$OXY
Occidental Petroleum Corp Stock $oxy

$oxy Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-K Financial Statement

#000079746821000009 Filed on February 26, 2021

Income Statement

Concept	2019 Q4	2018 Q4	2018
Revenue	$6.670B	$4.570B	$17.82B
YoY Change	45.95%	29.24%	42.5%
Cost Of Revenue	$2.483B	$1.954B	$2.833B
YoY Change	27.07%	47.47%	-3.57%
Gross Profit	$4.187B	$2.616B	$14.99B
YoY Change	60.05%	18.32%	56.65%
Gross Profit Margin	62.77%	57.24%	84.11%
Selling, General & Admin	$707.0M	$579.0M	$585.0M
YoY Change	22.11%	7.62%	-66.28%
% of Gross Profit	16.89%	22.13%	3.9%
Research & Development	$113.0M	$50.00M	$110.0M
YoY Change	126.0%	-9.09%	34.15%
% of Gross Profit	2.7%	1.91%	0.73%
Depreciation & Amortization	$2.271B	$1.086B	$3.977B
YoY Change	109.12%	0.93%	-0.62%
% of Gross Profit	54.24%	41.51%	26.53%
Operating Expenses	$3.750B	$1.715B	$585.0M
YoY Change	118.66%	2.76%	-89.95%
Operating Profit	$437.0M	$901.0M	$14.41B
YoY Change	-51.5%	66.24%	284.06%
Interest Expense	$403.0M	$133.0M	$774.0M
YoY Change	203.01%	-480.0%	180.43%
% of Operating Profit	92.22%	14.76%	5.37%
Other Income/Expense, Net			$331.0M
YoY Change			-7.28%
Pretax Income	-$869.0M	$729.0M	$5.608B
YoY Change	-219.2%	-5307.14%	322.29%
Income Tax	$167.0M	$151.0M	$1.477B
% Of Pretax Income		20.71%	26.34%
Net Earnings	-$1.139B	$706.0M	$4.131B
YoY Change	-261.33%	42.05%	215.1%
Net Earnings / Revenue	-17.08%	15.45%	23.18%
Basic Earnings Per Share			$5.40
Diluted Earnings Per Share	-$1.273M	$934.1K	$5.39
COMMON SHARES
Basic Shares Outstanding			761.7M shares
Diluted Shares Outstanding			763.3M shares

Balance Sheet

Concept	2019 Q4	2018 Q4	2018
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.032B	$3.033B	$3.033B
YoY Change	-0.03%	81.4%	81.4%
Cash & Equivalents	$3.032B	$3.033B	$3.033B
Short-Term Investments
Other Short-Term Assets	$1.432B	$746.0M	$746.0M
YoY Change	91.96%	1.77%	-38.19%
Inventory	$1.581B	$1.260B	$1.260B
Prepaid Expenses
Receivables	$4.200B	$4.900B	$4.893B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$14.63B	$9.932B	$9.932B
YoY Change	47.33%	20.1%	20.1%
LONG-TERM ASSETS
Property, Plant & Equipment	$82.23B	$31.44B	$31.44B
YoY Change	161.57%	0.84%	0.84%
Goodwill
YoY Change
Intangibles		$8.000M
YoY Change
Long-Term Investments	$6.389B	$1.680B	$1.680B
YoY Change	280.3%	10.89%	10.89%
Other Assets		$8.000M	$8.000M
YoY Change		300.0%	300.0%
Total Long-Term Assets	$92.56B	$32.23B	$33.92B
YoY Change	187.2%	-4.53%	0.49%
TOTAL ASSETS
Total Short-Term Assets	$14.63B	$9.932B	$9.932B
Total Long-Term Assets	$92.56B	$32.23B	$33.92B
Total Assets	$107.2B	$42.16B	$43.85B
YoY Change	154.25%	0.32%	4.35%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$4.910B	$4.885B	$4.885B
YoY Change	0.51%	10.82%	10.82%
Accrued Expenses	$5.447B	$2.411B	$2.343B
YoY Change	125.92%	-3.25%	4.18%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$51.00M	$116.0M	$116.0M
YoY Change	-56.03%	-76.8%	-76.8%
Total Short-Term Liabilities	$12.71B	$7.412B	$7.412B
YoY Change	71.41%	0.16%	0.16%
LONG-TERM LIABILITIES
Long-Term Debt	$38.54B	$10.20B	$10.20B
YoY Change	277.78%	9.36%	9.36%
Other Long-Term Liabilities	$3.858B	$1.009B	$4.004B
YoY Change	282.36%	-13.83%	-3.4%
Total Long-Term Liabilities	$42.40B	$11.21B	$14.21B
YoY Change	278.19%	6.77%	5.43%
TOTAL LIABILITIES
Total Short-Term Liabilities	$12.71B	$7.412B	$7.412B
Total Long-Term Liabilities	$42.40B	$11.21B	$14.21B
Total Liabilities	$55.10B	$18.62B	$22.52B
YoY Change	195.89%	4.04%	4.99%
SHAREHOLDERS EQUITY
Retained Earnings	$20.18B	$23.75B
YoY Change	-15.03%	8.27%
Common Stock	$15.16B	$8.225B
YoY Change	84.36%	2.01%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$10.65B	$10.47B
YoY Change	1.72%	14.23%
Treasury Stock Shares	150.3M shares	145.7M shares
Shareholders Equity	$34.23B	$21.33B	$21.33B
YoY Change
Total Liabilities & Shareholders Equity	$107.2B	$43.85B	$43.85B
YoY Change	144.42%	4.35%	4.35%

