second Quarter Production2020 [Member]",
        "terseLabel": "Q2 2020"
       }
      }
     },
     "localname": "SecondQuarterProduction2020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SecuredFirstLienSecondOutCreditAgreement2017Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents information pertaining to Secured First Lien Second Out Credit Agreement which is entered into by entity in 2017.",
        "label": "Secured First Lien Second Out Credit Agreement2017 [Member]",
        "terseLabel": "2017 Credit Agreement (Shared First Priority Lien)"
       }
      }
     },
     "localname": "SecuredFirstLienSecondOutCreditAgreement2017Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SecuredFirstLienSecondOutCreditAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents information pertaining to Secured First Lien Second Out Credit Agreement which is entered into by entity in 2016.",
        "label": "Secured First Lien Second Out Credit Agreement [Member]",
        "terseLabel": "2016 Credit Agreement (Shared First Priority Lien)"
       }
      }
     },
     "localname": "SecuredFirstLienSecondOutCreditAgreementMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SeniorNotes500PercentDue2020AndSeniorNotes550PercentDue2021Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the senior notes payable that bear an interest rate of 5.50 percent will mature in 2021 and 5 percent will mature in 2020.",
        "label": "Senior Notes500 Percent Due2020 And Senior Notes550 Percent Due2021 [Member]",
        "terseLabel": "5% Notes Due 2020 and 5.5% Notes Due 2021"
       }
      }
     },
     "localname": "SeniorNotes500PercentDue2020AndSeniorNotes550PercentDue2021Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SeniorNotes500PercentDue2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the senior notes payable that bear an interest rate of 5.00 percent and will mature in 2020.",
        "label": "Senior Notes500 Percent Due2020 [Member]",
        "terseLabel": "5% Notes Due 2020"
       }
      }
     },
     "localname": "SeniorNotes500PercentDue2020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SeniorNotes550PercentDue2021Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the senior notes payable that bear an interest rate of 5.50 percent and will mature in 2021.",
        "label": "Senior Notes550 Percent Due2021 [Member]",
        "terseLabel": "5.5% Notes Due 2021"
       }
      }
     },
     "localname": "SeniorNotes550PercentDue2021Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SeniorNotes600PercentDue2024Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the senior notes payable that bear an interest rate of 6.00 percent and will mature in 2024.",
        "label": "Senior Notes600 Percent Due2024 [Member]",
        "terseLabel": "6% Senior Notes due 2024"
       }
      }
     },
     "localname": "SeniorNotes600PercentDue2024Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SeniorNotes800PercentDue2022Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the senior notes payable that bear an interest rate of 8.00 percent and will mature in 2022.",
        "label": "Senior Notes800 Percent Due2022 [Member]",
        "terseLabel": "8% Notes Due 2022"
       }
      }
     },
     "localname": "SeniorNotes800PercentDue2022Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentageAnniversary": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of vesting of share-based compensation awards each anniversary date.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage, Anniversary",
        "terseLabel": "Vesting percentage on the day before each anniversary date follwoing date of grant"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingRightsPercentageAnniversary",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "crc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageGrantDateFairValue": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average grant-date fair value of non-vested options exercisable at the end of period.",
        "label": "Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Grant Date Fair Value",
        "terseLabel": "Exercisable, end of year, weighted-average grant date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageGrantDateFairValue",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "crc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedOptionsExpiredOrCanceledWeightedAverageGrantDateFairValue": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The weighted average grant-date fair value of options that expired or canceled during the period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Expired or Canceled, Weighted Average Grant Date Fair Value",
        "terseLabel": "Expired or Canceled weighted average, grant date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsNonvestedOptionsExpiredOrCanceledWeightedAverageGrantDateFairValue",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "crc_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValue": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average grant-date fair value of options outstanding.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Grant Date Fair Value",
        "periodEndLabel": "Ending balance, weighted-average grant date fair value (in dollars per share)",
        "periodStartLabel": "Beginning balance, weighted-average grant date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageGrantDateFairValue",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "crc_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssued": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of share instruments newly issued under a share-based compensation plan as of reporting date.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued",
        "terseLabel": "Common stock issued under employee stock purchase plan as of December 31, 2018 (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssued",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "crc_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedToDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of share instruments newly issued under a share-based compensation plan as of the reporting date.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued To Date",
        "terseLabel": "Number of shares issued under the plan"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedToDate",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "crc_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExercisedinPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercised in Period, Weighted Average Grant Date Fair Value",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercised in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Exercised, weighted average grant date fair value (in dollars per share)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExercisedinPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "crc_ShellTradingUSCompanyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Shell Trading (US) Company a major customer.",
        "label": "Shell Trading U S Company [Member]",
        "terseLabel": "Shell Trading U S Company"
       }
      }
     },
     "localname": "ShellTradingUSCompanyMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_StockSettledPerformanceStockUnitAwardsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock settled performance stock unit awards member",
        "label": "Stock Settled Performance Stock Unit Awards [Member]",
        "terseLabel": "Stock-Settled PSU awards"
       }
      }
     },
     "localname": "StockSettledPerformanceStockUnitAwardsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_StockSettledRestrictedStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents stock with shares for which sale is contractually or governmentally restricted for a given period of time, which are settled in shares at the time of vesting.",
        "label": "Stock Settled Restricted Stock [Member]",
        "terseLabel": "Stock-Settled Restricted Stock"
       }
      }
     },
     "localname": "StockSettledRestrictedStockMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SubsequentToYear2019Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Covenant period for after the year 2019.",
        "label": "Subsequent To Year2019 [Member]",
        "verboseLabel": "After 2019"
       }
      }
     },
     "localname": "SubsequentToYear2019Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_SupplementalRetirementPlanSupplementalRetirementPlanAccruedLiabilities": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents the accrued liabilities for supplemental retirement benefit plan which provides restoration of benefit lost due to government limitations on qualified retirement benefits.",
        "label": "Supplemental Retirement Plan, Supplemental Retirement Plan Accrued Liabilities",
        "terseLabel": "Other long-term liabilities for the supplemental retirement plan"
       }
      }
     },
     "localname": "SupplementalRetirementPlanSupplementalRetirementPlanAccruedLiabilities",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedContributionPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_TermLoan2014CreditAgreementMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the term loan under the 2014 Credit Agreement.",
        "label": "Term Loan2014 Credit Agreement [Member]",
        "terseLabel": "2014 Term Loan"
       }
      }
     },
     "localname": "TermLoan2014CreditAgreementMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_TermLoanMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Term loan member",
        "label": "Term Loan [Member]",
        "terseLabel": "Term Loan"
       }
      }
     },
     "localname": "TermLoanMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_TermOfPaymentAfterInvoicingForContractsWithCustomers": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Term of payment following invoicing for contracts with customers, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.",
        "label": "Term of Payment after Invoicing for Contracts with Customers",
        "terseLabel": "Typical term of payment following invoicing"
       }
      }
     },
     "localname": "TermOfPaymentAfterInvoicingForContractsWithCustomers",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionCommoditySalesContractsAndMarketingDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_ThirdQuarterProduction2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Third Quarter Production 2020 [Member]",
        "label": "Third Quarter Production 2020 [Member]",
        "terseLabel": "Q3 2020"
       }
      }
     },
     "localname": "ThirdQuarterProduction2020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_TimePeriodForExpensingCostsOfExploratoryWellsIfDeterminationOfProvedReservesNotMade": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element describes the maximum time period after which costs of exploratory wells are charged to expense if a determination of proved reserves has not been made.",
        "label": "Time Period for Expensing Costs of Exploratory Wells if Determination of Proved Reserves Not Made",
        "verboseLabel": "Maximum time period after which costs of exploratory wells are charged to expense if determination of proved reserves has not been made"
       }
      }
     },
     "localname": "TimePeriodForExpensingCostsOfExploratoryWellsIfDeterminationOfProvedReservesNotMade",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_TotalInvestmentCommitmentInJointVentureMaximum": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the total maximum investment commitment in the joint venture.",
        "label": "Total Investment Commitment in Joint Venture, Maximum",
        "terseLabel": "Total Investment Commitment in Joint Venture, Maximum",
        "verboseLabel": "Maximum commitment contribution"
       }
      }
     },
     "localname": "TotalInvestmentCommitmentInJointVentureMaximum",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_TotalInvestmentCommitmentinJointVentureFundedtoDate": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total Investment Commitment in Joint Venture, Funded to Date",
        "label": "Total Investment Commitment in Joint Venture, Funded to Date",
        "terseLabel": "Commitment contributed"
       }
      }
     },
     "localname": "TotalInvestmentCommitmentinJointVentureFundedtoDate",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesBspDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_TotalLeaseLiability": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total Lease Liability",
        "label": "Total Lease Liability",
        "totalLabel": "Total lease liabilities"
       }
      }
     },
     "localname": "TotalLeaseLiability",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "crc_TrancheOneMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tranche One [Member]",
        "label": "Tranche One [Member]",
        "terseLabel": "Tranche One"
       }
      }
     },
     "localname": "TrancheOneMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_TrancheTerm": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tranche, Term",
        "label": "Tranche, Term",
        "terseLabel": "Term of tranche"
       }
      }
     },
     "localname": "TrancheTerm",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "crc_TrancheTwoMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tranche Two [Member]",
        "label": "Tranche Two [Member]",
        "terseLabel": "Tranche Two"
       }
      }
     },
     "localname": "TrancheTwoMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_UnionEmployeesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Union employees member",
        "label": "Union Employees [Member]",
        "terseLabel": "Union employees"
       }
      }
     },
     "localname": "UnionEmployeesMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_UnprovedOilAndGasPropertiesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the unproved oil and gas properties.",
        "label": "Unproved Oil And Gas Properties [Member]",
        "terseLabel": "Unproved oil and natural gas properties(a)"
       }
      }
     },
     "localname": "UnprovedOilAndGasPropertiesMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_UsEquityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents U.S. equity information.",
        "label": "Us Equity [Member]",
        "terseLabel": "U.S. equity"
       }
      }
     },
     "localname": "UsEquityMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ValeroMarketingSupplyCompanyMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents Valero Marketing &amp; Supply Company, a major customer.",
        "label": "Valero Marketing Supply Company [Member]",
        "terseLabel": "Valero Marketing Supply Company"
       }
      }
     },
     "localname": "ValeroMarketingSupplyCompanyMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_ValueFundsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents those funds to focus on safety rather than growth, and often choose investments providing dividends as well as capital appreciation.",
        "label": "Value Funds [Member]",
        "terseLabel": "Value funds"
       }
      }
     },
     "localname": "ValueFundsMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_WorkingSurfaceAndMineralInterestsInElkHillsFieldMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the working, surface and mineral interests in the Elk Hills field.",
        "label": "Working Surface And Mineral Interests In Elk Hills Field [Member]",
        "terseLabel": "Working, surface and mineral interests in the formerly Elk Hills field"
       }
      }
     },
     "localname": "WorkingSurfaceAndMineralInterestsInElkHillsFieldMember",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_Year2019Through2020Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This member stands for Year 2019 Through 2020.",
        "label": "Year2019 Through2020 [Member]",
        "terseLabel": "2019 Through 2020"
       }
      }
     },
     "localname": "Year2019Through2020Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_Year2019Through2021Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This member stands for year 2019 through 2021.",
        "label": "Year2019 Through2021 [Member]",
        "terseLabel": "Year2019 Through2021"
       }
      }
     },
     "localname": "Year2019Through2021Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "crc_Year2021Member": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Year 2021 [Member]",
        "label": "Year 2021 [Member]",
        "terseLabel": "Year 2021"
       }
      }
     },
     "localname": "Year2021Member",
     "nsuri": "http://www.oxy.com/20191231",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_AmendmentFlag": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.",
        "label": "Amendment Flag",
        "terseLabel": "Amendment Flag"
       }
      }
     },
     "localname": "AmendmentFlag",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_CityAreaCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Area code of city",
        "label": "City Area Code",
        "terseLabel": "City Area Code"
       }
      }
     },
     "localname": "CityAreaCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_CoverAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cover page.",
        "label": "Cover page."
       }
      }
     },
     "localname": "CoverAbstract",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "dei_CurrentFiscalYearEndDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "End date of current fiscal year in the format --MM-DD.",
        "label": "Current Fiscal Year End Date",
        "terseLabel": "Current Fiscal Year End Date"
       }
      }
     },
     "localname": "CurrentFiscalYearEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "gMonthDayItemType"
    },
    "dei_DocumentAnnualReport": {
     "auth_ref": [
      "r570"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as an annual report.",
        "label": "Document Annual Report",
        "terseLabel": "Document Annual Report"
       }
      }
     },
     "localname": "DocumentAnnualReport",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentFiscalPeriodFocus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fiscal period values are FY, Q1, Q2, and Q3.  1st, 2nd and 3rd quarter 10-Q or 10-QT statements have value Q1, Q2, and Q3 respectively, with 10-K, 10-KT or other fiscal year statements having FY.",
        "label": "Document Fiscal Period Focus",
        "terseLabel": "Document Fiscal Period Focus"
       }
      }
     },
     "localname": "DocumentFiscalPeriodFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "fiscalPeriodItemType"
    },
    "dei_DocumentFiscalYearFocus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This is focus fiscal year of the document report in CCYY format. For a 2006 annual report, which may also provide financial information from prior periods, fiscal 2006 should be given as the fiscal year focus. Example: 2006.",
        "label": "Document Fiscal Year Focus",
        "terseLabel": "Document Fiscal Year Focus"
       }
      }
     },
     "localname": "DocumentFiscalYearFocus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "gYearItemType"
    },
    "dei_DocumentPeriodEndDate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The end date of the period reflected on the cover page if a periodic report. For all other reports and registration statements containing historical data, it is the date up through which that historical data is presented.  If there is no historical data in the report, use the filing date. The format of the date is CCYY-MM-DD.",
        "label": "Document Period End Date",
        "terseLabel": "Document Period End Date"
       }
      }
     },
     "localname": "DocumentPeriodEndDate",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "dateItemType"
    },
    "dei_DocumentTransitionReport": {
     "auth_ref": [
      "r569"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true only for a form used as a transition report.",
        "label": "Document Transition Report",
        "terseLabel": "Document Transition Report"
       }
      }
     },
     "localname": "DocumentTransitionReport",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_DocumentType": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.",
        "label": "Document Type",
        "terseLabel": "Document Type"
       }
      }
     },
     "localname": "DocumentType",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "submissionTypeItemType"
    },
    "dei_DocumentsIncorporatedByReferenceTextBlock": {
     "auth_ref": [
      "r567"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Documents incorporated by reference.",
        "label": "Documents Incorporated by Reference [Text Block]",
        "terseLabel": "Documents Incorporated by Reference"
       }
      }
     },
     "localname": "DocumentsIncorporatedByReferenceTextBlock",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "textBlockItemType"
    },
    "dei_EntityAddressAddressLine1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 1 such as Attn, Building Name, Street Name",
        "label": "Entity Address, Address Line One",
        "terseLabel": "Entity Address, Address Line One"
       }
      }
     },
     "localname": "EntityAddressAddressLine1",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressAddressLine2": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Address Line 2 such as Street or Suite number",
        "label": "Entity Address, Address Line Two",
        "terseLabel": "Entity Address, Address Line Two"
       }
      }
     },
     "localname": "EntityAddressAddressLine2",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressCityOrTown": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the City or Town",
        "label": "Entity Address, City or Town",
        "terseLabel": "Entity Address, City or Town"
       }
      }
     },
     "localname": "EntityAddressCityOrTown",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressPostalZipCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Code for the postal or zip code",
        "label": "Entity Address, Postal Zip Code",
        "terseLabel": "Entity Address, Postal Zip Code"
       }
      }
     },
     "localname": "EntityAddressPostalZipCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityAddressStateOrProvince": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the state or province.",
        "label": "Entity Address, State or Province",
        "terseLabel": "Entity Address, State or Province"
       }
      }
     },
     "localname": "EntityAddressStateOrProvince",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "stateOrProvinceItemType"
    },
    "dei_EntityCentralIndexKey": {
     "auth_ref": [
      "r571"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.",
        "label": "Entity Central Index Key",
        "terseLabel": "Entity Central Index Key"
       }
      }
     },
     "localname": "EntityCentralIndexKey",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "centralIndexKeyItemType"
    },
    "dei_EntityCommonStockSharesOutstanding": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate number of shares or other units outstanding of each of registrant's classes of capital or common stock or other ownership interests, if and as stated on cover of related periodic report. Where multiple classes or units exist define each class/interest by adding class of stock items such as Common Class A [Member], Common Class B [Member] or Partnership Interest [Member] onto the Instrument [Domain] of the Entity Listings, Instrument.",
        "label": "Entity Common Stock, Shares Outstanding",
        "terseLabel": "Entity Common Stock, Shares Outstanding"
       }
      }
     },
     "localname": "EntityCommonStockSharesOutstanding",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "sharesItemType"
    },
    "dei_EntityCurrentReportingStatus": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' whether registrants (1) have filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that registrants were required to file such reports), and (2) have been subject to such filing requirements for the past 90 days. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Current Reporting Status",
        "terseLabel": "Entity Current Reporting Status"
       }
      }
     },
     "localname": "EntityCurrentReportingStatus",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains.",
        "label": "Entity [Domain]",
        "terseLabel": "Entity [Domain]"
       }
      }
     },
     "localname": "EntityDomain",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "dei_EntityEmergingGrowthCompany": {
     "auth_ref": [
      "r571"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate if registrant meets the emerging growth company criteria.",
        "label": "Entity Emerging Growth Company",
        "terseLabel": "Entity Emerging Growth Company"
       }
      }
     },
     "localname": "EntityEmergingGrowthCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityFileNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.",
        "label": "Entity File Number",
        "terseLabel": "Entity File Number"
       }
      }
     },
     "localname": "EntityFileNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "fileNumberItemType"
    },
    "dei_EntityFilerCategory": {
     "auth_ref": [
      "r571"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate whether the registrant is one of the following: Large Accelerated Filer, Accelerated Filer, Non-accelerated Filer. Definitions of these categories are stated in Rule 12b-2 of the Exchange Act. This information should be based on the registrant's current or most recent filing containing the related disclosure.",
        "label": "Entity Filer Category",
        "terseLabel": "Entity Filer Category"
       }
      }
     },
     "localname": "EntityFilerCategory",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "filerCategoryItemType"
    },
    "dei_EntityIncorporationStateCountryCode": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Two-character EDGAR code representing the state or country of incorporation.",
        "label": "Entity Incorporation, State or Country Code",
        "terseLabel": "Entity Incorporation, State or Country Code"
       }
      }
     },
     "localname": "EntityIncorporationStateCountryCode",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "edgarStateCountryItemType"
    },
    "dei_EntityInteractiveDataCurrent": {
     "auth_ref": [
      "r575"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).",
        "label": "Entity Interactive Data Current",
        "terseLabel": "Entity Interactive Data Current"
       }
      }
     },
     "localname": "EntityInteractiveDataCurrent",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityPublicFloat": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate market value of the voting and non-voting common equity held by non-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant's most recently completed second fiscal quarter.",
        "label": "Entity Public Float",
        "terseLabel": "Entity Public Float"
       }
      }
     },
     "localname": "EntityPublicFloat",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "monetaryItemType"
    },
    "dei_EntityRegistrantName": {
     "auth_ref": [
      "r571"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.",
        "label": "Entity Registrant Name",
        "terseLabel": "Entity Registrant Name"
       }
      }
     },
     "localname": "EntityRegistrantName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_EntityShellCompany": {
     "auth_ref": [
      "r571"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Boolean flag that is true when the registrant is a shell company as defined in Rule 12b-2 of the Exchange Act.",
        "label": "Entity Shell Company",
        "terseLabel": "Entity Shell Company"
       }
      }
     },
     "localname": "EntityShellCompany",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntitySmallBusiness": {
     "auth_ref": [
      "r571"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicates that the company is a Smaller Reporting Company (SRC).",
        "label": "Entity Small Business",
        "terseLabel": "Entity Small Business"
       }
      }
     },
     "localname": "EntitySmallBusiness",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "booleanItemType"
    },
    "dei_EntityTaxIdentificationNumber": {
     "auth_ref": [
      "r571"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.",
        "label": "Entity Tax Identification Number",
        "terseLabel": "Entity Tax Identification Number"
       }
      }
     },
     "localname": "EntityTaxIdentificationNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "employerIdItemType"
    },
    "dei_EntityVoluntaryFilers": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.",
        "label": "Entity Voluntary Filers",
        "terseLabel": "Entity Voluntary Filers"
       }
      }
     },
     "localname": "EntityVoluntaryFilers",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_EntityWellKnownSeasonedIssuer": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicate 'Yes' or 'No' if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Is used on Form Type: 10-K, 10-Q, 8-K, 20-F, 6-K, 10-K/A, 10-Q/A, 20-F/A, 6-K/A, N-CSR, N-Q, N-1A.",
        "label": "Entity Well-known Seasoned Issuer",
        "terseLabel": "Entity Well-known Seasoned Issuer"
       }
      }
     },
     "localname": "EntityWellKnownSeasonedIssuer",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "yesNoItemType"
    },
    "dei_LegalEntityAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The set of legal entities associated with a report.",
        "label": "Legal Entity [Axis]",
        "terseLabel": "Legal Entity [Axis]"
       }
      }
     },
     "localname": "LegalEntityAxis",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "dei_LocalPhoneNumber": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Local phone number for entity.",
        "label": "Local Phone Number",
        "terseLabel": "Local Phone Number"
       }
      }
     },
     "localname": "LocalPhoneNumber",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "normalizedStringItemType"
    },
    "dei_Security12bTitle": {
     "auth_ref": [
      "r566"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Title of a 12(b) registered security.",
        "label": "Title of 12(b) Security",
        "terseLabel": "Title of 12(b) Security"
       }
      }
     },
     "localname": "Security12bTitle",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "securityTitleItemType"
    },
    "dei_SecurityExchangeName": {
     "auth_ref": [
      "r568"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the Exchange on which a security is registered.",
        "label": "Security Exchange Name",
        "terseLabel": "Security Exchange Name"
       }
      }
     },
     "localname": "SecurityExchangeName",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "edgarExchangeCodeItemType"
    },
    "dei_TradingSymbol": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Trading symbol of an instrument as listed on an exchange.",
        "label": "Trading Symbol",
        "terseLabel": "Trading Symbol"
       }
      }
     },
     "localname": "TradingSymbol",
     "nsuri": "http://xbrl.sec.gov/dei/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CoverPage"
     ],
     "xbrltype": "tradingSymbolItemType"
    },
    "srt_CondensedBalanceSheetStatementTable": {
     "auth_ref": [
      "r132",
      "r391",
      "r579"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about condensed balance sheet, including, but not limited to, balance sheets of consolidated entities and consolidation eliminations.",
        "label": "Condensed Balance Sheet Statement [Table]",
        "terseLabel": "Condensed Balance Sheet Statement [Table]"
       }
      }
     },
     "localname": "CondensedBalanceSheetStatementTable",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_CondensedBalanceSheetStatementsCaptionsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Condensed Balance Sheet Statements, Captions [Line Items]",
        "terseLabel": "Condensed Balance Sheet Statements, Captions [Line Items]"
       }
      }
     },
     "localname": "CondensedBalanceSheetStatementsCaptionsLineItems",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_CondensedCashFlowStatementTable": {
     "auth_ref": [
      "r132",
      "r391",
      "r580"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about condensed cash flow statement, including, but not limited to, cash flow statements of consolidated entities and consolidation eliminations.",
        "label": "Condensed Cash Flow Statement [Table]",
        "terseLabel": "Condensed Cash Flow Statement [Table]"
       }
      }
     },
     "localname": "CondensedCashFlowStatementTable",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_CondensedCashFlowStatementsCaptionsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Condensed Cash Flow Statements, Captions [Line Items]",
        "terseLabel": "Condensed Cash Flow Statements, Captions [Line Items]"
       }
      }
     },
     "localname": "CondensedCashFlowStatementsCaptionsLineItems",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Condensed Financial Information Disclosure [Abstract]"
       }
      }
     },
     "localname": "CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "srt_CondensedIncomeStatementTable": {
     "auth_ref": [
      "r132",
      "r391",
      "r580"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about condensed income statement including, but not limited to, income statements of consolidated entities and consolidation eliminations.",
        "label": "Condensed Income Statement [Table]",
        "terseLabel": "Condensed Income Statement [Table]"
       }
      }
     },
     "localname": "CondensedIncomeStatementTable",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_CondensedIncomeStatementsCaptionsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Condensed Income Statements, Captions [Line Items]",
        "terseLabel": "Condensed Income Statements, Captions [Line Items]"
       }
      }
     },
     "localname": "CondensedIncomeStatementsCaptionsLineItems",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidatedEntitiesAxis": {
     "auth_ref": [
      "r565",
      "r577"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by consolidated entity or group of entities.",
        "label": "Consolidated Entities [Axis]",
        "terseLabel": "Consolidated Entities [Axis]"
       }
      }
     },
     "localname": "ConsolidatedEntitiesAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidatedEntitiesDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Entity or group of entities consolidated into reporting entity.",
        "label": "Consolidated Entities [Domain]",
        "terseLabel": "Consolidated Entities [Domain]"
       }
      }
     },
     "localname": "ConsolidatedEntitiesDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ConsolidationItemsAxis": {
     "auth_ref": [
      "r168",
      "r174"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by components, eliminations, non-segment corporate-level activity and reconciling items used in consolidating a parent entity and its subsidiaries or its operating segments.",
        "label": "Consolidation Items [Axis]",
        "terseLabel": "Consolidation Items [Axis]"
       }
      }
     },
     "localname": "ConsolidationItemsAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ConsolidationItemsDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Components, elimination, non-segment corporate-level activity and reconciling items used in consolidating a parent entity and its subsidiaries or its operating segments.",
        "label": "Consolidation Items [Domain]",
        "terseLabel": "Consolidation Items [Domain]"
       }
      }
     },
     "localname": "ConsolidationItemsDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ContractualObligationFiscalYearMaturityScheduleTableTextBlock": {
     "auth_ref": [
      "r574"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation.",
        "label": "Contractual Obligation, Fiscal Year Maturity [Table Text Block]",
        "terseLabel": "Schedule of purchase obligations on a discounted basis"
       }
      }
     },
     "localname": "ContractualObligationFiscalYearMaturityScheduleTableTextBlock",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "srt_CounterpartyNameAxis": {
     "auth_ref": [
      "r62",
      "r123",
      "r584"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by name of counterparty. A counterparty is the other party that participates in a financial transaction. Examples include, but not limited to, the name of the financial institution.",
        "label": "Counterparty Name [Axis]",
        "terseLabel": "Counterparty Name [Axis]"
       }
      }
     },
     "localname": "CounterpartyNameAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_CrudeOilMember": {
     "auth_ref": [
      "r572",
      "r573"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unrefined, unprocessed oil, which may be used in a variety of applications, and from which, petroleum-based products are produced.",
        "label": "Crude Oil [Member]",
        "terseLabel": "Crude Oil"
       }
      }
     },
     "localname": "CrudeOilMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_GuarantorSubsidiariesMember": {
     "auth_ref": [
      "r219",
      "r581"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Entity owned or controlled by another entity which has guaranteed the issue of securities by another subsidiary of the parent or has guaranteed the issue of securities by the parent.",
        "label": "Guarantor Subsidiaries [Member]",
        "terseLabel": "Combined Guarantor Subsidiaries"
       }
      }
     },
     "localname": "GuarantorSubsidiariesMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MajorCustomersAxis": {
     "auth_ref": [
      "r178",
      "r248",
      "r252",
      "r550"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by name or description of a single external customer or a group of external customers.",
        "label": "Customer [Axis]",
        "terseLabel": "Customer [Axis]"
       }
      }
     },
     "localname": "MajorCustomersAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ManagementMember": {
     "auth_ref": [
      "r179",
      "r479"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Person or persons designated as part of management.",
        "label": "Management [Member]",
        "terseLabel": "Certain executives"
       }
      }
     },
     "localname": "ManagementMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MaximumMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Upper limit of the provided range.",
        "label": "Maximum [Member]",
        "terseLabel": "Maximum"
       }
      }
     },
     "localname": "MaximumMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_MinimumMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Lower limit of the provided range.",
        "label": "Minimum [Member]",
        "terseLabel": "Minimum"
       }
      }
     },
     "localname": "MinimumMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_NameOfMajorCustomerDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Single external customer or group of external customers.",
        "label": "Customer [Domain]",
        "terseLabel": "Customer [Domain]"
       }
      }
     },
     "localname": "NameOfMajorCustomerDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_NonGuarantorSubsidiariesMember": {
     "auth_ref": [
      "r220",
      "r582"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Entity owned or controlled by another entity which has not guaranteed the issue of securities by another subsidiary of the parent or has not guaranteed the issue of securities by the parent.",
        "label": "Non-Guarantor Subsidiaries [Member]",
        "terseLabel": "Combined Non-Guarantor Subsidiaries"
       }
      }
     },
     "localname": "NonGuarantorSubsidiariesMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_OwnershipAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by name of entity in which ownership interest is disclosed. Excludes equity method investee and named security investment.",
        "label": "Ownership [Axis]",
        "terseLabel": "Ownership [Axis]"
       }
      }
     },
     "localname": "OwnershipAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_OwnershipDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of entity in which ownership interest is disclosed. Excludes equity method investee and named security investment.",
        "label": "Ownership [Domain]",
        "terseLabel": "Ownership [Domain]"
       }
      }
     },
     "localname": "OwnershipDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ProductOrServiceAxis": {
     "auth_ref": [
      "r176",
      "r248",
      "r250",
      "r547",
      "r548"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by product and service, or group of similar products and similar services.",
        "label": "Product and Service [Axis]",
        "terseLabel": "Product and Service [Axis]"
       }
      }
     },
     "localname": "ProductOrServiceAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_ProductsAndServicesDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Product or service, or a group of similar products or similar services.",
        "label": "Product and Service [Domain]",
        "terseLabel": "Product and Service [Domain]"
       }
      }
     },
     "localname": "ProductsAndServicesDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RangeAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.",
        "label": "Statistical Measurement [Axis]",
        "terseLabel": "Statistical Measurement [Axis]"
       }
      }
     },
     "localname": "RangeAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_RangeMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Statistical measurement. Includes, but is not limited to, minimum, maximum, weighted average, arithmetic average, and median.",
        "label": "Statistical Measurement [Domain]",
        "terseLabel": "Statistical Measurement [Domain]"
       }
      }
     },
     "localname": "RangeMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ReportableLegalEntitiesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Legal entities of the consolidated entity reporting separate financial information in the entity's financial statements.",
        "label": "Reportable Legal Entities [Member]",
        "terseLabel": "Reportable Legal Entities"
       }
      }
     },
     "localname": "ReportableLegalEntitiesMember",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_RepurchaseAgreementCounterpartyNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Named other party that participates in a financial transaction. Examples include, but not limited to, the name of the financial institution.",
        "label": "Counterparty Name [Domain]",
        "terseLabel": "Counterparty Name [Domain]"
       }
      }
     },
     "localname": "RepurchaseAgreementCounterpartyNameDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScenarioUnspecifiedDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Scenario reported, distinguishing information from actual fact. Includes, but is not limited to, pro forma and forecast. Excludes actual facts.",
        "label": "Scenario [Domain]",
        "terseLabel": "Scenario [Domain]"
       }
      }
     },
     "localname": "ScenarioUnspecifiedDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_ScheduleOfCondensedBalanceSheetTableTextBlock": {
     "auth_ref": [
      "r583"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of condensed balance sheet, including, but not limited to, balance sheets of consolidated entities and consolidation eliminations.",
        "label": "Condensed Balance Sheet [Table Text Block]",
        "terseLabel": "Schedule of condensed balance sheet"
       }
      }
     },
     "localname": "ScheduleOfCondensedBalanceSheetTableTextBlock",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "srt_ScheduleOfCondensedCashFlowStatementTableTextBlock": {
     "auth_ref": [
      "r583"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of condensed cash flow statement, including, but not limited to, cash flow statements of consolidated entities and consolidation eliminations.",
        "label": "Condensed Cash Flow Statement [Table Text Block]",
        "terseLabel": "Schedule of condensed cash flow statement"
       }
      }
     },
     "localname": "ScheduleOfCondensedCashFlowStatementTableTextBlock",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "srt_ScheduleOfCondensedIncomeStatementTableTextBlock": {
     "auth_ref": [
      "r583"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of condensed income statement, including, but not limited to, income statements of consolidated entities and consolidation eliminations.",
        "label": "Condensed Income Statement [Table Text Block]",
        "terseLabel": "Schedule of condensed income statement"
       }
      }
     },
     "localname": "ScheduleOfCondensedIncomeStatementTableTextBlock",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "srt_SegmentGeographicalDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Geographical area.",
        "label": "Geographical [Domain]",
        "terseLabel": "Geographical [Domain]"
       }
      }
     },
     "localname": "SegmentGeographicalDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "srt_StatementGeographicalAxis": {
     "auth_ref": [
      "r177",
      "r248",
      "r251",
      "r549",
      "r560",
      "r564",
      "r576",
      "r578"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by geographical components.",
        "label": "Geographical [Axis]",
        "terseLabel": "Geographical [Axis]"
       }
      }
     },
     "localname": "StatementGeographicalAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_StatementScenarioAxis": {
     "auth_ref": [
      "r214",
      "r486"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by scenario reported, distinguishing information from actual fact. Includes, but is not limited to, pro forma and forecast. Excludes actual facts.",
        "label": "Scenario [Axis]",
        "terseLabel": "Scenario [Axis]"
       }
      }
     },
     "localname": "StatementScenarioAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_TitleOfIndividualAxis": {
     "auth_ref": [
      "r179",
      "r479"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by title of individual or nature of relationship to individual or group of individuals.",
        "label": "Title of Individual [Axis]",
        "terseLabel": "Title of Individual [Axis]"
       }
      }
     },
     "localname": "TitleOfIndividualAxis",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "srt_TitleOfIndividualWithRelationshipToEntityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Title of individual, or nature of relationship to individual or group of individuals.",
        "label": "Title of Individual [Domain]",
        "terseLabel": "Title of Individual [Domain]"
       }
      }
     },
     "localname": "TitleOfIndividualWithRelationshipToEntityDomain",
     "nsuri": "http://fasb.org/srt/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "stpr_CA": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "CALIFORNIA",
        "terseLabel": "CALIFORNIA"
       }
      }
     },
     "localname": "CA",
     "nsuri": "http://xbrl.sec.gov/stpr/2018-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountingChangesAndErrorCorrectionsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Accounting Changes and Error Corrections [Abstract]"
