Total investments at fair value Plan interest in master trust accounts, at fair value Assets at fair value EBP, Investment, Fair Value Maximum Maximum [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Subsequent Event Subsequent Event [Member] Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Accrued expenses EBP, Accrued Expense Investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Investment Income (Loss), after Investment Expense Subsequent Event Type [Domain] Subsequent Event Type [Domain] Primary residence loan term, minimum EBP, Note Receivable From Participant, Account, Primary Residence, Minimum Borrowing Term EBP, Note Receivable From Participant, Account, Primary Residence, Minimum Borrowing Term Plan's Interest in Master Trust Balances EBP, Nonconsolidated, Plan Interest in Master Trust [Member] Highly compensated employees, employee contribution percentage limit EBP, Highly Compensated Participant Contribution, Pretax, Maximum Annual Compensation To Total Compensation, Percentage EBP, Highly Compensated Participant Contribution, Pretax, Maximum Annual Compensation To Total Compensation, Percentage Monthly payroll deductions for repayment, percentage of monthly base compensation EBP, Note Receivable From Participant, Monthly Payroll Deduction, Monthly Compensation, Maximum Percentage EBP, Note Receivable From Participant, Monthly Payroll Deduction, Monthly Compensation, Maximum Percentage EBP, Reconciliation of Financial Statement to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] GIC MTIA Guaranteed Investment Contracts Master Trust Investment Account [Member] Guaranteed Investment Contracts Master Trust Investment Account Total liabilities EBP, Liability Amendment Flag Amendment Flag EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] EBP, Description of Plan and Accounting Change [Abstract] Receivables: EBP, Receivable [Abstract] Schedule of Fair Value Measurement EBP, Investment, Fair Value and NAV [Table Text Block] DCP Master Trust Defined Contribution Plan Master Trust [Member] Defined Contribution Plan Master Trust Investments [Domain] Investments [Domain] Plan interest in master trust accounts EBP, Investment, Plan Interest in Master Trust, Contract Value Amounts allocated to withdrawing participants at December 31, 2025 and 2024 EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid Non-highly compensated employees, employee contribution percentage limit EBP, Not Highly Compensated Participant Contribution, Pretax, Maximum Annual Compensation To Total Compensation, Percentage EBP, Not Highly Compensated Participant Contribution, Pretax, Maximum Annual Compensation To Total Compensation, Percentage EBP, Schedule of Reportable Transaction [Abstract] Total contributions Contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Participant EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover EBP, Stock Fund, Name [Axis] EBP, Stock Fund, Name [Axis] EBP, Stock Fund, Name Net assets available for benefits: EBP, Net Asset Available For Benefit [Abstract] EBP, Net Asset Available For Benefit Net depreciation in fair value of investments Net appreciation EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Plan number EBP, Plan Number Schedule H, Line 4j – Schedule of Reportable Transactions EBP, Schedule of Reportable Transaction [Text Block] Contributions EBP, Contribution [Policy Text Block] EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Second percentage of eligible compensation EBP, Employer Contribution, Second Participant Compensation Matched, Percentage EBP, Employer Contribution, Second Participant Compensation Matched, Percentage EBP, Schedule of Reportable Transaction [Table] EBP, Schedule of Reportable Transaction [Table] Total EBP, Asset Held for Investment Document Information [Line Items] Document Information [Line Items] Plan Interest in Master Trust Accounts EBP, Master Trust [Text Block] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Net increase EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Related-Party Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Related Party and Party-in-Interest Transactions [Abstract] Total receivables EBP, Receivable Employer contribution EBP, Employer Contribution, Receivable Before-tax contribution amount, percent of base pay EBP, Participant Contribution, Automatic, Deferral Rate Cost (in shares) EBP, Asset Held for Investment, Participant Loan, Cost EBP, Asset Held for Investment, Participant Loan, Cost Benefits paid to participants Benefits paid to participants Benefits paid to participants per the financial statements EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Plan interest in master trust accounts EBP, Investment, Plan Interest in Master Trust, Fair Value EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] Schedule of Guaranteed Investment Contracts Master Trust Account EBP, Fully Benefit-Responsive Investment Contract [Table Text Block] Cash and cash equivalents EBP, Noninterest-Bearing Cash EBP, Master Trust [Table] EBP, Master Trust [Table] Participant contribution EBP, Participant Contribution, Receivable Total Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Document Type Document Type Less investment expenses EBP, Change in Net Asset Available for Benefit, Decrease from Investment Expense Interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Investments: EBP, Investment, Fair and Contract Value [Abstract] Common/collective trusts Common Collective Trust [Member] EBP, Subsequent Event [Table] EBP, Subsequent Event [Table] Deductions: EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Notes receivable from participants EBP, Note Receivable from Participant Entity Registrant Name Entity Registrant Name EBP, Master Trust, Name [Domain] EBP, Master Trust, Name [Domain] EBP, Master Trust, Name [Domain] Schedule of Master Trust Net Assets EBP, Master Trust [Table Text Block] Liabilities: EBP, Liability [Abstract] EBP, Subsequent Event [Abstract] Purchase Price EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Purchase Price EBP, Master Trust, Name [Axis] EBP, Master Trust, Name [Axis] EBP, Master Trust, Name Percent of investments in shares of common stock EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Total Investments, Percentage Notes Receivable From Participants EBP, Note Receivable from Participant [Policy Text Block] Loan term, maximum EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term Total investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Amounts allocated to withdrawing participants at December 31, 2024 and 2023 EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Net assets available for benefits Beginning of year End of year Net assets available for benefits per the financial statements EBP, Net Asset Available for Benefit Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Net assets available for benefits per the Form 5500 EBP, Form 5500 Caption, Net Assets NAV Fair Value Measured at Net Asset Value Per Share [Member] Plan's percentage interest in Master Trust net assets EBP, Interest in Master Trust, Percentage EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Entity tax identification number Entity Tax Identification Number Participant