Cashflow Statement

Concept	2019 Q4	2018 Q4	2018
OPERATING ACTIVITIES
Net Income	-$1.139B	$706.0M	$4.131B
YoY Change	-261.33%	42.05%	215.1%
Depreciation, Depletion And Amortization	$2.271B	$1.086B	$3.977B
YoY Change	109.12%	0.93%	-0.62%
Cash From Operating Activities	$2.009B	$2.500B	$7.669B
YoY Change	-19.64%	75.93%	57.77%
INVESTING ACTIVITIES
Capital Expenditures	-$2.171B	-$1.337B	$4.975B
YoY Change	62.38%	15.26%	38.23%
Acquisitions
YoY Change
Other Investing Activities	$870.0M	-$169.0M	$182.0M
YoY Change	-614.79%	-181.64%	-408.47%
Cash From Investing Activities	-$1.301B	-$1.506B	-$3.206B
YoY Change	-13.61%	58.03%	4.12%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$1.215B
YoY Change			-40600.0%
Debt Paid & Issued, Net			$500.0M
YoY Change
Cash From Financing Activities	-2.499B	-915.0M	-$3.102B
YoY Change	173.11%	51.99%	32.39%
NET CHANGE
Cash From Operating Activities	2.009B	2.500B	$7.669B
Cash From Investing Activities	-1.301B	-1.506B	-$3.206B
Cash From Financing Activities	-2.499B	-915.0M	-$3.102B
Net Change In Cash	-1.791B	79.00M	$1.361B
YoY Change	-2367.09%	-158.96%	-342.6%
FREE CASH FLOW
Cash From Operating Activities	$2.009B	$2.500B	$7.669B
Capital Expenditures	-$2.171B	-$1.337B	$4.975B
Free Cash Flow	$4.180B	$3.837B	$2.694B
YoY Change	8.94%	48.66%	113.47%