       }
      }
     },
     "localname": "AccountingChangesAndErrorCorrectionsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccountingStandardsUpdate201602Member": {
     "auth_ref": [
      "r460"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accounting Standards Update 2016-02 Leases (Topic 842).",
        "label": "Accounting Standards Update 2016-02 [Member]",
        "terseLabel": "Accounting Standards Update 2016-02"
       }
      }
     },
     "localname": "AccountingStandardsUpdate201602Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AccountingAndDisclosureChangesRecentlyAdoptedAccountingDisclosureChangesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccountsPayableCurrent": {
     "auth_ref": [
      "r41"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accounts Payable, Current",
        "terseLabel": "Accounts payable"
       }
      }
     },
     "localname": "AccountsPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccountsReceivableNetCurrent": {
     "auth_ref": [
      "r1",
      "r25",
      "r180",
      "r181",
      "r249"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.",
        "label": "Accounts Receivable, after Allowance for Credit Loss, Current",
        "terseLabel": "Trade receivables"
       }
      }
     },
     "localname": "AccountsReceivableNetCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccrualForTaxesOtherThanIncomeTaxesCurrent": {
     "auth_ref": [
      "r7",
      "r43",
      "r344"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_AccruedLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accrual for Taxes Other than Income Taxes, Current",
        "terseLabel": "Accrued taxes other than on income"
       }
      }
     },
     "localname": "AccrualForTaxesOtherThanIncomeTaxesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccruedLiabilitiesCurrent": {
     "auth_ref": [
      "r43"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_LiabilitiesCurrent",
       "weight": 1.0
      },
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Accrued Liabilities, Current",
        "terseLabel": "Accrued liabilities",
        "totalLabel": "Accrued liabilities"
       }
      }
     },
     "localname": "AccruedLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccruedLiabilitiesCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Accrued Liabilities, Current [Abstract]",
        "terseLabel": "Accrued liabilities current [abstract]"
       }
      }
     },
     "localname": "AccruedLiabilitiesCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccruedLiabilitiesMember": {
     "auth_ref": [
      "r43"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This item represents obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered.",
        "label": "Accrued Liabilities [Member]",
        "terseLabel": "Accrued liabilities"
       }
      }
     },
     "localname": "AccruedLiabilitiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment": {
     "auth_ref": [
      "r39",
      "r192"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_PropertyPlantAndEquipmentNet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.",
        "label": "Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment",
        "negatedLabel": "Accumulated depreciation, depletion and amortization"
       }
      }
     },
     "localname": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax": {
     "auth_ref": [
      "r67",
      "r72"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).",
        "label": "Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax",
        "negatedTerseLabel": "Amounts recognized in accumulated other comprehensive (loss) income:",
        "terseLabel": "Pension and post-retirement adjustments"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax": {
     "auth_ref": [
      "r69",
      "r71",
      "r72"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.",
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax",
        "terseLabel": "Accumulated other comprehensive loss"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]",
        "terseLabel": "Accumulated Other Comprehensive Income (Loss)"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeLossNetOfTaxAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AccumulatedOtherComprehensiveIncomeMember": {
     "auth_ref": [
      "r68",
      "r72",
      "r73",
      "r402"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Accumulated increase (decrease) in equity from transactions and other events and circumstances from non-owner sources, attributable to the parent. Excludes net income (loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners.",
        "label": "AOCI Attributable to Parent [Member]",
        "terseLabel": "Accumulated Other Comprehensive (Loss) Income"
       }
      }
     },
     "localname": "AccumulatedOtherComprehensiveIncomeMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdditionalPaidInCapitalCommonStock": {
     "auth_ref": [
      "r26"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value received from shareholders in common stock-related transactions that are in excess of par value or stated value and amounts received from other stock-related transactions. Includes only common stock transactions (excludes preferred stock transactions). May be called contributed capital, capital in excess of par, capital surplus, or paid-in capital.",
        "label": "Additional Paid in Capital, Common Stock",
        "terseLabel": "Additional paid-in capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdditionalPaidInCapitalMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders.",
        "label": "Additional Paid-in Capital [Member]",
        "terseLabel": "Additional Paid-in Capital"
       }
      }
     },
     "localname": "AdditionalPaidInCapitalMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AdjustmentsForNewAccountingPronouncementsAxis": {
     "auth_ref": [
      "r136"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by new accounting pronouncement.",
        "label": "Adjustments for New Accounting Pronouncements [Axis]",
        "terseLabel": "Adjustments for New Accounting Pronouncements [Axis]"
       }
      }
     },
     "localname": "AdjustmentsForNewAccountingPronouncementsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AccountingAndDisclosureChangesRecentlyAdoptedAccountingDisclosureChangesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "Adjustments to reconcile net income (loss) to net cash provided by operating activities:"
       }
      }
     },
     "localname": "AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue": {
     "auth_ref": [
      "r305",
      "r307",
      "r341",
      "r342"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.",
        "label": "APIC, Share-based Payment Arrangement, Increase for Cost Recognition",
        "terseLabel": "Share-based compensation, net"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued": {
     "auth_ref": [
      "r221",
      "r234",
      "r239"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants.",
        "label": "Adjustments to Additional Paid in Capital, Warrant Issued",
        "terseLabel": "Warrant"
       }
      }
     },
     "localname": "AdjustmentsToAdditionalPaidInCapitalWarrantIssued",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AllocatedShareBasedCompensationExpense": {
     "auth_ref": [
      "r307",
      "r335",
      "r340"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.",
        "label": "Share-based Payment Arrangement, Expense",
        "terseLabel": "Total stock-based compensation expense"
       }
      }
     },
     "localname": "AllocatedShareBasedCompensationExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount": {
     "auth_ref": [
      "r148"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.",
        "label": "Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount",
        "terseLabel": "Weighted-average antidilutive shares"
       }
      }
     },
     "localname": "AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_AreaOfLand": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Area of land held.",
        "label": "Area of Land",
        "terseLabel": "Working, surface and mineral interests acquired"
       }
      }
     },
     "localname": "AreaOfLand",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails"
     ],
     "xbrltype": "areaItemType"
    },
    "us-gaap_ArrangementsAndNonarrangementTransactionsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.",
        "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Domain]",
        "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative [Domain]"
       }
      }
     },
     "localname": "ArrangementsAndNonarrangementTransactionsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_AssetImpairmentChargesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Asset Impairment Charges [Abstract]",
        "terseLabel": "Asset Impairments"
       }
      }
     },
     "localname": "AssetImpairmentChargesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetRetirementObligation": {
     "auth_ref": [
      "r199"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.",
        "label": "Asset Retirement Obligation",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance"
       }
      }
     },
     "localname": "AssetRetirementObligation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Asset Retirement Obligation [Abstract]",
        "verboseLabel": "Asset Retirement Obligations"
       }
      }
     },
     "localname": "AssetRetirementObligationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetRetirementObligationAccretionExpense": {
     "auth_ref": [
      "r198",
      "r202"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.",
        "label": "Asset Retirement Obligation, Accretion Expense",
        "terseLabel": "Accretion expense"
       }
      }
     },
     "localname": "AssetRetirementObligationAccretionExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationCurrent": {
     "auth_ref": [
      "r199"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_AccruedLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.",
        "label": "Asset Retirement Obligation, Current",
        "terseLabel": "Asset retirement obligation"
       }
      }
     },
     "localname": "AssetRetirementObligationCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationLiabilitiesIncurred": {
     "auth_ref": [
      "r200"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of asset retirement obligations incurred during the period.",
        "label": "Asset Retirement Obligation, Liabilities Incurred",
        "terseLabel": "Liabilities incurred, capitalized to PP&amp;E"
       }
      }
     },
     "localname": "AssetRetirementObligationLiabilitiesIncurred",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationLiabilitiesSettled": {
     "auth_ref": [
      "r201"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of asset retirement obligations settled, or otherwise disposed of, during the period. This may include asset retirement obligations transferred to third parties associated with the sale of a long-lived asset.",
        "label": "Asset Retirement Obligation, Liabilities Settled",
        "negatedLabel": "Liabilities settled and paid"
       }
      }
     },
     "localname": "AssetRetirementObligationLiabilitiesSettled",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationRevisionOfEstimate": {
     "auth_ref": [
      "r197",
      "r203"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.",
        "label": "Asset Retirement Obligation, Revision of Estimate",
        "terseLabel": "Revisions"
       }
      }
     },
     "localname": "AssetRetirementObligationRevisionOfEstimate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationRollForwardAnalysisRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]",
        "terseLabel": "Asset Retirement Obligations Roll forward"
       }
      }
     },
     "localname": "AssetRetirementObligationRollForwardAnalysisRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetRetirementObligationsNoncurrent": {
     "auth_ref": [
      "r199"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.",
        "label": "Asset Retirement Obligations, Noncurrent",
        "terseLabel": "Non-current asset retirement obligation"
       }
      }
     },
     "localname": "AssetRetirementObligationsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetRetirementObligationsPolicy": {
     "auth_ref": [
      "r117",
      "r204"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for legal obligation associated with retirement of long-lived asset that results from acquisition, construction, or development or from normal operation of long-lived asset. Excludes environmental remediation liability from improper or other-than-normal operation of long-lived asset, obligation arising in connection with leased property that meets definition of lease payments or variable lease payments and from plan to sell or otherwise dispose of a long-lived asset.",
        "label": "Asset Retirement Obligation [Policy Text Block]",
        "terseLabel": "Asset Retirement Obligations"
       }
      }
     },
     "localname": "AssetRetirementObligationsPolicy",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_Assets": {
     "auth_ref": [
      "r171",
      "r521",
      "r536"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets",
        "totalLabel": "TOTAL ASSETS"
       }
      }
     },
     "localname": "Assets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Assets [Abstract]",
        "terseLabel": "Assets [Abstract]"
       }
      }
     },
     "localname": "AssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AssetsCurrent": {
     "auth_ref": [
      "r3",
      "r5",
      "r55"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.",
        "label": "Assets, Current",
        "terseLabel": "Total current assets",
        "totalLabel": "Total current assets"
       }
      }
     },
     "localname": "AssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_AssetsCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Assets, Current [Abstract]",
        "terseLabel": "CURRENT ASSETS"
       }
      }
     },
     "localname": "AssetsCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_AwardTypeAxis": {
     "auth_ref": [
      "r308",
      "r338"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of award under share-based payment arrangement.",
        "label": "Award Type [Axis]",
        "terseLabel": "Award Type [Axis]"
       }
      }
     },
     "localname": "AwardTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails",
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by location on balance sheet (statement of financial position).",
        "label": "Balance Sheet Location [Axis]",
        "terseLabel": "Balance Sheet Location [Axis]"
       }
      }
     },
     "localname": "BalanceSheetLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails",
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BalanceSheetLocationDomain": {
     "auth_ref": [
      "r417",
      "r422"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Location in the balance sheet (statement of financial position).",
        "label": "Balance Sheet Location [Domain]",
        "terseLabel": "Balance Sheet Location [Domain]"
       }
      }
     },
     "localname": "BalanceSheetLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails",
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BasisOfAccountingPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).",
        "label": "Basis of Accounting, Policy [Policy Text Block]",
        "terseLabel": "Basis of Presentation"
       }
      }
     },
     "localname": "BasisOfAccountingPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_BusinessAcquisitionAcquireeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identification of the acquiree in a material business combination (or series of individually immaterial business combinations), which may include the name or other type of identification of the acquiree.",
        "label": "Business Acquisition, Acquiree [Domain]",
        "terseLabel": "Business Acquisition, Acquiree [Domain]"
       }
      }
     },
     "localname": "BusinessAcquisitionAcquireeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOtherUpstreamAcquisitionsDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_BusinessAcquisitionAxis": {
     "auth_ref": [
      "r379",
      "r380"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by business combination or series of individually immaterial business combinations.",
        "label": "Business Acquisition [Axis]",
        "terseLabel": "Business Acquisition [Axis]"
       }
      }
     },
     "localname": "BusinessAcquisitionAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOtherUpstreamAcquisitionsDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessAcquisitionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Business Acquisition [Line Items]",
        "terseLabel": "JOINT VENTURES",
        "verboseLabel": "ACQUISITIONS AND DIVESTITURES"
       }
      }
     },
     "localname": "BusinessAcquisitionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOtherUpstreamAcquisitionsDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessCombinationConsiderationTransferred1": {
     "auth_ref": [
      "r385",
      "r386",
      "r387"
     ],
     "calculation": {
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.",
        "label": "Business Combination, Consideration Transferred",
        "terseLabel": "Purchase price",
        "totalLabel": "Consideration"
       }
      }
     },
     "localname": "BusinessCombinationConsiderationTransferred1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOtherUpstreamAcquisitionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationConsiderationTransferredAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Business Combination, Consideration Transferred [Abstract]",
        "terseLabel": "Consideration:"
       }
      }
     },
     "localname": "BusinessCombinationConsiderationTransferredAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable": {
     "auth_ref": [
      "r385",
      "r386"
     ],
     "calculation": {
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_BusinessCombinationConsiderationTransferred1",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.",
        "label": "Business Combination, Consideration Transferred, Equity Interests Issued and Issuable",
        "terseLabel": "Common stock issued",
        "verboseLabel": "Common stock issued (2.85 million shares)"
       }
      }
     },
     "localname": "BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationConsiderationTransferredLiabilitiesIncurred": {
     "auth_ref": [
      "r384",
      "r385",
      "r386",
      "r389"
     ],
     "calculation": {
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_BusinessCombinationConsiderationTransferred1",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.",
        "label": "Business Combination, Consideration Transferred, Liabilities Incurred",
        "terseLabel": "Liabilities assumed",
        "verboseLabel": "ARO liabilities assumed"
       }
      }
     },
     "localname": "BusinessCombinationConsiderationTransferredLiabilitiesIncurred",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOtherUpstreamAcquisitionsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets": {
     "auth_ref": [
      "r382"
     ],
     "calculation": {
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of assets acquired at the acquisition date.",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets",
        "totalLabel": "Recognized amounts of identifiable assets acquired"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory": {
     "auth_ref": [
      "r381",
      "r382"
     ],
     "calculation": {
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of inventory recognized as of the acquisition date.",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory",
        "verboseLabel": "Materials and supplies"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment": {
     "auth_ref": [
      "r381",
      "r382"
     ],
     "calculation": {
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of property, plant, and equipment recognized as of the acquisition date.",
        "label": "Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment",
        "verboseLabel": "Other property and equipment"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNetAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]",
        "terseLabel": "Identifiable assets acquired:"
       }
      }
     },
     "localname": "BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNetAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CallOptionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financial contract between two parties, the buyer and the seller of the option, where the buyer has the right but not the obligation to buy an agreed quantity of a particular commodity or financial instrument (the underlying instrument) from the seller of the option for a certain price (the strike price). Seller is obligated to sell the asset to the buyer, if the buyer exercises the option.",
        "label": "Call Option [Member]",
        "terseLabel": "Calls"
       }
      }
     },
     "localname": "CallOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities": {
     "auth_ref": [
      "r496"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated depreciation, depletion, amortization and valuation allowance relating to oil and gas producing activities.",
        "label": "Capitalized Costs, Accumulated Depreciation, Depletion, Amortization and Valuation Allowance Relating to Oil and Gas Producing Activities",
        "terseLabel": "Accumulated valuation allowance for unproved properties"
       }
      }
     },
     "localname": "CapitalizedCostsAccumulatedDepreciationDepletionAmortizationAndValuationAllowanceForRelatingToOilAndGasProducingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CapitalizedCostsMineralInterestsInUnprovedProperties": {
     "auth_ref": [
      "r496",
      "r497",
      "r518"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Capitalized costs of unproven properties that include fee ownership or a lease, concession, or other interest representing the right to extract oil or gas subject to such terms as may be imposed by the conveyance of that interest.",
        "label": "Capitalized Costs, Mineral Interests in Unproved Properties",
        "terseLabel": "Net capitalized costs attributable to unproved properties"
       }
      }
     },
     "localname": "CapitalizedCostsMineralInterestsInUnprovedProperties",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProjectAxis": {
     "auth_ref": [
      "r493",
      "r494",
      "r495"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by project.",
        "label": "Project [Axis]",
        "terseLabel": "Project [Axis]"
       }
      }
     },
     "localname": "CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProjectAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves": {
     "auth_ref": [
      "r501"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Additions to capitalized exploratory well costs that were added during the reporting period pending the determination of proved reserves.",
        "label": "Capitalized Exploratory Well Cost, Additions Pending Determination of Proved Reserves",
        "terseLabel": "Additions to capitalized exploratory well costs"
       }
      }
     },
     "localname": "CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CapitalizedExploratoryWellCostChargedToExpense1": {
     "auth_ref": [
      "r503"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for capitalized exploratory well costs for which proved reserves were not found at the exploratory well.",
        "label": "Capitalized Exploratory Well Cost, Charged to Expense",
        "negatedLabel": "Charged to expense"
       }
      }
     },
     "localname": "CapitalizedExploratoryWellCostChargedToExpense1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CapitalizedExploratoryWellCosts": {
     "auth_ref": [
      "r500"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of capitalized exploratory well costs that is pending the determination of proved reserves. This does not include amounts that were capitalized and subsequently expensed in the same annual period.",
        "label": "Capitalized Exploratory Well Costs",
        "periodEndLabel": "Balance, end of year",
        "periodStartLabel": "Balance, beginning of year"
       }
      }
     },
     "localname": "CapitalizedExploratoryWellCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CapitalizedExploratoryWellCostsRollForwardTableTextBlock": {
     "auth_ref": [
      "r500"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the change in capitalized exploratory costs during the period.",
        "label": "Capitalized Exploratory Well Costs, Roll Forward [Table Text Block]",
        "terseLabel": "Summary of the activity of capitalized exploratory well costs"
       }
      }
     },
     "localname": "CapitalizedExploratoryWellCostsRollForwardTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CarryingReportedAmountFairValueDisclosureMember": {
     "auth_ref": [
      "r445",
      "r446"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measured as reported on the statement of financial position (balance sheet).",
        "label": "Reported Value Measurement [Member]",
        "terseLabel": "Presented in the Balance Sheet"
       }
      }
     },
     "localname": "CarryingReportedAmountFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_Cash": {
     "auth_ref": [
      "r35",
      "r552",
      "r553"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.",
        "label": "Cash",
        "terseLabel": "Cash"
       }
      }
     },
     "localname": "Cash",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashAndCashEquivalentsAtCarryingValueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Cash and Cash Equivalents, at Carrying Value [Abstract]",
        "terseLabel": "Cash"
       }
      }
     },
     "localname": "CashAndCashEquivalentsAtCarryingValueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherCashDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CashAndCashEquivalentsFairValueDisclosure": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash and Cash Equivalents, Fair Value Disclosure",
        "terseLabel": "Cash equivalents"
       }
      }
     },
     "localname": "CashAndCashEquivalentsFairValueDisclosure",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents": {
     "auth_ref": [
      "r107",
      "r113",
      "r115"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents",
        "periodEndLabel": "Cash\u2014end of year",
        "periodStartLabel": "Cash\u2014beginning of year"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect": {
     "auth_ref": [
      "r107",
      "r450"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in cash, cash equivalents, and cash and cash equivalents restricted to withdrawal or usage; including effect from exchange rate change. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect",
        "totalLabel": "(Decrease) increase in cash"
       }
      }
     },
     "localname": "CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ChangesInProjectedBenefitObligationsFairValueOfPlanAssetsAndFundedStatusOfPlanTableTextBlock": {
     "auth_ref": [
      "r264"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the change in the benefit obligation, fair value of plan assets, and funded status of pension plans or other employee benefit plans.",
        "label": "Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block]",
        "terseLabel": "Funding status of plans"
       }
      }
     },
     "localname": "ChangesInProjectedBenefitObligationsFairValueOfPlanAssetsAndFundedStatusOfPlanTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ClassOfStockDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Share of stock differentiated by the voting rights the holder receives. Examples include, but are not limited to, common stock, redeemable preferred stock, nonredeemable preferred stock, and convertible stock.",
        "label": "Class of Stock [Domain]",
        "terseLabel": "Class of Stock [Domain]"
       }
      }
     },
     "localname": "ClassOfStockDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails",
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassOfTreasuryStockTable": {
     "auth_ref": [
      "r241",
      "r242",
      "r243",
      "r244"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.",
        "label": "Class of Treasury Stock [Table]",
        "terseLabel": "Class of Treasury Stock [Table]"
       }
      }
     },
     "localname": "ClassOfTreasuryStockTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ClassOfWarrantOrRightAxis": {
     "auth_ref": [
      "r128",
      "r245",
      "r306"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of warrant or right issued.",
        "label": "Class of Warrant or Right [Axis]",
        "terseLabel": "Class of Warrant or Right [Axis]"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ClassOfWarrantOrRightDomain": {
     "auth_ref": [
      "r121"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Name of the class or type of warrant or right outstanding. Warrants and rights represent derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months.",
        "label": "Class of Warrant or Right [Domain]",
        "terseLabel": "Class of Warrant or Right [Domain]"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1": {
     "auth_ref": [
      "r127"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Exercise price per share or per unit of warrants or rights outstanding.",
        "label": "Class of Warrant or Right, Exercise Price of Warrants or Rights",
        "terseLabel": "Warrant exercise price (in dollars per share)"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ClassOfWarrantOrRightOutstanding": {
     "auth_ref": [
      "r128"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of warrants or rights outstanding.",
        "label": "Class of Warrant or Right, Outstanding",
        "terseLabel": "Warrant outstanding (in shares)"
       }
      }
     },
     "localname": "ClassOfWarrantOrRightOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]",
        "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]"
       }
      }
     },
     "localname": "CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Commitments and Contingencies Disclosure [Abstract]"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CommitmentsAndContingenciesDisclosureTextBlock": {
     "auth_ref": [
      "r213",
      "r215"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for commitments and contingencies.",
        "label": "Commitments and Contingencies Disclosure [Text Block]",
        "terseLabel": "LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingencies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommitmentsAndContingenciesPolicyTextBlock": {
     "auth_ref": [
      "r117",
      "r216",
      "r561",
      "r562"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for commitments and contingencies, which may include policies for recognizing and measuring loss and gain contingencies.",
        "label": "Commitments and Contingencies, Policy [Policy Text Block]",
        "terseLabel": "Other Loss Contingencies"
       }
      }
     },
     "localname": "CommitmentsAndContingenciesPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_CommodityContractMember": {
     "auth_ref": [
      "r271",
      "r428"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Derivative instrument whose primary underlying risk is tied to commodity prices.",
        "label": "Commodity Contract [Member]",
        "terseLabel": "Commodity Contracts"
       }
      }
     },
     "localname": "CommodityContractMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonClassAMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Classification of common stock representing ownership interest in a corporation.",
        "label": "Common Class A [Member]",
        "terseLabel": "Class A common interest"
       }
      }
     },
     "localname": "CommonClassAMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonClassCMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Classification of common stock that has different rights than provided to Class A or B shares, representing ownership interest in a corporation.",
        "label": "Common Class C [Member]",
        "terseLabel": "Class C common interest"
       }
      }
     },
     "localname": "CommonClassCMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock that is subordinate to all other stock of the issuer.",
        "label": "Common Stock [Member]",
        "terseLabel": "Common Stock"
       }
      }
     },
     "localname": "CommonStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CommonStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face amount or stated value per share of common stock.",
        "label": "Common Stock, Par or Stated Value Per Share",
        "terseLabel": "Common stock, par value (in dollars per share)"
       }
      }
     },
     "localname": "CommonStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheetsParenthetical",
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_CommonStockSharesAuthorized": {
     "auth_ref": [
      "r24"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The maximum number of common shares permitted to be issued by an entity's charter and bylaws.",
        "label": "Common Stock, Shares Authorized",
        "terseLabel": "Common stock, authorized shares"
       }
      }
     },
     "localname": "CommonStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheetsParenthetical",
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockSharesOutstanding": {
     "auth_ref": [
      "r24",
      "r234"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.",
        "label": "Common Stock, Shares, Outstanding",
        "periodEndLabel": "Balance at the end of the year (in shares)",
        "periodStartLabel": "Balance at the beginning of the year (in shares)",
        "terseLabel": "Common stock, outstanding shares"
       }
      }
     },
     "localname": "CommonStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheetsParenthetical",
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_CommonStockValue": {
     "auth_ref": [
      "r24"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Common Stock, Value, Issued",
        "terseLabel": "Common stock (200 million shares authorized at $0.01 par value); 49,175,843 shares outstanding at December 31, 2019, 48,650,420 shares outstanding at December 31, 2018"
       }
      }
     },
     "localname": "CommonStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CompensationAndRetirementDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Retirement Benefits [Abstract]"
       }
      }
     },
     "localname": "CompensationAndRetirementDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_CompensationRelatedCostsPolicyTextBlock": {
     "auth_ref": [
      "r116",
      "r313"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for salaries, bonuses, incentive awards, postretirement and postemployment benefits granted to employees, including equity-based arrangements; discloses methodologies for measurement, and the bases for recognizing related assets and liabilities and recognizing and reporting compensation expense.",
        "label": "Compensation Related Costs, Policy [Policy Text Block]",
        "terseLabel": "Stock-Based Incentive Plans"
       }
      }
     },
     "localname": "CompensationRelatedCostsPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Components of Deferred Tax Assets and Liabilities [Abstract]",
        "terseLabel": "Deferred Tax Assets and Liabilities"
       }
      }
     },
     "localname": "ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ComprehensiveIncomeNetOfTax": {
     "auth_ref": [
      "r76",
      "r78",
      "r79"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.",
        "label": "Comprehensive Income (Loss), Net of Tax, Attributable to Parent",
        "totalLabel": "Comprehensive (loss) income attributable to common stock"
       }
      }
     },
     "localname": "ComprehensiveIncomeNetOfTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ConcentrationRiskBenchmarkDomain": {
     "auth_ref": [
      "r160",
      "r161",
      "r447",
      "r448"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The denominator in a calculation of a disclosed concentration risk percentage.",
        "label": "Concentration Risk Benchmark [Domain]",
        "terseLabel": "Concentration Risk Benchmark [Domain]"
       }
      }
     },
     "localname": "ConcentrationRiskBenchmarkDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ConcentrationRiskByBenchmarkAxis": {
     "auth_ref": [
      "r160",
      "r161",
      "r447",
      "r448",
      "r551"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by benchmark of concentration risk.",
        "label": "Concentration Risk Benchmark [Axis]",
        "terseLabel": "Concentration Risk Benchmark [Axis]"
       }
      }
     },
     "localname": "ConcentrationRiskByBenchmarkAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskByTypeAxis": {
     "auth_ref": [
      "r160",
      "r161",
      "r447",
      "r448",
      "r551"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of concentration risk, for example, but not limited to, asset, liability, net assets, geographic, customer, employees, supplier, lender.",
        "label": "Concentration Risk Type [Axis]",
        "terseLabel": "Concentration Risk Type [Axis]"
       }
      }
     },
     "localname": "ConcentrationRiskByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Concentration Risk [Line Items]",
        "terseLabel": "Revenue Recognition"
       }
      }
     },
     "localname": "ConcentrationRiskLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskPercentage1": {
     "auth_ref": [
      "r160",
      "r161",
      "r447",
      "r448"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the \"benchmark\" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.",
        "label": "Concentration Risk, Percentage",
        "terseLabel": "Concentration risk percentage"
       }
      }
     },
     "localname": "ConcentrationRiskPercentage1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ConcentrationRiskTable": {
     "auth_ref": [
      "r158",
      "r160",
      "r161",
      "r162",
      "r447",
      "r449"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Describes the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark.",
        "label": "Concentration Risk [Table]",
        "terseLabel": "Concentration Risk [Table]"
       }
      }
     },
     "localname": "ConcentrationRiskTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ConcentrationRiskTypeDomain": {
     "auth_ref": [
      "r160",
      "r161",
      "r447",
      "r448"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "For an entity that discloses a concentration risk as a percentage of some financial balance or benchmark, identifies the type (for example, asset, liability, net assets, geographic, customer, employees, supplier, lender) of the concentration.",
        "label": "Concentration Risk Type [Domain]",
        "terseLabel": "Concentration Risk Type [Domain]"
       }
      }
     },
     "localname": "ConcentrationRiskTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock": {
     "auth_ref": [
      "r133",
      "r391"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.",
        "label": "Condensed Financial Information of Parent Company Only Disclosure [Text Block]",
        "terseLabel": "CONDENSED CONSOLIDATING FINANCIAL INFORMATION"
       }
      }
     },
     "localname": "CondensedFinancialInformationOfParentCompanyOnlyDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ContractualObligation": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetailsCalc2": {
       "order": 2.0,
       "parentTag": "crc_ContractualObligationIncludingUndiscountedExcessAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.",
        "label": "Contractual Obligation",
        "terseLabel": "Present value of purchase obligations"
       }
      }
     },
     "localname": "ContractualObligation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractualObligationDueAfterFifthYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails": {
       "order": 6.0,
       "parentTag": "crc_ContractualObligationIncludingUndiscountedExcessAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contractual obligation due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Contractual Obligation, Due after Fifth Year",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "ContractualObligationDueAfterFifthYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractualObligationDueInFifthYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails": {
       "order": 5.0,
       "parentTag": "crc_ContractualObligationIncludingUndiscountedExcessAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contractual obligation due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Contractual Obligation, Due in Fifth Year",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "ContractualObligationDueInFifthYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractualObligationDueInFourthYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails": {
       "order": 4.0,
       "parentTag": "crc_ContractualObligationIncludingUndiscountedExcessAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contractual obligation due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Contractual Obligation, Due in Fourth Year",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "ContractualObligationDueInFourthYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractualObligationDueInNextTwelveMonths": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails": {
       "order": 1.0,
       "parentTag": "crc_ContractualObligationIncludingUndiscountedExcessAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Contractual Obligation, Due in Next Fiscal Year",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "ContractualObligationDueInNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractualObligationDueInSecondYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails": {
       "order": 2.0,
       "parentTag": "crc_ContractualObligationIncludingUndiscountedExcessAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contractual obligation due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Contractual Obligation, Due in Second Year",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "ContractualObligationDueInSecondYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractualObligationDueInThirdYear": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails": {
       "order": 3.0,
       "parentTag": "crc_ContractualObligationIncludingUndiscountedExcessAmount",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contractual obligation due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Contractual Obligation, Due in Third Year",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "ContractualObligationDueInThirdYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ContractualObligationFiscalYearMaturityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Contractual Obligation, Fiscal Year Maturity [Abstract]",
        "terseLabel": "Purchase obligations"
       }
      }
     },
     "localname": "ContractualObligationFiscalYearMaturityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CostOfRevenue": {
     "auth_ref": [
      "r88"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_ProfitLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate cost of goods produced and sold and services rendered during the reporting period.",
        "label": "Cost of Revenue",
        "terseLabel": "Total costs"
       }
      }
     },
     "localname": "CostOfRevenue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CostOfRevenueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Cost of Revenue [Abstract]",
        "terseLabel": "COSTS"
       }
      }
     },
     "localname": "CostOfRevenueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CreditFacilityAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
        "label": "Credit Facility [Axis]",
        "terseLabel": "Credit Facility [Axis]"
       }
      }
     },
     "localname": "CreditFacilityAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_CreditFacilityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Type of credit facility. Credit facilities provide capital to borrowers without the need to structure a loan for each borrowing.",
        "label": "Credit Facility [Domain]",
        "terseLabel": "Credit Facility [Domain]"
       }
      }
     },
     "localname": "CreditFacilityDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_CurrentFederalStateAndLocalTaxExpenseBenefit": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current state, local, and federal tax expense (benefit) pertaining to income (loss) from continuing operations.",
        "label": "Current Federal, State and Local, Tax Expense (Benefit)",
        "negatedLabel": "Provision (benefit) for federal, state and local income taxes",
        "terseLabel": "Income tax provision (benefit)"
       }
      }
     },
     "localname": "CurrentFederalStateAndLocalTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeAndProvisionForIncomeTaxDetails",
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_CustomerConcentrationRiskMember": {
     "auth_ref": [
      "r159"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Reflects the percentage that revenues in the period from one or more significant customers is to net revenues, as defined by the entity, such as total net revenues, product line revenues, segment revenues. The risk is the materially adverse effects of loss of a significant customer.",
        "label": "Customer Concentration Risk [Member]",
        "terseLabel": "Major Customers"
       }
      }
     },
     "localname": "CustomerConcentrationRiskMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Debt Disclosure [Abstract]"
       }
      }
     },
     "localname": "DebtDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentAxis": {
     "auth_ref": [
      "r14",
      "r16",
      "r17",
      "r522",
      "r524",
      "r534"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of debt instrument, including, but not limited to, draws against credit facilities.",
        "label": "Debt Instrument [Axis]",
        "terseLabel": "Debt Instrument [Axis]"
       }
      }
     },
     "localname": "DebtInstrumentAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentBasisSpreadOnVariableRate1": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage points added to the reference rate to compute the variable rate on the debt instrument.",
        "label": "Debt Instrument, Basis Spread on Variable Rate",
        "terseLabel": "Interest rate added to variable rate basis (as a percent)"
       }
      }
     },
     "localname": "DebtInstrumentBasisSpreadOnVariableRate1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentCarryingAmount": {
     "auth_ref": [
      "r17",
      "r222",
      "r524",
      "r534"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.",
        "label": "Long-term Debt, Gross",
        "netLabel": "Debt carrying value",
