Revision of Prior Period [Axis] Revision of Prior Period [Axis] After the Second Anniversary Date, Before Third Anniversary Date Debt Instrument, Redemption, Period Four [Member] Commodity Contracts Commodity Contract [Member] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets SoCal Border - Natural Gas Q2 2026 SoCal Border - Natural Gas Q2 2026 [Member] SoCal Border - Natural Gas Q2 2026 Schedule of Estimated Future Undiscounted Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Net loss on natural gas purchase derivatives Net loss on natural gas purchase derivatives Derivative, Gain (Loss) On Natural Gas Purchase Derivatives Derivative, Gain (Loss) On Natural Gas Purchase Derivatives Award Timing Predetermined Award Timing Predetermined [Flag] Entity File Number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Non-cash loss (gain) on natural gas purchase derivatives Unrealized Gain (Loss) On Natural Gas Purchase Derivatives, Portion Attributable To Parent Unrealized Gain (Loss) On Natural Gas Purchase Derivatives, Portion Attributable To Parent Tabular List, Table Tabular List [Table Text Block] Target allocation of plan assets Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Income tax (provision) benefit Other Comprehensive Income (Loss), Tax Recently Issued but not Adopted Accounting and Disclosure Changes New Accounting Pronouncements, Policy [Policy Text Block] Unallocated amounts Income (Loss) From Unallocated Amounts Income (Loss) From Unallocated Amounts Reimbursement for abandonment work Equity Method Investment, Reimbursement Amount Equity Method Investment, Reimbursement Amount Settlement of debt Business Combination, Consideration Transferred, Liabilities Incurred Share-Based Payment Arrangement Share-Based Payment Arrangement [Member] Gas plant and power plant assets Gas Plant And Power Plant Assets [Member] Assets used in gas plant and power plant. Measurement Basis [Axis] Measurement Basis [Axis] Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Other Other Assets, Miscellaneous, Current REVENUE Revenue from Contract with Customer [Text Block] Fair value of derivative contracts Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Fair Value Of Derivative Contracts Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Fair Value Of Derivative Contracts Oxy Occidental Petroleum Corporation [Member] Occidental Petroleum Corporation Shares issued under ESPP (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Area of real estate property Area of Real Estate Property Current tax provision Current Income Tax Expense (Benefit) SoCal Border - Natural Gas 2027 SoCal Border - Natural Gas 2027 [Member] Swap - Natural Gas 2027 Other Other Assets, Miscellaneous, Noncurrent Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk percentage Concentration Risk, Percentage Projected healthcare cost rate in tenth year and thereafter Defined Benefit Plan, Health Care Cost Trend Rate On Tenth Year And Thereafter Defined Benefit Plan, Health Care Cost Trend Rate On Tenth Year And Thereafter Pension Benefits Pension Plan [Member] Unamortized debt discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Employee Stock Option Share-Based Payment Arrangement, Option [Member] Thereafter Contractual Obligation, to be Paid, after Year Five Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Total taxes paid Income Taxes Paid Finance Lease, Liability, Noncurrent, Statement of Financial Position Flag Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Recognition of prior service credit due to curtailment Accumulated Defined Benefit Plans Adjustment, Recognition Of Prior Service Attributable To Parent, Due To Curtailment [Member] Accumulated Defined Benefit Plans Adjustment, Recognition Of Prior Service Attributable To Parent, Due To Curtailment Percent Effective Income Tax Rate Reconciliation, Percent [Abstract] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Cash dividends Dividends, Common Stock, Cash Asset impairment Asset impairments Asset Impairment Charges Total stockholders' equity Beginning balance Ending balance Total equity Equity, Attributable to Parent Line of credit facility, commitment fee amount, writeoff Line Of Credit Facility, Commitment Fee Amount, Writeoff Line Of Credit Facility, Commitment Fee Amount, Writeoff Insider Trading Policies and Procedures [Line Items] Schedule of Property, Plant and Equipment, Net Property, Plant and Equipment [Table Text Block] Common stock, authorized (in shares) Common Stock, Shares Authorized Asset Class: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Electrical output sold, number of plants Electrical Output Sold, Number Of Plants Electrical Output Sold, Number Of Plants Measurement period adjustments, net Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accretion Expense And Depreciation, Depletion And Amortization Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accretion Expense And Depreciation, Depletion And Amortization Concentration of Customers Concentration Risk, Credit Risk, Policy [Policy Text Block] State and local State and Local Jurisdiction [Member] Cover [Abstract] Cover [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Maximum Maximum [Member] Typical term of payment following invoicing Term of Payment after Invoicing for Contracts with Customers Term of payment following invoicing for contracts with customers, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Recognition of net actuarial gain due to settlement Other Comprehensive Income (Loss), Defined Benefit Plan, Prior Service Cost (Credit), Settlement, Gain (Loss), After Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Prior Service Cost (Credit), Settlement, Gain (Loss), After Tax Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Actuarial gain (loss) associated with pension and postretirement plans, tax Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax Asset retirement obligation, accretion expense, measurement period adjustments Asset Retirement Obligation, Accretion Expense, Measurement Period Adjustments Asset Retirement Obligation, Accretion Expense, Measurement Period Adjustments Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Borrowing base Line Of Credit Facility, Borrowing Base The amount of money that maybe borrowed based on the value of the collateral the entity pledges. Line of credit facility, accordion feature, increase limit Line Of Credit Facility, Accordion Feature, Increase Limit Line Of Credit Facility, Accordion Feature, Increase Limit Retirement Benefits [Abstract] Retirement Benefits [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Other noncurrent assets Other Assets [Member] Prior to 90 Days Debt Instrument, Redemption, Period One [Member] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Percentage of payouts target awards Percent Of Target Award That Would Settle Fully Stock Percent of the target award that would settle, once certified, fully in stock, including awards that were originally designated to settle in cash but were modified to settle in stocks. Barrels per day (in barrels) Derivative, Nonmonetary Notional Amount, Volume INCOME BEFORE INCOME TAXES Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Equity Method Investments [Roll Forward] Equity Method Investments [Roll Forward] Equity Method Investments Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Purchased Puts - Crude Oil Q4 2026 Purchased Puts - Crude Oil Q4 2026 [Member] Purchased Puts - Crude Oil Q4 2026 Proceeds from issuance of debt Proceeds from Issuance of Debt Other profit or loss Income (Loss) From Marketing Of Purchased Commodities And Sale Of Electricity Income (Loss) From Marketing Of Purchased Commodities And Sale Of Electricity Natural gas liquids Propane [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Schedule of Changes in Cash and Stock-Settled Performance Stock Units (PSUs) Share-Based Payment Arrangement, Performance Shares, Activity [Table Text Block] Schedule of Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Electricity generation expenses Electricity Generation Expenses [Member] Electricity Generation Expenses Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Metric tons of carbon per annum Equity Method Investment, Amount of Capacity Equity Method Investment, Amount of Capacity Asset Retirement Obligations Asset Retirement Obligation [Policy Text Block] Schedule of Other Current Assets Schedule of Other Current Assets [Table Text Block] Letters of Credit Letter of Credit [Member] Operating lease liability Operating Lease, Liability, Current Forecast period (in years) Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Forecast Period Share-Based Compensation Arrangement By Share-Based Payment Award, Fair Value Assumptions, Forecast Period Document Fiscal Period Focus Document Fiscal Period Focus Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Sold Calls - Crude Oil 2027 Sold Calls - Crude Oil 2027 [Member] Sold Calls - Crude Oil 2027 2026 Senior Notes 2026 Senior Notes [Member] 2026 Senior Notes Award Timing Method Award Timing Method [Text Block] Schedule of Financial Performance Covenants Debt Instrument, Financial Performance Covenants [Table Text Block] The tabular disclosure of debt instruments financial performance covenants. Second Amendment Second Amendment [Member] Second Amendment Award Type [Axis] Award Type [Axis] Parent Parent Company [Member] Schedule of Business Acquisition, Pro Forma Information Business Combination, Pro Forma Information [Table Text Block] Investment, Name [Domain] Investment, Name [Domain] Trading Symbol Trading Symbol 2029 Lessee, Operating Lease, Liability, to be Paid, Year Four Business Combinations Business Combination [Policy Text Block] Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Sold Calls - Crude Oil Q1 2026 Sold Calls - Crude Oil Q1 2026 [Member] Sold Calls - Crude Oil Q1 2026 Transportation costs Transportation Costs [Member] Transportation Costs Shares issued under stock-based compensation arrangements (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Business Combination, Contingent Consideration [Table] Business Combination, Contingent Consideration [Table] Entity Address, City or Town Entity Address, City or Town Weighted-average discount rate Finance Lease, Weighted Average Discount Rate, Percent Audit Information [Abstract] Audit Information [Abstract] Asset Retirement Obligations Roll forward Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Statement of Income Location, Balance [Domain] Statement of Income Location, Balance [Domain] Restricted stock units Restricted Stock Units (RSUs) [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Additions due to the Aera Merger Defined Benefit Plan, Plan Assets, Business Combination Fai value of purchase consideration Total purchase consideration Business Combination, Consideration Transferred Entity Emerging Growth Company Entity Emerging Growth Company Weighted-average remaining lease term (in years) Finance Lease, Weighted Average Remaining Lease Term Repayments of Revolving Credit Facility Repayments of Lines of Credit Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Debt issuance costs, net Debt Issuance Costs, Net Net (gain) loss from commodity derivatives Derivative, Gain (Loss) on Derivative, Net Oil and Natural Gas Oil and Gas [Member] 2026 Defined Benefit Plan, Expected Future Benefit Payment, Year One Less: Interest Finance Lease, Liability, Undiscounted Excess Amount Common stock, outstanding (in shares) Balance at the beginning of the year (in shares) Balance at the end of the year (in shares) Common Stock, Shares, Outstanding Benefit Obligation Assumptions Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Carbon Management Carbon Management Segment [Member] Carbon Management Segment Fair value of derivative contracts Business Combination, Recognized Liability Assumed, Fair Value Of Derivative Contracts Business Combination, Recognized Liability Assumed, Fair Value Of Derivative Contracts Schedule of Disaggregated Revenue Disaggregation of Revenue [Table Text Block] Schedule of Common Stock Issuances Schedule of Common Stock Outstanding Roll Forward [Table Text Block] Other assets Postretirement plan Assets for Plan Benefits, Defined Benefit Plan Current Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Proceeds from Senior Notes, net Proceeds from Issuance of Senior Long-Term Debt Defined benefit plan, age threshold for retirement benefits Defined Benefit Plan, Age Threshold For Retirement Benefits Defined Benefit Plan, Age Threshold For Retirement Benefits Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Energy operating costs Oil And Gas, Production Cost, Energy Operating Costs Oil And Gas, Production Cost, Energy Operating Costs Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Actuarial net gain due to curtailment Other Comprehensive Income (Loss), Defined Benefit Plan, Actuarial Net Gain Due To Curtailment, Before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Actuarial Net Gain Due To Curtailment, Before Tax Number of Units Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Derivative, period Derivative, Terms, Period Derivative, Terms, Period Income tax provision Income tax provision Income Tax Expense (Benefit) Interest rate added to variable rate basis Debt Instrument, Basis Spread on Variable Rate Operating Segments Excluding Intersegment Elimination Operating Segments Excluding Intersegment Elimination [Member] Operating Segments Excluding Intersegment Elimination Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Swaps - Crude Oil Q4 2026 Swaps - Crude Oil Q4 2026 [Member] Swaps - Crude Oil Q4 2026 Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] California Geologic Energy Management Division California Geologic Energy Management Division [Member] California Geologic Energy Management Division Fifth Year Debt Instrument, Redemption, Period Six [Member] Debt Instrument, Redemption, Period Six Long-term Purchase Commitment [Table] Long-Term Purchase Commitment [Table] Liabilities Assumed, Adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments, Liability [Abstract] Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments, Liability Schedule of Obligations and Assets to our Defined Benefit Pension Plans Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Table Text Block] NWPL Rockies - Natural Gas Q4 2026 NWPL Rockies - Natural Gas Q4 2026 [Member] NWPL Rockies - Natural Gas Q4 2026 Decrease in other current assets, net Increase (Decrease) in Other Current Assets Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Statement [Line Items] Equity, Class of Treasury Stock [Line Items] Accumulated depreciation, depletion and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Purchase of a business, net of cash acquired Purchase of a business, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Union employees Union Employees [Member] Union employees member Percentage of principal amount at which notes can be redeemed prior to their maturity date Debt Instrument, Redemption Price, Percentage Accrued liabilities Accrued liabilities Accrued Liabilities, Current Class of Treasury Stock [Table] Class of Treasury Stock [Table] Sold Calls - Crude Oil Q4 2026 Sold Calls - Crude Oil Q4 2026 [Member] Sold Calls - Crude Oil Q4 2026 Loss Contingencies Commitments and Contingencies, Policy [Policy Text Block] Other adjustments Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Purchased Puts - Crude Oil Q1 2026 Purchased Puts - Crude Oil Q1 2026 [Member] Purchased Puts - Crude Oil Q1 2026 Deferred Tax Liabilities Deferred Tax Liabilities, Gross [Abstract] Accumulated benefit obligation Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation Unvested, beginning of year (in shares) Unvested, end of year (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Pension and other postretirement benefits Business Combination, Recognized Asset Acquired, Pension And Other Postretirement Benefit Obligations Business Combination, Recognized Asset Acquired, Pension And Other Postretirement Benefit Obligations Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Amounts recognized on the balance sheet Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Aera Incentive Awards Aera Incentive Awards [Member] Aera Incentive Awards Expected useful lives Property, Plant and Equipment, Useful Life Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Subsequent Event Subsequent Event [Member] Schedule of Grant Date Assumptions used in the Black-Scholes Valuation for Stock Options Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Other current assets Business Combination, Recognized Asset Acquired, Other Asset, Current Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Amortization of prior service credit due to curtailment Other Comprehensive Income (Loss), Defined Benefit Plan, Settlement and Curtailment Gain (Loss), before Tax Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Swaps - Crude Oil 2027 Swaps - Crude Oil 2027 [Member] Swaps - Crude Oil 2027 Fair value of derivative contracts Business Combination, Recognized Asset Acquired, Fair Value Of Derivative Contracts Business Combination, Recognized Asset Acquired, Fair Value Of Derivative Contracts After the First Anniversary Date, Before Second Anniversary Date Debt Instrument, Redemption, Period Three [Member] Amortization of net actuarial gain Accumulated Defined Benefit Plans Adjustment, Amortization Of Net Actuarial Gain (Loss) Attributable To Parent [Member] Accumulated Defined Benefit Plans Adjustment, Amortization Of Net Actuarial Gain (Loss) Attributable To Parent 2029 Finance Lease, Liability, to be Paid, Year Four Gross Amounts at Fair Value Derivative Liability, Subject to Master Netting Arrangement, before Offset Assets Acquired Business Combination, Recognized Asset Acquired, Asset [Abstract] Denominator for Basic EPS Weighted Average Number of Shares Outstanding, Basic [Abstract] Equity Components [Axis] Equity Components [Axis] Property, Plant and Equipment Property, Plant and Equipment [Line Items] Sublease income Sublease Income NWPL Rockies - Natural Gas Q3 2026 NWPL Rockies - Natural Gas Q3 2026 [Member] NWPL Rockies - Natural Gas Q3 2026 Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Defined benefit plan, number of plans Defined Benefit Plan, Number Of Plans Defined Benefit Plan, Number Of Plans Number of reportable segments Number of Reportable Segments DIVESTITURES AND ASSET ACQUISITIONS Asset Acquisitions And Dispositions Disclosures [Text Block] The entire disclosure for acquisitions and divestitures. Schedule of Purchase Obligations on a Discounted Basis Contractual Obligation, Fiscal Year Maturity [Table Text Block] Recognition of net actuarial loss due to curtailment Other Comprehensive Income (Loss), Defined Benefit Plan, Net Actuarial Gain (Loss), Curtailment Gain (Loss), After Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Net Actuarial Gain (Loss), Curtailment Gain (Loss), After Tax Entity Address, State or Province Entity Address, State or Province Lease liabilities associated with financing activities Finance Lease, Principal Payments Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Security, Excluded EPS Calculation [Table] 2029 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Settlements and premiums due on commodity derivative contracts Settlements And Premiums Received On Derivative Contracts, Current Settlements And Premiums Received On Derivative Contracts, Current Total current liabilities Total current liabilities Liabilities, Current Swaps - Crude Oil 2028 Swaps - Crude Oil 2028 [Member] Swaps - Crude Oil 2028 Long-term Purchase Commitment, Category of Item Purchased [Domain] Long-Term Purchase Commitment, Category of Item Purchased [Domain] Individual: Individual [Axis] PROPERTY, PLANT AND EQUIPMENT Total property, plant and equipment Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Thereafter Finance Lease, Liability, to be Paid, after Year Four Finance Lease, Liability, to be Paid, after Year Four Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Capital investments Capital Investments Capital Investments Noncash finance lease