Facts In Submission

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CY2020	us-gaap	Cash Provided By Used In Operating Activities Discontinued Operations CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations	113000000	USD
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CY2019	oxy	Increase Decreasein Capital Accrual IncreaseDecreaseinCapitalAccrual	-249000000	USD
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CY2020	us-gaap	Cash Provided By Used In Investing Activities Discontinued Operations CashProvidedByUsedInInvestingActivitiesDiscontinuedOperations	-41000000	USD
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CY2020	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	134000000	USD
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CY2018	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	33000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	12000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	237000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1248000000	USD
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1845000000	USD
CY2019	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	2624000000	USD
CY2018	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	2374000000	USD
CY2020	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2019	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	257000000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	0	USD
CY2020	oxy	Payments For Contract With Customer Liability Sale Of Future Royalties Financing Activities PaymentsForContractWithCustomerLiabilitySaleOfFutureRoyaltiesFinancingActivities	386000000	USD
CY2019	oxy	Payments For Contract With Customer Liability Sale Of Future Royalties Financing Activities PaymentsForContractWithCustomerLiabilitySaleOfFutureRoyaltiesFinancingActivities	28000000	USD
CY2018	oxy	Payments For Contract With Customer Liability Sale Of Future Royalties Financing Activities PaymentsForContractWithCustomerLiabilitySaleOfFutureRoyaltiesFinancingActivities	0	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-419000000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	257000000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	9000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-4508000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	22196000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	-3102000000	USD
CY2020	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-8000000	USD
CY2019	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	-3000000	USD
CY2018	us-gaap	Cash Provided By Used In Financing Activities Discontinued Operations CashProvidedByUsedInFinancingActivitiesDiscontinuedOperations	0	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4516000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	22193000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-3102000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1380000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	541000000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	1361000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3574000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3033000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1672000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2194000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3574000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3033000000	USD
CY2020	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	3	segment
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	2100000000	USD
CY2019Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	4200000000	USD
CY2019Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	424000000	USD
CY2018Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	112000000	USD
CY2017Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	108000000	USD
CY2020	oxy	Capitalized Exploratory Well Cost Purchase Allocation CapitalizedExploratoryWellCostPurchaseAllocation	0	USD
CY2019	oxy	Capitalized Exploratory Well Cost Purchase Allocation CapitalizedExploratoryWellCostPurchaseAllocation	231000000	USD
CY2018	oxy	Capitalized Exploratory Well Cost Purchase Allocation CapitalizedExploratoryWellCostPurchaseAllocation	0	USD
CY2020	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	122000000	USD
CY2019	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	383000000	USD
CY2018	us-gaap	Capitalized Exploratory Well Cost Additions Pending Determination Of Proved Reserves CapitalizedExploratoryWellCostAdditionsPendingDeterminationOfProvedReserves	220000000	USD
CY2020	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	309000000	USD
CY2019	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	230000000	USD
CY2018	us-gaap	Reclassification To Well Facilities And Equipment Based On Determination Of Proved Reserves ReclassificationToWellFacilitiesAndEquipmentBasedOnDeterminationOfProvedReserves	198000000	USD
CY2020	us-gaap	Capitalized Exploratory Well Cost Charged To Expense1 CapitalizedExploratoryWellCostChargedToExpense1	26000000	USD
CY2019	us-gaap	Capitalized Exploratory Well Cost Charged To Expense1 CapitalizedExploratoryWellCostChargedToExpense1	72000000	USD
CY2018	us-gaap	Capitalized Exploratory Well Cost Charged To Expense1 CapitalizedExploratoryWellCostChargedToExpense1	18000000	USD
CY2020Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	211000000	USD
CY2019Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	424000000	USD
CY2018Q4	us-gaap	Capitalized Exploratory Well Costs CapitalizedExploratoryWellCosts	112000000	USD
CY2020Q4	us-gaap	Capitalized Costs Mineral Interests In Unproved Properties CapitalizedCostsMineralInterestsInUnprovedProperties	18600000000	USD
CY2019Q4	us-gaap	Capitalized Costs Mineral Interests In Unproved Properties CapitalizedCostsMineralInterestsInUnprovedProperties	29500000000	USD
CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1200000000	USD
CY2019	us-gaap	Asset Impairment Charges AssetImpairmentCharges	285000000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	461000000	USD
CY2019Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	1200000000	USD
CY2020Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	189000000	USD
CY2019Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	884000000	USD
CY2020Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	1100000000	USD
CY2019Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	641000000	USD
CY2020	oxy	Estimated Period Often Taken For Investigations And Cleanup Measures For Comprehensive Environmental Response Compensation And Liability Act National Priorities List Sites Greater Than EstimatedPeriodOftenTakenForInvestigationsAndCleanupMeasuresForComprehensiveEnvironmentalResponseCompensationAndLiabilityActNationalPrioritiesListSitesGreaterThan	P10Y
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4659000000	USD
CY2018Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	1499000000	USD
CY2020	oxy	Asset Retirement Obligation Liabilities Assumedin Business Combination AssetRetirementObligationLiabilitiesAssumedinBusinessCombination	0	USD
CY2019	oxy	Asset Retirement Obligation Liabilities Assumedin Business Combination AssetRetirementObligationLiabilitiesAssumedinBusinessCombination	3370000000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	79000000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	71000000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	186000000	USD
CY2019	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	200000000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	147000000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	131000000	USD