        "totalLabel": "Total Debt",
        "verboseLabel": "Outstanding borrowings"
       }
      }
     },
     "localname": "DebtInstrumentCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtOtherDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentFaceAmount": {
     "auth_ref": [
      "r453",
      "r455"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face (par) amount of debt instrument at time of issuance.",
        "label": "Debt Instrument, Face Amount",
        "verboseLabel": "Aggregate principal amount issued"
       }
      }
     },
     "localname": "DebtInstrumentFaceAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentInterestRateStatedPercentage": {
     "auth_ref": [
      "r45"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contractual interest rate for funds borrowed, under the debt agreement.",
        "label": "Debt Instrument, Interest Rate, Stated Percentage",
        "terseLabel": "Debt instrument interest rate stated percentage",
        "verboseLabel": "Interest rate (as a percent)"
       }
      }
     },
     "localname": "DebtInstrumentInterestRateStatedPercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Debt Instrument [Line Items]",
        "terseLabel": "Debt instrument",
        "verboseLabel": "Debt"
       }
      }
     },
     "localname": "DebtInstrumentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentNameDomain": {
     "auth_ref": [
      "r46"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The name for the particular debt instrument or borrowing that distinguishes it from other debt instruments or borrowings, including draws against credit facilities.",
        "label": "Debt Instrument, Name [Domain]",
        "terseLabel": "Debt Instrument, Name [Domain]"
       }
      }
     },
     "localname": "DebtInstrumentNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentRedemptionPeriodAxis": {
     "auth_ref": [
      "r531"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information about timing of debt redemption features under terms of the debt agreement.",
        "label": "Debt Instrument, Redemption, Period [Axis]",
        "terseLabel": "Debt Instrument, Redemption, Period [Axis]"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentRedemptionPeriodDomain": {
     "auth_ref": [
      "r531"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period as defined under terms of the debt agreement for debt redemption features.",
        "label": "Debt Instrument, Redemption, Period [Domain]",
        "terseLabel": "Debt Instrument, Redemption, Period [Domain]"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentRedemptionPeriodEndDate": {
     "auth_ref": [
      "r531"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "End date of debt instrument redemption period, in CCYY-MM-DD format.",
        "label": "Debt Instrument, Redemption Period, End Date",
        "terseLabel": "Redemption period end"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodEndDate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "dateItemType"
    },
    "us-gaap_DebtInstrumentRedemptionPeriodOneMember": {
     "auth_ref": [
      "r531"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period one representing most current period of debt redemption features under terms of the debt agreement.",
        "label": "Debt Instrument, Redemption, Period One [Member]",
        "terseLabel": "Redemption prior to fifth year"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodOneMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentRedemptionPeriodStartDate": {
     "auth_ref": [
      "r531"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Start date of debt instrument redemption period, in CCYY-MM-DD format.",
        "label": "Debt Instrument, Redemption Period, Start Date",
        "terseLabel": "Redemption period start"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodStartDate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "dateItemType"
    },
    "us-gaap_DebtInstrumentRedemptionPeriodTwoMember": {
     "auth_ref": [
      "r531"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period two representing second most current period of debt redemption features under terms of the debt agreement.",
        "label": "Debt Instrument, Redemption, Period Two [Member]",
        "terseLabel": "Debt Instrument, Redemption, Period Two"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPeriodTwoMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DebtInstrumentRedemptionPricePercentage": {
     "auth_ref": [
      "r531"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.",
        "label": "Debt Instrument, Redemption Price, Percentage",
        "terseLabel": "Percentage of principal amount at which notes can be redeemed prior to their maturity date"
       }
      }
     },
     "localname": "DebtInstrumentRedemptionPricePercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DebtInstrumentRepurchasedFaceAmount": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face (par) amount of the original debt instrument that was repurchased.",
        "label": "Debt Instrument, Repurchased Face Amount",
        "terseLabel": "Face value of debt reduction through payment or repurchase"
       }
      }
     },
     "localname": "DebtInstrumentRepurchasedFaceAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DebtInstrumentTable": {
     "auth_ref": [
      "r46",
      "r124",
      "r235",
      "r236",
      "r237",
      "r238",
      "r452",
      "r453",
      "r455",
      "r532"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A table or schedule providing information pertaining to long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Schedule of Long-term Debt Instruments [Table]",
        "terseLabel": "Schedule of Long-term Debt Instruments [Table]"
       }
      }
     },
     "localname": "DebtInstrumentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet": {
     "auth_ref": [
      "r223",
      "r454"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtDeferredGainAndIssuanceCostsDetails": {
       "order": 2.0,
       "parentTag": "crc_DeferredGainLossAndIssuanceCostsNet",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of unamortized debt discount (premium) and debt issuance costs.",
        "label": "Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net",
        "negatedLabel": "Deferred issuance costs and original issue discounts"
       }
      }
     },
     "localname": "DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtDeferredGainAndIssuanceCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredIncomeTaxLiabilities": {
     "auth_ref": [
      "r20",
      "r21",
      "r364",
      "r523",
      "r533"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax liability attributable to taxable temporary differences.",
        "label": "Deferred Tax Liabilities, Gross",
        "negatedTotalLabel": "Deferred Tax Liabilities, total net deferred taxes"
       }
      }
     },
     "localname": "DeferredIncomeTaxLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetInterestCarryforward": {
     "auth_ref": [
      "r372"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 9.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible interest carryforward.",
        "label": "Deferred Tax Asset, Interest Carryforward",
        "terseLabel": "Deferred Tax Asset, business interest expense carryforward"
       }
      }
     },
     "localname": "DeferredTaxAssetInterestCarryforward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsGross": {
     "auth_ref": [
      "r365"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredTaxAssetsNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.",
        "label": "Deferred Tax Assets, Gross",
        "totalLabel": "Deferred Tax Assets, subtotal"
       }
      }
     },
     "localname": "DeferredTaxAssetsGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsNet": {
     "auth_ref": [
      "r366"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.",
        "label": "Deferred Tax Assets, Net of Valuation Allowance",
        "negatedTotalLabel": "Deferred Tax Assets, total net deferred taxes"
       }
      }
     },
     "localname": "DeferredTaxAssetsNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsOperatingLossCarryforwards": {
     "auth_ref": [
      "r345",
      "r372",
      "r373"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 7.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards.",
        "label": "Deferred Tax Assets, Operating Loss Carryforwards",
        "verboseLabel": "Deferred Tax Assets, net operating loss carryforwards and credits"
       }
      }
     },
     "localname": "DeferredTaxAssetsOperatingLossCarryforwards",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsOther": {
     "auth_ref": [
      "r346",
      "r372",
      "r373"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 8.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other.",
        "label": "Deferred Tax Assets, Other",
        "verboseLabel": "Deferred Tax Assets, other"
       }
      }
     },
     "localname": "DeferredTaxAssetsOther",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment.",
        "label": "Deferred Tax Assets, Property, Plant and Equipment",
        "verboseLabel": "Deferred Tax Assets, property, plant and equipment differences"
       }
      }
     },
     "localname": "DeferredTaxAssetsPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits": {
     "auth_ref": [
      "r345",
      "r372",
      "r373"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from compensation and benefits costs.",
        "label": "Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits",
        "verboseLabel": "Deferred Tax Assets, deferred compensation and benefits"
       }
      }
     },
     "localname": "DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits": {
     "auth_ref": [
      "r372"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from postretirement benefits.",
        "label": "Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits",
        "verboseLabel": "Deferred Tax Assets, postretirement benefit accruals"
       }
      }
     },
     "localname": "DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations": {
     "auth_ref": [
      "r345",
      "r372",
      "r373"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_DeferredTaxAssetsGross",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from asset retirement obligations. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset.",
        "label": "Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations",
        "verboseLabel": "Deferred Tax Assets, asset retirement obligations"
       }
      }
     },
     "localname": "DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxAssetsValuationAllowance": {
     "auth_ref": [
      "r367"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredTaxAssetsNet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.",
        "label": "Deferred Tax Assets, Valuation Allowance",
        "negatedLabel": "Deferred Tax Assets, valuation allowance"
       }
      }
     },
     "localname": "DeferredTaxAssetsValuationAllowance",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxLiabilitiesOther": {
     "auth_ref": [
      "r346",
      "r372",
      "r373"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DeferredIncomeTaxLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax liability attributable to taxable temporary differences classified as other.",
        "label": "Deferred Tax Liabilities, Other",
        "negatedLabel": "Deferred Tax Liabilities, all other"
       }
      }
     },
     "localname": "DeferredTaxLiabilitiesOther",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment": {
     "auth_ref": [
      "r346",
      "r372",
      "r373"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DeferredIncomeTaxLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment.",
        "label": "Deferred Tax Liabilities, Property, Plant and Equipment",
        "negatedLabel": "Deferred Tax Liabilities, property, plant and equipment differences"
       }
      }
     },
     "localname": "DeferredTaxLiabilitiesPropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets": {
     "auth_ref": [
      "r266",
      "r301"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses.",
        "label": "Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)",
        "terseLabel": "Actual gain (loss) on plan assets"
       }
      }
     },
     "localname": "DefinedBenefitPlanActualReturnOnPlanAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanActuarialGainLoss": {
     "auth_ref": [
      "r262"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.",
        "label": "Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)",
        "negatedLabel": "Actuarial loss (gain)"
       }
      }
     },
     "localname": "DefinedBenefitPlanActuarialGainLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses": {
     "auth_ref": [
      "r279",
      "r298",
      "r301"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan.",
        "label": "Defined Benefit Plan, Amortization of Gain (Loss)",
        "negatedLabel": "Amortization of net actuarial loss"
       }
      }
     },
     "localname": "DefinedBenefitPlanAmortizationOfGainsLosses",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet": {
     "auth_ref": [
      "r256",
      "r268"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.",
        "label": "Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position",
        "totalLabel": "Amounts recognized in the consolidated balance sheets, total"
       }
      }
     },
     "localname": "DefinedBenefitPlanAmountsRecognizedInBalanceSheet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract]",
        "terseLabel": "Amounts recognized in the balance sheet:"
       }
      }
     },
     "localname": "DefinedBenefitPlanAmountsRecognizedInBalanceSheetAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract]",
        "terseLabel": "Amounts recognized in other comprehensive income (loss):"
       }
      }
     },
     "localname": "DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanAssumedHealthCareCostTrendRatesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]",
        "terseLabel": "Assumed health care cost trend rates"
       }
      }
     },
     "localname": "DefinedBenefitPlanAssumedHealthCareCostTrendRatesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate": {
     "auth_ref": [
      "r283"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.",
        "label": "Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate",
        "terseLabel": "Discount rate"
       }
      }
     },
     "localname": "DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease": {
     "auth_ref": [
      "r284"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.",
        "label": "Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase",
        "terseLabel": "Rate of compensation increase"
       }
      }
     },
     "localname": "DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate": {
     "auth_ref": [
      "r283"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan.",
        "label": "Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate",
        "terseLabel": "Discount rate"
       }
      }
     },
     "localname": "DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets": {
     "auth_ref": [
      "r285"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.",
        "label": "Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets",
        "terseLabel": "Assumed long-term rate of return on assets"
       }
      }
     },
     "localname": "DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease": {
     "auth_ref": [
      "r284"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average rate of compensation increase used to determine net periodic benefit cost of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.",
        "label": "Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase",
        "terseLabel": "Rate of compensation increase"
       }
      }
     },
     "localname": "DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedBenefitPlanBenefitObligation": {
     "auth_ref": [
      "r258"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DefinedBenefitPlanFundedStatusOfPlan",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.",
        "label": "Defined Benefit Plan, Benefit Obligation",
        "periodEndLabel": "Benefit obligation\u2014end of year",
        "periodStartLabel": "Benefit obligation\u2014beginning of year"
       }
      }
     },
     "localname": "DefinedBenefitPlanBenefitObligation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid": {
     "auth_ref": [
      "r263",
      "r302"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.",
        "label": "Defined Benefit Plan, Benefit Obligation, Benefits Paid",
        "negatedLabel": "Benefits paid"
       }
      }
     },
     "localname": "DefinedBenefitPlanBenefitObligationBenefitsPaid",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis": {
     "auth_ref": [
      "r271",
      "r272",
      "r287",
      "r301"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by defined benefit plan asset investment.",
        "label": "Defined Benefit Plan, Plan Assets, Category [Axis]",
        "terseLabel": "Defined Benefit Plan, Plan Assets, Category [Axis]"
       }
      }
     },
     "localname": "DefinedBenefitPlanByPlanAssetCategoriesAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanChangeInBenefitObligationRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]",
        "terseLabel": "Changes in the benefit obligation:"
       }
      }
     },
     "localname": "DefinedBenefitPlanChangeInBenefitObligationRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]",
        "terseLabel": "Changes in plan assets:"
       }
      }
     },
     "localname": "DefinedBenefitPlanChangeInFairValueOfPlanAssetsRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanContributionsByEmployer": {
     "auth_ref": [
      "r267",
      "r271",
      "r272",
      "r300",
      "r301"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contribution received by defined benefit plan from employer which increases plan assets.",
        "label": "Defined Benefit Plan, Plan Assets, Contributions by Employer",
        "verboseLabel": "Employer contributions"
       }
      }
     },
     "localname": "DefinedBenefitPlanContributionsByEmployer",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanCurtailments": {
     "auth_ref": [
      "r260"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of (increase) decrease in benefit obligation of defined benefit plan from event reducing expected years of future service of present employees or eliminating accrual of benefits for some or all future services of present employees.",
        "label": "Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment",
        "negatedTerseLabel": "Curtailment"
       }
      }
     },
     "localname": "DefinedBenefitPlanCurtailments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanDebtSecurityMember": {
     "auth_ref": [
      "r271"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Debt instrument issued by corporation, government and governmental agency, municipality, and other institution; in which defined benefit plan asset is invested.",
        "label": "Defined Benefit Plan, Debt Security [Member]",
        "terseLabel": "Debt Securities"
       }
      }
     },
     "localname": "DefinedBenefitPlanDebtSecurityMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DefinedBenefitPlanDisclosureLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Defined Benefit Plan Disclosure [Line Items]",
        "terseLabel": "Defined Benefit Plan Disclosure",
        "verboseLabel": "Postretirement and Other Benefit Plans Disclosure"
       }
      }
     },
     "localname": "DefinedBenefitPlanDisclosureLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedBenefitPlanDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Defined Benefit Plan, Expected Future Benefit Payment [Abstract]",
        "terseLabel": "Estimated future undiscounted benefit payments"
       }
      }
     },
     "localname": "DefinedBenefitPlanEstimatedFutureBenefitPaymentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter": {
     "auth_ref": [
      "r273"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.",
        "label": "Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter",
        "terseLabel": "2025 - 2029"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths": {
     "auth_ref": [
      "r273"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.",
        "label": "Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive": {
     "auth_ref": [
      "r273"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of benefits for defined benefit plan expected to be paid in fifth fiscal year following latest fiscal year.",
        "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year Five",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour": {
     "auth_ref": [
      "r273"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of benefits for defined benefit plan expected to be paid in fourth fiscal year following latest fiscal year.",
        "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree": {
     "auth_ref": [
      "r273"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of benefits for defined benefit plan expected to be paid in third fiscal year following latest fiscal year.",
        "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo": {
     "auth_ref": [
      "r273"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.",
        "label": "Defined Benefit Plan, Expected Future Benefit Payment, Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear": {
     "auth_ref": [
      "r274"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of contributions expected to be received by defined benefit plan from employer in next fiscal year following latest fiscal year.",
        "label": "Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year",
        "terseLabel": "Expected contribution in 2018"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedFutureEmployerContributionsNextFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets": {
     "auth_ref": [
      "r278",
      "r297",
      "r301"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.",
        "label": "Defined Benefit Plan, Expected Return (Loss) on Plan Assets",
        "negatedLabel": "Expected return on plan assets"
       }
      }
     },
     "localname": "DefinedBenefitPlanExpectedReturnOnPlanAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanFairValueOfPlanAssets": {
     "auth_ref": [
      "r265",
      "r271",
      "r272",
      "r301"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DefinedBenefitPlanFundedStatusOfPlan",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.",
        "label": "Defined Benefit Plan, Plan Assets, Amount",
        "periodEndLabel": "Fair value of plan assets\u2014end of year",
        "periodStartLabel": "Fair value of plan assets\u2014beginning of year",
        "verboseLabel": "Fair value of plan assets"
       }
      }
     },
     "localname": "DefinedBenefitPlanFairValueOfPlanAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanFundedStatusOfPlan": {
     "auth_ref": [
      "r256",
      "r268"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of funded (unfunded) status of defined benefit plan, measured as difference between fair value of plan assets and benefit obligation. Includes, but is not limited to, overfunded (underfunded) status.",
        "label": "Defined Benefit Plan, Funded (Unfunded) Status of Plan",
        "totalLabel": "Unfunded status"
       }
      }
     },
     "localname": "DefinedBenefitPlanFundedStatusOfPlan",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear": {
     "auth_ref": [
      "r286"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status.",
        "label": "Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year",
        "terseLabel": "Projected healthcare cost rate in 2019"
       }
      }
     },
     "localname": "DefinedBenefitPlanHealthCareCostTrendRateAssumedNextFiscalYear",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedBenefitPlanInterestCost": {
     "auth_ref": [
      "r261",
      "r277",
      "r296",
      "r301"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cost recognized for passage of time related to defined benefit plan.",
        "label": "Defined Benefit Plan, Interest Cost",
        "terseLabel": "Interest cost on projected benefit obligation"
       }
      }
     },
     "localname": "DefinedBenefitPlanInterestCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost": {
     "auth_ref": [
      "r275",
      "r294",
      "r301"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of net periodic benefit cost (credit) for defined benefit plan.",
        "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit)",
        "totalLabel": "Net periodic benefit cost"
       }
      }
     },
     "localname": "DefinedBenefitPlanNetPeriodicBenefitCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]",
        "terseLabel": "Net periodic benefit costs:"
       }
      }
     },
     "localname": "DefinedBenefitPlanNetPeriodicBenefitCostAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]",
        "terseLabel": "Pension plans with accumulated benefit obligation in excess of plan assets"
       }
      }
     },
     "localname": "DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation": {
     "auth_ref": [
      "r290",
      "r291",
      "r301"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.",
        "label": "Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation",
        "terseLabel": "Accumulated Benefit Obligation"
       }
      }
     },
     "localname": "DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets": {
     "auth_ref": [
      "r290",
      "r291",
      "r301"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of plan asset for defined benefit plan with accumulated benefit obligation in excess of plan assets.",
        "label": "Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets",
        "terseLabel": "Fair Value of Plan Assets"
       }
      }
     },
     "localname": "DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation": {
     "auth_ref": [
      "r290",
      "r301"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of projected benefit obligation for defined benefit pension plan with accumulated benefit obligation in excess of plan assets.",
        "label": "Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation",
        "terseLabel": "Projected Benefit Obligation"
       }
      }
     },
     "localname": "DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanPlanAssetsTargetAllocationPercentage": {
     "auth_ref": [
      "r270",
      "r301"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.",
        "label": "Defined Benefit Plan, Plan Assets, Target Allocation, Percentage",
        "verboseLabel": "Target allocation of plan assets (as a percent)"
       }
      }
     },
     "localname": "DefinedBenefitPlanPlanAssetsTargetAllocationPercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1": {
     "auth_ref": [
      "r280",
      "r299"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) recognized in net periodic benefit (cost) credit from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk related to obligation and assets used to effect settlement.",
        "label": "Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement",
        "negatedLabel": "Settlement costs"
       }
      }
     },
     "localname": "DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanServiceCost": {
     "auth_ref": [
      "r259",
      "r276",
      "r295",
      "r301"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.",
        "label": "Defined Benefit Plan, Service Cost",
        "terseLabel": "Service cost\u2014benefits earned during the period"
       }
      }
     },
     "localname": "DefinedBenefitPlanServiceCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanSpecialTerminationBenefits": {
     "auth_ref": [
      "r260"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in benefit obligation for benefits provided to employees payable from defined benefit plan or payable upon retirement.",
        "label": "Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits",
        "terseLabel": "Cost of special termination benefits"
       }
      }
     },
     "localname": "DefinedBenefitPlanSpecialTerminationBenefits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]",
        "terseLabel": "Benefit Obligation Assumptions:"
       }
      }
     },
     "localname": "DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]",
        "terseLabel": "Net Periodic Benefit Cost Assumptions:"
       }
      }
     },
     "localname": "DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DepreciationDepletionAndAmortization": {
     "auth_ref": [
      "r111",
      "r169"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 3.0,
       "parentTag": "crc_CostsAndOtherDeductions",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.",
        "label": "Depreciation, Depletion and Amortization",
        "terseLabel": "Depreciation, depletion and amortization"
       }
      }
     },
     "localname": "DepreciationDepletionAndAmortization",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAmountOfHedgedItem": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of hedged item in hedging relationship. Excludes hedged asset or liability.",
        "label": "Derivative, Amount of Hedged Item",
        "terseLabel": "Variable rate indebtedness amount"
       }
      }
     },
     "localname": "DerivativeAmountOfHedgedItem",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetFairValueGrossLiability": {
     "auth_ref": [
      "r57",
      "r64",
      "r420"
     ],
     "calculation": {
      "http://www.oxy.com/role/DerivativesFairValueDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeAssets",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.",
        "label": "Derivative Asset, Fair Value, Gross Liability",
        "negatedLabel": "Gross Amounts Offset in the Balance Sheet"
       }
      }
     },
     "localname": "DerivativeAssetFairValueGrossLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssets": {
     "auth_ref": [
      "r58",
      "r61",
      "r444"
     ],
     "calculation": {
      "http://www.oxy.com/role/DerivativesFairValueDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Asset",
        "totalLabel": "Net Fair Value Presented in the Balance Sheet"
       }
      }
     },
     "localname": "DerivativeAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetsCurrent": {
     "auth_ref": [
      "r58"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OtherAssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Asset, Current",
        "terseLabel": "Derivative assets"
       }
      }
     },
     "localname": "DerivativeAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet": {
     "auth_ref": [
      "r410"
     ],
     "calculation": {
      "http://www.oxy.com/role/DerivativesFairValueDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.",
        "label": "Derivative Assets (Liabilities), at Fair Value, Net",
        "totalLabel": "Total derivatives"
       }
      }
     },
     "localname": "DerivativeAssetsLiabilitiesAtFairValueNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeAveragePriceRiskOptionStrikePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The average strike price on the group of price risk option contracts such as put options or call options.",
        "label": "Derivative, Average Price Risk Option Strike Price",
        "terseLabel": "Weighted-average price (in dollars per barrel)"
       }
      }
     },
     "localname": "DerivativeAveragePriceRiskOptionStrikePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "perUnitItemType"
    },
    "us-gaap_DerivativeCapInterestRate": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Cap rate on an interest rate derivative such as an interest rate cap or collar. If market rates exceed the cap rate, a payment or receipt is triggered on the contract.",
        "label": "Derivative, Cap Interest Rate",
        "terseLabel": "Interest rate to be in place to receive payment"
       }
      }
     },
     "localname": "DerivativeCapInterestRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_DerivativeContractTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Financial instrument or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.",
        "label": "Derivative Contract [Domain]",
        "terseLabel": "Derivative Contract [Domain]"
       }
      }
     },
     "localname": "DerivativeContractTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/DerivativesFairValueDetails",
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DerivativeFairValueOfDerivativeAsset": {
     "auth_ref": [
      "r56",
      "r63",
      "r420",
      "r492"
     ],
     "calculation": {
      "http://www.oxy.com/role/DerivativesFairValueDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeAssets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.",
        "label": "Derivative Asset, Fair Value, Gross Asset",
        "terseLabel": "Gross Amounts Recognized at Fair Value"
       }
      }
     },
     "localname": "DerivativeFairValueOfDerivativeAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeFairValueOfDerivativeLiability": {
     "auth_ref": [
      "r56",
      "r63",
      "r420",
      "r492"
     ],
     "calculation": {
      "http://www.oxy.com/role/DerivativesFairValueDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DerivativeLiabilities",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.",
        "label": "Derivative Liability, Fair Value, Gross Liability",
        "negatedLabel": "Gross Amounts Recognized at Fair Value"
       }
      }
     },
     "localname": "DerivativeFairValueOfDerivativeLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeGainLossOnDerivativeNet": {
     "auth_ref": [
      "r419"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.",
        "label": "Derivative, Gain (Loss) on Derivative, Net",
        "terseLabel": "Non-cash derivative (losses) gains"
       }
      }
     },
     "localname": "DerivativeGainLossOnDerivativeNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeInstrumentRiskAxis": {
     "auth_ref": [
      "r418",
      "r421",
      "r425",
      "r429"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of derivative contract.",
        "label": "Derivative Instrument [Axis]",
        "terseLabel": "Derivative Instrument [Axis]"
       }
      }
     },
     "localname": "DerivativeInstrumentRiskAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/DerivativesFairValueDetails",
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Derivative Instruments and Hedging Activities Disclosure [Abstract]"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock": {
     "auth_ref": [
      "r435"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.",
        "label": "Derivative Instruments and Hedging Activities Disclosure [Text Block]",
        "terseLabel": "DERIVATIVES"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Derivatives"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Derivative Instruments and Hedging Activities Disclosures [Line Items]",
        "terseLabel": "Derivatives"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosuresLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about derivatives and hedging activities.",
        "label": "Derivative Instruments and Hedging Activities Disclosures [Table]",
        "terseLabel": "Derivative Instruments and Hedging Activities Disclosures [Table]"
       }
      }
     },
     "localname": "DerivativeInstrumentsAndHedgingActivitiesDisclosuresTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails",
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet": {
     "auth_ref": [
      "r424",
      "r426"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.",
        "label": "Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net",
        "verboseLabel": "Loss recorded in other non-operating expense"
       }
      }
     },
     "localname": "DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilities": {
     "auth_ref": [
      "r58",
      "r61",
      "r444"
     ],
     "calculation": {
      "http://www.oxy.com/role/DerivativesFairValueDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.",
        "label": "Derivative Liability",
        "negatedTotalLabel": "Net Fair Value Presented in the Balance Sheet"
       }
      }
     },
     "localname": "DerivativeLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeLiabilityFairValueGrossAsset": {
     "auth_ref": [
      "r57",
      "r64",
      "r420"
     ],
     "calculation": {
      "http://www.oxy.com/role/DerivativesFairValueDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DerivativeLiabilities",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value of asset associated with financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.",
        "label": "Derivative Liability, Fair Value, Gross Asset",
        "terseLabel": "Gross Amounts Offset in the Balance Sheet"
       }
      }
     },
     "localname": "DerivativeLiabilityFairValueGrossAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DerivativeNonmonetaryNotionalAmount": {
     "auth_ref": [
      "r412",
      "r414"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Nominal number of units used to calculate payment on derivative.",
        "label": "Derivative, Nonmonetary Notional Amount",
        "terseLabel": "Daily volume (in Bbl)"
       }
      }
     },
     "localname": "DerivativeNonmonetaryNotionalAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "us-gaap_DerivativesPolicyTextBlock": {
     "auth_ref": [
      "r117",
      "r131",
      "r411",
      "r413",
      "r415",
      "r416",
      "r431"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for its derivative instruments and hedging activities.",
        "label": "Derivatives, Policy [Policy Text Block]",
        "terseLabel": "Derivative Instruments"
       }
      }
     },
     "localname": "DerivativesPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisaggregationOfRevenueLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Disaggregation of Revenue [Line Items]",
        "terseLabel": "Disaggregation of revenue"
       }
      }
     },
     "localname": "DisaggregationOfRevenueLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisaggregationOfRevenueTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
        "label": "Disaggregation of Revenue [Table]",
        "terseLabel": "Disaggregation of Revenue [Table]"
       }
      }
     },
     "localname": "DisaggregationOfRevenueTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisaggregationOfRevenueTableTextBlock": {
     "auth_ref": [
      "r248"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.",
        "label": "Disaggregation of Revenue [Table Text Block]",
        "terseLabel": "Schedule of disaggregated revenue"
       }
      }
     },
     "localname": "DisaggregationOfRevenueTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock": {
     "auth_ref": [
      "r343"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for share-based payment arrangement.",
        "label": "Share-based Payment Arrangement [Text Block]",
        "terseLabel": "STOCK-BASED COMPENSATION"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensation"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Payment Arrangement [Abstract]"
       }
      }
     },
     "localname": "DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.",
        "label": "Disposal Group, Including Discontinued Operation, Consideration",
        "terseLabel": "Total consideration of the sale of Lost Hills field 50% interest"
       }
      }
     },
     "localname": "DisposalGroupIncludingDiscontinuedOperationConsideration",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresDivestituresDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DomesticCountryMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of the government that is entitled to levy and collect income taxes from the entity in its country of domicile.",
        "label": "Domestic Tax Authority [Member]",
        "terseLabel": "Federal"
       }
      }
     },
     "localname": "DomesticCountryMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_DueFromJointVentures": {
     "auth_ref": [
      "r129",
      "r477",
      "r479",
      "r481",
      "r543"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherAssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "For an unclassified balance sheet, amounts due from an entity in which the reporting entity shares joint control with another party or group.",
        "label": "Due from Joint Ventures",
        "terseLabel": "Net amounts due from joint interest partners"
       }
      }
     },
     "localname": "DueFromJointVentures",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_DueToAffiliateNoncurrent": {
     "auth_ref": [
      "r18",
      "r122",
      "r477",
      "r482",
      "r554"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of receivables owed to an entity that is affiliated with the reporting entity by means of direct or indirect ownership, which are usually due after one year (or one business cycle, if longer).",
        "label": "Due to Affiliate, Noncurrent",
        "terseLabel": "Amounts due to (from) affiliates"
       }
      }
     },
     "localname": "DueToAffiliateNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EarlyRepaymentOfSeniorDebt": {
     "auth_ref": [
      "r101"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for the extinguishment of long-term borrowing, with the highest claim on the assets of the entity in case of bankruptcy or liquidation, before its maturity.",
        "label": "Early Repayment of Senior Debt",
        "terseLabel": "Repurchase value of the principal amounts",
        "verboseLabel": "Repurchase value of the principal amounts of senior debt"
       }
      }
     },
     "localname": "EarlyRepaymentOfSeniorDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EarningsPerShareAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share [Abstract]",
        "verboseLabel": "Net (loss) income attributable to common stock per share"
       }
      }
     },
     "localname": "EarningsPerShareAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareBasic": {
     "auth_ref": [
      "r84",
      "r137",
      "r143",
      "r145",
      "r146",
      "r147",
      "r151",
      "r530",
      "r545"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.",
        "label": "Earnings Per Share, Basic",
        "terseLabel": "Basic (in dollars per share)",
        "verboseLabel": "Basic EPS (in dollars per share)"
       }
      }
     },
     "localname": "EarningsPerShareBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareBasicAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share, Basic [Abstract]",
        "verboseLabel": "Basic EPS calculation"
       }
      }
     },
     "localname": "EarningsPerShareBasicAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerShareDiluted": {
     "auth_ref": [
      "r84",
      "r137",
      "r143",
      "r145",
      "r146",
      "r147",
      "r151",
      "r530",
      "r545"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.",
        "label": "Earnings Per Share, Diluted",
        "terseLabel": "Diluted EPS (in dollars per share)",
        "verboseLabel": "Diluted (in dollars per share)"
       }
      }
     },
     "localname": "EarningsPerShareDiluted",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_EarningsPerShareDilutedAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Earnings Per Share, Diluted [Abstract]",
        "verboseLabel": "Diluted EPS calculation"
       }
      }
     },
     "localname": "EarningsPerShareDilutedAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EarningsPerSharePolicyTextBlock": {
     "auth_ref": [
      "r117",
      "r148",
      "r149",
      "r150"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements.",
        "label": "Earnings Per Share, Policy [Policy Text Block]",
        "terseLabel": "Earnings Per Share"
       }
      }
     },
     "localname": "EarningsPerSharePolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EarningsPerShareTextBlock": {
     "auth_ref": [
      "r152"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for earnings per share.",
        "label": "Earnings Per Share [Text Block]",
        "terseLabel": "EARNINGS PER SHARE"
       }
      }
     },
     "localname": "EarningsPerShareTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShare"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateContinuingOperations": {
     "auth_ref": [
      "r126",
      "r351",
      "r352"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "Effective Income Tax Rate Reconciliation, Percent",
        "totalLabel": "Effective tax rate"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateContinuingOperations",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Effective Income Tax Rate Reconciliation, Percent [Abstract]",
        "terseLabel": "Total income tax expense (benefit) differs from the U.S. federal income tax rate to pre-tax income (loss)"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate": {
     "auth_ref": [
      "r351",
      "r352",
      "r375"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of domestic federal statutory tax rate applicable to pretax income (loss).",
        "label": "Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent",
        "terseLabel": "U.S. federal statutory tax rate"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance": {
     "auth_ref": [
      "r351",
      "r352",
      "r375"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.",
        "label": "Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent",
        "terseLabel": "Change in valuation allowance, net"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate": {
     "auth_ref": [
      "r351",
      "r352",
      "r375"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the income tax rates.",
        "label": "Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent",
        "terseLabel": "Decrease in U.S. federal corporate tax rate"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost": {
     "auth_ref": [
      "r351",
      "r352",
      "r375"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to nondeductible expense for share-based payment arrangement.",
        "label": "Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent",
        "terseLabel": "Stock-based compensation, net"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments": {
     "auth_ref": [
      "r351",
      "r352",
      "r375"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 7.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to other adjustments.",
        "label": "Effective Income Tax Rate Reconciliation, Other Adjustments, Percent",
        "terseLabel": "Other, net"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationOtherAdjustments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes": {
     "auth_ref": [
      "r351",
      "r352",
      "r375"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).",
        "label": "Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent",
        "terseLabel": "State income taxes, net"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits": {
     "auth_ref": [
      "r351",
      "r352",
      "r375"
     ],
     "calculation": {