assets obtained in exchange for new finance lease liabilities Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Common stock dividends Payments of Ordinary Dividends, Common Stock Document Annual Report Document Annual Report Property, plant and equipment Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment Three Customers Three Customers [Member] Three Customers Recognition of net actuarial gain due to special termination benefits Accumulated Defined Benefit Plans Adjustment, Recognition Of Net Actuarial Gain (Loss) Attributable To Parent, Due To Special Termination Benefits [Member] Accumulated Defined Benefit Plans Adjustment, Recognition Of Net Actuarial Gain (Loss) Attributable To Parent, Due To Special Termination Benefits Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Repayments of long-term debt Repayments of Long-Term Debt Entity Interactive Data Current Entity Interactive Data Current Interest crediting rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate Net benefit asset Defined Benefit Plan, Funded (Unfunded) Status of Plan Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Combined Unrestricted Subsidiaries Combined Unrestricted Subsidiaries, Consolidating [Member] Combined Unrestricted Subsidiaries, Consolidating Less: Segment Reconciliation [Abstract] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Settlements Gain (Loss) on Sale of Derivatives Operating loss and tax credit carryforwards Deferred Tax Assets, Operating Loss Carryforwards Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Ownership [Domain] Ownership [Domain] Derivative Instrument, Period [Axis] Derivative Instrument, Period [Axis] Derivative Instrument, Period 2027 Finance Lease, Liability, to be Paid, Year Two Aera Merger Aera Merger [Member] Aera Merger 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year Two ScheduleOfCondensedFinancialStatements [Table] Condensed Financial Statements [Table] OTHER NONCURRENT ASSETS Other noncurrent assets Other assets Other Assets, Noncurrent Interest Interest Payable, Current Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key PEO Name PEO Name Beginning balance Ending balance Asset Retirement Obligation Total operating revenues Segment operating revenues Total operating revenues Revenues Margin increase, additional increase each subsequent fiscal quarter Debt Instrument, Margin Increase, Additional Increase Each Subsequent Fiscal Quarter Debt Instrument, Margin Increase, Additional Increase Each Subsequent Fiscal Quarter Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Curtailment loss Curtailment gain Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount NWPL Rockies - Natural Gas 2027 NWPL Rockies - Natural Gas 2027 [Member] NWPL Rockies - Natural Gas 2027 Defined Benefit Plan [Table] Defined Benefit Plan [Table] Excise tax on share repurchases Noncash Financing Activities, Excise Tax on Share Repurchases To Be Paid Noncash Financing Activities, Excise Tax on Share Repurchases To Be Paid Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Tranche One Share-Based Payment Arrangement, Tranche One [Member] Advanced payments Contract with Customer, Liability, Current Warrant exercise price (in dollars per share) Class of Warrant or Right, Exercise Price of Warrants or Rights Schedule of Fair Values (at Gross and Net) of Outstanding Derivatives Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] MMBtu per day (in millions of BTU) Derivative, Nonmonetary Notional Amount, Energy Measure Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid U.S. federal statutory tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Purchase price adjustment (Aera Merger) Equity Method Investment, Preliminary Purchase Price Allocation, Measurement Period Adjustment Equity Method Investment, Preliminary Purchase Price Allocation, Measurement Period Adjustment Subsequent Event Type [Axis] Subsequent Event Type [Axis] Long-term debt, net Long-term debt, net Long-term debt Long-Term Debt, Excluding Current Maturities Statement of Financial Position Location, Balance [Axis] Statement of Financial Position Location, Balance [Axis] Vesting [Domain] Vesting [Domain] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Number of offshore platforms with decommissioning obligations defaulted Number Of Offshore Platforms With Decommissioning Obligations Defaulted Number Of Offshore Platforms With Decommissioning Obligations Defaulted Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] Shares cancelled for taxes (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Emission reduction credits Emission Reduction Credits, Noncurrent Emission Reduction Credits, Noncurrent Existing CRC Stockholders Existing CRC Stockholders [Member] Existing CRC Stockholders Liability recorded for unrecognized tax benefits Unrecognized Tax Benefits, Period Increase (Decrease) Issuance of shares for stock-based compensation awards Stock Issued Cost of special termination benefits Defined Benefit Plan, Benefit Obligation, Special and Contractual Termination Benefits Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Ownership [Axis] Ownership [Axis] U.S. equity Private Equity Funds, US [Member] DERIVATIVES Derivative Instruments and Hedging Activities Disclosure [Text Block] Amortization of prior service cost credit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Deferred Consideration Obligation (related to the Aera Merger) Deferred Consideration Obligation [Member] Deferred Consideration Obligation Fair Value as of Grant Date Award Grant Date Fair Value Stock warrants exercised Proceeds from Warrant Exercises Other long-term liabilities for the supplemental retirement plan Supplemental Retirement Plan, Supplemental Retirement Plan Accrued Liabilities This element represents the accrued liabilities for supplemental retirement benefit plan which provides restoration of benefit lost due to government limitations on qualified retirement benefits. Net operating loss carryforwards Operating Loss Carryforwards Recognition of prior service credit due to curtailment Other Comprehensive Income (Loss), Defined Benefit Plan, Prior Service Cost (Credit), Curtailment, Gain (Loss), After Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Prior Service Cost (Credit), Curtailment, Gain (Loss), After Tax Schedule of Debt Schedule of Long-Term Debt Instruments [Table Text Block] Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Incremental common shares attributable to dilutive effect of share-based payment arrangements (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Total costs and other Costs and Expenses Title and Position [Domain] Title and Position [Domain] Forfeited or Cancelled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Unrecognized compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Fair Value of Long-Term Debt Long-Term Debt, Fair Value Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2027 Lessee, Operating Lease, Liability, to be Paid, Year Two Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount 2028 Defined Benefit Plan, Expected Future Benefit Payment, Year Three Drilling Commitment Drilling Commitments [Member] Drilling Commitments Number of non-executive employees Share-Based Payment Arrangement, Number Of Grantees Affected Share-Based Payment Arrangement, Number Of Grantees Affected Interest and debt expense, net Interest and Debt Expense Schedule of Funding Status of our Pension and Post-Retirement Benefit Plans Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Four Lessee, Operating Lease, Liability, to be Paid, after Year Four Impairment of long-lived assets held for sale Impairment of Long-Lived Assets to be Disposed of Secured Overnight Financing Rate Secured Overnight Financing Rate [Member] Secured Overnight Financing Rate Member Settlement of Aera debt Payments to Acquire Businesses, Gross Non-PEO NEO Non-PEO NEO [Member] Letters of credit outstanding, amount Letters of Credit Outstanding, Amount Current liability (included in accrued liabilities) Asset retirement obligations - current portion Asset Retirement Obligation, Current Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] SoCal Border - Natural Gas Q3 2026 SoCal Border - Natural Gas Q3 2026 [Member] SoCal Border - Natural Gas Q3 2026 Prior service credit Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] Award Type [Domain] Award Type [Domain] Debt redemption Payment for Debt Extinguishment or Debt Prepayment Cost 2026 Lessee, Operating Lease, Liability, to be Paid, Year One Accrued liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accrued Liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Accrued Liabilities Two Customer Two Customers [Member] Two Customers Equity Awards Adjustments Equity Awards Adjustments [Member] Leasehold Improvements Leasehold Improvements [Member] Other non-cash charges to income, net Other Noncash Income (Expense) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Disaggregation of revenue Disaggregation of Revenue [Line Items] Defined Benefit Plan Disclosure Postretirement and Other Benefit Plans Disclosure Defined Benefit Plan Disclosure [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Commodities Us Equity [Member] Represents U.S. equity information. Settlement costs Other Comprehensive Income Defined Benefit Plan Recognized Net Gain (Loss) Due to Settlements Before Tax Amount after tax of net gain (loss) due to settlements changes attributable to plan participants' prior service resulting from a plan amendment or plan initiation that has not been recognized in net periodic benefit cost (credit) before tax. Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] EPS Business Acquisition, Pro Forma Earnings Per Share [Abstract] Business Acquisition, Pro Forma Earnings Per Share Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Projected healthcare cost rate in ninth year after current fiscal year Defined Benefit Plan, Health Care Cost Trend Rate On The Ninth Year Defined Benefit Plan, Health Care Cost Trend Rate On The Ninth Year Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Gross Amounts at Fair Value Estimate of Fair Value Measurement [Member] Offsetting Assets [Table] Offsetting Assets [Table] Retirement Plan Type [Domain] Retirement Plan Type [Domain] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Net Fair Value Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral Non-energy operating costs Oil and Gas, Production Cost, Non-Energy Operating Costs Oil and Gas, Production Cost, Non-Energy Operating Costs Deferred tax asset Business Combination, Recognized Asset Acquired, Deferred Tax Asset Employee Stock Employee Stock [Member] Schedule of Changes in Plan Assets and Benefit Obligations Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] REVENUES Revenues [Abstract] Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Finance Lease, Right-of-Use Asset, Statement of Financial Position Flag Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount [Abstract] Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax ScheduleOfCondensedFinancialStatements [Line Items] Condensed Financial Statements, Captions [Line Items] Long-term Purchase Commitment [Line Items] Long-Term Purchase Commitment [Line Items] Total Liabilities Assumed Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Liability Total deferred taxes Deferred Tax Liabilities, Gross Award Date [Domain] Award Date [Domain] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Before Transaction Expense Before Transaction [Member] Expense Before Transaction Inventory Total Inventory, Net Minimum Minimum [Member] Company Selected Measure Name Company Selected Measure Name Greenhouse gas liability Accrual for Environmental Loss Contingencies Fair Value Measurement [Domain] Fair Value Measurement [Domain] Net income Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Derivative Instrument, Period [Domain] Derivative Instrument, Period [Domain] Derivative Instrument, Period Domain Lease liabilities associated with operating activities Operating Lease, Payments Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Amortization of prior service credit Accumulated Defined Benefit Plans Adjustment, Amortization Of Prior Service Attributable To Parent [Member] Accumulated Defined Benefit Plans Adjustment, Amortization Of Prior Service Attributable To Parent Combined Restricted Subsidiaries Combined Restricted Subsidiaries, Consolidating [Member] Combined Restricted Subsidiaries, Consolidating LAWSUITS, CLAIMS, COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Tranche Two Share-Based Payment Arrangement, Tranche Two [Member] Total derivatives Derivative Assets (Liabilities), at Fair Value, Net Fourth Amendment Fourth Amendment [Member] Fourth Amendment Diluted (in shares) Weighted-average shares — diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Asset retirement obligations Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Asset Retirement Obligations Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Asset Retirement Obligations SUPPLEMENTAL ACCOUNT BALANCES Supplemental Information [Text Block] Supplemental Information Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Number of trading days Share-Based Compensation Arrangement By Share-Based Payment Award, Weighted Average Price, Number Of Trading Days Share-Based Compensation Arrangement By Share-Based Payment Award, Weighted Average Price, Number Of Trading Days Entity Small