CY2020	oxy	Asset Retirement Obligation Acquisitions And Other AssetRetirementObligationAcquisitionsAndOther	-294000000	USD
CY2019	oxy	Asset Retirement Obligation Acquisitions And Other AssetRetirementObligationAcquisitionsAndOther	0	USD
CY2020	oxy	Asset Retirement Obligation Variable Interest Entity Lossof Control AssetRetirementObligationVariableInterestEntityLossofControl	0	USD
CY2019	oxy	Asset Retirement Obligation Variable Interest Entity Lossof Control AssetRetirementObligationVariableInterestEntityLossofControl	359000000	USD
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-275000000	USD
CY2019	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	147000000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4130000000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	4659000000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	153000000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	248000000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	1600000000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	912000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	383000000	USD
CY2020	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	83000000	USD
CY2019	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	89000000	USD
CY2018	us-gaap	Interest Costs Capitalized Adjustment InterestCostsCapitalizedAdjustment	46000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2008000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	3032000000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	170000000	USD
CY2019Q4	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	485000000	USD
CY2020Q4	oxy	Disposal Group Including Discontinued Operations Cash And Restricted Cash DisposalGroupIncludingDiscontinuedOperationsCashAndRestrictedCash	0	USD
CY2019Q4	oxy	Disposal Group Including Discontinued Operations Cash And Restricted Cash DisposalGroupIncludingDiscontinuedOperationsCashAndRestrictedCash	3000000	USD
CY2020Q4	us-gaap	Restricted Cash Equivalents Noncurrent RestrictedCashEquivalentsNoncurrent	16000000	USD
CY2019Q4	us-gaap	Restricted Cash Equivalents Noncurrent RestrictedCashEquivalentsNoncurrent	54000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2194000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	3574000000	USD
CY2019Q4	us-gaap	Proceeds From Sale Of Real Estate ProceedsFromSaleOfRealEstate	565000000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	103000000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	59000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	17130000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	19192000000	USD
CY2020	oxy	All Other Revenues AllOtherRevenues	679000000	USD
CY2019	oxy	All Other Revenues AllOtherRevenues	1719000000	USD
CY2020	us-gaap	Revenues Revenues	17809000000	USD
CY2019	us-gaap	Revenues Revenues	20911000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	17130000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	19192000000	USD
CY2020Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	70000000	USD
CY2019Q4	us-gaap	Inventory Raw Materials InventoryRawMaterials	75000000	USD
CY2020Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	848000000	USD
CY2019Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	974000000	USD
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1009000000	USD
CY2019Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	572000000	USD
CY2020Q4	us-gaap	Inventory Gross InventoryGross	1927000000	USD
CY2019Q4	us-gaap	Inventory Gross InventoryGross	1621000000	USD
CY2020Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	29000000	USD
CY2019Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	40000000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	1898000000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	1581000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	42000000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	51000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	36185000000	USD
CY2019Q4	us-gaap	Long Term Debt And Capital Lease Obligations Including Current Maturities LongTermDebtAndCapitalLeaseObligationsIncludingCurrentMaturities	38588000000	USD
CY2020Q4	oxy	Finance Lease Liability Current Maturities FinanceLeaseLiabilityCurrentMaturities	42000000	USD
CY2019Q4	oxy	Finance Lease Liability Current Maturities FinanceLeaseLiabilityCurrentMaturities	51000000	USD
CY2020Q4	oxy	Long Term Debt Current Maturities Excluding Finance Leases LongTermDebtCurrentMaturitiesExcludingFinanceLeases	398000000	USD
CY2019Q4	oxy	Long Term Debt Current Maturities Excluding Finance Leases LongTermDebtCurrentMaturitiesExcludingFinanceLeases	0	USD
CY2020Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	35200000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	398000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2100000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	900000000	USD
CY2020Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	3900000000	USD
CY2020Q4	oxy	Long Term Debt Maturity Year Five And After LongTermDebtMaturityYearFiveAndAfter	27900000000	USD
CY2019Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	37401000000	USD
CY2020Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	35235000000	USD
CY2020Q4	oxy	Variable Rate Debt As Percentage Of Long Term Debt Gross VariableRateDebtAsPercentageOfLongTermDebtGross	0.03
CY2019Q4	oxy	Variable Rate Debt As Percentage Of Long Term Debt Gross VariableRateDebtAsPercentageOfLongTermDebtGross	0.12
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	358000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1062000000	USD
CY2019Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1411000000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	365000000	USD
CY2019Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	397000000	USD
CY2020Q4	oxy	Lease Rightof Use Asset LeaseRightofUseAsset	1427000000	USD
CY2019Q4	oxy	Lease Rightof Use Asset LeaseRightofUseAsset	1808000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	473000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	579000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	42000000	USD
CY2019Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	51000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	641000000	USD
CY2019Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	872000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	316000000	USD
CY2019Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	347000000	USD
CY2020Q4	oxy	Lease Liability LeaseLiability	1472000000	USD
CY2019Q4	oxy	Lease Liability LeaseLiability	1849000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	456000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	44000000	USD
CY2020Q4	oxy	Operating And Finance Lease Liability Payments Due Year One OperatingAndFinanceLeaseLiabilityPaymentsDueYearOne	500000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	182000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	43000000	USD
CY2020Q4	oxy	Operatingand Finance Lease Liability Payments Due Year Two OperatingandFinanceLeaseLiabilityPaymentsDueYearTwo	225000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	108000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	41000000	USD
CY2020Q4	oxy	Operatingand Finance Lease Liability Payments Due Year Three OperatingandFinanceLeaseLiabilityPaymentsDueYearThree	149000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	87000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	46000000	USD