rollovers EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Oxy Stock Fund Oxy Stock Fund [Member] Oxy Stock Fund Legal Entity [Axis] Legal Entity [Axis] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Mutual funds Mutual Fund [Member] Selling Price EBP, Investment Sold, Excluding Plan Interest in Master Trust, Selling Price EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] Maximum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Minimum borrowing amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount EBP, Fully Benefit-Responsive Investment Contract [Abstract] Short-term investment fund and common stock EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Level 1 Fair Value, Inputs, Level 1 [Member] Oxy Stock Fund EBP, Common Stock [Text Block] EBP, Common Stock Guaranteed Investment Contracts Master Trust Account EBP, Fully Benefit-Responsive Investment Contract [Text Block] First employer matching percentage EBP, Employer Contribution, First Matching Percentage EBP, Employer Contribution, First Matching Percentage EBP, Investment, Fair Value and NAV [Abstract] Average WTI price per barrel EBP, Risk And Uncertainty, Average WTI Price EBP, Risk And Uncertainty, Average WTI Price EBP, Stock Fund, Name [Domain] EBP, Stock Fund, Name [Domain] EBP, Stock Fund, Name [Domain] Total assets EBP, Asset Assets: Net assets: EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Changes to net assets attributable to: Changes in net assets: Net appreciation in fair value of investments: EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Payment of Benefits EBP, Payment to Participant [Policy Text Block] EBP, Master Trust [Line Items] EBP, Master Trust [Line Items] Plan interest in master trust accounts EBP, Asset Held for Investment, Plan Interest in Master Trust, Current Value Basis of Accounting EBP, Basis of Accounting [Policy Text Block] Number of units (in shares) EBP, Investment, Number of Shares Second employer matching percentage EBP, Employer Contribution, Second Matching Percentage EBP, Employer Contribution, Second Matching Percentage EBP, Master Trust [Abstract] Use of Estimates EBP, Use of Estimate [Policy Text Block] Schedule H, Line 4i – Schedule of Assets (Held At End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] Risks and Uncertainties EBP, Risk and Uncertainty [Text Block] Amounts allocated to withdrawing participants EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid Employer EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Primary residence loan term, maximum EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term Minimum Minimum [Member] Interest and dividends Accrued investment income EBP, Investment Income, Receivable Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Investment Type [Axis] Investment Type [Axis] Interest and dividends EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP 001 EBP 001 [Member] EBP 001 EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Description of the Plan EBP, Description of Plan [Text Block] Current Value of Asset on Transaction Date EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Current Value EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Interest EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Investment EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Domain] Common stock EBP, Employer, Common Stock [Member] Administrative expenses EBP, Administrative Expenses EBP, Administrative Expenses Investment income (loss): EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Short-term investment fund Short-Term Investments [Member] Investment, Identifier [Axis] Investment, Identifier [Axis] Administrative expenses Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Transfers out EBP, Change in Net Asset Available For Benefit, Transfer From Plan EBP, Change in Net Asset Available For Benefit, Transfer From Plan Total investments Plan interest in master trust accounts, at contract value EBP, Investment, Contract Value Loan term, minimum EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Table] Reclassifications EBP, Reclassifications [Policy Text Block] EBP, Reclassifications EBP, Schedule of Reportable Transaction [Line Items] EBP, Schedule of Reportable Transaction [Line Items] Percentage of eligible compensation EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] EBP, Tax Status [Table] EBP, Tax Status [Table] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] At fair value: EBP, Investment, Fair Value [Abstract] Dividends EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Investment, excluding plan interest in master trust EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] At contract value: EBP, Investment, Contract Value [Abstract] Due to broker for securities purchased EBP, Liability for Investment Purchase EBP, Tax Status [Abstract] Schedule of Net Assets EBP, Contribution [Table Text Block] Plan interest in master trust accounts investment income Transfers between funds EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Change in Plan Interest in Master Trust EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] Transfers in EBP, Change In Net Asset Available For Benefit, Transfer To Plan EBP, Change In Net Asset Available For Benefit, Transfer To Plan Benefits paid to participants per the Form 5500 EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits Reconciliation of the Financial Statements to the Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Notes receivable from participants EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Investment Valuation and Income Recognition EBP, Investment [Policy Text Block] Number of participant loans EBP, Asset Held For Investment, Participant Loan, Number EBP, Asset Held For Investment, Participant Loan, Number Interest Income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Investment Income (Loss), before Investment Expense Plan Termination EBP, Plan Termination [Text Block] Entity Central Index Key Entity Central Index Key EBP, Risk and Uncertainty [Abstract] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] Master Trust Balances EBP, Nonconsolidated, Master Trust [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Summary of Significant Accounting Policies EBP, Summary of Accounting Policy [Text Block] Cost of Asset EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost Subsequent Events EBP, Subsequent Event [Text Block] Tax Status EBP, Tax Status [Text Block] First percentage of eligible compensation EBP, Employer Contribution, First Participant Compensation Matched, Percentage EBP, Employer Contribution, First Participant Compensation Matched, Percentage Maximum borrowing amount, percentage of total vested account balance EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage EBP, Subsequent Event [Line Items] EBP, Subsequent Event [Line Items] Document Information [Table] Document Information [Table] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis] EBP, Nonconsolidated, Master Trust and Plan Interest in Master Trust [Axis] Entity [Domain] Entity [Domain] Employer matching contributions EBP, Employer Contribution, Matching Percentage EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table]