Business Entity Small Business Income Taxes Income Tax Disclosure [Abstract] Interest and penalties related to uncertain tax positions Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense SUPPLEMENTAL INFORMATION [Abstract] Supplemental Information Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding State and local Current State and Local Tax Expense (Benefit) DEBT Long-Term Debt [Text Block] Document Transition Report Document Transition Report Operating Lease, Right-of-Use Asset, Statement of Financial Position Flag Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other noncurrent assets Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent Divestitures of asset retirement obligations Asset Retirement Obligation, Liabilities Divested Asset Retirement Obligation, Liabilities Divested Reportable Legal Entities Reportable Legal Entities [Member] Underlying Securities Award Underlying Securities Amount Repayments of assumed debt Repayments of Assumed Debt Equity Component [Domain] Equity Component [Domain] Special termination benefits Other Comprehensive Income (Loss), Defined Benefit Plan, Special And Contractual Termination Benefits, Before Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Special And Contractual Termination Benefits, Before Tax Document Period End Date Document Period End Date Additional vested (in shares) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Additional Vested In Period Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Additional Vested In Period INCOME TAXES Income Tax Disclosure [Text Block] Unamortized premium Debt Instrument, Unamortized Premium Proceeds from Revolving Credit Facility Proceeds from Lines of Credit Present value of purchase obligations Contractual Obligation Contribution from noncontrolling interest Equity Method Investment, Initial Investment Contribution, Amount Equity Method Investment, Initial Investment Contribution, Amount Asset retirement obligations Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] International equity International Equity [Member] Represents information of information equity. Liabilities: Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract] Debt Securities Defined Benefit Plan, Debt Security [Member] Short-term lease costs Short-Term Lease, Cost Operating Lease, Liability, Noncurrent, Statement of Financial Position Flag Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Schedule of Capitalized Exploratory Well Cost Oil and Gas, Capitalized Exploratory Well Cost, Roll Forward [Table Text Block] Average Price Paid per Share (in dollars per share) Shares Acquired, Average Cost Per Share Number of plants acquired Number Of Plants Acquired Number Of Plants Acquired Percentage of operating costs reported under PSC-type contracts Percentage of Operating Costs Reported Under Production Sharing Type Contracts The percentage of operating costs reported under PSCs. Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] Equity method investments, fair value disclosure Equity Method Investments, Fair Value Disclosure EARNINGS PER SHARE Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Elk Hills Elk Hills [Member] Elk Hills Product and Service [Axis] Product and Service [Axis] 2029 Senior Notes 2029 Senior Notes [Member] 2029 Senior Notes Variable lease costs Variable Lease, Cost Oil, natural gas and natural gas liquids sales Revenue Segment operating revenues Revenue from Contract with Customer, Excluding Assessed Tax Sold Calls - Crude Oil 2028 Sold Calls - Crude Oil 2028 [Member] Sold Calls - Crude Oil 2028 Total current assets Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Nontaxable or nondeductible items Effective Income Tax Rate Reconciliation, Nontaxable And Nondeductible Expense, Amount Effective Income Tax Rate Reconciliation, Nontaxable And Nondeductible Expense, Amount Other long-term liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liability, Noncurrent Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Liability, Noncurrent Stock repurchase program authorized amount Share Repurchase Program, Authorized, Amount Receivables from affiliate Other Receivables, Net, Current Current liabilities Accrued Liabilities [Member] Pension and other postretirement benefits Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets, Pension And Other Postretirement Benefit Obligations Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Assets, Pension And Other Postretirement Benefit Obligations Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Disposal Group Name [Axis] Disposal Group Name [Axis] Total Assets Acquired Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Asset Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Asset Recognition of net actuarial loss due to curtailment Accumulated Defined Benefit Plans Adjustment, Recognition Of Net Actuarial Gain (Loss) Attributable To Parent, Due To Curtailment [Member] Accumulated Defined Benefit Plans Adjustment, Recognition Of Net Actuarial Gain (Loss) Attributable To Parent, Due To Curtailment Shares cancelled for taxes Payment, Tax Withholding, Share-Based Payment Arrangement Share-based payment arrangement, accelerated cost Share-Based Payment Arrangement, Accelerated Cost Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] SoCal Border - Natural Gas 2028 SoCal Border - Natural Gas 2028 [Member] SoCal Border - Natural Gas 2028 SoCal Border - Natural Gas Q1 2026 SoCal Border - Natural Gas Q1 2026 [Member] SoCal Border - Natural Gas Q1 2026 Aera Aera Energy, LLC [Member] Aera Energy, LLC Schedule of Reconciliation of Operating Profit (Loss) from Segments to Consolidated Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Total other comprehensive income (loss) Other comprehensive income, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent CURRENT LIABILITIES Liabilities, Current [Abstract] Performance stock units Performance Stock Units [Member] Performance Stock Units Total operating expenses Operating Expenses Common stock per share fair value (in dollars per share) Business Combination, Price Per Share Level 1 Fair Value, Inputs, Level 1 [Member] (Loss) gain on asset divestitures Loss (gain) on asset divestitures Gain on asset divestitures Gain (Loss) on Disposition of Assets Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Accounts payable Business Combination, Recognized Liability Assumed, Accounts Payable, Current Diluted (in dollars per share) Earnings Per Share, Diluted Cash-settled Awards Cash Settled Employee Stock Option And Stock Appreciation Right [Member] An arrangement whereby an employee is entitled to receive in the future, subject to vesting and other restrictions, a number of shares and share appreciation rights in the entity at a specified