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_EffectiveIncomeTaxRateContinuingOperations",
       "weight": -1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.",
        "label": "Effective Income Tax Rate Reconciliation, Tax Credit, Percent",
        "negatedTerseLabel": "Tax credits, net"
       }
      }
     },
     "localname": "EffectiveIncomeTaxRateReconciliationTaxCredits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]",
        "terseLabel": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationCashFlowEffectCashUsedToSettleAwards": {
     "auth_ref": [
      "r337"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate cash paid by the entity during the period to settle equity instruments granted under equity-based payment arrangements.",
        "label": "Share-based Payment Arrangement, Cash Used to Settle Award",
        "terseLabel": "Cash payments"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationCashFlowEffectCashUsedToSettleAwards",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized": {
     "auth_ref": [
      "r336"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cost not yet recognized for nonvested award under share-based payment arrangement.",
        "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount",
        "terseLabel": "Unrecognized compensation expense"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1": {
     "auth_ref": [
      "r336"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition",
        "terseLabel": "Weighted-average period over which unrecognized compensation expense is expected to be recognized"
       }
      }
     },
     "localname": "EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_EquityClassOfTreasuryStockLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Equity, Class of Treasury Stock [Line Items]",
        "terseLabel": "Statement [Line Items]"
       }
      }
     },
     "localname": "EquityClassOfTreasuryStockLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_EquityComponentDomain": {
     "auth_ref": [
      "r234"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Components of equity are the parts of the total Equity balance including that which is allocated to common, preferred, treasury stock, retained earnings, etc.",
        "label": "Equity Component [Domain]",
        "terseLabel": "Equity Component [Domain]"
       }
      }
     },
     "localname": "EquityComponentDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Equity Method Investments and Joint Ventures [Abstract]"
       }
      }
     },
     "localname": "EquityMethodInvestmentsAndJointVenturesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_EquityMethodInvestmentsDisclosureTextBlock": {
     "auth_ref": [
      "r185",
      "r407"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group.",
        "label": "Equity Method Investments and Joint Ventures Disclosure [Text Block]",
        "terseLabel": "JOINT VENTURES"
       }
      }
     },
     "localname": "EquityMethodInvestmentsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVentures"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_EquitySecuritiesMember": {
     "auth_ref": [
      "r11",
      "r15",
      "r183",
      "r527",
      "r535",
      "r559"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Ownership interest or right to acquire or dispose of ownership interest in corporations and other legal entities for which ownership interest is represented by shares of common or preferred stock, convertible securities, stock rights, or stock warrants.",
        "label": "Equity Securities [Member]",
        "terseLabel": "Equity Securities"
       }
      }
     },
     "localname": "EquitySecuritiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_EstimateOfFairValueFairValueDisclosureMember": {
     "auth_ref": [
      "r444"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measured as an estimate of fair value.",
        "label": "Estimate of Fair Value Measurement [Member]",
        "terseLabel": "Recognized Fair Value"
       }
      }
     },
     "localname": "EstimateOfFairValueFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ExplorationExpense": {
     "auth_ref": [
      "r507"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 5.0,
       "parentTag": "crc_CostsAndOtherDeductions",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Exploration expenses (including prospecting) related to oil and gas producing entities and would be included in operating expenses of that entity. Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or \"G&amp;G\" costs. (ii) Costs of carrying and retaining undeveloped properties, such as delay rentals, ad valorem taxes on properties, legal costs for title defense, and the maintenance of land and lease records. (iii) Dry hole contributions and bottom hole contributions. (iv) Costs of drilling and equipping exploratory wells. (v) Costs of drilling exploratory-type stratigraphic test wells.",
        "label": "Exploration Expense",
        "terseLabel": "Exploration expense"
       }
      }
     },
     "localname": "ExplorationExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock": {
     "auth_ref": [
      "r438"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.",
        "label": "Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]",
        "terseLabel": "Summary of fair value measurement inputs and valuation techniques"
       }
      }
     },
     "localname": "FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain": {
     "auth_ref": [
      "r440"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Class of asset.",
        "label": "Asset Class [Domain]",
        "terseLabel": "Asset Class [Domain]"
       }
      }
     },
     "localname": "FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueByAssetClassAxis": {
     "auth_ref": [
      "r436",
      "r441"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by class of asset.",
        "label": "Asset Class [Axis]",
        "terseLabel": "Asset Class [Axis]"
       }
      }
     },
     "localname": "FairValueByAssetClassAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByFairValueHierarchyLevelAxis": {
     "auth_ref": [
      "r271",
      "r272",
      "r301",
      "r437",
      "r488"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by level within fair value hierarchy and fair value measured at net asset value per share as practical expedient.",
        "label": "Fair Value Hierarchy and NAV [Axis]",
        "terseLabel": "Fair Value Hierarchy and NAV [Axis]"
       }
      }
     },
     "localname": "FairValueByFairValueHierarchyLevelAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueByMeasurementBasisAxis": {
     "auth_ref": [
      "r436",
      "r442"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by measurement basis.",
        "label": "Measurement Basis [Axis]",
        "terseLabel": "Measurement Basis [Axis]"
       }
      }
     },
     "localname": "FairValueByMeasurementBasisAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FairValueDisclosureItemAmountsDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement basis, for example, but not limited to, reported value, fair value, portion at fair value, portion at other than fair value.",
        "label": "Fair Value Measurement [Domain]",
        "terseLabel": "Fair Value Measurement [Domain]"
       }
      }
     },
     "localname": "FairValueDisclosureItemAmountsDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel1Member": {
     "auth_ref": [
      "r271",
      "r272",
      "r301",
      "r437",
      "r489"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Quoted prices in active markets for identical assets or liabilities that the reporting entity can access at the measurement date.",
        "label": "Fair Value, Inputs, Level 1 [Member]",
        "terseLabel": "Level 1"
       }
      }
     },
     "localname": "FairValueInputsLevel1Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel2Member": {
     "auth_ref": [
      "r271",
      "r272",
      "r301",
      "r437",
      "r490"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Inputs other than quoted prices included within level 1 that are observable for an asset or liability, either directly or indirectly, including, but not limited to, quoted prices for similar assets or liabilities in active markets, or quoted prices for identical or similar assets or liabilities in inactive markets.",
        "label": "Fair Value, Inputs, Level 2 [Member]",
        "terseLabel": "Level 2"
       }
      }
     },
     "localname": "FairValueInputsLevel2Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueInputsLevel3Member": {
     "auth_ref": [
      "r271",
      "r272",
      "r301",
      "r437",
      "r491"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.",
        "label": "Fair Value, Inputs, Level 3 [Member]",
        "terseLabel": "Level 3"
       }
      }
     },
     "localname": "FairValueInputsLevel3Member",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FairValueMeasurementPolicyPolicyTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for fair value measurements of financial and non-financial assets, liabilities and instruments classified in shareholders' equity. Disclosures include, but are not limited to, how an entity that manages a group of financial assets and liabilities on the basis of its net exposure measures the fair value of those assets and liabilities.",
        "label": "Fair Value Measurement, Policy [Policy Text Block]",
        "terseLabel": "Fair Value Measurements"
       }
      }
     },
     "localname": "FairValueMeasurementPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FairValueMeasurementsFairValueHierarchyDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Categories used to prioritize the inputs to valuation techniques to measure fair value.",
        "label": "Fair Value Hierarchy and NAV [Domain]",
        "terseLabel": "Fair Value Hierarchy [Domain]"
       }
      }
     },
     "localname": "FairValueMeasurementsFairValueHierarchyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FederalFundsEffectiveSwapRateMember": {
     "auth_ref": [
      "r434"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fixed rate on U.S. dollar, constant-notional interest rate swap having its variable-rate leg referenced to Federal Funds effective rate with no additional spread over Federal Funds effective rate on that variable-rate leg.",
        "label": "Fed Funds Effective Rate Overnight Index Swap Rate [Member]",
        "verboseLabel": "Alternative Base Rate Loan Federal fund rate"
       }
      }
     },
     "localname": "FederalFundsEffectiveSwapRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Finance Lease, Liability, Payment, Due [Abstract]",
        "terseLabel": "Finance lease liabilities"
       }
      }
     },
     "localname": "FinanceLeaseLiabilitiesPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FinanceLeaseLiability": {
     "auth_ref": [
      "r463",
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease.",
        "label": "Finance Lease, Liability",
        "terseLabel": "Present value of lease liabilities"
       }
      }
     },
     "localname": "FinanceLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityCurrent": {
     "auth_ref": [
      "r463"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails": {
       "order": 2.0,
       "parentTag": "crc_TotalLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as current.",
        "label": "Finance Lease, Liability, Current",
        "terseLabel": "Finance lease"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [
      "r474"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.",
        "label": "Finance Lease, Liability, Maturity [Table Text Block]",
        "terseLabel": "Schedule of maturities of our financing lease liabilities"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_FinanceLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r463"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails": {
       "order": 4.0,
       "parentTag": "crc_TotalLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from finance lease, classified as noncurrent.",
        "label": "Finance Lease, Liability, Noncurrent",
        "terseLabel": "Finance lease"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueAfterYearFive": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due after fifth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due after Year Five",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in next fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Next Twelve Months",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFive": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fifth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Five",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in fourth fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in third fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for finance lease, due in second fiscal year following latest fiscal year.",
        "label": "Finance Lease, Liability, Payments, Due Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for finance lease.",
        "label": "Finance Lease, Liability, Undiscounted Excess Amount",
        "negatedTerseLabel": "Less: Interest"
       }
      }
     },
     "localname": "FinanceLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseRightOfUseAsset": {
     "auth_ref": [
      "r462"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails": {
       "order": 2.0,
       "parentTag": "crc_LeasesRightofUseAsset",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under finance lease.",
        "label": "Finance Lease, Right-of-Use Asset",
        "terseLabel": "Finance lease, net"
       }
      }
     },
     "localname": "FinanceLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r472",
      "r475"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average discount rate for finance lease calculated at point in time.",
        "label": "Finance Lease, Weighted Average Discount Rate, Percent",
        "terseLabel": "Weighted-average discount rate"
       }
      }
     },
     "localname": "FinanceLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r471",
      "r475"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Finance Lease, Weighted Average Remaining Lease Term",
        "terseLabel": "Weighted-average remaining lease term (in years)"
       }
      }
     },
     "localname": "FinanceLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]",
        "terseLabel": "Asset Class:"
       }
      }
     },
     "localname": "FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_FiniteLivedIntangibleAssetAcquiredInPlaceLeases": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents the amount of value allocated by a lessor (acquirer) to lease agreements which exist at acquisition of a leased property. Such amount may include the value assigned to existing tenant relationships and excludes the market adjustment component of the value assigned for above or below-market leases acquired.",
        "label": "Finite-Lived Intangible Asset, Acquired-in-Place Leases",
        "terseLabel": "Amount allocated to in-place leases"
       }
      }
     },
     "localname": "FiniteLivedIntangibleAssetAcquiredInPlaceLeases",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_FixedIncomeFundsMember": {
     "auth_ref": [
      "r271"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Investment that pools funds from investors to invest in a combination of underlying investments, primarily fixed income investments.",
        "label": "Fixed Income Funds [Member]",
        "terseLabel": "Fixed income"
       }
      }
     },
     "localname": "FixedIncomeFundsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_GainLossOnDerivativeInstrumentsNetPretax": {
     "auth_ref": [
      "r418"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 3.0,
       "parentTag": "us-gaap_Revenues",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.",
        "label": "Gain (Loss) on Derivative Instruments, Net, Pretax",
        "negatedLabel": "Net derivative loss (gain) from commodity contracts",
        "terseLabel": "Net derivative (loss) gain from commodity contracts",
        "verboseLabel": "Net derivative (loss) gain from commodity contracts"
       }
      }
     },
     "localname": "GainLossOnDerivativeInstrumentsNetPretax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainLossOnDispositionOfAssets1": {
     "auth_ref": [
      "r111"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 4.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.",
        "label": "Gain (Loss) on Disposition of Assets",
        "negatedLabel": "Gain on asset divestitures",
        "terseLabel": "Gain on asset divestitures"
       }
      }
     },
     "localname": "GainLossOnDispositionOfAssets1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresDivestituresDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainLossOnRepurchaseOfDebtInstrument": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 3.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of gain (loss) from the difference between the repurchase price of a debt instrument initially issued by the entity and the net carrying amount of the debt at the time of its repurchase.",
        "label": "Gain (Loss) on Repurchase of Debt Instrument",
        "negatedLabel": "Net gain on early extinguishment of debt",
        "terseLabel": "Net gain on early extinguishment of debt",
        "verboseLabel": "Pre-tax unamortized deferred gain on early extinguishment of debt and deferred issuance costs"
       }
      }
     },
     "localname": "GainLossOnRepurchaseOfDebtInstrument",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainsLossesOnExtinguishmentOfDebt": {
     "auth_ref": [
      "r111",
      "r225",
      "r226"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.",
        "label": "Gain (Loss) on Extinguishment of Debt",
        "negatedTerseLabel": "Loss on early extinguishment of debt"
       }
      }
     },
     "localname": "GainsLossesOnExtinguishmentOfDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GainsLossesOnRecourseDebt": {
     "auth_ref": [
      "r225",
      "r226"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount represents the difference between the cash acquisition price of the debt and the net carrying amount of the debt at the time of its extinguishment.",
        "label": "Gains (Losses) on Recourse Debt",
        "terseLabel": "Pre-tax unamortized deferred gain on early extinguishment of debt"
       }
      }
     },
     "localname": "GainsLossesOnRecourseDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_GeneralAndAdministrativeExpenseMember": {
     "auth_ref": [
      "r85"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing general and administrative expense.",
        "label": "General and Administrative Expense [Member]",
        "terseLabel": "General and administrative expenses"
       }
      }
     },
     "localname": "GeneralAndAdministrativeExpenseMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ImpairmentOfOilAndGasProperties": {
     "auth_ref": [
      "r111",
      "r194",
      "r517"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced.",
        "label": "Impairment of Oil and Gas Properties",
        "terseLabel": "Asset impairment charges"
       }
      }
     },
     "localname": "ImpairmentOfOilAndGasProperties",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest": {
     "auth_ref": [
      "r82",
      "r137",
      "r519",
      "r528",
      "r546"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_ProfitLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.",
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest",
        "terseLabel": "Income (loss) before income taxes",
        "totalLabel": "INCOME (LOSS) BEFORE INCOME TAXES",
        "verboseLabel": "Income (loss) before income taxes"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/IncomeTaxesIncomeAndProvisionForIncomeTaxDetails",
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterestAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest [Abstract]",
        "verboseLabel": "Income (loss) before income taxes"
       }
      }
     },
     "localname": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterestAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeAndProvisionForIncomeTaxDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Income Statement [Abstract]"
       }
      }
     },
     "localname": "IncomeStatementAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationAxis": {
     "auth_ref": [
      "r195"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by location in the income statement.",
        "label": "Income Statement Location [Axis]",
        "terseLabel": "Income Statement Location [Axis]"
       }
      }
     },
     "localname": "IncomeStatementLocationAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeStatementLocationDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Location in the income statement.",
        "label": "Income Statement Location [Domain]",
        "terseLabel": "Income Statement Location [Domain]"
       }
      }
     },
     "localname": "IncomeStatementLocationDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxAuthorityAxis": {
     "auth_ref": [
      "r355"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by tax jurisdiction.",
        "label": "Income Tax Authority [Axis]",
        "terseLabel": "Income Tax Authority [Axis]"
       }
      }
     },
     "localname": "IncomeTaxAuthorityAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxAuthorityDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Agency, division or body classification that levies income taxes, examines tax returns for compliance, or grants exemptions from or makes other decisions pertaining to income taxes.",
        "label": "Income Tax Authority [Domain]",
        "terseLabel": "Income Tax Authority [Domain]"
       }
      }
     },
     "localname": "IncomeTaxAuthorityDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_IncomeTaxContingencyLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Income Tax Contingency [Line Items]",
        "terseLabel": "Income Tax Contingency [Line Items]"
       }
      }
     },
     "localname": "IncomeTaxContingencyLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxContingencyTable": {
     "auth_ref": [
      "r356",
      "r361",
      "r363",
      "r374"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months.",
        "label": "Income Tax Contingency [Table]",
        "terseLabel": "Income Tax Contingency [Table]"
       }
      }
     },
     "localname": "IncomeTaxContingencyTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxCreditsAndAdjustments": {
     "auth_ref": [
      "r112"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions.",
        "label": "Income Tax Credits and Adjustments",
        "terseLabel": "Tax credit carryforwards"
       }
      }
     },
     "localname": "IncomeTaxCreditsAndAdjustments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxDisclosureAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Income Tax Disclosure [Abstract]",
        "terseLabel": "Income Taxes"
       }
      }
     },
     "localname": "IncomeTaxDisclosureAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherIncomeTaxesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxDisclosureTextBlock": {
     "auth_ref": [
      "r378"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.",
        "label": "Income Tax Disclosure [Text Block]",
        "terseLabel": "INCOME TAXES"
       }
      }
     },
     "localname": "IncomeTaxDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxes"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IncomeTaxExpenseBenefit": {
     "auth_ref": [
      "r120",
      "r170",
      "r376"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_ProfitLoss",
       "weight": -1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_ProfitLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.",
        "label": "Income Tax Expense (Benefit)",
        "negatedLabel": "Income tax provision",
        "negatedTerseLabel": "Income tax provision"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxExpenseBenefitContinuingOperationsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Income Tax Expense (Benefit), Continuing Operations [Abstract]",
        "terseLabel": "Provision (benefit) for federal, state and local income taxes"
       }
      }
     },
     "localname": "IncomeTaxExpenseBenefitContinuingOperationsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeAndProvisionForIncomeTaxDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncomeTaxPolicyTextBlock": {
     "auth_ref": [
      "r80",
      "r117",
      "r349",
      "r350",
      "r362",
      "r363",
      "r369",
      "r377",
      "r563"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.",
        "label": "Income Tax, Policy [Policy Text Block]",
        "terseLabel": "Income Taxes"
       }
      }
     },
     "localname": "IncomeTaxPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance": {
     "auth_ref": [
      "r348",
      "r351",
      "r352"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.",
        "label": "Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount",
        "terseLabel": "Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount"
       }
      }
     },
     "localname": "IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncomeTaxUncertaintiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Income Tax Uncertainties [Abstract]",
        "terseLabel": "Unrecognized Tax Benefits"
       }
      }
     },
     "localname": "IncomeTaxUncertaintiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities": {
     "auth_ref": [
      "r110"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 11.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid.",
        "label": "Increase (Decrease) in Accounts Payable and Accrued Liabilities",
        "terseLabel": "Decrease in accounts payable and accrued liabilities"
       }
      }
     },
     "localname": "IncreaseDecreaseInAccountsPayableAndAccruedLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInCapitalizedExploratoryWellCostsThatArePendingDeterminationOfProvedReservesRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Increase (Decrease) in Capitalized Exploratory Well Costs that are Pending Determination of Proved Reserves [Roll Forward]",
        "terseLabel": "Capitalized exploratory well costs for the years ended December 31:"
       }
      }
     },
     "localname": "IncreaseDecreaseInCapitalizedExploratoryWellCostsThatArePendingDeterminationOfProvedReservesRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInInventories": {
     "auth_ref": [
      "r110"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.",
        "label": "Increase (Decrease) in Inventories",
        "negatedLabel": "(Increase) decrease in inventories"
       }
      }
     },
     "localname": "IncreaseDecreaseInInventories",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInOperatingCapitalAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Increase (Decrease) in Operating Capital [Abstract]",
        "terseLabel": "Changes in operating assets and liabilities, net:"
       }
      }
     },
     "localname": "IncreaseDecreaseInOperatingCapitalAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_IncreaseDecreaseInOtherCurrentAssets": {
     "auth_ref": [
      "r110"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in current assets classified as other.",
        "label": "Increase (Decrease) in Other Current Assets",
        "negatedLabel": "Increase in other current assets"
       }
      }
     },
     "localname": "IncreaseDecreaseInOtherCurrentAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInReceivables": {
     "auth_ref": [
      "r110"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 12.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.",
        "label": "Increase (Decrease) in Receivables",
        "negatedLabel": "Decrease (increase) in trade receivables"
       }
      }
     },
     "localname": "IncreaseDecreaseInReceivables",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IncreaseDecreaseInStockholdersEquityRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Increase (Decrease) in Stockholders' Equity [Roll Forward]",
        "terseLabel": "Increase (decrease) in Equity",
        "verboseLabel": "Common stock issuances"
       }
      }
     },
     "localname": "IncreaseDecreaseInStockholdersEquityRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_InterestAndDebtExpense": {
     "auth_ref": [
      "r451"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest and debt related expenses associated with nonoperating financing activities of the entity.",
        "label": "Interest and Debt Expense",
        "negatedLabel": "Interest and debt expense, net"
       }
      }
     },
     "localname": "InterestAndDebtExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPaidNet": {
     "auth_ref": [
      "r105",
      "r108",
      "r114"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.",
        "label": "Interest Paid, Excluding Capitalized Interest, Operating Activities",
        "terseLabel": "Interest paid, net of capitalized amounts"
       }
      }
     },
     "localname": "InterestPaidNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestPayableCurrent": {
     "auth_ref": [
      "r7",
      "r8",
      "r43"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_AccruedLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).",
        "label": "Interest Payable, Current",
        "terseLabel": "Accrued interest"
       }
      }
     },
     "localname": "InterestPayableCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InterestRateCapMember": {
     "auth_ref": [
      "r427"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contract in which the cap writer, in return for a premium, agrees to limit, or cap, the cap holder's risk associated with an increase in interest rates. If rates go above a specified interest-rate-level (the strike price or the cap rate), the cap holder is entitled to receive cash payments equal to the excess of the market rate over the strike price multiplied by the notional principal amount.",
        "label": "Interest Rate Cap [Member]",
        "terseLabel": "Interest-rate contract"
       }
      }
     },
     "localname": "InterestRateCapMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InterestRateContractMember": {
     "auth_ref": [
      "r271",
      "r427"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Derivative instrument whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate.",
        "label": "Interest Rate Contract [Member]",
        "terseLabel": "Interest Rate Contracts"
       }
      }
     },
     "localname": "InterestRateContractMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InterestRateDerivativeAssetsAtFairValue": {
     "auth_ref": [],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.",
        "label": "Interest Rate Derivative Assets, at Fair Value",
        "verboseLabel": "Interest rate derivative assets"
       }
      }
     },
     "localname": "InterestRateDerivativeAssetsAtFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_IntersegmentEliminationMember": {
     "auth_ref": [
      "r172"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Eliminating entries used in operating segment consolidation.",
        "label": "Intersegment Eliminations [Member]",
        "terseLabel": "Eliminations"
       }
      }
     },
     "localname": "IntersegmentEliminationMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_InventoryFinishedGoods": {
     "auth_ref": [
      "r50"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherInventoriesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_InventoryNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.",
        "label": "Inventory, Finished Goods, Gross",
        "terseLabel": "Finished goods"
       }
      }
     },
     "localname": "InventoryFinishedGoods",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherInventoriesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InventoryNet": {
     "auth_ref": [
      "r0",
      "r52",
      "r187"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      },
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherInventoriesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.",
        "label": "Inventory, Net",
        "terseLabel": "Inventories",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "InventoryNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherInventoriesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_InventoryPolicyTextBlock": {
     "auth_ref": [
      "r9",
      "r53",
      "r117",
      "r153",
      "r188",
      "r189"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of inventory accounting policy for inventory classes, including, but not limited to, basis for determining inventory amounts, methods by which amounts are added and removed from inventory classes, loss recognition on impairment of inventories, and situations in which inventories are stated above cost.",
        "label": "Inventory, Policy [Policy Text Block]",
        "terseLabel": "Inventories"
       }
      }
     },
     "localname": "InventoryPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_InvestmentsInAndAdvancesToAffiliatesAmountOfEquity": {
     "auth_ref": [
      "r556",
      "r557",
      "r558"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of Equity in net profit and loss for the period. Give totals for each group. If operations of any controlled companies are different in character from those of the company, group such affiliates (1) within divisions and (2) by type of activities.",
        "label": "Investments in and Advances to Affiliates, Amount of Equity",
        "terseLabel": "Investments in consolidated subsidiaries"
       }
      }
     },
     "localname": "InvestmentsInAndAdvancesToAffiliatesAmountOfEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LandAndBuildingMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Real estate held for productive use and structures used in the conduct of business, including but not limited to, office, production, storage and distribution facilities.",
        "label": "Land and Building [Member]",
        "terseLabel": "Office building and land"
       }
      }
     },
     "localname": "LandAndBuildingMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LeaseCost": {
     "auth_ref": [
      "r473",
      "r475"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lease cost recognized by lessee for lease contract.",
        "label": "Lease, Cost",
        "totalLabel": "Total operating lease costs"
       }
      }
     },
     "localname": "LeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LeaseCostAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Lease, Cost [Abstract]",
        "terseLabel": "Operating lease costs"
       }
      }
     },
     "localname": "LeaseCostAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LeaseCostTableTextBlock": {
     "auth_ref": [
      "r473"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.",
        "label": "Lease, Cost [Table Text Block]",
        "terseLabel": "Schedule of operating lease costs, including amounts capitalized to property, plant and equipment"
       }
      }
     },
     "localname": "LeaseCostTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LeasesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Leases [Abstract]"
       }
      }
     },
     "localname": "LeasesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeFinanceLeasesTextBlock": {
     "auth_ref": [
      "r476"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for finance leases of lessee. Includes, but is not limited to, description of lessee's finance lease and maturity analysis of finance lease liability.",
        "label": "Lessee, Finance Leases [Text Block]",
        "terseLabel": "LEASES"
       }
      }
     },
     "localname": "LesseeFinanceLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeLeaseDescriptionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Lessee, Lease, Description [Line Items]",
        "terseLabel": "Lessee, Lease, Description [Line Items]"
       }
      }
     },
     "localname": "LesseeLeaseDescriptionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeLeaseDescriptionTable": {
     "auth_ref": [
      "r465"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about lessee's leases.",
        "label": "Lessee, Lease, Description [Table]",
        "terseLabel": "Lessee, Lease, Description [Table]"
       }
      }
     },
     "localname": "LesseeLeaseDescriptionTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock": {
     "auth_ref": [
      "r474"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.",
        "label": "Lessee, Operating Lease, Liability, Maturity [Table Text Block]",
        "terseLabel": "Schedule of maturities of our operating lease liabilities"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityMaturityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due after Year Five",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in next fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Five",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.",
        "label": "Lessee, Operating Lease, Liability, Payments, Due Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityPaymentsDueYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount": {
     "auth_ref": [
      "r474"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.",
        "label": "Lessee, Operating Lease, Liability, Undiscounted Excess Amount",
        "negatedTerseLabel": "Less: Interest"
       }
      }
     },
     "localname": "LesseeOperatingLeaseLiabilityUndiscountedExcessAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LesseeOperatingLeasesTextBlock": {
     "auth_ref": [
      "r476"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for operating leases of lessee. Includes, but is not limited to, description of operating lease and maturity analysis of operating lease liability.",
        "label": "Lessee, Operating Leases [Text Block]",
        "terseLabel": "LEASES"
       }
      }
     },
     "localname": "LesseeOperatingLeasesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Leases"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LetterOfCreditMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A document typically issued by a financial institution which acts as a guarantee of payment to a beneficiary, or as the source of payment for a specific transaction (for example, wiring funds to a foreign exporter if and when specified merchandise is accepted pursuant to the terms of the letter of credit).",
        "label": "Letter of Credit [Member]",
        "terseLabel": "Letters of Credit"
       }
      }
     },
     "localname": "LetterOfCreditMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LettersOfCreditOutstandingAmount": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.",
        "label": "Letters of Credit Outstanding, Amount",
        "terseLabel": "Letters of credit outstanding amount"
       }
      }
     },
     "localname": "LettersOfCreditOutstandingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquity": {
     "auth_ref": [
      "r30",
      "r526",
      "r541"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.",
        "label": "Liabilities and Equity",
        "totalLabel": "TOTAL LIABILITIES AND EQUITY"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesAndStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Liabilities and Equity [Abstract]",
        "terseLabel": "Liabilities and Equity [Abstract]"
       }
      }
     },
     "localname": "LiabilitiesAndStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LiabilitiesCurrent": {
     "auth_ref": [
      "r44"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.",
        "label": "Liabilities, Current",
        "terseLabel": "Total current liabilities",
        "totalLabel": "Total current liabilities"
       }
      }
     },
     "localname": "LiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LiabilitiesCurrentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Liabilities, Current [Abstract]",
        "terseLabel": "CURRENT LIABILITIES"
       }
      }
     },
     "localname": "LiabilitiesCurrentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCreditFacilityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Line of Credit Facility [Abstract]",
        "terseLabel": "Financial covenants",
        "verboseLabel": "Financial performance covenants"
       }
      }
     },
     "localname": "LineOfCreditFacilityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LineOfCreditFacilityCommitmentFeePercentage": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.",
        "label": "Line of Credit Facility, Commitment Fee Percentage",
        "verboseLabel": "Commitment fees on unused portion of the Revolving Credit Facility"
       }
      }
     },
     "localname": "LineOfCreditFacilityCommitmentFeePercentage",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity": {
     "auth_ref": [
      "r42"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.",
        "label": "Line of Credit Facility, Current Borrowing Capacity",
        "verboseLabel": "Available borrowing capacity, subject to minimum liquidity requirement"
       }
      }
     },
     "localname": "LineOfCreditFacilityCurrentBorrowingCapacity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity": {
     "auth_ref": [
      "r42"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.",
        "label": "Line of Credit Facility, Maximum Borrowing Capacity",
        "verboseLabel": "Maximum borrowing capacity"
       }
      }
     },
     "localname": "LineOfCreditFacilityMaximumBorrowingCapacity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LineOfCreditMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point in time, and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars.",
        "label": "Line of Credit [Member]",
        "terseLabel": "Credit Agreements"
       }
      }
     },
     "localname": "LineOfCreditMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LondonInterbankOfferedRateLIBORMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate at which a bank borrows funds from other banks in the London interbank market.",
        "label": "London Interbank Offered Rate (LIBOR) [Member]",
        "terseLabel": "Applicable margin on LIBOR loans"
       }
      }
     },
     "localname": "LondonInterbankOfferedRateLIBORMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LongMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicates an ownership position in, or purchase of, a security.",
        "label": "Long [Member]",
        "terseLabel": "Purchased"
       }
      }
     },
     "localname": "LongMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LongTermDebt": {
     "auth_ref": [
      "r17",
      "r224",
      "r524",
      "r537"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtOtherDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.",
        "label": "Long-term Debt",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "LongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Long-term Debt, Unclassified [Abstract]",
        "terseLabel": "Debt"
       }
      }
     },
     "localname": "LongTermDebtAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongTermDebtFairValue": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.",
        "label": "Long-term Debt, Fair Value",
        "terseLabel": "Estimated fair value of long-term debt"
       }
      }
     },
     "localname": "LongTermDebtFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive": {
     "auth_ref": [
      "r134",
      "r217"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtOtherDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Long-term Debt, Maturities, Repayments of Principal after Year Five",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths": {
     "auth_ref": [
      "r134",
      "r217"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtOtherDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive": {
     "auth_ref": [
      "r134",
      "r217"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtOtherDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Long-term Debt, Maturities, Repayments of Principal in Year Five",
        "terseLabel": "2024"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour": {
     "auth_ref": [
      "r134",
      "r217"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtOtherDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Long-term Debt, Maturities, Repayments of Principal in Year Four",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree": {
     "auth_ref": [
      "r134",
      "r217"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtOtherDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Long-term Debt, Maturities, Repayments of Principal in Year Three",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo": {
     "auth_ref": [
      "r134",
      "r217"
     ],
     "calculation": {
      "http://www.oxy.com/role/DebtOtherDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_LongTermDebt",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Long-term Debt, Maturities, Repayments of Principal in Year Two",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_LongTermDebtTextBlock": {
     "auth_ref": [
      "r227"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for long-term debt.",
        "label": "Long-term Debt [Text Block]",
        "terseLabel": "DEBT"
       }
      }
     },
     "localname": "LongTermDebtTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by category of items purchased under a long-term purchase commitment.",
        "label": "Category of Item Purchased [Axis]",
        "terseLabel": "Category of Item Purchased [Axis]"
       }
      }
     },
     "localname": "LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "General description of the goods or services to be purchased from the counterparty to the long-term purchase commitment.",
        "label": "Long-term Purchase Commitment, Category of Item Purchased [Domain]",
        "terseLabel": "Long-term Purchase Commitment, Category of Item Purchased [Domain]"
       }
      }
     },
     "localname": "LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_LongTermPurchaseCommitmentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Long-term Purchase Commitment [Line Items]",
        "terseLabel": "Long-term Purchase Commitment"
       }
      }
     },
     "localname": "LongTermPurchaseCommitmentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongTermPurchaseCommitmentTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule setting forth key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount.",
        "label": "Long-term Purchase Commitment [Table]",
        "terseLabel": "Long-term Purchase Commitment [Table]"
       }
      }
     },
     "localname": "LongTermPurchaseCommitmentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LawsuitsClaimsCommitmentsAndContingenciesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongtermDebtTypeAxis": {
     "auth_ref": [
      "r46"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of long-term debt.",
        "label": "Long-term Debt, Type [Axis]",
        "terseLabel": "Long-term Debt, Type [Axis]"
       }
      }
     },
     "localname": "LongtermDebtTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_LongtermDebtTypeDomain": {
     "auth_ref": [
      "r46",