CY2020Q4	oxy	Operatingand Finance Lease Liability Payments Due Year Four OperatingandFinanceLeaseLiabilityPaymentsDueYearFour	133000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	71000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	30000000	USD
CY2020Q4	oxy	Operatingand Finance Lease Liability Payments Due Year Five OperatingandFinanceLeaseLiabilityPaymentsDueYearFive	101000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	385000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	231000000	USD
CY2020Q4	oxy	Operatingand Finance Lease Liability Payments Dueafter Year Five OperatingandFinanceLeaseLiabilityPaymentsDueafterYearFive	616000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1289000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	435000000	USD
CY2020Q4	oxy	Operatingand Finance Lease Liability Payments Due OperatingandFinanceLeaseLiabilityPaymentsDue	1724000000	USD
CY2020Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	175000000	USD
CY2020Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	77000000	USD
CY2020Q4	oxy	Operatingand Finance Lease Liability Undiscounted Excess Amount OperatingandFinanceLeaseLiabilityUndiscountedExcessAmount	252000000	USD
CY2020Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1114000000	USD
CY2020Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	358000000	USD
CY2020Q4	oxy	Operatingand Finance Lease Liability OperatingandFinanceLeaseLiability	1472000000	USD
CY2020Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P6Y2M12D
CY2020Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0473
CY2020Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P10Y7M6D
CY2020Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0347
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	29000000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	19000000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	14000000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	2000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	904000000	USD
CY2019	us-gaap	Lease Cost LeaseCost	953000000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	207000000	USD
CY2019	us-gaap	Short Term Lease Cost ShortTermLeaseCost	404000000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	95000000	USD
CY2019	us-gaap	Variable Lease Cost VariableLeaseCost	162000000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	506000000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	262000000	USD
CY2020	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	89000000	USD
CY2019	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	112000000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	29000000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	19000000	USD
CY2020	us-gaap	Proceeds From Derivative Instrument Investing Activities ProceedsFromDerivativeInstrumentInvestingActivities	960000000	USD
CY2020Q4	oxy	Environmental Remediation Sites Number EnvironmentalRemediationSitesNumber	170	site
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	123000000	USD
CY2019Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	162000000	USD
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	1030000000.00	USD
CY2019Q4	us-gaap	Accrued Environmental Loss Contingencies Noncurrent AccruedEnvironmentalLossContingenciesNoncurrent	1040000000.00	USD
CY2020Q4	oxy	Environmental Remediation Sites Number EnvironmentalRemediationSitesNumber	170	site
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	1151000000	USD
CY2019Q4	oxy	Environmental Remediation Sites Number EnvironmentalRemediationSitesNumber	177	site
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	1197000000	USD
CY2020Q4	oxy	Environmental Reserves Exceeding Ten Million Threshold Value Site Category EnvironmentalReservesExceedingTenMillionThresholdValueSiteCategory	10000000	USD
CY2020Q4	oxy	Environmental Reserves Exceeding Ten Million Site Category Number Of Sites EnvironmentalReservesExceedingTenMillionSiteCategoryNumberOfSites	19	site
CY2020Q4	oxy	Environmental Remediation Sites Number EnvironmentalRemediationSitesNumber	170	site
CY2020Q4	oxy	Environmental Reserves Range Between Zero To One Million Site Category Number Of Sites EnvironmentalReservesRangeBetweenZeroToOneMillionSiteCategoryNumberOfSites	96	site
CY2020	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	36000000	USD
CY2019	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	112000000	USD
CY2018	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	47000000	USD
CY2020	oxy	Percent Of Environmental Reserves To Be Funded In Three To Four Years PercentOfEnvironmentalReservesToBeFundedInThreeToFourYears	0.45
CY2020	oxy	Minimum Period Of Expending Second Half Of Environmental Reserves MinimumPeriodOfExpendingSecondHalfOfEnvironmentalReserves	P10Y
CY2020Q4	oxy	Environmental Remediation Possible Additional Loss Beyond Accruals EnvironmentalRemediationPossibleAdditionalLossBeyondAccruals	1100000000	USD
CY2018Q4	oxy	Loss Contingency Potential Income Tax Expense Benefit LossContingencyPotentialIncomeTaxExpenseBenefit	925000000	USD
CY2020Q4	us-gaap	Purchase Obligation PurchaseObligation	13200000000	USD
CY2020Q4	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	2800000000	USD
CY2020Q4	us-gaap	Purchase Obligation Due In Second And Third Year PurchaseObligationDueInSecondAndThirdYear	4400000000	USD
CY2020Q4	us-gaap	Purchase Obligation Due In Fourth And Fifth Year PurchaseObligationDueInFourthAndFifthYear	3000000000.0	USD
CY2020Q4	oxy	Purchase Obligation Duein Fifth Yearand Thereafter PurchaseObligationDueinFifthYearandThereafter	3000000000.0	USD
CY2020	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestmentsDomestic	-15322000000	USD
CY2019	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestmentsDomestic	-1632000000	USD
CY2018	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestmentsDomestic	3431000000	USD
CY2020	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestmentsForeign	-383000000	USD
CY2019	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestmentsForeign	1986000000	USD
CY2018	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestmentsForeign	2177000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-15705000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	354000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	5608000000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-126000000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	33000000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-23000000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	6000000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	46000000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	52000000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	465000000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1809000000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1077000000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	345000000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1888000000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1106000000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2384000000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-130000000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	422000000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-103000000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	17000000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	12000000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-30000000	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-914000000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-63000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2517000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-1027000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	371000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2172000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	861000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1477000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.21
CY2020	oxy	Effective Income Tax Rate Reconciliation Enhanced Oil Recovery Credit EffectiveIncomeTaxRateReconciliationEnhancedOilRecoveryCredit	0
CY2019	oxy	Effective Income Tax Rate Reconciliation Enhanced Oil Recovery Credit EffectiveIncomeTaxRateReconciliationEnhancedOilRecoveryCredit	-0.02
CY2018	oxy	Effective Income Tax Rate Reconciliation Enhanced Oil Recovery Credit EffectiveIncomeTaxRateReconciliationEnhancedOilRecoveryCredit	-0.03
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	-0.03
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0
CY2020	oxy	Effective Income Tax Rate Reconciliation Due To Reversal Of Indefinite Reinvestment Assertion Percent EffectiveIncomeTaxRateReconciliationDueToReversalOfIndefiniteReinvestmentAssertionPercent	0
CY2019	oxy	Effective Income Tax Rate Reconciliation Due To Reversal Of Indefinite Reinvestment Assertion Percent EffectiveIncomeTaxRateReconciliationDueToReversalOfIndefiniteReinvestmentAssertionPercent	0
CY2018	oxy	Effective Income Tax Rate Reconciliation Due To Reversal Of Indefinite Reinvestment Assertion Percent EffectiveIncomeTaxRateReconciliationDueToReversalOfIndefiniteReinvestmentAssertionPercent	-0.02
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.04
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	1.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	0.11
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.14
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.01
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0.07
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies EffectiveIncomeTaxRateReconciliationTaxContingencies	0
CY2020	oxy	Effective Income Tax Rate Reconciliation Business Acquisition Transaction Costs Percent EffectiveIncomeTaxRateReconciliationBusinessAcquisitionTransactionCostsPercent	0
CY2019	oxy	Effective Income Tax Rate Reconciliation Business Acquisition Transaction Costs Percent EffectiveIncomeTaxRateReconciliationBusinessAcquisitionTransactionCostsPercent	0.10
CY2018	oxy	Effective Income Tax Rate Reconciliation Business Acquisition Transaction Costs Percent EffectiveIncomeTaxRateReconciliationBusinessAcquisitionTransactionCostsPercent	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	-0.08
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Minority Interest Income Expense EffectiveIncomeTaxRateReconciliationMinorityInterestIncomeExpense	0
CY2020	oxy	Effective Income Tax Rate Reconciliation Executive Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationLimitationPercent	0
CY2019	oxy	Effective Income Tax Rate Reconciliation Executive Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationLimitationPercent	0.12
CY2018	oxy	Effective Income Tax Rate Reconciliation Executive Compensation Limitation Percent EffectiveIncomeTaxRateReconciliationExecutiveCompensationLimitationPercent	0
CY2020	oxy	Effective Income Tax Rate Reconciliation Stock Warrants Percent EffectiveIncomeTaxRateReconciliationStockWarrantsPercent	0
CY2019	oxy	Effective Income Tax Rate Reconciliation Stock Warrants Percent EffectiveIncomeTaxRateReconciliationStockWarrantsPercent	-0.05
CY2018	oxy	Effective Income Tax Rate Reconciliation Stock Warrants Percent EffectiveIncomeTaxRateReconciliationStockWarrantsPercent	0
CY2020	oxy	Effective Income Tax Rate Reconciliation Lossof Controlin Equity Method Investment Percent EffectiveIncomeTaxRateReconciliationLossofControlinEquityMethodInvestmentPercent	0
CY2019	oxy	Effective Income Tax Rate Reconciliation Lossof Controlin Equity Method Investment Percent EffectiveIncomeTaxRateReconciliationLossofControlinEquityMethodInvestmentPercent	0.58
CY2018	oxy	Effective Income Tax Rate Reconciliation Lossof Controlin Equity Method Investment Percent EffectiveIncomeTaxRateReconciliationLossofControlinEquityMethodInvestmentPercent	0
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.01
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.02
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.14
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	2.43
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.26
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.14
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	10744000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12375000000	USD
CY2020Q4	oxy	Deferred Tax Liabilities Equity Investments Partnerships And Foreign Subsidiaries DeferredTaxLiabilitiesEquityInvestmentsPartnershipsAndForeignSubsidiaries	658000000	USD
CY2019Q4	oxy	Deferred Tax Liabilities Equity Investments Partnerships And Foreign Subsidiaries DeferredTaxLiabilitiesEquityInvestmentsPartnershipsAndForeignSubsidiaries	989000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11402000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13364000000	USD
CY2020Q4	oxy	Deferred Tax Assets Environmental Reserves DeferredTaxAssetsEnvironmentalReserves	257000000	USD
CY2019Q4	oxy	Deferred Tax Assets Environmental Reserves DeferredTaxAssetsEnvironmentalReserves	261000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	398000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	441000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	186000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	266000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	942000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Asset Retirement Obligations DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAssetRetirementObligations	906000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	4465000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	4379000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	607000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	443000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	1797000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	692000000	USD
CY2020Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	668000000	USD
CY2019Q4	us-gaap	Deferred Tax Asset Interest Carryforward DeferredTaxAssetInterestCarryforward	492000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	720000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	782000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	10040000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	8662000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5695000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	4959000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	4345000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	3703000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	7057000000	USD
CY2019Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	9661000000	USD
CY2020Q4	oxy	Deferred Tax Asset Foreign Longterm Receivablesand Noncurrent Assets Net DeferredTaxAssetForeignLongtermReceivablesandNoncurrentAssetsNet	56000000	USD
CY2019Q4	oxy	Deferred Tax Asset Foreign Longterm Receivablesand Noncurrent Assets Net DeferredTaxAssetForeignLongtermReceivablesandNoncurrentAssetsNet	56000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	7113000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	9717000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	4300000000	USD