      "r218"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Type of long-term debt arrangement, such as notes, line of credit, commercial paper, asset-based financing, project financing, letter of credit financing. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the company, if longer.",
        "label": "Long-term Debt, Type [Domain]",
        "terseLabel": "Long-term Debt, Type [Domain]"
       }
      }
     },
     "localname": "LongtermDebtTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MajorCustomersPolicyPolicyTextBlock": {
     "auth_ref": [
      "r158",
      "r160",
      "r161",
      "r178"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for major customers. Major customers are those that the loss of such customers would have a material adverse effect on the entity.",
        "label": "Major Customers, Policy [Policy Text Block]",
        "verboseLabel": "Concentration of Customers"
       }
      }
     },
     "localname": "MajorCustomersPolicyPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_MaturitiesOfLongTermDebtAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Maturities of Long-term Debt [Abstract]",
        "terseLabel": "Principal maturities of long-term debt"
       }
      }
     },
     "localname": "MaturitiesOfLongTermDebtAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtOtherDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MeasurementInputExpectedDividendRateMember": {
     "auth_ref": [
      "r438"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using expected dividend rate to be paid to holder of share per year.",
        "label": "Measurement Input, Expected Dividend Rate [Member]",
        "terseLabel": "Dividend yield"
       }
      }
     },
     "localname": "MeasurementInputExpectedDividendRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputExpectedTermMember": {
     "auth_ref": [
      "r438"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using period financial instrument is expected to be outstanding. Excludes maturity date.",
        "label": "Measurement Input, Expected Term [Member]",
        "terseLabel": "Expected term (in years)"
       }
      }
     },
     "localname": "MeasurementInputExpectedTermMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputPriceVolatilityMember": {
     "auth_ref": [
      "r438"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using rate at which price of security will increase (decrease) for given set of returns.",
        "label": "Measurement Input, Price Volatility [Member]",
        "terseLabel": "Volatility"
       }
      }
     },
     "localname": "MeasurementInputPriceVolatilityMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputRiskFreeInterestRateMember": {
     "auth_ref": [
      "r438"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using interest rate on instrument with zero risk of financial loss.",
        "label": "Measurement Input, Risk Free Interest Rate [Member]",
        "terseLabel": "Risk-free interest rate"
       }
      }
     },
     "localname": "MeasurementInputRiskFreeInterestRateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputSharePriceMember": {
     "auth_ref": [
      "r438"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input using share price of saleable stock.",
        "label": "Measurement Input, Share Price [Member]",
        "terseLabel": "Fair value of underlying common stock"
       }
      }
     },
     "localname": "MeasurementInputSharePriceMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MeasurementInputTypeAxis": {
     "auth_ref": [
      "r438"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of measurement input used to determine value of asset and liability.",
        "label": "Measurement Input Type [Axis]",
        "terseLabel": "Measurement Input Type [Axis]"
       }
      }
     },
     "localname": "MeasurementInputTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MeasurementInputTypeDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measurement input used to determine value of asset and liability.",
        "label": "Measurement Input Type [Domain]",
        "terseLabel": "Measurement Input Type [Domain]"
       }
      }
     },
     "localname": "MeasurementInputTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_MinorityInterest": {
     "auth_ref": [
      "r49",
      "r525",
      "r540"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).",
        "label": "Stockholders' Equity Attributable to Noncontrolling Interest",
        "terseLabel": "Noncontrolling interests"
       }
      }
     },
     "localname": "MinorityInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders": {
     "auth_ref": [
      "r239"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders.",
        "label": "Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders",
        "negatedLabel": "Distributions paid to noncontrolling interest holders"
       }
      }
     },
     "localname": "MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_MinorityInterestInNetIncomeLossOfConsolidatedEntitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Income (Loss) Attributable to Noncontrolling Interest [Abstract]",
        "terseLabel": "NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS"
       }
      }
     },
     "localname": "MinorityInterestInNetIncomeLossOfConsolidatedEntitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MinorityInterestLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Noncontrolling Interest [Line Items]",
        "terseLabel": "NONCONTROLLING INTERESTS"
       }
      }
     },
     "localname": "MinorityInterestLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.",
        "label": "Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners",
        "verboseLabel": "Percentage of common interest held by ECR"
       }
      }
     },
     "localname": "MinorityInterestOwnershipPercentageByNoncontrollingOwners",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_MinorityInterestOwnershipPercentageByParent": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The parent entity's interest in net assets of the subsidiary, expressed as a percentage.",
        "label": "Noncontrolling Interest, Ownership Percentage by Parent",
        "verboseLabel": "Percentage of common interest held by CRC"
       }
      }
     },
     "localname": "MinorityInterestOwnershipPercentageByParent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_MinorityInterestTable": {
     "auth_ref": [
      "r49",
      "r87",
      "r393",
      "r403"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of noncontrolling interest disclosure which includes the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.",
        "label": "Noncontrolling Interest [Table]",
        "terseLabel": "Noncontrolling Interest [Table]"
       }
      }
     },
     "localname": "MinorityInterestTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_MovementInMinorityInterestRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]",
        "terseLabel": "Stockholders' Equity"
       }
      }
     },
     "localname": "MovementInMinorityInterestRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NaturalGasProductionMember": {
     "auth_ref": [
      "r250"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Process of obtaining and processing of flammable gas occurring naturally underground.",
        "label": "Natural Gas, Production [Member]",
        "terseLabel": "Natural gas"
       }
      }
     },
     "localname": "NaturalGasProductionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivities": {
     "auth_ref": [
      "r107"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.",
        "label": "Net Cash Provided by (Used in) Financing Activities",
        "terseLabel": "Net cash provided (used) by financing activities",
        "totalLabel": "Net cash (used) provided by financing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Financing Activities [Abstract]",
        "terseLabel": "CASH FLOW FROM FINANCING ACTIVITIES"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInFinancingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivities": {
     "auth_ref": [
      "r107"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.",
        "label": "Net Cash Provided by (Used in) Investing Activities",
        "terseLabel": "Net cash used in investing activities",
        "totalLabel": "Net cash used in investing activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Investing Activities [Abstract]",
        "terseLabel": "CASH FLOW FROM INVESTING ACTIVITIES"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInInvestingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivities": {
     "auth_ref": [
      "r107",
      "r109",
      "r112"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect",
       "weight": 1.0
      }
     },
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.",
        "label": "Net Cash Provided by (Used in) Operating Activities",
        "terseLabel": "Net cash (used) provided by operating activities",
        "totalLabel": "Net cash provided by operating activities"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Net Cash Provided by (Used in) Operating Activities [Abstract]",
        "terseLabel": "CASH FLOW FROM OPERATING ACTIVITIES"
       }
      }
     },
     "localname": "NetCashProvidedByUsedInOperatingActivitiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NetIncomeLoss": {
     "auth_ref": [
      "r74",
      "r77",
      "r83",
      "r112",
      "r149",
      "r529",
      "r544"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.",
        "label": "Net Income (Loss) Attributable to Parent",
        "totalLabel": "NET (LOSS) INCOME ATTRIBUTABLE TO COMMON STOCK"
       }
      }
     },
     "localname": "NetIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r74",
      "r77",
      "r398",
      "r405"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome": {
       "order": 2.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": -1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of Net Income (Loss) attributable to noncontrolling interest.",
        "label": "Net Income (Loss) Attributable to Noncontrolling Interest",
        "negatedLabel": "Less: Net income attributable to noncontrolling interests",
        "negatedTerseLabel": "Net income attributable to noncontrolling interests",
        "negatedTotalLabel": "Net income attributable to noncontrolling interests"
       }
      }
     },
     "localname": "NetIncomeLossAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic": {
     "auth_ref": [
      "r137",
      "r141"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.",
        "label": "Net Income (Loss) Available to Common Stockholders, Basic",
        "terseLabel": "Net (loss) income available to common stockholders"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted": {
     "auth_ref": [
      "r141",
      "r142"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities, and addition from assumption of issuance of common shares for dilutive potential common shares; of income (loss) available to common shareholders.",
        "label": "Net Income (Loss) Available to Common Stockholders, Diluted",
        "terseLabel": "Net (loss) income available to common stockholders"
       }
      }
     },
     "localname": "NetIncomeLossAvailableToCommonStockholdersDiluted",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest": {
     "auth_ref": [
      "r231",
      "r398",
      "r399"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after income tax of income (loss) including the portion attributable to nonredeemable noncontrolling interest. Excludes the portion attributable to redeemable noncontrolling interest recognized as temporary equity.",
        "label": "Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest",
        "terseLabel": "Net (loss) income"
       }
      }
     },
     "localname": "NetIncomeLossIncludingPortionAttributableToNonredeemableNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "New Accounting Pronouncements and Changes in Accounting Principles [Abstract]"
       }
      }
     },
     "localname": "NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock": {
     "auth_ref": [
      "r139"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items.",
        "label": "New Accounting Pronouncements and Changes in Accounting Principles [Text Block]",
        "terseLabel": "ACCOUNTING AND DISCLOSURE CHANGES"
       }
      }
     },
     "localname": "NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AccountingAndDisclosureChanges"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]",
        "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Line Items]"
       }
      }
     },
     "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AccountingAndDisclosureChangesRecentlyAdoptedAccountingDisclosureChangesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable": {
     "auth_ref": [
      "r136",
      "r138"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Summarization of the changes in an accounting principle or a new accounting pronouncement, including the line items affected by the change and the financial effects of the change on those particular line items.",
        "label": "New Accounting Pronouncements or Change in Accounting Principle [Table]",
        "terseLabel": "New Accounting Pronouncements or Change in Accounting Principle [Table]"
       }
      }
     },
     "localname": "NewAccountingPronouncementsOrChangeInAccountingPrincipleTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AccountingAndDisclosureChangesRecentlyAdoptedAccountingDisclosureChangesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable": {
     "auth_ref": [
      "r87"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_NetIncomeLossAttributableToNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of income (loss) attributable to nonredeemable noncontrolling shareholder, unit holder, partner, or other equity holder of a joint venture.",
        "label": "Noncontrolling Interest in Net Income (Loss) Joint Venture Partners, Nonredeemable",
        "negatedTerseLabel": "Equity",
        "terseLabel": "Net (loss) income attributable to noncontrolling interests"
       }
      }
     },
     "localname": "NoncontrollingInterestInNetIncomeLossJointVenturePartnersNonredeemable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoncontrollingInterestInNetIncomeLossJointVenturePartnersRedeemable": {
     "auth_ref": [
      "r87"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_NetIncomeLossAttributableToNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of income (loss) attributable to redeemable noncontrolling shareholder, unit holder, partner, or other equity holder of a joint venture.",
        "label": "Noncontrolling Interest in Net Income (Loss) Joint Venture Partners, Redeemable",
        "negatedTerseLabel": "Mezzanine equity",
        "verboseLabel": "Net (loss) income attributable to noncontrolling interests"
       }
      }
     },
     "localname": "NoncontrollingInterestInNetIncomeLossJointVenturePartnersRedeemable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest": {
     "auth_ref": [
      "r240",
      "r396",
      "r400"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in noncontrolling interest from sale of a portion of the parent's controlling interest.",
        "label": "Noncontrolling Interest, Increase from Sale of Parent Equity Interest",
        "terseLabel": "Contribution from noncontrolling interest holders, net"
       }
      }
     },
     "localname": "NoncontrollingInterestIncreaseFromSaleOfParentEquityInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NoncontrollingInterestMember": {
     "auth_ref": [
      "r392"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "This element represents that portion of equity (net assets) in a subsidiary not attributable, directly or indirectly, to the parent. A noncontrolling interest is sometimes called a minority interest.",
        "label": "Noncontrolling Interest [Member]",
        "terseLabel": "Equity Attributable to Noncontrolling Interests",
        "verboseLabel": "Noncontrolling Interest"
       }
      }
     },
     "localname": "NoncontrollingInterestMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_NonoperatingIncomeExpense": {
     "auth_ref": [
      "r90"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_ProfitLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).",
        "label": "Nonoperating Income (Expense)",
        "terseLabel": "Non-operating (loss) income"
       }
      }
     },
     "localname": "NonoperatingIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_NonoperatingIncomeExpenseAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Nonoperating Income (Expense) [Abstract]",
        "terseLabel": "NON-OPERATING (LOSS) INCOME"
       }
      }
     },
     "localname": "NonoperatingIncomeExpenseAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OffsettingAssetsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Offsetting Assets [Line Items]",
        "terseLabel": "Fair Value of Derivatives"
       }
      }
     },
     "localname": "OffsettingAssetsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OffsettingAssetsTable": {
     "auth_ref": [
      "r59",
      "r60"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about derivative and financial assets that are subject to offsetting, including enforceable master netting arrangements.",
        "label": "Offsetting Assets [Table]",
        "terseLabel": "Offsetting Assets [Table]"
       }
      }
     },
     "localname": "OffsettingAssetsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OilAndCondensateMember": {
     "auth_ref": [
      "r250"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Viscous liquid derived from petroleum and product of conversion of gas into liquid during production.",
        "label": "Oil and Condensate [Member]",
        "terseLabel": "Oil"
       }
      }
     },
     "localname": "OilAndCondensateMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OperatingIncomeLoss": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net result for the period of deducting operating expenses from operating revenues.",
        "label": "Operating Income (Loss)",
        "totalLabel": "OPERATING INCOME"
       }
      }
     },
     "localname": "OperatingIncomeLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseCost": {
     "auth_ref": [
      "r466",
      "r475"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.",
        "label": "Operating Lease, Cost",
        "terseLabel": "Operating lease cost"
       }
      }
     },
     "localname": "OperatingLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseImpairmentLoss": {
     "auth_ref": [
      "r461"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of loss from impairment of right-of-use asset from operating lease.",
        "label": "Operating Lease, Impairment Loss",
        "terseLabel": "Impairment on right-of-use asset"
       }
      }
     },
     "localname": "OperatingLeaseImpairmentLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Lessee, Operating Lease, Liability, Payment, Due [Abstract]",
        "terseLabel": "Operating lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiabilitiesPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLeaseLiability": {
     "auth_ref": [
      "r463"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease.",
        "label": "Operating Lease, Liability",
        "terseLabel": "Operating lease liability",
        "verboseLabel": "Present value of lease liabilities"
       }
      }
     },
     "localname": "OperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AccountingAndDisclosureChangesRecentlyAdoptedAccountingDisclosureChangesDetails",
      "http://www.oxy.com/role/LeasesFinanceLeaseLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityCurrent": {
     "auth_ref": [
      "r463"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails": {
       "order": 1.0,
       "parentTag": "crc_TotalLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.",
        "label": "Operating Lease, Liability, Current",
        "terseLabel": "Operating lease"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseLiabilityNoncurrent": {
     "auth_ref": [
      "r463"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails": {
       "order": 3.0,
       "parentTag": "crc_TotalLeaseLiability",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.",
        "label": "Operating Lease, Liability, Noncurrent",
        "terseLabel": "Operating lease"
       }
      }
     },
     "localname": "OperatingLeaseLiabilityNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasePayments": {
     "auth_ref": [
      "r464",
      "r469"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.",
        "label": "Operating Lease, Payments",
        "verboseLabel": "Operating cash flows"
       }
      }
     },
     "localname": "OperatingLeasePayments",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseRightOfUseAsset": {
     "auth_ref": [
      "r462"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails": {
       "order": 1.0,
       "parentTag": "crc_LeasesRightofUseAsset",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of lessee's right to use underlying asset under operating lease.",
        "label": "Operating Lease, Right-of-Use Asset",
        "terseLabel": "ROU asset obtained in exchange for lease obligations",
        "verboseLabel": "Operating lease, net"
       }
      }
     },
     "localname": "OperatingLeaseRightOfUseAsset",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AccountingAndDisclosureChangesRecentlyAdoptedAccountingDisclosureChangesDetails",
      "http://www.oxy.com/role/LeasesSupplementBalanceSheetInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent": {
     "auth_ref": [
      "r472",
      "r475"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average discount rate for operating lease calculated at point in time.",
        "label": "Operating Lease, Weighted Average Discount Rate, Percent",
        "terseLabel": "Weighted-average discount rate"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageDiscountRatePercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1": {
     "auth_ref": [
      "r471",
      "r475"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Operating Lease, Weighted Average Remaining Lease Term",
        "terseLabel": "Weighted-average remaining lease term (in years)"
       }
      }
     },
     "localname": "OperatingLeaseWeightedAverageRemainingLeaseTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDue": {
     "auth_ref": [
      "r456",
      "r458"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.",
        "label": "Operating Leases, Future Minimum Payments Due",
        "totalLabel": "Total"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]",
        "verboseLabel": "Noncancelable operating leases"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent": {
     "auth_ref": [
      "r456",
      "r458"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments Due, Next Twelve Months",
        "terseLabel": "2019"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears": {
     "auth_ref": [
      "r456",
      "r458"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due in Five Years",
        "terseLabel": "2023"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInFiveYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears": {
     "auth_ref": [
      "r456",
      "r458"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due in Four Years",
        "terseLabel": "2022"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInFourYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears": {
     "auth_ref": [
      "r456",
      "r458"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due in Three Years",
        "terseLabel": "2021"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInThreeYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears": {
     "auth_ref": [
      "r456",
      "r458"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due in Two Years",
        "terseLabel": "2020"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueInTwoYears",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesFutureMinimumPaymentsDueThereafter": {
     "auth_ref": [
      "r456",
      "r458"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_OperatingLeasesFutureMinimumPaymentsDue",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.",
        "label": "Operating Leases, Future Minimum Payments, Due Thereafter",
        "terseLabel": "Thereafter"
       }
      }
     },
     "localname": "OperatingLeasesFutureMinimumPaymentsDueThereafter",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLeasesRentExpenseNet": {
     "auth_ref": [
      "r457"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.",
        "label": "Operating Leases, Rent Expense, Net",
        "verboseLabel": "Rental expense for operating leases"
       }
      }
     },
     "localname": "OperatingLeasesRentExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesNoncancelableOperatingLeasesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLossCarryforwards": {
     "auth_ref": [
      "r370"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.",
        "label": "Operating Loss Carryforwards",
        "terseLabel": "Net operating loss carryforwards"
       }
      }
     },
     "localname": "OperatingLossCarryforwards",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OperatingLossCarryforwardsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Operating Loss Carryforwards [Line Items]",
        "terseLabel": "Operating Loss Carryforwards [Line Items]"
       }
      }
     },
     "localname": "OperatingLossCarryforwardsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OperatingLossCarryforwardsTable": {
     "auth_ref": [
      "r371"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule reflecting pertinent information, such as tax authority, amounts, and expiration dates, of net operating loss carryforwards, including an assessment of the likelihood of utilization.",
        "label": "Operating Loss Carryforwards [Table]",
        "terseLabel": "Operating Loss Carryforwards [Table]"
       }
      }
     },
     "localname": "OperatingLossCarryforwardsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock": {
     "auth_ref": [
      "r135",
      "r139",
      "r166",
      "r408"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for the general note to the financial statements for the reporting entity which may include, descriptions of the basis of presentation, business description, significant accounting policies, consolidations, reclassifications, new pronouncements not yet adopted and changes in accounting principles.",
        "label": "Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]",
        "verboseLabel": "NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER"
       }
      }
     },
     "localname": "OrganizationConsolidationBasisOfPresentationBusinessDescriptionAndAccountingPoliciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOther"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_OtherAccruedLiabilitiesCurrent": {
     "auth_ref": [
      "r6",
      "r7",
      "r8",
      "r43"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails": {
       "order": 5.0,
       "parentTag": "us-gaap_AccruedLiabilitiesCurrent",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.",
        "label": "Other Accrued Liabilities, Current",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "OtherAccruedLiabilitiesCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsCurrent": {
     "auth_ref": [
      "r54"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_AssetsCurrent",
       "weight": 1.0
      },
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of current assets classified as other.",
        "label": "Other Assets, Current",
        "terseLabel": "Other current assets, net",
        "totalLabel": "Other current assets, net"
       }
      }
     },
     "localname": "OtherAssetsCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsMember": {
     "auth_ref": [
      "r417",
      "r433"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing other assets.",
        "label": "Other Assets [Member]",
        "terseLabel": "Other assets"
       }
      }
     },
     "localname": "OtherAssetsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherAssetsMiscellaneousCurrent": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_OtherAssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of other miscellaneous assets expected to be realized or consumed within one year or operating cycle, if longer.",
        "label": "Other Assets, Miscellaneous, Current",
        "terseLabel": "Other"
       }
      }
     },
     "localname": "OtherAssetsMiscellaneousCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherAssetsNoncurrent": {
     "auth_ref": [
      "r40"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 3.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of noncurrent assets classified as other.",
        "label": "Other Assets, Noncurrent",
        "terseLabel": "OTHER ASSETS"
       }
      }
     },
     "localname": "OtherAssetsNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherCapitalizedPropertyPlantAndEquipmentMember": {
     "auth_ref": [
      "r191"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "All other long term capitalized assets related to property plant and equipment not otherwise previously categorized.",
        "label": "Other Capitalized Property Plant and Equipment [Member]",
        "terseLabel": "Other non- producing property and equipment"
       }
      }
     },
     "localname": "OtherCapitalizedPropertyPlantAndEquipmentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent": {
     "auth_ref": [
      "r394",
      "r395",
      "r401"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive (income) loss for defined benefit plan, attributable to parent entity.",
        "label": "Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent",
        "totalLabel": "Total recognized in other comprehensive income (loss)"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent": {
     "auth_ref": [
      "r75",
      "r78",
      "r394",
      "r395",
      "r401"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome": {
       "order": 3.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after tax of other comprehensive income (loss) attributable to parent entity.",
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent",
        "totalLabel": "Total other comprehensive income (loss)",
        "verboseLabel": "Other comprehensive income (loss)"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome",
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]",
        "terseLabel": "Other comprehensive income (loss) items:"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax": {
     "auth_ref": [
      "r66",
      "r69",
      "r281"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentBeforeTaxPortionAttributableToParent",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.",
        "label": "Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax",
        "negatedLabel": "Net actuarial (loss) gain"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax": {
     "auth_ref": [
      "r65",
      "r70"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).",
        "label": "Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax",
        "terseLabel": "Pension and postretirement losses, tax"
       }
      }
     },
     "localname": "OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncomeParenthetical"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherCurrentAssetsMember": {
     "auth_ref": [
      "r417",
      "r433"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing other current assets.",
        "label": "Other Current Assets [Member]",
        "terseLabel": "Other current assets"
       }
      }
     },
     "localname": "OtherCurrentAssetsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherInventorySupplies": {
     "auth_ref": [
      "r51"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherInventoriesDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_InventoryNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before valuation and LIFO reserves of other supplies used within the manufacturing or production process expected to be consumed within one year or operating cycle, if longer.",
        "label": "Other Inventory, Supplies, Gross",
        "terseLabel": "Materials and supplies"
       }
      }
     },
     "localname": "OtherInventorySupplies",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherInventoriesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherLiabilitiesNoncurrent": {
     "auth_ref": [
      "r47"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 4.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer.",
        "label": "Other Liabilities, Noncurrent",
        "terseLabel": "OTHER LONG-TERM LIABILITIES"
       }
      }
     },
     "localname": "OtherLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNoncashIncomeExpense": {
     "auth_ref": [
      "r112"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of income (expense) included in net income that results in no cash inflow (outflow), classified as other.",
        "label": "Other Noncash Income (Expense)",
        "negatedLabel": "Other non-cash charges to income, net"
       }
      }
     },
     "localname": "OtherNoncashIncomeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherNoncurrentLiabilitiesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Primary financial statement caption encompassing other noncurrent liabilities.",
        "label": "Other Noncurrent Liabilities [Member]",
        "terseLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "OtherNoncurrentLiabilitiesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_OtherNonoperatingExpense": {
     "auth_ref": [
      "r91"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 5.0,
       "parentTag": "us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
       "weight": -1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense related to nonoperating activities, classified as other.",
        "label": "Other Nonoperating Expense",
        "negatedTerseLabel": "Other non-operating expenses"
       }
      }
     },
     "localname": "OtherNonoperatingExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherOperatingIncome": {
     "auth_ref": [
      "r86"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_Revenues",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation.",
        "label": "Other Operating Income",
        "terseLabel": "Other revenue"
       }
      }
     },
     "localname": "OtherOperatingIncome",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherOperatingIncomeExpenseNet": {
     "auth_ref": [],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 6.0,
       "parentTag": "crc_CostsAndOtherDeductions",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.",
        "label": "Other Operating Income (Expense), Net",
        "negatedLabel": "Other expenses, net"
       }
      }
     },
     "localname": "OtherOperatingIncomeExpenseNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember": {
     "auth_ref": [
      "r255",
      "r288",
      "r289",
      "r303"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Plan designed to provide other postretirement benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes pension benefits.",
        "label": "Other Postretirement Benefits Plan [Member]",
        "verboseLabel": "Postretirement Benefits"
       }
      }
     },
     "localname": "OtherPostretirementBenefitPlansDefinedBenefitMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ParentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Portion of equity, or net assets, in the consolidated entity attributable, directly or indirectly, to the parent. Excludes noncontrolling interests.",
        "label": "Parent [Member]",
        "terseLabel": "Equity Attributable to Common Stock",
        "verboseLabel": "Parent"
       }
      }
     },
     "localname": "ParentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedCashFlowStatementDetails",
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PaymentsForProceedsFromOtherInvestingActivities": {
     "auth_ref": [
      "r93",
      "r96",
      "r132"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash (inflow) outflow from investing activities classified as other.",
        "label": "Payments for (Proceeds from) Other Investing Activities",
        "negatedLabel": "Other"
       }
      }
     },
     "localname": "PaymentsForProceedsFromOtherInvestingActivities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDebtExtinguishmentCosts": {
     "auth_ref": [
      "r103"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 10.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.",
        "label": "Payment for Debt Extinguishment or Debt Prepayment Cost",
        "negatedLabel": "Debt transaction costs"
       }
      }
     },
     "localname": "PaymentsOfDebtExtinguishmentCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDebtIssuanceCosts": {
     "auth_ref": [
      "r102"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.",
        "label": "Payments of Debt Issuance Costs",
        "verboseLabel": "Transaction costs"
       }
      }
     },
     "localname": "PaymentsOfDebtIssuanceCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDerivativeIssuanceCosts": {
     "auth_ref": [
      "r104"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for cost incurred directly with the issuance of a derivative security.",
        "label": "Payments of Derivative Issuance Costs",
        "verboseLabel": "Payments received"
       }
      }
     },
     "localname": "PaymentsOfDerivativeIssuanceCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsOfDividendsMinorityInterest": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 4.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests.",
        "label": "Payments of Ordinary Dividends, Noncontrolling Interest",
        "negatedLabel": "Distributions paid to noncontrolling interest holders"
       }
      }
     },
     "localname": "PaymentsOfDividendsMinorityInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation": {
     "auth_ref": [
      "r100"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 7.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow to satisfy grantee's tax withholding obligation for award under share-based payment arrangement.",
        "label": "Payment, Tax Withholding, Share-based Payment Arrangement",
        "negatedLabel": "Shares canceled for taxes"
       }
      }
     },
     "localname": "PaymentsRelatedToTaxWithholdingForShareBasedCompensation",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquireBusinessesGross": {
     "auth_ref": [
      "r94",
      "r388"
     ],
     "calculation": {
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_BusinessCombinationConsiderationTransferred1",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.",
        "label": "Payments to Acquire Businesses, Gross",
        "verboseLabel": "Cash"
       }
      }
     },
     "localname": "PaymentsToAcquireBusinessesGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PaymentsToAcquirePropertyPlantAndEquipment": {
     "auth_ref": [
      "r95"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.",
        "label": "Payments to Acquire Property, Plant, and Equipment",
        "negatedLabel": "Capital investments"
       }
      }
     },
     "localname": "PaymentsToAcquirePropertyPlantAndEquipment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock": {
     "auth_ref": [
      "r304"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for pension and other postretirement benefits.",
        "label": "Pension and Other Postretirement Benefits Disclosure [Text Block]",
        "terseLabel": "PENSION AND POSTRETIREMENT BENEFIT PLANS"
       }
      }
     },
     "localname": "PensionAndOtherPostretirementBenefitsDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlans"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities": {
     "auth_ref": [
      "r16",
      "r256",
      "r257",
      "r268"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.",
        "label": "Liability, Defined Benefit Plan, Current",
        "negatedLabel": "Accrued liabilities"
       }
      }
     },
     "localname": "PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent": {
     "auth_ref": [
      "r19",
      "r256",
      "r257",
      "r268"
     ],
     "calculation": {
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as noncurrent.",
        "label": "Liability, Defined Benefit Plan, Noncurrent",
        "negatedLabel": "Other long-term liabilities"
       }
      }
     },
     "localname": "PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PensionPlansDefinedBenefitMember": {
     "auth_ref": [
      "r254",
      "r288",
      "r289",
      "r303"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Plan designed to provide participant with pension benefits. Includes, but is not limited to, defined benefit and defined contribution plans. Excludes other postretirement benefits.",
        "label": "Pension Plan [Member]",
        "terseLabel": "Pension Benefits"
       }
      }
     },
     "localname": "PensionPlansDefinedBenefitMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedBenefitPlanDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PlanAssetCategoriesDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Defined benefit plan asset investment.",
        "label": "Defined Benefit Plan, Plan Assets, Category [Domain]",
        "terseLabel": "Defined Benefit Plan, Plan Assets, Category [Domain]"
       }
      }
     },
     "localname": "PlanAssetCategoriesDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PlanNameAxis": {
     "auth_ref": [
      "r308",
      "r338"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by plan name for share-based payment arrangement.",
        "label": "Plan Name [Axis]",
        "terseLabel": "Plan Name [Axis]"
       }
      }
     },
     "localname": "PlanNameAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails",
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PlanNameDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Plan name for share-based payment arrangement.",
        "label": "Plan Name [Domain]",
        "terseLabel": "Plan Name [Domain]"
       }
      }
     },
     "localname": "PlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails",
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PortionAtFairValueFairValueDisclosureMember": {
     "auth_ref": [
      "r443"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Measured at fair value for financial reporting purposes.",
        "label": "Portion at Fair Value Measurement [Member]",
        "terseLabel": "Portion at Fair Value Measurement"
       }
      }
     },
     "localname": "PortionAtFairValueFairValueDisclosureMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesFairValueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PositionAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by position taken for a security.",
        "label": "Position [Axis]",
        "terseLabel": "Position [Axis]"
       }
      }
     },
     "localname": "PositionAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PositionDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicates position taken for a security.",
        "label": "Position [Domain]",
        "terseLabel": "Position [Domain]"
       }
      }
     },
     "localname": "PositionDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PreferredStockParOrStatedValuePerShare": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.",
        "label": "Preferred Stock, Par or Stated Value Per Share",
        "terseLabel": "Preferred stock, par value (in dollars per share)"
       }
      }
     },
     "localname": "PreferredStockParOrStatedValuePerShare",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheetsParenthetical",
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_PreferredStockSharesAuthorized": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.",
        "label": "Preferred Stock, Shares Authorized",
        "terseLabel": "Preferred stock, authorized shares"
       }
      }
     },
     "localname": "PreferredStockSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheetsParenthetical",
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockSharesOutstanding": {
     "auth_ref": [
      "r23"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.",
        "label": "Preferred Stock, Shares Outstanding",
        "terseLabel": "Preferred stock, outstanding shares"
       }
      }
     },
     "localname": "PreferredStockSharesOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheetsParenthetical",
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_PreferredStockValue": {
     "auth_ref": [
      "r23"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 1.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity.",
        "label": "Preferred Stock, Value, Issued",
        "terseLabel": "Preferred stock (20 million shares authorized at $0.01 par value); no shares outstanding at December 31, 2019 or 2018"
       }
      }
     },
     "localname": "PreferredStockValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PrepaidExpenseCurrent": {
     "auth_ref": [
      "r2",
      "r4",
      "r190"
     ],
     "calculation": {
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_OtherAssetsCurrent",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of asset related to consideration paid in advance for costs that provide economic benefits within a future period of one year or the normal operating cycle, if longer.",
        "label": "Prepaid Expense, Current",
        "terseLabel": "Prepaid expenses"
       }
      }
     },
     "localname": "PrepaidExpenseCurrent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfCommonStock": {
     "auth_ref": [
      "r97"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 8.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from the additional capital contribution to the entity.",
        "label": "Proceeds from Issuance of Common Stock",
        "terseLabel": "Issuance of common stock"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfCommonStock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfDebt": {
     "auth_ref": [
      "r98"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.",
        "label": "Proceeds from Issuance of Debt",
        "terseLabel": "Net proceeds from issuance of senior notes used to make cash distribution to Occidental"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfLongTermDebt": {
     "auth_ref": [
      "r98"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.",
        "label": "Proceeds from Issuance of Long-term Debt",
        "terseLabel": "Proceeds from 2017 Term Loan"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfLongTermDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromIssuanceOfPrivatePlacement": {
     "auth_ref": [
      "r97"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.",
        "label": "Proceeds from Issuance of Private Placement",
        "terseLabel": "Purchase price of the CRC shares issued to Ares-led investor group in a private placement"
       }
      }
     },
     "localname": "ProceedsFromIssuanceOfPrivatePlacement",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromLinesOfCredit": {
     "auth_ref": [
      "r98",
      "r125"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 6.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.",