CY2019Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	3700000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	11400000000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13400000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Foreign DeferredTaxAssetsTaxCreditCarryforwardsForeign	4500000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards General Business DeferredTaxAssetsTaxCreditCarryforwardsGeneralBusiness	607000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Undistributed Foreign Earnings DeferredTaxLiabilitiesUndistributedForeignEarnings	930000000	USD
CY2020Q4	oxy	Deferred Tax Liabilities Undistributed Foreign Earnings Additional Amount Required DeferredTaxLiabilitiesUndistributedForeignEarningsAdditionalAmountRequired	214000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2173000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2017Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	22000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	0	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	2143000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Acquisition UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	14000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	30000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	42000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	22000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	100000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2045000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2173000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	2000000000.0	USD
CY2020Q4	oxy	Unrecognized Tax Benefits Potential Benefit UnrecognizedTaxBenefitsPotentialBenefit	2000000000.0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	1600000000	USD
CY2020Q4	us-gaap	Significant Change In Unrecognized Tax Benefits Is Reasonably Possible Amount Of Unrecorded Benefit SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit	84000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	67000000	USD
CY2020Q4	oxy	Unrecognized Tax Benefits Cumulative Interest On Income Taxes Accrued UnrecognizedTaxBenefitsCumulativeInterestOnIncomeTaxesAccrued	263000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	0	USD
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	893469000	shares
CY2018	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	1628000	shares
CY2018	oxy	Stock Issued During Period Shares Stock Options Exercised And Other StockIssuedDuringPeriodSharesStockOptionsExercisedAndOther	19000	shares
CY2018Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	895116000	shares
CY2019	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	3188000	shares
CY2019	oxy	Stock Issued During Period Shares Stock Options Exercised And Other StockIssuedDuringPeriodSharesStockOptionsExercisedAndOther	146131000	shares
CY2019Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	1044435000	shares
CY2020	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	36130000	shares
CY2020	us-gaap	Stock Issued During Period Shares Acquisitions StockIssuedDuringPeriodSharesAcquisitions	0	shares
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	1080565000	shares
CY2020Q4	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	185000000	shares
CY2020Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	44200000	shares
CY2020	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0	shares
CY2019	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	2700000	shares
CY2019	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	66.94
CY2018	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	16900000	shares
CY2018	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	74.92
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	149100000	shares
CY2019Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	150300000	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	145700000	shares
CY2020Q1	oxy	Preferred Stock Dividend Volume Weighted Average Price PreferredStockDividendVolumeWeightedAveragePrice	0.90
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CY2020Q1	oxy	Preferred Stock Dividend Volume Weighted Average Price Calculation Period PreferredStockDividendVolumeWeightedAveragePriceCalculationPeriod	P10D
CY2020Q2	oxy	Preferred Stock Dividend Volume Weighted Average Price Calculation Period PreferredStockDividendVolumeWeightedAveragePriceCalculationPeriod	P10D
CY2020Q2	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	17300000	shares
CY2020Q3	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	11600000	shares
CY2020Q4	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	200000000	USD
CY2019Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	100000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	100000	shares
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	100000	shares
CY2019Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	100000	shares
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-13533000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-507000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4131000000	USD
CY2020	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-1298000000	USD
CY2019	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	-15000000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	0	USD
CY2020	us-gaap	Profit Loss ProfitLoss	-14831000000	USD
CY2019	us-gaap	Profit Loss ProfitLoss	-522000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	4131000000	USD
CY2020	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2019	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	145000000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	0	USD
CY2020	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	844000000	USD
CY2019	us-gaap	Preferred Stock Dividends And Other Adjustments PreferredStockDividendsAndOtherAdjustments	318000000	USD
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CY2020	oxy	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	-15675000000	USD
CY2019	oxy	Net Income Loss Attributable To Common Stockholders NetIncomeLossAttributableToCommonStockholders	-985000000	USD
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CY2019	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	0	USD
CY2018	us-gaap	Undistributed Earnings Loss Allocated To Participating Securities Basic UndistributedEarningsLossAllocatedToParticipatingSecuritiesBasic	17000000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-15675000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-985000000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4114000000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	918700000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	809500000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	761700000	shares
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-17.06
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.22
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.40
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-15675000000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-985000000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	4114000000	USD
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	918700000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	809500000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	761700000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	0	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	1600000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	918700000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	809500000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	763300000	shares
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-17.06
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.22
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.39
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	133000000	shares
CY2020Q4	oxy	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Awarded ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAwarded	11600000	shares
CY2020	oxy	Stock Issued During Period Number Of Shares Counted Against Issued Share Based Compensation StockIssuedDuringPeriodNumberOfSharesCountedAgainstIssuedShareBasedCompensation	3	shares
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	202000000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	208000000	USD
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	180000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	42000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	43000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	47000000	USD
CY2020Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	254000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y8M12D
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	3.19
CY2020Q4	oxy	Supplemental Retirement Plan Supplemental Retirement Plan Accrued Liabilities SupplementalRetirementPlanSupplementalRetirementPlanAccruedLiabilities	239000000	USD
CY2019Q4	oxy	Supplemental Retirement Plan Supplemental Retirement Plan Accrued Liabilities SupplementalRetirementPlanSupplementalRetirementPlanAccruedLiabilities	261000000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	192000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	192000000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	152000000	USD
CY2020	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	235000000	USD
CY2019	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	220000000	USD
CY2018	us-gaap	Other Postretirement Benefit Expense OtherPostretirementBenefitExpense	182000000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	3300000000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	6400000000	USD
CY2019	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	691000000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	3250000000	USD
CY2020	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	678000000	USD
CY2019	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	422000000	USD
CY2018	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	329000000	USD
CY2020Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	-166000000	USD
CY2019Q4	us-gaap	Retained Earnings Undistributed Earnings From Equity Method Investees RetainedEarningsUndistributedEarningsFromEquityMethodInvestees	-40000000	USD
CY2020Q4	us-gaap	Equity Method Investment Difference Between Carrying Amount And Underlying Equity EquityMethodInvestmentDifferenceBetweenCarryingAmountAndUnderlyingEquity	649000000	USD
CY2018	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	805000000	USD
CY2020Q4	oxy	Equity Method Investment Difference Between Carrying Amountand Underlying Equity Relatedto Goodwill EquityMethodInvestmentDifferenceBetweenCarryingAmountandUnderlyingEquityRelatedtoGoodwill	326000000	USD
CY2020	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	301000000	USD
CY2020	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	1112000000	USD
CY2019	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	463000000	USD
CY2018	us-gaap	Related Party Transaction Purchases From Related Party RelatedPartyTransactionPurchasesFromRelatedParty	502000000	USD
CY2020	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	1032000000	USD
CY2019	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	28000000	USD
CY2018	us-gaap	Related Party Transaction Amounts Of Transaction RelatedPartyTransactionAmountsOfTransaction	52000000	USD
CY2020Q4	us-gaap	Due From Related Parties DueFromRelatedParties	54000000	USD
CY2019Q4	us-gaap	Due From Related Parties DueFromRelatedParties	133000000	USD
CY2018Q4	us-gaap	Due From Related Parties DueFromRelatedParties	63000000	USD
CY2020Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	273000000	USD
CY2019Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	463000000	USD
CY2018Q4	us-gaap	Due To Related Parties Current And Noncurrent DueToRelatedPartiesCurrentAndNoncurrent	46000000	USD
CY2020Q1	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	1200000000	USD
CY2020Q2	us-gaap	Asset Impairment Charges AssetImpairmentCharges	8600000000	USD
CY2019	oxy	Pretax Impairmentand Related Charges Domestic Undeveloped Leases PretaxImpairmentandRelatedChargesDomesticUndevelopedLeases	285000000	USD
CY2020	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	3	segment
CY2020	us-gaap	Revenues Revenues	17809000000	USD
CY2020	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestments	-15705000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2172000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-13533000000	USD
CY2020Q4	us-gaap	Equity Method Investments EquityMethodInvestments	3250000000	USD
CY2020	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	2619000000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	8097000000	USD
CY2020Q4	us-gaap	Assets Assets	80064000000	USD
CY2019	us-gaap	Revenues Revenues	20911000000	USD
CY2019	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestments	354000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	861000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	-507000000	USD
CY2019Q4	us-gaap	Equity Method Investments EquityMethodInvestments	6389000000	USD
CY2019	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	6453000000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	6140000000	USD
CY2019Q4	us-gaap	Assets Assets	107190000000	USD
CY2018	us-gaap	Revenues Revenues	17824000000	USD
CY2018	oxy	Income Loss From Continuing Operations Before Income Taxes After Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesAfterIncomeLossFromEquityMethodInvestments	5608000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1477000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	4131000000	USD
CY2018Q4	us-gaap	Equity Method Investments EquityMethodInvestments	1680000000	USD
CY2019	oxy	Business Acquisition Crucial Seismic Data Costs BusinessAcquisitionCrucialSeismicDataCosts	401000000	USD
CY2018	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	5020000000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	3977000000	USD
CY2019Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Transaction Costs BusinessAcquisitionCostOfAcquiredEntityTransactionCosts	213000000	USD
CY2020	oxy	Pre Tax Adjustments Tax Effect PreTaxAdjustmentsTaxEffect	-1900000000	USD
CY2018Q4	us-gaap	Assets Assets	42159000000	USD
CY2019	us-gaap	Severance Costs1 SeveranceCosts1	1000000000.0	USD
CY2019	oxy	Pre Tax Adjustments Tax Effect PreTaxAdjustmentsTaxEffect	-245000000	USD
CY2018	oxy	Pre Tax Adjustments Tax Effect PreTaxAdjustmentsTaxEffect	198000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	65889000000	USD
CY2019Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	82230000000	USD
CY2018Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	31437000000	USD

Files In Submission

Name	View Source	Status
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0000797468-21-000009-index.html	Edgar Link	pending
0000797468-21-000009.txt	Edgar Link	pending
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$OXY
Occidental Petroleum Corp Stock $oxy

2019 Q4 Form 10-K Financial Statement

#000079746821000009 Filed on February 26, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OXY Occidental Petroleum Corp Stock $oxy

2019 Q4 Form 10-K Financial Statement

#000079746821000009 Filed on February 26, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OXY
Occidental Petroleum Corp Stock $oxy