        "label": "Proceeds from Lines of Credit",
        "terseLabel": "Proceeds from 2014 Revolving Credit Facility"
       }
      }
     },
     "localname": "ProceedsFromLinesOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromMinorityShareholders": {
     "auth_ref": [
      "r99"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 5.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash inflow from a noncontrolling interest. Includes, but is not limited to, purchase of additional shares or other increase in noncontrolling interest ownership.",
        "label": "Proceeds from Noncontrolling Interests",
        "terseLabel": "Contributions from noncontrolling interest holders, net",
        "verboseLabel": "Net proceeds received by CRC from the transaction"
       }
      }
     },
     "localname": "ProceedsFromMinorityShareholders",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProceedsFromSaleOfProductiveAssets": {
     "auth_ref": [
      "r92"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInInvestingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.",
        "label": "Proceeds from Sale of Productive Assets",
        "netLabel": "Proceeds from sale of non-core assets",
        "terseLabel": "Asset divestitures"
       }
      }
     },
     "localname": "ProceedsFromSaleOfProductiveAssets",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresDivestituresDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProductionCosts": {
     "auth_ref": [
      "r495"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "crc_CostsAndOtherDeductions",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The capitalized costs incurred during the period (excluded from amortization) to operate and maintain wells and related equipment and facilities, including depreciation and applicable operating costs of support equipment and facilities and other costs of operating and maintaining those wells and related equipment and facilities. They become part of the cost of oil and gas produced. Examples of production costs (sometimes called lifting costs) are: costs of labor to operate the wells and related equipment and facilities; repairs and maintenance; materials, supplies, and fuel consumed and supplies utilized in operating the wells and related equipment and facilities; property taxes and insurance applicable to proved properties and wells and related equipment and facilities; severance taxes; some support equipment or facilities may serve two or more oil and gas producing activities and may also serve transportation, refining, and marketing activities. To the extent that the support equipment and facilities are used in oil and gas producing activities, their depreciation and applicable operating costs become exploration, development or production costs, as appropriate. Depreciation, depletion, and amortization of capitalized acquisition, exploration, and development costs are not production costs but also become part of the cost of oil and gas produced along with production (lifting) costs identified above.",
        "label": "Production Costs, Period Cost",
        "terseLabel": "Production costs"
       }
      }
     },
     "localname": "ProductionCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProfitLoss": {
     "auth_ref": [
      "r74",
      "r77",
      "r106",
      "r171",
      "r175",
      "r394",
      "r397",
      "r399",
      "r405",
      "r406"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails": {
       "order": null,
       "parentTag": null,
       "root": true,
       "weight": null
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 1.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome": {
       "order": 1.0,
       "parentTag": "us-gaap_ComprehensiveIncomeNetOfTax",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "us-gaap_NetIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.",
        "label": "Net Income (Loss), Including Portion Attributable to Noncontrolling Interest",
        "terseLabel": "Net income (loss)",
        "totalLabel": "NET INCOME (LOSS)"
       }
      }
     },
     "localname": "ProfitLoss",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.oxy.com/role/ConsolidatedStatementsOfComprehensiveIncome",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ProjectMember": {
     "auth_ref": [
      "r504"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Planned program of work.",
        "label": "Project [Domain]",
        "terseLabel": "Project [Domain]"
       }
      }
     },
     "localname": "ProjectMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Property, Plant and Equipment [Abstract]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentByTypeAxis": {
     "auth_ref": [
      "r39",
      "r193"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of long-lived, physical assets used to produce goods and services and not intended for resale.",
        "label": "Property, Plant and Equipment, Type [Axis]",
        "terseLabel": "Property, Plant and Equipment, Type [Axis]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentByTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock": {
     "auth_ref": [
      "r196"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, accounting policies and methodology, roll forwards, depreciation, depletion and amortization expense, including composite depreciation, accumulated depreciation, depletion and amortization expense, useful lives and method used, income statement disclosures, assets held for sale and public utility disclosures.",
        "label": "Property, Plant and Equipment Disclosure [Text Block]",
        "terseLabel": "PROPERTY, PLANT AND EQUIPMENT"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipment"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentGross": {
     "auth_ref": [
      "r38",
      "r191"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_PropertyPlantAndEquipmentNet",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Property, Plant and Equipment, Gross",
        "terseLabel": "PROPERTY, PLANT AND EQUIPMENT",
        "verboseLabel": "Total property, plant and equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Property, Plant and Equipment [Line Items]",
        "netLabel": "Property, Plant and Equipment [Line Items]",
        "terseLabel": "Property, Plant and Equipment",
        "verboseLabel": "ACQUISITIONS AND DIVESTITURES"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Property, Plant and Equipment [Member]",
        "terseLabel": "Property, Plant and Equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNet": {
     "auth_ref": [
      "r12",
      "r13",
      "r193",
      "r542"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_Assets",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.",
        "label": "Property, Plant and Equipment, Net",
        "terseLabel": "Total property, plant and equipment, net",
        "totalLabel": "Total property, plant and equipment, net"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNet",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentNetAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Property, Plant and Equipment, Net [Abstract]",
        "terseLabel": "Property, Plant and Equipment, Net [Abstract]",
        "verboseLabel": "Property, Plant and Equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentNetAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentPolicyTextBlock": {
     "auth_ref": [
      "r36",
      "r117",
      "r193"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for long-lived, physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, basis of assets, depreciation and depletion methods used, including composite deprecation, estimated useful lives, capitalization policy, accounting treatment for costs incurred for repairs and maintenance, capitalized interest and the method it is calculated, disposals and impairments.",
        "label": "Property, Plant and Equipment, Policy [Policy Text Block]",
        "terseLabel": "Property, Plant and Equipment"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTextBlock": {
     "auth_ref": [
      "r12",
      "r193"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
        "label": "Property, Plant and Equipment [Table Text Block]",
        "terseLabel": "Schedule of property, plant and equipment, net"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentTypeDomain": {
     "auth_ref": [
      "r12",
      "r191"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Listing of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.",
        "label": "Property, Plant and Equipment, Type [Domain]",
        "terseLabel": "Property, Plant and Equipment, Type [Domain]"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PropertyPlantAndEquipmentUsefulLife": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.",
        "label": "Property, Plant and Equipment, Useful Life",
        "terseLabel": "Expected useful lives"
       }
      }
     },
     "localname": "PropertyPlantAndEquipmentUsefulLife",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_PublicUtilitiesInventoryPropaneMember": {
     "auth_ref": [
      "r31",
      "r250"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Heavy, colorless, gaseous alkane occurring naturally in petroleum and natural gas.",
        "label": "Propane [Member]",
        "terseLabel": "NGLs"
       }
      }
     },
     "localname": "PublicUtilitiesInventoryPropaneMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_PublicUtilityAxis": {
     "auth_ref": [
      "r37"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of utility plant.",
        "label": "Public Utility [Axis]",
        "terseLabel": "Public Utility [Axis]"
       }
      }
     },
     "localname": "PublicUtilityAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_PutOptionMember": {
     "auth_ref": [
      "r555"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A financial contract between two parties, the buyer and the seller (writer) of the option, where the buyer has the right but not the obligation to sell a commodity or financial instrument (the underlying instrument) to the seller (writer) at a certain time for a certain price (the strike price). The seller (writer) has the obligation to purchase the underlying asset at that strike price, if the buyer exercises the option.",
        "label": "Put Option [Member]",
        "terseLabel": "Puts"
       }
      }
     },
     "localname": "PutOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves": {
     "auth_ref": [
      "r502"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Previously capitalized costs of the drilling of wells that were reclassified as part of the costs of the enterprise's wells and related equipment and facilities at the time that proved reserves were found.",
        "label": "Reclassification to Well, Facilities, and Equipment Based on Determination of Proved Reserves",
        "negatedLabel": "Reclassification to property, plant and equipment"
       }
      }
     },
     "localname": "ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]",
        "terseLabel": "Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]"
       }
      }
     },
     "localname": "ReconciliationOfUnrecognizedTaxBenefitsExcludingAmountsPertainingToExaminedTaxReturnsRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RedeemableNoncontrollingInterestByLegalEntityTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity.",
        "label": "Redeemable Noncontrolling Interest, by Legal Entity [Table]",
        "terseLabel": "Redeemable Noncontrolling Interest, by Legal Entity [Table]"
       }
      }
     },
     "localname": "RedeemableNoncontrollingInterestByLegalEntityTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmount": {
     "auth_ref": [
      "r229",
      "r230",
      "r232",
      "r233"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 6.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 5.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.",
        "label": "Redeemable Noncontrolling Interest, Equity, Carrying Amount",
        "periodEndLabel": "Balance",
        "periodStartLabel": "Balance",
        "terseLabel": "Redeemable noncontrolling interests",
        "verboseLabel": "Mezzanine equity"
       }
      }
     },
     "localname": "RedeemableNoncontrollingInterestEquityCarryingAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RedeemableNoncontrollingInterestEquityCarryingAmountAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract]",
        "terseLabel": "MEZZANINE EQUITY"
       }
      }
     },
     "localname": "RedeemableNoncontrollingInterestEquityCarryingAmountAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyDomain": {
     "auth_ref": [
      "r485"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Related parties include affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.",
        "label": "Related Party [Domain]",
        "terseLabel": "Related Party [Domain]"
       }
      }
     },
     "localname": "RelatedPartyDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RelatedPartyTransactionLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Related Party Transaction [Line Items]",
        "terseLabel": "Related Party Transaction [Line Items]"
       }
      }
     },
     "localname": "RelatedPartyTransactionLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RelatedPartyTransactionsByRelatedPartyAxis": {
     "auth_ref": [
      "r287",
      "r478",
      "r480",
      "r498",
      "r499",
      "r505",
      "r506",
      "r508",
      "r509",
      "r510",
      "r511",
      "r512",
      "r513",
      "r514",
      "r515"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of related party. Related parties include, but not limited to, affiliates; other entities for which investments are accounted for by the equity method by the entity; trusts for benefit of employees; and principal owners, management, and members of immediate families. It also may include other parties with which the entity may control or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests.",
        "label": "Related Party [Axis]",
        "terseLabel": "Related Party [Axis]"
       }
      }
     },
     "localname": "RelatedPartyTransactionsByRelatedPartyAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RentalIncomeNonoperating": {
     "auth_ref": [
      "r90"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature.",
        "label": "Rental Income, Nonoperating",
        "terseLabel": "Rental income received"
       }
      }
     },
     "localname": "RentalIncomeNonoperating",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RepaymentsOfBankDebt": {
     "auth_ref": [
      "r101"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow to settle a bank borrowing during the year.",
        "label": "Repayments of Bank Debt",
        "verboseLabel": "Payment of bank debt"
       }
      }
     },
     "localname": "RepaymentsOfBankDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2017CreditAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RepaymentsOfLinesOfCredit": {
     "auth_ref": [
      "r101",
      "r125"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 9.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.",
        "label": "Repayments of Lines of Credit",
        "negatedLabel": "Repayments of 2014 Revolving Credit Facility",
        "terseLabel": "Proceeds used to repay 2014 revolving credit facility"
       }
      }
     },
     "localname": "RepaymentsOfLinesOfCredit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RepaymentsOfSeniorDebt": {
     "auth_ref": [
      "r101"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 3.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.",
        "label": "Repayments of Senior Debt",
        "negatedLabel": "Payments on 2014 Term Loan"
       }
      }
     },
     "localname": "RepaymentsOfSeniorDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RepaymentsOfSubordinatedDebt": {
     "auth_ref": [
      "r101"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 2.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInFinancingActivities",
       "weight": -1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral.",
        "label": "Repayments of Subordinated Debt",
        "negatedLabel": "Debt repurchases"
       }
      }
     },
     "localname": "RepaymentsOfSubordinatedDebt",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedCashAndCashEquivalents": {
     "auth_ref": [
      "r10",
      "r113",
      "r115",
      "r520",
      "r538"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.",
        "label": "Restricted Cash and Cash Equivalents",
        "verboseLabel": "Cash restricted under our joint venture agreements"
       }
      }
     },
     "localname": "RestrictedCashAndCashEquivalents",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherCashDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestrictedStockMember": {
     "auth_ref": [
      "r148"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met.",
        "label": "Restricted Stock [Member]",
        "terseLabel": "Restricted Stock"
       }
      }
     },
     "localname": "RestrictedStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RestructuringAndRelatedCostIncurredCost": {
     "auth_ref": [
      "r206",
      "r207",
      "r211",
      "r212"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost.",
        "label": "Restructuring and Related Cost, Incurred Cost",
        "terseLabel": "Incurred cost"
       }
      }
     },
     "localname": "RestructuringAndRelatedCostIncurredCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RestructuringCostAndReserveAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of restructuring cost.",
        "label": "Restructuring Type [Axis]",
        "terseLabel": "Restructuring Type [Axis]"
       }
      }
     },
     "localname": "RestructuringCostAndReserveAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RestructuringCostAndReserveLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Restructuring Cost and Reserve [Line Items]",
        "terseLabel": "Restructuring Cost and Reserve [Line Items]"
       }
      }
     },
     "localname": "RestructuringCostAndReserveLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ResultsOfOperationsDryHoleCosts": {
     "auth_ref": [
      "r507",
      "r516"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows": {
       "order": 13.0,
       "parentTag": "us-gaap_NetCashProvidedByUsedInOperatingActivities",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Dry hole costs from oil and gas producing activities.",
        "label": "Results of Operations, Dry Hole Costs",
        "terseLabel": "Dry hole expenses"
       }
      }
     },
     "localname": "ResultsOfOperationsDryHoleCosts",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfCashFlows"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsAccumulatedDeficit": {
     "auth_ref": [
      "r27",
      "r239",
      "r539"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 4.0,
       "parentTag": "us-gaap_StockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings (Accumulated Deficit)",
        "terseLabel": "Accumulated deficit"
       }
      }
     },
     "localname": "RetainedEarningsAccumulatedDeficit",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RetainedEarningsMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The cumulative amount of the reporting entity's undistributed earnings or deficit.",
        "label": "Retained Earnings [Member]",
        "terseLabel": "Accumulated (Deficit) Earnings"
       }
      }
     },
     "localname": "RetainedEarningsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RetirementPlanTypeAxis": {
     "auth_ref": [
      "r254",
      "r255",
      "r288",
      "r289",
      "r303"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of retirement benefit plan. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement.",
        "label": "Retirement Plan Type [Axis]",
        "terseLabel": "Retirement Plan Type [Axis]"
       }
      }
     },
     "localname": "RetirementPlanTypeAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedBenefitPlanDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RetirementPlanTypeDomain": {
     "auth_ref": [
      "r254",
      "r255",
      "r288",
      "r289",
      "r303"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Type of plan designed to provide participants with retirement benefits. Includes, but is not limited to, retirement benefit arrangement for defined benefit pension and other postretirement plans, retirement benefit arrangement for defined contribution pension and other postretirement plans, and special and contractual termination benefits payable upon retirement.",
        "label": "Retirement Plan Type [Domain]",
        "terseLabel": "Retirement Plan Type [Domain]"
       }
      }
     },
     "localname": "RetirementPlanTypeDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedBenefitPlanDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Revenue from Contract with Customer [Abstract]"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax": {
     "auth_ref": [
      "r247",
      "r248"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_Revenues",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.",
        "label": "Revenue from Contract with Customer, Excluding Assessed Tax",
        "terseLabel": "Revenue from contract with customers",
        "verboseLabel": "Oil and natural gas sales"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerExcludingAssessedTax",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenueFromContractWithCustomerTextBlock": {
     "auth_ref": [
      "r253"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.",
        "label": "Revenue from Contract with Customer [Text Block]",
        "terseLabel": "REVENUE RECOGNITION"
       }
      }
     },
     "localname": "RevenueFromContractWithCustomerTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/RevenueRecognition"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_RevenueRecognitionPolicyTextBlock": {
     "auth_ref": [
      "r118",
      "r119"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for revenue. Includes revenue from contract with customer and from other sources.",
        "label": "Revenue [Policy Text Block]",
        "terseLabel": "Revenue Recognition"
       }
      }
     },
     "localname": "RevenueRecognitionPolicyTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_Revenues": {
     "auth_ref": [
      "r81",
      "r167",
      "r168",
      "r173"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails": {
       "order": 1.0,
       "parentTag": "us-gaap_ProfitLoss",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 1.0,
       "parentTag": "us-gaap_OperatingIncomeLoss",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).",
        "label": "Revenues",
        "terseLabel": "Total revenues",
        "totalLabel": "Total revenues"
       }
      }
     },
     "localname": "Revenues",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedIncomeStatementDetails",
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations",
      "http://www.oxy.com/role/RevenueRecognitionDisaggregationOfRevenueDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RevenuesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Revenues [Abstract]",
        "terseLabel": "REVENUES"
       }
      }
     },
     "localname": "RevenuesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_RevolvingCreditFacilityMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount.",
        "label": "Revolving Credit Facility [Member]",
        "terseLabel": "2014 Revolving Credit Facility"
       }
      }
     },
     "localname": "RevolvingCreditFacilityMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability": {
     "auth_ref": [
      "r470",
      "r475"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in right-of-use asset obtained in exchange for finance lease liability.",
        "label": "Right-of-Use Asset Obtained in Exchange for Finance Lease Liability",
        "terseLabel": "ROU asset obtained in exchange for lease obligations (in millions)"
       }
      }
     },
     "localname": "RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability": {
     "auth_ref": [
      "r470",
      "r475"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in right-of-use asset obtained in exchange for operating lease liability.",
        "label": "Right-of-Use Asset Obtained in Exchange for Operating Lease Liability",
        "terseLabel": "ROU asset obtained in exchange for lease obligations (in millions)"
       }
      }
     },
     "localname": "RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesSupplementalCashFlowsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_RisksAndUncertaintiesAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Risks and Uncertainties [Abstract]",
        "verboseLabel": "Revenue Recognition"
       }
      }
     },
     "localname": "RisksAndUncertaintiesAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherConcentrationOfCustomersDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the components of accrued liabilities.",
        "label": "Schedule of Accrued Liabilities [Table Text Block]",
        "terseLabel": "Schedule of accrued liabilities"
       }
      }
     },
     "localname": "ScheduleOfAccruedLiabilitiesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock": {
     "auth_ref": [
      "r290",
      "r291",
      "r301"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of benefit obligation and plan assets of defined benefit plan with accumulated benefit obligation in excess of plan assets.",
        "label": "Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block]",
        "terseLabel": "Schedule of defined benefit pension plans with accumulated benefit obligations in excess of plan assets"
       }
      }
     },
     "localname": "ScheduleOfAccumulatedBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfAllocationOfPlanAssetsTableTextBlock": {
     "auth_ref": [
      "r269"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans.  This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall.",
        "label": "Schedule of Allocation of Plan Assets [Table Text Block]",
        "terseLabel": "Fair values of pension plan assets by asset category"
       }
      }
     },
     "localname": "ScheduleOfAllocationOfPlanAssetsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfAmountsRecognizedInBalanceSheetTableTextBlock": {
     "auth_ref": [
      "r268"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the amounts that are recognized in the balance sheet (or statement of financial position) for pension plans and/or other employee benefit plans, showing separately the assets and current and noncurrent liabilities (if applicable) recognized.",
        "label": "Schedule of Amounts Recognized in Balance Sheet [Table Text Block]",
        "terseLabel": "Components of pension and postretirement amounts recognized in the balance sheets"
       }
      }
     },
     "localname": "ScheduleOfAmountsRecognizedInBalanceSheetTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfAmountsRecognizedInOtherComprehensiveIncomeLossTableTextBlock": {
     "auth_ref": [
      "r281"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the net gain (loss) and net prior service cost or credit recognized in other comprehensive income (loss) for the period for pension plans and/or other employee benefit plans, and reclassification adjustments of other comprehensive income (loss) for the period, as those amounts, including amortization of the net transition asset or obligation, are recognized as components of net periodic benefit cost.",
        "label": "Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]",
        "terseLabel": "Amounts recognized in other comprehensive income (expense)"
       }
      }
     },
     "localname": "ScheduleOfAmountsRecognizedInOtherComprehensiveIncomeLossTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfAssumptionsUsedTableTextBlock": {
     "auth_ref": [
      "r282"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate.",
        "label": "Defined Benefit Plan, Assumptions [Table Text Block]",
        "terseLabel": "Weighted-average assumptions used to determine benefit obligations and net periodic benefit cost"
       }
      }
     },
     "localname": "ScheduleOfAssumptionsUsedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable": {
     "auth_ref": [
      "r379",
      "r380"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule reflecting each material business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities.",
        "label": "Schedule of Business Acquisitions, by Acquisition [Table]",
        "terseLabel": "Schedule of Business Acquisitions, by Acquisition [Table]"
       }
      }
     },
     "localname": "ScheduleOfBusinessAcquisitionsByAcquisitionTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTransactionParagraphDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOfficeBuildingAndLandDetails",
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOtherUpstreamAcquisitionsDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesBspDetails",
      "http://www.oxy.com/role/JointVenturesOtherDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfChangeInAssetRetirementObligationTableTextBlock": {
     "auth_ref": [
      "r205"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation.",
        "label": "Schedule of Change in Asset Retirement Obligation [Table Text Block]",
        "terseLabel": "Summary of the activity of the asset retirement obligation"
       }
      }
     },
     "localname": "ScheduleOfChangeInAssetRetirementObligationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable": {
     "auth_ref": [
      "r390"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.",
        "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Table]",
        "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative [Table]"
       }
      }
     },
     "localname": "ScheduleOfCollaborativeArrangementsAndNoncollaborativeArrangementTransactionsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfCommonStockOutstandingRollForwardTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the change in common stock outstanding.",
        "label": "Schedule of Common Stock Outstanding Roll Forward [Table Text Block]",
        "terseLabel": "Summary of common stock issuances"
       }
      }
     },
     "localname": "ScheduleOfCommonStockOutstandingRollForwardTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDebtInstrumentsTextBlock": {
     "auth_ref": [
      "r46",
      "r124",
      "r235",
      "r236",
      "r237",
      "r238",
      "r452",
      "r453",
      "r455",
      "r532"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.",
        "label": "Schedule of Long-term Debt Instruments [Table Text Block]",
        "terseLabel": "Schedule of Debt"
       }
      }
     },
     "localname": "ScheduleOfDebtInstrumentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock": {
     "auth_ref": [
      "r368"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.",
        "label": "Schedule of Deferred Tax Assets and Liabilities [Table Text Block]",
        "terseLabel": "Tax effects of temporary differences resulting in deferred income taxes"
       }
      }
     },
     "localname": "ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable": {
     "auth_ref": [
      "r288",
      "r289",
      "r292",
      "r293",
      "r301"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosures about an individual defined benefit pension plan or an other postretirement defined benefit plan. It may be appropriate to group certain similar plans.  Also includes schedule for fair value of plan assets by major categories of plan assets by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), Significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).",
        "label": "Schedule of Defined Benefit Plans Disclosures [Table]",
        "terseLabel": "Schedule of Defined Benefit Plans Disclosures [Table]"
       }
      }
     },
     "localname": "ScheduleOfDefinedBenefitPlansDisclosuresTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansAssumptionsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansBenefitPaymentsDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansCostDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansDefinedBenefitPlanDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndAssetFairValuesDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansObligationsAndFundedStatusOfOurDefinedBenefitPlansDetails",
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansPlanAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock": {
     "auth_ref": [
      "r423"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the location and fair value amounts of derivative instruments (and nonderivative instruments that are designated and qualify as hedging instruments) reported in the statement of financial position.",
        "label": "Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]",
        "terseLabel": "Schedule of fair value (at gross and net) of outstanding derivatives"
       }
      }
     },
     "localname": "ScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfDerivativeInstrumentsTextBlock": {
     "auth_ref": [
      "r130",
      "r411",
      "r413",
      "r414",
      "r415",
      "r416",
      "r423",
      "r425",
      "r430",
      "r432"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.",
        "label": "Schedule of Derivative Instruments [Table Text Block]",
        "verboseLabel": "Schedule of oil hedge positions"
       }
      }
     },
     "localname": "ScheduleOfDerivativeInstrumentsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock": {
     "auth_ref": [
      "r149"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.",
        "label": "Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]",
        "terseLabel": "Calculation of basic and diluted EPS"
       }
      }
     },
     "localname": "ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock": {
     "auth_ref": [
      "r351"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.",
        "label": "Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]",
        "terseLabel": "Schedule of differences between the U.S. federal income tax rate and the Company's effective tax rate"
       }
      }
     },
     "localname": "ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable": {
     "auth_ref": [
      "r307",
      "r334",
      "r340"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about amount recognized for award under share-based payment arrangement. Includes, but is not limited to, amount expensed in statement of income or comprehensive income, amount capitalized in statement of financial position, and corresponding reporting line item in financial statements.",
        "label": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]",
        "terseLabel": "Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table]"
       }
      }
     },
     "localname": "ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationScheduleOfStockBasedCompensationExpenseDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfEquityMethodInvestmentsLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Schedule of Equity Method Investments [Line Items]",
        "terseLabel": "Schedule of Equity Method Investments [Line Items]"
       }
      }
     },
     "localname": "ScheduleOfEquityMethodInvestmentsLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfEquityMethodInvestmentsTable": {
     "auth_ref": [
      "r184"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Summarization of information required and determined to be disclosed concerning equity method investments in common stock. The summarized information includes: (a) the name of each investee or group of investees for which combined disclosure is appropriate, (2) the percentage ownership of common stock, (3) the difference, if any, between the carrying amount of an investment and the value of the underlying equity in the net assets and the accounting treatment of difference, if any, and (4) the aggregate value of each identified investment based on its quoted market price, if available.",
        "label": "Schedule of Equity Method Investments [Table]",
        "terseLabel": "Schedule of Equity Method Investments [Table]"
       }
      }
     },
     "localname": "ScheduleOfEquityMethodInvestmentsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfExpectedBenefitPaymentsTableTextBlock": {
     "auth_ref": [
      "r273"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter.",
        "label": "Schedule of Expected Benefit Payments [Table Text Block]",
        "terseLabel": "Estimated future undiscounted benefit payments, which reflect expected future service, as appropriate"
       }
      }
     },
     "localname": "ScheduleOfExpectedBenefitPaymentsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock": {
     "auth_ref": [
      "r459"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.",
        "label": "Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]",
        "terseLabel": "Schedule of future minimum lease payments for noncancelable operating leases"
       }
      }
     },
     "localname": "ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfInventoryCurrentTableTextBlock": {
     "auth_ref": [
      "r9",
      "r32",
      "r33",
      "r34"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.",
        "label": "Schedule of Inventory, Current [Table Text Block]",
        "terseLabel": "Schedule of Inventories"
       }
      }
     },
     "localname": "ScheduleOfInventoryCurrentTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock": {
     "auth_ref": [
      "r217"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented.",
        "label": "Schedule of Maturities of Long-term Debt [Table Text Block]",
        "terseLabel": "Principal maturities of debt outstanding"
       }
      }
     },
     "localname": "ScheduleOfMaturitiesOfLongTermDebtTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfNetBenefitCostsTableTextBlock": {
     "auth_ref": [
      "r275"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.",
        "label": "Schedule of Net Benefit Costs [Table Text Block]",
        "terseLabel": "Schedule of Net Benefit Costs [Table Text Block]"
       }
      }
     },
     "localname": "ScheduleOfNetBenefitCostsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/PensionAndPostretirementBenefitPlansTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the carrying amounts of other current assets.",
        "label": "Schedule of Other Current Assets [Table Text Block]",
        "terseLabel": "Schedule of other current assets, net"
       }
      }
     },
     "localname": "ScheduleOfOtherCurrentAssetsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfPropertyPlantAndEquipmentTable": {
     "auth_ref": [
      "r39",
      "r193"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.",
        "label": "Property, Plant and Equipment [Table]",
        "terseLabel": "Property, Plant and Equipment [Table]"
       }
      }
     },
     "localname": "ScheduleOfPropertyPlantAndEquipmentTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPropertyPlantAndEquipmentDetails",
      "http://www.oxy.com/role/PropertyPlantAndEquipmentDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock": {
     "auth_ref": [
      "r383"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree.",
        "label": "Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]",
        "terseLabel": "Summary of total consideration, including customary closing adjustments, and allocation of the consideration based on fair value of assets acquired as of acquisition date"
       }
      }
     },
     "localname": "ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable": {
     "auth_ref": [
      "r122",
      "r478",
      "r480",
      "r482",
      "r483",
      "r484"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule of quantitative and qualitative information pertaining to related party transactions. Examples of related party transactions include transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners; and (d) affiliates.",
        "label": "Schedule of Related Party Transactions, by Related Party [Table]",
        "terseLabel": "Schedule of Related Party Transactions, by Related Party [Table]"
       }
      }
     },
     "localname": "ScheduleOfRelatedPartyTransactionsByRelatedPartyTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherOtherCurrentAssetsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfRestructuringAndRelatedCostsTable": {
     "auth_ref": [
      "r208",
      "r209",
      "r210"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Table presenting the description of the restructuring costs, such as the expected cost; the costs incurred during the period; the cumulative costs incurred as of the balance sheet date; the income statement caption within which the restructuring charges recognized for the period are included; and the amount of and periodic changes to an entity's restructuring reserve that occurred during the period associated with the exit from or disposal of business activities or restructurings for each major type of cost by type of restructuring.",
        "label": "Schedule of Restructuring and Related Costs [Table]",
        "terseLabel": "Schedule of Restructuring and Related Costs [Table]"
       }
      }
     },
     "localname": "ScheduleOfRestructuringAndRelatedCostsTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable": {
     "auth_ref": [
      "r308",
      "r338"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of information about share-based payment arrangement.",
        "label": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]",
        "terseLabel": "Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails",
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails",
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock": {
     "auth_ref": [
      "r315"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.",
        "label": "Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]",
        "terseLabel": "Summary of changes in cash and stock-settled Restricted Stock Units (RSUs)"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock": {
     "auth_ref": [
      "r315",
      "r326",
      "r328"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.",
        "label": "Share-based Payment Arrangement, Option, Activity [Table Text Block]",
        "terseLabel": "Summary of stock option activity"
       }
      }
     },
     "localname": "ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock": {
     "auth_ref": [
      "r329"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.",
        "label": "Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]",
        "terseLabel": "Schedule of grant date assumptions used in the Black-Scholes valuation for stock options"
       }
      }
     },
     "localname": "ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SecuredDebtMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Collateralized debt obligation backed by, for example, but not limited to, pledge, mortgage or other lien on the entity's assets.",
        "label": "Secured Debt [Member]",
        "terseLabel": "2014 Revolving Credit Facility (Shared First Priority Lien)"
       }
      }
     },
     "localname": "SecuredDebtMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/Debt2016CreditAgreementsDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SellingGeneralAndAdministrativeExpense": {
     "auth_ref": [
      "r89",
      "r186"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 2.0,
       "parentTag": "crc_CostsAndOtherDeductions",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.",
        "label": "Selling, General and Administrative Expense",
        "terseLabel": "General and administrative expenses"
       }
      }
     },
     "localname": "SellingGeneralAndAdministrativeExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_SeniorLienMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Legal right, before the claims of other creditors, of a creditor to possess property or other collateral in satisfaction of an outstanding debt in the event of borrower default or bankruptcy. Excludes first mortgage loans.",
        "label": "Senior Lien [Member]",
        "terseLabel": "Second Lien Notes (Second Priority Lien)"
       }
      }
     },
     "localname": "SeniorLienMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SeniorNotesMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Bond that takes priority over other debt securities sold by the issuer. In the event the issuer goes bankrupt, senior debt holders receive priority for (must receive) repayment prior to (relative to) junior and unsecured (general) creditors.",
        "label": "Senior Notes [Member]",
        "terseLabel": "Senior Notes (Unsecured)"
       }
      }
     },
     "localname": "SeniorNotesMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DebtSecondLienNotesDetails",
      "http://www.oxy.com/role/DebtSeniorNotesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SeriesBPreferredStockMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Outstanding nonredeemable series B preferred stock or outstanding series B preferred stock. Classified within stockholders' equity if nonredeemable or redeemable solely at the option of the issuer. Classified within temporary equity if redemption is outside the control of the issuer.",
        "label": "Series B Preferred Stock [Member]",
        "terseLabel": "Class B preferred interest"
       }
      }
     },
     "localname": "SeriesBPreferredStockMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember": {
     "auth_ref": [
      "r380"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Represents the aggregation and reporting of combined amounts of individually immaterial business combinations that were completed during the period.",
        "label": "Series of Individually Immaterial Business Acquisitions [Member]",
        "terseLabel": "Other upstream acquisitions"
       }
      }
     },
     "localname": "SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresOtherUpstreamAcquisitionsDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAssetRetirementObligationsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1": {
     "auth_ref": [
      "r310"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period",
        "verboseLabel": "Award vesting period"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod": {
     "auth_ref": [
      "r320"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period",
        "negatedLabel": "Forfeited (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r325"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value",
        "terseLabel": "Forfeited, weighted-average grant-date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod": {
     "auth_ref": [
      "r323"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period",
        "terseLabel": "Granted (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockBasedCompensationStockAwardsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r323"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Granted, weighted-average grant-date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber": {
     "auth_ref": [
      "r322"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number",
        "periodEndLabel": "Unvested, end of year (in shares)",
        "periodStartLabel": "Unvested, beginning of year (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]",
        "terseLabel": "Roll-forward of awards"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r322"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value",
        "periodEndLabel": "Unvested, end of year, weighted-average grant-date fair value (in dollars per share)",
        "periodStartLabel": "Unvested, beginning of year, weighted-average grant-date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]",
        "terseLabel": "Restricted stock awards weighted-average grant-date fair value (in dollars per share)",
        "verboseLabel": "PSU awards weighted-average grant-date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod": {
     "auth_ref": [
      "r324"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period",
        "negatedLabel": "Vested (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r324"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Vested, weighted-average grant-date fair value (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]",
        "verboseLabel": "Grant-date valuations"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsAndMethodologyAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate": {
     "auth_ref": [
      "r332"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate",
        "terseLabel": "Dividend yield"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate": {
     "auth_ref": [
      "r333"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The risk-free interest rate assumption that is used in valuing an option on its own shares.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate",
        "terseLabel": "Risk-free interest rate"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate": {
     "auth_ref": [
      "r331"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Rate of weighted-average expected volatility for award under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate",
        "verboseLabel": "Expected volatility"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award [Line Items]",
        "terseLabel": "Employee awards",
        "verboseLabel": "STOCK COMPENSATION"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails",
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails",
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized": {
     "auth_ref": [
      "r311"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares authorized for issuance under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized",
        "terseLabel": "Aggregate number of common stock shares authorized for issuance",
        "verboseLabel": "Aggregate number of common stock shares authorized for issuance"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails",
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant": {
     "auth_ref": [
      "r338"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant",
        "terseLabel": "Number of shares available for future issuance"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails",
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber": {
     "auth_ref": [
      "r318"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number",
        "terseLabel": "Exercisable, end of year (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice": {
     "auth_ref": [
      "r318"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price",
        "terseLabel": "Exercisable, end of year, weighted-average exercise price (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod": {
     "auth_ref": [
      "r321"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Expirations in Period",
        "negatedTerseLabel": "Expired or Canceled (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Gross number of share options (or share units) granted during the period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross",
        "terseLabel": "Granted (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue": {
     "auth_ref": [
      "r327"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value",
        "terseLabel": "Grant-date fair value of stock option awards",
        "verboseLabel": "Weighted-average, grant date fair value of stock option awards granted (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber": {
     "auth_ref": [
      "r317",
      "r338"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of options outstanding, including both vested and non-vested options.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number",
        "periodEndLabel": "Ending balance (in shares)",
        "periodStartLabel": "Beginning balance (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]",
        "terseLabel": "Options"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingRollForward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice": {
     "auth_ref": [
      "r316"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price",
        "periodEndLabel": "Ending balance, weighted-average exercise price (in dollars per share)",
        "periodStartLabel": "Beginning balance, weighted-average exercise price (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]",
        "terseLabel": "Weighted-Average Exercise Price"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod": {
     "auth_ref": [
      "r338"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares issued under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period",
        "verboseLabel": "Common stock issued under employee stock purchase plan (in shares)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward": {
     "auth_ref": [
      "r309"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Description of terms of award under share-based payment arrangement.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award",
        "terseLabel": "Award term"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementByShareBasedPaymentAwardTermsOfAward",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain": {
     "auth_ref": [
      "r306",
      "r312"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Award under share-based payment arrangement.",
        "label": "Award Type [Domain]",
        "terseLabel": "Award Type [Domain]"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationGeneralDetails",
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationRestrictedStockDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails",
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average price at which option holders acquired shares when converting their stock options into shares.",
        "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price",
        "terseLabel": "Exercised weighted-average exercise price (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.",
        "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price",
        "terseLabel": "Expired or Canceled weighted-average exercise price (in dollars per share)"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.",
        "label": "Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price",
        "terseLabel": "Granted weighted-average exercise price (in dollars per share)",
        "verboseLabel": "Exercise price per share"
       }
      }
     },
     "localname": "ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "perShareItemType"
    },
    "us-gaap_ShareBasedCompensationPerformanceSharesAwardUnvestedActivityTableTextBlock": {
     "auth_ref": [
      "r314"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure of number and weighted-average grant date fair value for nonvested performance shares.",
        "label": "Share-based Payment Arrangement, Performance Shares, Activity [Table Text Block]",
        "terseLabel": "Summary of changes in cash and stock-settled Performance Stock Units (PSUs)"
       }
      }
     },
     "localname": "ShareBasedCompensationPerformanceSharesAwardUnvestedActivityTableTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1": {
     "auth_ref": [
      "r330",
      "r339"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term",
        "terseLabel": "Expected life (in years)"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]",
        "terseLabel": "Weighted-Average Grant-Date Fair Value"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Purchase price of common stock expressed as a percentage of its fair value.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent",
        "terseLabel": "Percentage of share purchase price of common stock under ESPP"
       }
      }
     },
     "localname": "SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationEmployeeStockPurchasePlanDetails"
     ],
     "xbrltype": "percentItemType"
    },
    "us-gaap_SharesSubjectToMandatoryRedemptionSettlementTermsAmount": {
     "auth_ref": [
      "r228"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount that would be paid, determined under the conditions specified in the contract, if the holder of the share has the right to redeem the shares.",
        "label": "Financial Instruments Subject to Mandatory Redemption, Settlement Terms, Share Value, Amount",
        "terseLabel": "Redemption price"
       }
      }
     },
     "localname": "SharesSubjectToMandatoryRedemptionSettlementTermsAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_ShortMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Indicates the sale of a borrowed security or written option.",
        "label": "Short [Member]",
        "terseLabel": "Sold"
       }
      }
     },
     "localname": "ShortMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ShortTermLeaseCost": {
     "auth_ref": [
      "r467",
      "r475"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails": {
       "order": 2.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of short-term lease cost, excluding expense for lease with term of one month or less.",
        "label": "Short-term Lease, Cost",
        "terseLabel": "Short-term lease cost"
       }
      }
     },
     "localname": "ShortTermLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StateAndLocalJurisdictionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Designated tax department of a state or local government entitled to levy and collect income taxes from the entity.",
        "label": "State and Local Jurisdiction [Member]",
        "terseLabel": "State and Local Jurisdiction"
       }
      }
     },
     "localname": "StateAndLocalJurisdictionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesDeferredTaxAssetsAndLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StatementClassOfStockAxis": {
     "auth_ref": [
      "r22",
      "r23",
      "r24",
      "r234"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by the different classes of stock of the entity.",
        "label": "Class of Stock [Axis]",
        "terseLabel": "Class of Stock [Axis]"
       }
      }
     },
     "localname": "StatementClassOfStockAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails",
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementEquityComponentsAxis": {
     "auth_ref": [
      "r48",
      "r234"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by component of equity.",
        "label": "Equity Components [Axis]",
        "terseLabel": "Equity Components [Axis]"
       }
      }
     },
     "localname": "StatementEquityComponentsAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Statement [Line Items]",
        "terseLabel": "Statement [Line Items]"
       }
      }
     },
     "localname": "StatementLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfCashFlowsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Cash Flows [Abstract]"
       }
      }
     },
     "localname": "StatementOfCashFlowsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfFinancialPositionAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Financial Position [Abstract]"
       }
      }
     },
     "localname": "StatementOfFinancialPositionAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Comprehensive Income [Abstract]"
       }
      }
     },
     "localname": "StatementOfIncomeAndComprehensiveIncomeAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementOfStockholdersEquityAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Statement of Stockholders' Equity [Abstract]"
       }
      }
     },
     "localname": "StatementOfStockholdersEquityAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StatementTable": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Schedule reflecting a Statement of Income, Statement of Cash Flows, Statement of Financial Position, Statement of Shareholders' Equity and Other Comprehensive Income, or other statement as needed.",
        "label": "Statement [Table]",
        "terseLabel": "Statement [Table]"
       }
      }
     },
     "localname": "StatementTable",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesAcquisitions": {
     "auth_ref": [
      "r23",
      "r24",
      "r239"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares of stock issued during the period pursuant to acquisitions.",
        "label": "Stock Issued During Period, Shares, Acquisitions",
        "terseLabel": "Common stock issued in connection with acquisition (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesAcquisitions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AcquisitionsAndDivestituresElkHillsTableDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesNewIssues": {
     "auth_ref": [
      "r23",
      "r24",
      "r234",
      "r239"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of new stock issued during the period.",
        "label": "Stock Issued During Period, Shares, New Issues",
        "terseLabel": "CRC shares issued to Ares-led investor group in a private placement",
        "verboseLabel": "Common stock shares issued (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised": {
     "auth_ref": [
      "r23",
      "r24",
      "r234",
      "r239",
      "r319"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of share options (or share units) exercised during the current period.",
        "label": "Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period",
        "negatedTerseLabel": "Exercised (in shares)"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodSharesStockOptionsExercised",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockIssuedDuringPeriodValueNewIssues": {
     "auth_ref": [
      "r23",
      "r24",
      "r234",
      "r239"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering.",
        "label": "Stock Issued During Period, Value, New Issues",
        "terseLabel": "Issuance of common stock",
        "verboseLabel": "Value of common stock at issuance"
       }
      }
     },
     "localname": "StockIssuedDuringPeriodValueNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockOptionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Contracts conveying rights, but not obligations, to buy or sell a specific quantity of stock at a specified price during a specified period (an American option) or at a specified date (a European option).",
        "label": "Equity Option [Member]",
        "terseLabel": "Stock Options"
       }
      }
     },
     "localname": "StockOptionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/StockBasedCompensationPerformanceStockUnitAwardsDetails",
      "http://www.oxy.com/role/StockBasedCompensationStockOptionsDetails",
      "http://www.oxy.com/role/StockBasedCompensationTables"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_StockRepurchasedAndRetiredDuringPeriodShares": {
     "auth_ref": [
      "r23",
      "r24",
      "r234",
      "r239"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of shares that have been repurchased and retired during the period.",
        "label": "Stock Repurchased and Retired During Period, Shares",
        "negatedLabel": "Common stock shares canceled (in shares)"
       }
      }
     },
     "localname": "StockRepurchasedAndRetiredDuringPeriodShares",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_StockholdersEquity": {
     "auth_ref": [
      "r24",
      "r28",
      "r29",
      "r182"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 2.0,
       "parentTag": "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.",
        "label": "Stockholders' Equity Attributable to Parent",
        "totalLabel": "Total equity attributable to common stock"
       }
      }
     },
     "localname": "StockholdersEquity",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest": {
     "auth_ref": [
      "r392",
      "r393",
      "r404"
     ],
     "calculation": {
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails": {
       "order": 7.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      },
      "http://www.oxy.com/role/ConsolidatedBalanceSheets": {
       "order": 6.0,
       "parentTag": "us-gaap_LiabilitiesAndStockholdersEquity",
       "weight": 1.0
      }
     },
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.",
        "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest",
        "periodEndLabel": "Ending balance",
        "periodStartLabel": "Beginning balance",
        "terseLabel": "Total equity",
        "totalLabel": "Total equity"
       }
      }
     },
     "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/CondensedConsolidatingFinancialInformationCondensedBalanceSheetDetails",
      "http://www.oxy.com/role/ConsolidatedBalanceSheets",
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquity",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]",
        "terseLabel": "EQUITY"
       }
      }
     },
     "localname": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedBalanceSheets"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockholdersEquityNoteAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Stockholders' Equity Note [Abstract]"
       }
      }
     },
     "localname": "StockholdersEquityNoteAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_StockholdersEquityNoteDisclosureTextBlock": {
     "auth_ref": [
      "r246"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.",
        "label": "Stockholders' Equity Note Disclosure [Text Block]",
        "terseLabel": "EQUITY"
       }
      }
     },
     "localname": "StockholdersEquityNoteDisclosureTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Equity"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SubsequentEventsAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Subsequent Events [Abstract]"
       }
      }
     },
     "localname": "SubsequentEventsAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "xbrltype": "stringItemType"
    },
    "us-gaap_SubsequentEventsTextBlock": {
     "auth_ref": [
      "r487"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.",
        "label": "Subsequent Events [Text Block]",
        "terseLabel": "Subsequent Event"
       }
      }
     },
     "localname": "SubsequentEventsTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/SubsequentEventNotes"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SummaryOfIncomeTaxContingenciesTextBlock": {
     "auth_ref": [
      "r354",
      "r361",
      "r363"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Tabular disclosure for tax positions taken in the tax returns filed or to be filed for which it is more likely than not that the tax position will not be sustained upon examination by taxing authorities and other income tax contingencies. Includes, but is not limited to, interest and penalties, reconciliation of unrecognized tax benefits, unrecognized tax benefits that would affect the effective tax rate, tax years that remain subject to examination by tax jurisdictions, and information about positions for which it is reasonably possible that amounts unrecognized will significantly change within 12 months.",
        "label": "Summary of Income Tax Contingencies [Table Text Block]",
        "terseLabel": "Reconciliation of unrecognized tax benefits"
       }
      }
     },
     "localname": "SummaryOfIncomeTaxContingenciesTextBlock",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesTables"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_SupplementalCashFlowInformationAbstract": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "label": "Supplemental Cash Flow Information [Abstract]",
        "terseLabel": "Supplemental Cash Flow Information"
       }
      }
     },
     "localname": "SupplementalCashFlowInformationAbstract",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_SwapMember": {
     "auth_ref": [
      "r409"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "A forward-based contract in which two parties agree to swap streams of payments over a specified period. The payment streams are based on an agreed-upon (or notional) principal amount. The term notional is used because swap contracts generally involve no exchange of principal at either inception or maturity. Rather, the notional amount serves as a basis for calculation of the payment streams to be exchanged.",
        "label": "Swap [Member]",
        "terseLabel": "Swaps"
       }
      }
     },
     "localname": "SwapMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/DerivativesCommodityPriceRiskDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TaxesExcludingIncomeAndExciseTaxes": {
     "auth_ref": [
      "r91"
     ],
     "calculation": {
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations": {
       "order": 4.0,
       "parentTag": "crc_CostsAndOtherDeductions",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax.",
        "label": "Taxes, Miscellaneous",
        "terseLabel": "Taxes other than on income"
       }
      }
     },
     "localname": "TaxesExcludingIncomeAndExciseTaxes",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfOperations"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TemporaryEquityLineItems": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "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.",
        "label": "Temporary Equity [Line Items]",
        "terseLabel": "Mezzanine Equity - Redeemable Noncontrolling Interest - Ares"
       }
      }
     },
     "localname": "TemporaryEquityLineItems",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues": {
     "auth_ref": [],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of new stock classified as temporary equity issued during the period.",
        "label": "Temporary Equity, Stock Issued During Period, Value, New Issues",
        "verboseLabel": "Contributions from noncontrolling interest holders, net"
       }
      }
     },
     "localname": "TemporaryEquityStockIssuedDuringPeriodValueNewIssues",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesMezzanineEquityDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_TypeOfAdoptionMember": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Adoption and early adoption of sources of change to generally accepted accounting principles (GAAP) in the United States. The FASB released the FASB Accounting Standards Codification as the authoritative source of literature effective for interim and annual periods ending after September 15, 2009. As part of the Codification process, the FASB issues Accounting Standards Updates to amend the Codification but otherwise the Accounting Standards Updates are not authoritative in their own right. All previous accounting standards (such as FASB Statements of Financial Accounting Standards, FASB Interpretations, FASB Staff Positions, Emerging Issues Task Force Consensuses, other pronouncements of the FASB or other designated bodies, or other forms of GAAP are considered accounting pronouncements) were superseded upon the adoption of the Codification. For an interim period, references to the superseded standards are included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.",
        "label": "Type of Adoption [Domain]",
        "terseLabel": "Type of Adoption [Domain]"
       }
      }
     },
     "localname": "TypeOfAdoptionMember",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/AccountingAndDisclosureChangesRecentlyAdoptedAccountingDisclosureChangesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_TypeOfArrangementAxis": {
     "auth_ref": [
      "r390"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by collaborative arrangement and arrangement other than collaborative applicable to revenue-generating activity or operations.",
        "label": "Collaborative Arrangement and Arrangement Other than Collaborative [Axis]",
        "terseLabel": "Collaborative Arrangement and Arrangement Other than Collaborative [Axis]"
       }
      }
     },
     "localname": "TypeOfArrangementAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/ConsolidatedStatementsOfEquityParenthetical",
      "http://www.oxy.com/role/EquityDetails",
      "http://www.oxy.com/role/JointVenturesAresDetails",
      "http://www.oxy.com/role/JointVenturesChangesInNoncontrollingInterestsDetails",
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherSupplementalCashFlowInformationDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_TypeOfRestructuringDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Identification of the types of restructuring costs.",
        "label": "Type of Restructuring [Domain]",
        "terseLabel": "Type of Restructuring [Domain]"
       }
      }
     },
     "localname": "TypeOfRestructuringDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherAccruedLiabilitiesDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic": {
     "auth_ref": [
      "r144"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of undistributed earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.",
        "label": "Undistributed Earnings (Loss) Allocated to Participating Securities, Basic",
        "negatedTerseLabel": "Less: Net income allocated to participating securities"
       }
      }
     },
     "localname": "UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefits": {
     "auth_ref": [
      "r347",
      "r357"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of unrecognized tax benefits.",
        "label": "Unrecognized Tax Benefits",
        "periodEndLabel": "Unrecognized tax benefits \u2013 December 31",
        "periodStartLabel": "Unrecognized tax benefits \u2013 January 1"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefits",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense": {
     "auth_ref": [
      "r353"
     ],
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.",
        "label": "Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense",
        "terseLabel": "Interest and penalties related to uncertain tax positions"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherIncomeTaxesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions": {
     "auth_ref": [
      "r359"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.",
        "label": "Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions",
        "terseLabel": "Gross increases \u2013 tax positions in current year"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions": {
     "auth_ref": [
      "r358"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.",
        "label": "Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions",
        "terseLabel": "Gross increases \u2013 tax positions in prior year"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate": {
     "auth_ref": [
      "r360"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.",
        "label": "Unrecognized Tax Benefits that Would Impact Effective Tax Rate",
        "terseLabel": "Unrecognized tax benefit that would affect effective tax rate"
       }
      }
     },
     "localname": "UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesUnrecognizedTaxBenefitsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_UseOfEstimates": {
     "auth_ref": [
      "r154",
      "r155",
      "r156",
      "r157",
      "r163",
      "r164",
      "r165"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Disclosure of accounting policy for the use of estimates in the preparation of financial statements in conformity with generally accepted accounting principles.",
        "label": "Use of Estimates, Policy [Policy Text Block]",
        "terseLabel": "Risks and Uncertainties"
       }
      }
     },
     "localname": "UseOfEstimates",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/NatureOfBusinessSummaryOfSignificantAccountingPoliciesAndOtherPolicies"
     ],
     "xbrltype": "textBlockItemType"
    },
    "us-gaap_UtilityPlantDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Plant owned by a utility entity used in the operations of the entity.",
        "label": "Utility Plant [Domain]",
        "terseLabel": "Utility Plant [Domain]"
       }
      }
     },
     "localname": "UtilityPlantDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/JointVenturesAresDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount": {
     "auth_ref": [
      "r348"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.",
        "label": "Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount",
        "terseLabel": "Valuation allowance, increase (decrease)"
       }
      }
     },
     "localname": "ValuationAllowanceDeferredTaxAssetChangeInAmount",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/IncomeTaxesIncomeTaxExpenseBenefitDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_VariableLeaseCost": {
     "auth_ref": [
      "r468",
      "r475"
     ],
     "calculation": {
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails": {
       "order": 3.0,
       "parentTag": "us-gaap_LeaseCost",
       "weight": 1.0
      }
     },
     "crdr": "debit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.",
        "label": "Variable Lease, Cost",
        "terseLabel": "Variable lease cost"
       }
      }
     },
     "localname": "VariableLeaseCost",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/LeasesOperatingLeaseCostsDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_VariableRateAxis": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Information by type of variable rate.",
        "label": "Variable Rate [Axis]",
        "terseLabel": "Variable Rate [Axis]"
       }
      }
     },
     "localname": "VariableRateAxis",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "stringItemType"
    },
    "us-gaap_VariableRateDomain": {
     "auth_ref": [],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.",
        "label": "Variable Rate [Domain]",
        "terseLabel": "Variable Rate [Domain]"
       }
      }
     },
     "localname": "VariableRateDomain",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/Debt2014RevolvingCreditFacilityDetails",
      "http://www.oxy.com/role/DebtScheduleOfLongTermDebtDetails",
      "http://www.oxy.com/role/DerivativesInterestRateContractsDetails"
     ],
     "xbrltype": "domainItemType"
    },
    "us-gaap_WarrantsAndRightsOutstanding": {
     "auth_ref": [
      "r128"
     ],
     "crdr": "credit",
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.",
        "label": "Warrants and Rights Outstanding",
        "terseLabel": "Tranche value"
       }
      }
     },
     "localname": "WarrantsAndRightsOutstanding",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "monetaryItemType"
    },
    "us-gaap_WarrantsAndRightsOutstandingMeasurementInput": {
     "auth_ref": [
      "r439"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.",
        "label": "Warrants and Rights Outstanding, Measurement Input",
        "terseLabel": "Measurement input"
       }
      }
     },
     "localname": "WarrantsAndRightsOutstandingMeasurementInput",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "decimalItemType"
    },
    "us-gaap_WarrantsAndRightsOutstandingTerm": {
     "auth_ref": [
      "r439"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.",
        "label": "Warrants and Rights Outstanding, Term",
        "terseLabel": "Expected term"
       }
      }
     },
     "localname": "WarrantsAndRightsOutstandingTerm",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EquityEquityFairValueMeasurementInputsAndValuationTechniquesDetails"
     ],
     "xbrltype": "durationItemType"
    },
    "us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment": {
     "auth_ref": [
      "r147"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.",
        "label": "Weighted Average Number Diluted Shares Outstanding Adjustment",
        "terseLabel": "Dilutive effect of potentially dilutive securities (in shares)"
       }
      }
     },
     "localname": "WeightedAverageNumberDilutedSharesOutstandingAdjustment",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "sharesItemType"
    },
    "us-gaap_WeightedAverageNumberOfSharesOutstandingBasic": {
     "auth_ref": [
      "r140",
      "r147"
     ],
     "lang": {
      "en-US": {
       "role": {
        "documentation": "Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.",
        "label": "Weighted Average Number of Shares Outstanding, Basic",
        "terseLabel": "Weighted-average common shares outstanding"
       }
      }
     },
     "localname": "WeightedAverageNumberOfSharesOutstandingBasic",
     "nsuri": "http://fasb.org/us-gaap/2019-01-31",
     "presentation": [
      "http://www.oxy.com/role/EarningsPerShareCalculationOfEpsDetails"
     ],
     "xbrltype": "sharesItemType"
    }
   },
   "unitCount": 14
  }
 },
 "std_ref": {
  "r0": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r1": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r10": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r100": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r101": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r102": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r103": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r104": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585"
  },
  "r105": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3367-108585"
  },
  "r106": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3000-108585"
  },
  "r107": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "24",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3521-108585"
  },
  "r108": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585"
  },
  "r109": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585"
  },
  "r11": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(12))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r110": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r111": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r112": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585"
  },
  "r113": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3044-108585"
  },
  "r114": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586"
  },
  "r115": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586"
  },
  "r116": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18726-107790"
  },
  "r117": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790"
  },
  "r118": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790"
  },
  "r119": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=84158767&loc=d3e18823-107790"
  },
  "r12": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(13))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r120": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(h))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r121": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(i))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r122": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(k))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r123": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08(m)(1)(iii))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r124": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(e),(f))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r125": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(f))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r126": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(h)(2))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r127": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(i)(4))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r128": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(i))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r129": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(k)(1))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r13": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(14))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r130": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(n)(2))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r131": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-08.(n))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690"
  },
  "r132": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-04(a))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690"
  },
  "r133": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-04)",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690"
  },
  "r134": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.12-04.(a))",
   "Topic": "235",
   "URI": "http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690"
  },
  "r135": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "235",
   "URI": "http://asc.fasb.org/topic&trid=2122369"
  },
  "r136": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794"
  },
  "r137": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794"
  },
  "r138": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "250",
   "URI": "http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794"
  },
  "r139": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "250",
   "URI": "http://asc.fasb.org/topic&trid=2122394"
  },
  "r14": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(19))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r140": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1448-109256"
  },
  "r141": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1377-109256"
  },
  "r142": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1505-109256"
  },
  "r143": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1252-109256"
  },
  "r144": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=SL5780133-109256"
  },
  "r145": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "60B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=SL5780133-109256"
  },
  "r146": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117326831&loc=d3e1337-109256"
  },
  "r147": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r148": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r149": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257"
  },
  "r15": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(2))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r150": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257"
  },
  "r151": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "52",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "260",
   "URI": "http://asc.fasb.org/extlink&oid=117327953&loc=d3e4984-109258"
  },
  "r152": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "260",
   "URI": "http://asc.fasb.org/topic&trid=2144383"
  },
  "r153": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "270",
   "URI": "http://asc.fasb.org/extlink&oid=116846552&loc=d3e543-108305"
  },
  "r154": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r155": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e5967-108592"
  },
  "r156": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6161-108592"
  },
  "r157": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6191-108592"
  },
  "r158": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6327-108592"
  },
  "r159": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592"
  },
  "r16": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(20))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r160": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "18",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592"
  },
  "r161": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592"
  },
  "r162": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6442-108592"
  },
  "r163": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6061-108592"
  },
  "r164": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6132-108592"
  },
  "r165": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "275",
   "URI": "http://asc.fasb.org/extlink&oid=99393423&loc=d3e6143-108592"
  },
  "r166": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "275",
   "URI": "http://asc.fasb.org/topic&trid=2134479"
  },
  "r167": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r168": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r169": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r17": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(22))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r170": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r171": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "22",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599"
  },
  "r172": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "30",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599"
  },
  "r173": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599"
  },
  "r174": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599"
  },
  "r175": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "32",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599"
  },
  "r176": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9031-108599"
  },
  "r177": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "41",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599"
  },
  "r178": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "42",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "280",
   "URI": "http://asc.fasb.org/extlink&oid=115929826&loc=d3e9054-108599"
  },
  "r179": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4647-111522"
  },
  "r18": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(23))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r180": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522"
  },
  "r181": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=118952595&loc=d3e4531-111522"
  },
  "r182": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 4.E)",
   "Topic": "310",
   "URI": "http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707"
  },
  "r183": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "320",
   "URI": "http://asc.fasb.org/topic&trid=2196928"
  },
  "r184": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(b)",
   "Topic": "323",
   "URI": "http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571"
  },
  "r185": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "323",
   "URI": "http://asc.fasb.org/topic&trid=2196965"
  },
  "r186": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=68048583&loc=d3e3636-108311"
  },
  "r187": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=116846819&loc=d3e3927-108312"
  },
  "r188": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4492-108314"
  },
  "r189": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "330",
   "URI": "http://asc.fasb.org/extlink&oid=116847112&loc=d3e4556-108314"
  },
  "r19": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(24))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r190": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "05",
   "SubTopic": "10",
   "Topic": "340",
   "URI": "http://asc.fasb.org/extlink&oid=68074540&loc=d3e5879-108316"
  },
  "r191": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r192": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r193": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229"
  },
  "r194": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2921-110230"
  },
  "r195": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "360",
   "URI": "http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230"
  },
  "r196": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "360",
   "URI": "http://asc.fasb.org/topic&trid=2155823"
  },
  "r197": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "20",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392603&loc=d3e7123-110846"
  },
  "r198": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392676&loc=d3e7480-110848"
  },
  "r199": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849"
  },
  "r2": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(g)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r20": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(26)(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r200": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(1)",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849"
  },
  "r201": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849"
  },
  "r202": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(3)",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849"
  },
  "r203": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(4)",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849"
  },
  "r204": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849"
  },
  "r205": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "410",
   "URI": "http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859"
  },
  "r206": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(1)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r207": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r208": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869"
  },
  "r209": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 5.P.3)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747"
  },
  "r21": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(26)(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r210": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 5.P.4)",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r211": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.4(b)(1))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r212": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 5.P.4(d))",
   "Topic": "420",
   "URI": "http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747"
  },
  "r213": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "440",
   "URI": "http://asc.fasb.org/topic&trid=2144648"
  },
  "r214": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "450",
   "URI": "http://asc.fasb.org/extlink&oid=118942415&loc=d3e14615-108349"
  },
  "r215": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "450",
   "URI": "http://asc.fasb.org/topic&trid=2127136"
  },
  "r216": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "460",
   "URI": "http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249"
  },
  "r217": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601"
  },
  "r218": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=6802200&loc=SL6230698-112601"
  },
  "r219": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-10(d)(4)(iii))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=116634808&loc=d3e168853-122756"
  },
  "r22": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(27))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r220": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-10(d)(4)(iv))",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=116634808&loc=d3e168853-122756"
  },
  "r221": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109126253&loc=d3e4724-112606"
  },
  "r222": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
  },
  "r223": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(2)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
  },
  "r224": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870"
  },
  "r225": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "40",
   "SubTopic": "50",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629"
  },
  "r226": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "40",
   "SubTopic": "50",
   "Topic": "470",
   "URI": "http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629"
  },
  "r227": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "470",
   "URI": "http://asc.fasb.org/topic&trid=2208564"
  },
  "r228": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=109262807&loc=d3e22047-110879"
  },
  "r229": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(12)(c)",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764"
  },
  "r23": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(28))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r230": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(16)(c)",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764"
  },
  "r231": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(3)",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764"
  },
  "r232": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "14",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764"
  },
  "r233": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3A",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "15",
   "Topic": "480",
   "URI": "http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764"
  },
  "r234": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644"
  },
  "r235": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644"
  },
  "r236": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21506-112644"
  },
  "r237": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21521-112644"
  },
  "r238": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=109259400&loc=d3e21538-112644"
  },
  "r239": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3-04)",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770"
  },
  "r24": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(29))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r240": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770"
  },
  "r241": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655"
  },
  "r242": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6405834&loc=d3e23285-112656"
  },
  "r243": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6405834&loc=d3e23309-112656"
  },
  "r244": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656"
  },
  "r245": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "50",
   "Topic": "505",
   "URI": "http://asc.fasb.org/extlink&oid=6784392&loc=d3e188667-122775"
  },
  "r246": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "505",
   "URI": "http://asc.fasb.org/topic&trid=2208762"
  },
  "r247": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045"
  },
  "r248": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045"
  },
  "r249": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045"
  },
  "r25": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r250": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046"
  },
  "r251": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046"
  },
  "r252": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "91",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "606",
   "URI": "http://asc.fasb.org/extlink&oid=118944142&loc=SL49130690-203046-203046"
  },
  "r253": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "606",
   "URI": "http://asc.fasb.org/topic&trid=49130388"
  },
  "r254": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "15",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "712",
   "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664"
  },
  "r255": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "15",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "712",
   "URI": "http://asc.fasb.org/extlink&oid=6410066&loc=d3e79218-111664"
  },
  "r256": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=109237824&loc=d3e1703-114919"
  },
  "r257": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=109237824&loc=d3e1731-114919"
  },
  "r258": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r259": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(1)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r26": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r260": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(10)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r261": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(2)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r262": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(4)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r263": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(6)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r264": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(b)(c)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r265": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r266": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(1)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r267": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)(3)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r268": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r269": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(5)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r27": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30)(a)(3))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r270": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(i)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r271": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(ii)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r272": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)(iv)(01)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r273": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(f)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r274": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r275": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r276": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(1)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r277": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(2)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r278": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(3)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r279": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(4)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r28": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(30))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r280": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(h)(7)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r281": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(i)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r282": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(k)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r283": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(k)(1)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r284": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(k)(2)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r285": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(k)(3)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r286": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(l)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r287": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(n)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r288": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920"
  },
  "r289": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2410-114920"
  },
  "r29": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(31))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r290": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920"
  },
  "r291": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920"
  },
  "r292": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920"
  },
  "r293": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2439-114920"
  },
  "r294": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r295": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(1)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r296": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(2)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r297": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(3)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r298": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(4)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r299": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)(7)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r3": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6676-107765"
  },
  "r30": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(32))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r300": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118255775&loc=d3e2709-114920"
  },
  "r301": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921"
  },
  "r302": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "60",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964"
  },
  "r303": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "70",
   "Topic": "715",
   "URI": "http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942"
  },
  "r304": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "715",
   "URI": "http://asc.fasb.org/topic&trid=2235017"
  },
  "r305": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116855982&loc=d3e4534-113899"
  },
  "r306": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r307": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r308": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901"
  },
  "r309": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r31": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(a)(4))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r310": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r311": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r312": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(g)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r313": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b),(f(1))",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r314": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r315": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r316": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r317": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r318": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r319": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r32": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r320": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r321": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)(iv)(4)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r322": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(i)-(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r323": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r324": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r325": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)(iii)(3)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r326": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r327": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r328": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r329": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r33": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r330": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r331": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(ii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r332": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iii)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r333": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(f)(2)(iv)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r334": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r335": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(h)(1)(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r336": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r337": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(k)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r338": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901"
  },
  "r339": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.D.2)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
  },
  "r34": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02(6)(c))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r340": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB Topic 14.F)",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809"
  },
  "r341": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=118258462&loc=d3e11149-113907"
  },
  "r342": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "718",
   "URI": "http://asc.fasb.org/extlink&oid=118258462&loc=d3e11178-113907"
  },
  "r343": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "718",
   "URI": "http://asc.fasb.org/topic&trid=2228938"
  },
  "r344": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "720",
   "URI": "http://asc.fasb.org/extlink&oid=6419918&loc=d3e35281-107843"
  },
  "r345": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314"
  },
  "r346": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=117330534&loc=d3e28680-109314"
  },
  "r347": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=SL37586934-109318"
  },
  "r348": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32123-109318"
  },
  "r349": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "25",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32247-109318"
  },
  "r35": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.1)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r350": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116821951&loc=d3e32280-109318"
  },
  "r351": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319"
  },
  "r352": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319"
  },
  "r353": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319"
  },
  "r354": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319"
  },
  "r355": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319"
  },
  "r356": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319"
  },
  "r357": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r358": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r359": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r36": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.13(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r360": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r361": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=SL6600010-109319"
  },
  "r362": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319"
  },
  "r363": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32840-109319"
  },
  "r364": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r365": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r366": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b),(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r367": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r368": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319"
  },
  "r369": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32847-109319"
  },
  "r37": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.13(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r370": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319"
  },
  "r371": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319"
  },
  "r372": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319"
  },
  "r373": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319"
  },
  "r374": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "217",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=117331294&loc=d3e36027-109320"
  },
  "r375": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SAB TOPIC 6.I)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817"
  },
  "r376": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324"
  },
  "r377": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "05",
   "SubTopic": "30",
   "Topic": "740",
   "URI": "http://asc.fasb.org/extlink&oid=65884525&loc=d3e40913-109327"
  },
  "r378": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "740",
   "URI": "http://asc.fasb.org/topic&trid=2144680"
  },
  "r379": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463"
  },
  "r38": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.13)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r380": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463"
  },
  "r381": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "37",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464"
  },
  "r382": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472"
  },
  "r383": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472"
  },
  "r384": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "30",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=6911189&loc=d3e6405-128476"
  },
  "r385": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "30",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477"
  },
  "r386": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "30",
   "SubTopic": "30",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477"
  },
  "r387": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
  },
  "r388": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(1)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
  },
  "r389": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "30",
   "Subparagraph": "(b)(3)",
   "Topic": "805",
   "URI": "http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479"
  },
  "r39": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.14)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r390": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "808",
   "URI": "http://asc.fasb.org/extlink&oid=6931272&loc=SL5834143-161434"
  },
  "r391": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=d3e5283-111683"
  },
  "r392": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683"
  },
  "r393": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683"
  },
  "r394": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "19",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683"
  },
  "r395": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569643-111683"
  },
  "r396": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=108774443&loc=SL4569655-111683"
  },
  "r397": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r398": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(2)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r399": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r4": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6787-107765"
  },
  "r40": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.17)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r400": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(2)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r401": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r402": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c),(3)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r403": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684"
  },
  "r404": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4I",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4590271-111686"
  },
  "r405": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4J",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591551-111686"
  },
  "r406": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4K",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116874947&loc=SL4591552-111686"
  },
  "r407": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.3A-04)",
   "Topic": "810",
   "URI": "http://asc.fasb.org/extlink&oid=116822174&loc=d3e355119-122828"
  },
  "r408": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "810",
   "URI": "http://asc.fasb.org/topic&trid=2197479"
  },
  "r409": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "83",
   "Publisher": "FASB",
   "Section": "15",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=117415099&loc=d3e34841-113949"
  },
  "r41": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r410": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=117331979&loc=d3e41228-113958"
  },
  "r411": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579240-113959"
  },
  "r412": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959"
  },
  "r413": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959"
  },
  "r414": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959"
  },
  "r415": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41620-113959"
  },
  "r416": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41638-113959"
  },
  "r417": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
  },
  "r418": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
  },
  "r419": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)(1)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959"
  },
  "r42": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.19(b),22(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r420": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a),(c)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r421": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)(1)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r422": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r423": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959"
  },
  "r424": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(e)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
  },
  "r425": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4C",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959"
  },
  "r426": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4CC",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL109998890-113959"
  },
  "r427": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(1)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
  },
  "r428": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)(4)",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
  },
  "r429": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959"
  },
  "r43": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.20)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r430": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41641-113959"
  },
  "r431": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41675-113959"
  },
  "r432": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=109980867&loc=d3e41678-113959"
  },
  "r433": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "182",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=116861445&loc=SL5629052-113961"
  },
  "r434": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "815",
   "URI": "http://asc.fasb.org/extlink&oid=118875152&loc=SL5864739-113975"
  },
  "r435": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "815",
   "URI": "http://asc.fasb.org/topic&trid=2229140"
  },
  "r436": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r437": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r438": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r439": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(bbb)(2)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r44": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.21)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r440": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258"
  },
  "r441": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258"
  },
  "r442": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "820",
   "URI": "http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258"
  },
  "r443": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=116690757&loc=d3e13220-108610"
  },
  "r444": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611"
  },
  "r445": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13467-108611"
  },
  "r446": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13476-108611"
  },
  "r447": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13531-108611"
  },
  "r448": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611"
  },
  "r449": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "825",
   "URI": "http://asc.fasb.org/extlink&oid=118260190&loc=d3e13537-108611"
  },
  "r45": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r450": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "230",
   "Topic": "830",
   "URI": "http://asc.fasb.org/extlink&oid=98513438&loc=d3e33268-110906"
  },
  "r451": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391"
  },
  "r452": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28541-108399"
  },
  "r453": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399"
  },
  "r454": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399"
  },
  "r455": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "30",
   "Topic": "835",
   "URI": "http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400"
  },
  "r456": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "40",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "10",
   "Subparagraph": "(Note 3)",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697"
  },
  "r457": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717"
  },
  "r458": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717"
  },
  "r459": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "840",
   "URI": "http://asc.fasb.org/extlink&oid=77902758&loc=d3e41502-112717"
  },
  "r46": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.22)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r460": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "65",
   "SubTopic": "10",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=119364159&loc=SL77916155-209984"
  },
  "r461": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888369&loc=SL77918431-209957"
  },
  "r462": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977"
  },
  "r463": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977"
  },
  "r464": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888419&loc=SL77918643-209977"
  },
  "r465": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980"
  },
  "r466": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r467": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r468": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(d)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r469": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(1)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r47": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.24)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r470": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(2)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r471": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(3)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r472": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(g)(4)",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r473": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980"
  },
  "r474": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980"
  },
  "r475": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "53",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971"
  },
  "r476": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "SubTopic": "20",
   "Topic": "842",
   "URI": "http://asc.fasb.org/subtopic&trid=77888251"
  },
  "r477": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r478": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864"
  },
  "r479": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39599-107864"
  },
  "r48": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.29-31)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r480": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39603-107864"
  },
  "r481": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864"
  },
  "r482": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39622-107864"
  },
  "r483": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39678-107864"
  },
  "r484": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "850",
   "URI": "http://asc.fasb.org/extlink&oid=6457730&loc=d3e39691-107864"
  },
  "r485": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "850",
   "URI": "http://asc.fasb.org/topic&trid=2122745"
  },
  "r486": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "855",
   "URI": "http://asc.fasb.org/extlink&oid=6842918&loc=SL6314020-165662"
  },
  "r487": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "855",
   "URI": "http://asc.fasb.org/topic&trid=2122774"
  },
  "r488": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r489": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(1)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r49": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.31)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r490": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r491": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(bb)(3)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=d3e107207-111719"
  },
  "r492": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4D",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)(2)",
   "Topic": "860",
   "URI": "http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719"
  },
  "r493": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-10(a)(32))",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862"
  },
  "r494": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-10(c)(3)(ii)(A))",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862"
  },
  "r495": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.4-10(c)(7)(ii))",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862"
  },
  "r496": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61901-109447"
  },
  "r497": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61926-109447"
  },
  "r498": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447"
  },
  "r499": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "15",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61929-109447"
  },
  "r5": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6801-107765"
  },
  "r50": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.6(a)(1))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r500": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447"
  },
  "r501": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)(1)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447"
  },
  "r502": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)(2)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447"
  },
  "r503": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)(3)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447"
  },
  "r504": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447"
  },
  "r505": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447"
  },
  "r506": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62059-109447"
  },
  "r507": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "23",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62136-109447"
  },
  "r508": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447"
  },
  "r509": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "28",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62395-109447"
  },
  "r51": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.6(a)(5))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r510": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447"
  },
  "r511": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "33",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e62479-109447"
  },
  "r512": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "35A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(a)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447"
  },
  "r513": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "35A",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(b)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=SL6807758-109447"
  },
  "r514": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)(1)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447"
  },
  "r515": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "235",
   "Subparagraph": "(c)(2)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=68064819&loc=d3e61872-109447"
  },
  "r516": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "360",
   "Subparagraph": "(c)",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=96866604&loc=d3e64954-109465"
  },
  "r517": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "35",
   "SubTopic": "360",
   "Topic": "932",
   "URI": "http://asc.fasb.org/extlink&oid=66906256&loc=d3e66150-109466"
  },
  "r518": {
   "Name": "Accounting Standards Codification",
   "Publisher": "FASB",
   "Topic": "932",
   "URI": "http://asc.fasb.org/topic&trid=2145477"
  },
  "r519": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "25",
   "SubTopic": "20",
   "Topic": "940",
   "URI": "http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953"
  },
  "r52": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.6(a))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r520": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(1)(a))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r521": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(11))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r522": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(13))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r523": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(15)(2))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r524": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(16))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r525": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r526": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r527": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.9-03(6))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878"
  },
  "r528": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(15))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r529": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(22))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r53": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.6(b))",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r530": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.9-04(23))",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260"
  },
  "r531": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "470",
   "Subparagraph": "e",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823"
  },
  "r532": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "470",
   "Topic": "942",
   "URI": "http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823"
  },
  "r533": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(15)(b)(2))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r534": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r535": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(1)(b))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r536": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(12))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r537": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(16))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r538": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(2))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r539": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(23)(a)(4))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r54": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.8)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r540": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(24))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r541": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(25))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r542": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03(a)(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r543": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.7-03.3)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910"
  },
  "r544": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(18))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r545": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(19))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r546": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "220",
   "Subparagraph": "(SX 210.7-04(8))",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263"
  },
  "r547": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4H",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "40",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438"
  },
  "r548": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(a)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441"
  },
  "r549": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(b)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441"
  },
  "r55": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-02.9)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682"
  },
  "r550": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13H",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "40",
   "Subparagraph": "(c)",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=117419784&loc=SL117783719-158441"
  },
  "r551": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "825",
   "Topic": "944",
   "URI": "http://asc.fasb.org/extlink&oid=99380617&loc=SL75241803-196195"
  },
  "r552": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "20",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840"
  },
  "r553": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "21",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "210",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840"
  },
  "r554": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "210",
   "Subparagraph": "(SX 210.6-04(12)(b)(3))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996"
  },
  "r555": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-12B.1)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611197-123010"
  },
  "r556": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-14(2))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010"
  },
  "r557": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-14(6))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010"
  },
  "r558": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-14(Column C))",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611322-123010"
  },
  "r559": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "320",
   "Subparagraph": "(SX 210.12-15)",
   "Topic": "946",
   "URI": "http://asc.fasb.org/extlink&oid=50485924&loc=d3e611379-123010"
  },
  "r56": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(a)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r560": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "310",
   "Subparagraph": "(SX 210.12-29(Footnote 4))",
   "Topic": "948",
   "URI": "http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014"
  },
  "r561": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "450",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=6491354&loc=d3e6049-115624"
  },
  "r562": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "450",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=6491354&loc=d3e6052-115624"
  },
  "r563": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "740",
   "Topic": "954",
   "URI": "http://asc.fasb.org/extlink&oid=6491622&loc=d3e9504-115650"
  },
  "r564": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Footnote 2))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024"
  },
  "r565": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "360",
   "Subparagraph": "(SX 210.12-28(Footnote 4))",
   "Topic": "970",
   "URI": "http://asc.fasb.org/extlink&oid=6590653&loc=d3e638233-123024"
  },
  "r566": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b"
  },
  "r567": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-23"
  },
  "r568": {
   "Name": "Exchange Act",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "d1-1"
  },
  "r569": {
   "Name": "Forms 10-K, 10-Q, 20-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "13",
   "Subsection": "a-1-"
  },
  "r57": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(b)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r570": {
   "Name": "Forms 10-K, 20-F, 40-F",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "15",
   "Subsection": "d-1"
  },
  "r571": {
   "Name": "Regulation 12B",
   "Number": "240",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "b-2"
  },
  "r572": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1204",
   "Subparagraph": "(1)"
  },
  "r573": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(b)",
   "Publisher": "SEC",
   "Section": "1204",
   "Subparagraph": "(2)"
  },
  "r574": {
   "Name": "Regulation S-K (SK)",
   "Number": "229",
   "Paragraph": "(a)",
   "Publisher": "SEC",
   "Section": "303",
   "Subparagraph": "(5)"
  },
  "r575": {
   "Name": "Regulation S-T",
   "Number": "232",
   "Publisher": "SEC",
   "Section": "405"
  },
  "r576": {
   "Footnote": "2",
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "28"
  },
  "r577": {
   "Footnote": "4",
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "28"
  },
  "r578": {
   "Footnote": "4",
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "29"
  },
  "r579": {
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Paragraph": "(a)",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "04"
  },
  "r58": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Subparagraph": "(c)",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r580": {
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Paragraph": "a",
   "Publisher": "SEC",
   "Section": "12",
   "Subsection": "04"
  },
  "r581": {
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Paragraph": "d",
   "Publisher": "SEC",
   "Section": "3",
   "Subparagraph": "(4)(iii)",
   "Subsection": "10"
  },
  "r582": {
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Paragraph": "d",
   "Publisher": "SEC",
   "Section": "3",
   "Subparagraph": "(4)(iv)",
   "Subsection": "10"
  },
  "r583": {
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Paragraph": "i",
   "Publisher": "SEC",
   "Section": "3",
   "Subsection": "10"
  },
  "r584": {
   "Name": "Regulation S-X (SX)",
   "Number": "210",
   "Paragraph": "(m)",
   "Publisher": "SEC",
   "Section": "4",
   "Subparagraph": "(1)(iii)",
   "Subsection": "08"
  },
  "r59": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "3",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312"
  },
  "r6": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "6",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6911-107765"
  },
  "r60": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "4",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=51824906&loc=SL20225877-175312"
  },
  "r61": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313"
  },
  "r62": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "16",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226024-175313"
  },
  "r63": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "7",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313"
  },
  "r64": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "55",
   "SubTopic": "20",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=99393222&loc=SL20226003-175313"
  },
  "r65": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(d)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r66": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(i)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r67": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(i-k)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r68": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "10A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580"
  },
  "r69": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "11",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580"
  },
  "r7": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "8",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e6935-107765"
  },
  "r70": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e640-108580"
  },
  "r71": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580"
  },
  "r72": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580"
  },
  "r73": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "17B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580"
  },
  "r74": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r75": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r76": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1A",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580"
  },
  "r77": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580"
  },
  "r78": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1B",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580"
  },
  "r79": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "5",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=118930883&loc=d3e557-108580"
  },
  "r8": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "9",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=118951113&loc=d3e7018-107765"
  },
  "r80": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116657188&loc=SL116659661-227067"
  },
  "r81": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(1))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r82": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(10))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r83": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(20))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r84": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(21))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r85": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03(4))",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r86": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.1)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r87": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.19)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r88": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.2)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r89": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.4)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r9": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "1",
   "Publisher": "FASB",
   "Section": "50",
   "SubTopic": "10",
   "Topic": "210",
   "URI": "http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766"
  },
  "r90": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.7)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r91": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "2",
   "Publisher": "FASB",
   "Section": "S99",
   "SubTopic": "10",
   "Subparagraph": "(SX 210.5-03.9)",
   "Topic": "220",
   "URI": "http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227"
  },
  "r92": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585"
  },
  "r93": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "12",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585"
  },
  "r94": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r95": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(c)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r96": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "13",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585"
  },
  "r97": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(a)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  },
  "r98": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Subparagraph": "(b)",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  },
  "r99": {
   "Name": "Accounting Standards Codification",
   "Paragraph": "14",
   "Publisher": "FASB",
   "Section": "45",
   "SubTopic": "10",
   "Topic": "230",
   "URI": "http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585"
  }
 },
 "version": "2.1"
}