price, which is settled in cash as defined in the agreement. Other tax credit Effective Income Tax Rate Reconciliation, Tax Credit, Other, Amount Trade receivables Accounts Receivable, after Allowance for Credit Loss, Current Supplemental disclosure of non-cash investing and financing activities Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Schedule of Weighted-Average Basis used to our Determine Benefit Obligations Defined Benefit Plan, Assumptions [Table Text Block] Debt amendment costs Payments of Debt Restructuring Costs Treasury stock (in shares) Treasury Stock, Common, Shares Consolidation Items [Domain] Consolidation Items [Domain] Derivative Liability, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Statement of Financial Position [Extensible Enumeration] Purchased Puts - Crude Oil 2028 Purchased Puts - Crude Oil 2028 [Member] Purchased Puts - Crude Oil 2028 Auditor Location Auditor Location INVESTMENTS AND RELATED PARTY TRANSACTIONS Equity Method Investments and Joint Ventures Disclosure [Text Block] Dollar Value of Shares Purchased Stock Repurchased and Retired During Period, Value Actuarial loss (gain) Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Oil Oil and Condensate [Member] Federal Domestic Tax Jurisdiction [Member] Plan amendment Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment Other Stockholders' Equity, Other Business Combination, Contingent Consideration [Line Items] Business Combination, Contingent Consideration [Line Items] Less: Interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Decommissioning liability, current Decommissioning Liability, Current Decommissioning Liability, Current Defined benefit plans, postretirement benefits, number of plans acquired Defined Benefit Plans, Postretirement Benefits, Number Of Plans Acquired Defined Benefit Plans, Postretirement Benefits, Number Of Plans Acquired Swaps - Crude Oil Q3 2026 Swaps - Crude Oil Q3 2026 [Member] Swaps - Crude Oil Q3 2026 Assets held for sale Disposal Group, Including Discontinued Operation, Assets, Current Principal amount Long-Term Debt, Gross Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Compensation-related liabilities Employee-related Liabilities, Current PROPERTY, PLANT AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Total property, plant and equipment, net Total property, plant and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Net gain (loss) from commodity derivatives Gain (Loss) on Derivative Instruments, Net, Pretax Impairment charges natural gas properties Impairment, Oil and Gas, Property with Unproved and Proved Reserves Intersegment revenue Intersegment Eliminations [Member] Expiration Date Trading Arrangement Expiration Date Payments to acquire land Payments to Acquire Land Swaps - Crude Oil Q2 2026 Swaps - Crude Oil Q2 2026 [Member] Swaps - Crude Oil Q2 2026 Offshore platforms with decommissioning obligations defaulted percentage Offshore Platforms With Decommissioning Obligations Defaulted, Ownership Percent Offshore Platforms With Decommissioning Obligations Defaulted, Ownership Percent STOCKHOLDERS' EQUITY Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Long Term Purchase and Contractual Obligation Long Term Purchase And Contractual Obligation [Member] Represents the information pertains to long term purchase and contractual obligations. Schedule of Equity Method Investments Equity Method Investments [Table Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Inventory Inventory, Policy [Policy Text Block] Entity Current Reporting Status Entity Current Reporting Status Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Consolidated Entities [Domain] Consolidated Entities [Domain] Purchased Puts - Crude Oil 2027 Purchased Puts - Crude Oil 2027 [Member] Purchased Puts - Crude Oil 2027 U.S. federal statutory tax rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Equity method investments, distributed to satisfy future capital calls Equity Method Investments, Amounts That May Be Distributed To Satisfy Future Capital Calls Equity Method Investments, Amounts That May Be Distributed To Satisfy Future Capital Calls Deferred Tax Assets Deferred Tax Assets, Gross [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] Stock repurchase, excise tax Treasury Stock, Value, Acquired, Cost Method, Excise Tax Treasury Stock, Value, Acquired, Cost Method, Excise Tax Asset retirement obligations Non-current liability Asset Retirement Obligations, Noncurrent State and local income taxes, net of federal income tax effect Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Other operating expenses, net Other Operating Income (Expense), Net Marginal well credit Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Amount Finance lease Finance Lease, Liability, Current Current Fiscal Year End Date Current Fiscal Year End Date Projected healthcare cost rate in next fiscal year Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year Pension and other postretirement benefits Business Combination, Recognized Liability Assumed, Pension And Other Postretirement Benefits Business Combination, Recognized Liability Assumed, Pension And Other Postretirement Benefits Expected term Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Total Contractual Obligation, Including Undiscounted Excess Amount Contractual Obligation, Including Undiscounted Excess Amount Weighted-Average Grant-Date Fair Value Weighted-Average Grant-Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Natural gas Natural Gas, Production [Member] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Prior service credit Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax Dividend equivalents for stock-based compensation awards Dividends Accrued For Stock-based Compensation Awards Dividends Accrued For Stock-based Compensation Awards Shares issued for Merger Stock Issued During Period, Value, Acquisitions Net Assets Acquired Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less) Weighted-average common shares outstanding Denominator for Diluted EPS Weighted Average Number of Shares Outstanding, Diluted [Abstract] Number of employees accruing benefits under defined benefit plans Defined Benefit Plan, Number Of Participating Employees This element represents the number of employees currently accruing benefits under defined benefit plans. Oil and Natural Gas Oil And Natural Gas Segment [Member] Oil And Natural Gas Segment Other Commitments [Table] Other Commitments [Table] LEASES Lessee, Operating Leases [Text Block] Net cash (used in) provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Deferred financing costs - Revolving Credit Facility Debt Issuance Costs, Noncurrent, Net Amortization net actuarial gain (loss) Other Comprehensive Income Defined Benefit Plan Reversal of Amortization of Net Actuarial Gain (Loss) Before Tax Amount of reversal of amortization of net actuarial gain (loss) after tax of (increase) decrease in the value of the projected benefit obligation related to a change in an actuarial assumption and increase (decrease) in the value of the plan assets resulting from experience different from that assumed, that has not been recognized in net periodic benefit (cost) credit before tax. Measure: Measure [Axis] Projected healthcare cost rate in tenth year after current fiscal year Defined Benefit Plan, Health Care Cost Trend Rate On The Tenth Year The assumed health care cost trend rate for on the eighth year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status. Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Swaps - Crude Oil Q1 2026 Swaps - Crude Oil Q1 2026 [Member] Swaps - Crude Oil Q1 2026 Cost of sales Cost of Product and Service Sold Actuarial gain (loss) associated with pension and postretirement Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Asset Retirement Obligation [Abstract] Asset Retirement Obligation [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Entity Tax Identification Number Entity Tax Identification Number Production-Sharing Type Contracts Production Sharing Type Contracts [Policy Text Block] Disclosure of accounting policy for production sharing type contracts. Derivative, hedging percent Derivative, Terms, Hedging Percent Derivative, Terms, Hedging Percent 2028 Contractual Obligation, to be Paid, Year Three Number of oil and gas wells abandoned Number Of Oil And Gas Wells Abandoned Number Of Oil And Gas Wells Abandoned Common stock, issued (in shares) Common Stock, Shares, Issued Weighted-average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Potential common shares, if dilutive: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Entity Public Float Entity Public Float Trading Arrangement: Trading Arrangement [Axis] Fair value of commodity derivative contracts Derivative Asset, Current Total Shareholder Return Amount Total Shareholder Return Amount Basic (in dollars per share) Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Basic Security Exchange Name Security Exchange Name Schedule of Reconciliation of Revenue from Segments to Consolidated Reconciliation of Revenue from Segments to Consolidated [Table Text Block] SoCal Border - Natural Gas Q4 2026 SoCal Border - Natural Gas Q4 2026 [Member] SoCal Border - Natural Gas Q4 2026 Commitments under contracts for the second year 2027 Contractual Obligation, to be Paid, Year Two Deferred tax liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Liability Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Deferred Tax Liability Assets: Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral [Abstract] Crude Oil Hedge Positions Energy Related Derivative [Member] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Business Combination, Consideration Transferred, Equity Interest, Type [Domain] Business Combination, Consideration Transferred, Equity Interest, Type [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Berry Merger Berry Merger [Member] Berry Merger Prepaid expenses Prepaid Expense, Current OPERATING EXPENSES Operating Expenses [Abstract] Discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Other long-term liabilities Liability, Defined Benefit Plan, Noncurrent Defined benefit plan, health care cost trend rate consumer price index Defined Benefit Plan, Health Care Cost Trend Rate Consumer Price Index Increase This element represents the assumed Consumer Price Index (CPI) increase used for projecting health care cost trend rates. Statement [Line Items] Statement [Line Items] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Cost incurred, abandonment cost Oil and Gas, Cost Incurred, Asset Retirement Obligation Variable rate debt Long-Term Debt, Percentage Bearing Variable Interest, Amount Subsequent Event [Line Items] Subsequent Event [Line Items] Common Stock Common Stock [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Finance Leases Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] (Decrease) increase in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Total Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent Dividends declared, common stock (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Other revenues and income Other Revenue And Income Other Revenue And Income Statistical Measurement [Domain] Statistical Measurement [Domain] Other current assets, net Other Current Assets [Member] Property, plant and equipment Business combination, asset acquired property Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment Amortization of prior service cost credit included in net periodic benefit cost Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, after Tax Operating Lease, Liability, Current, Statement of Financial Position Flag Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Less: Interest Contractual Obligation, Undiscounted Excess Amount Contractual Obligation, Undiscounted Excess Amount Debt instrument, covenant, revolving commitments, minimum Debt Instrument, Covenant, Revolving Commitments, Minimum Debt Instrument, Covenant, Revolving Commitments, Minimum Restricted cash Restricted Cash, Current Contributions to the Carbon TerraVault JV Noncash Investing Activities, Capital Call Related To Equity Method Investment Noncash Investing Activities, Capital Call Related To Equity Method Investment Ventura Basin Ventura Basin [Member] Ventura Basin Offshore platforms with decommissioning obligations defaulted period since interest sold Off shore Platforms With Decommissioning Obligations Defaulted Period Since Interest Sold Off shore Platforms With Decommissioning Obligations Defaulted Period Since Interest Sold Stock-based compensation Business Combination, Consideration Transferred, Share-Based Payment Arrangement Business Combination, Consideration Transferred, Share-Based Payment Arrangement Computer Hardware Computer Hardware [Member] Hardware Member Equity loss from unconsolidated subsidiaries Share of net income (loss) Equity loss (income) from unconsolidated subsidiaries Income (Loss) from Equity Method Investments Expenses under provisions of defined contribution and supplemental plans Defined Contribution Plan And Supplemental Plan, Cost Defined Contribution Plan And Supplemental Plan, Cost Leases [Abstract] Leases [Abstract] EPS Earnings Per Share, Basic [Abstract] Schedule of Other Long-Term Liabilities Other Noncurrent Liabilities [Table Text Block] Schedule of Dividends Declared Dividends Declared [Table Text Block] Type of Restructuring [Domain] Type of Restructuring [Domain] Shares cancelled for taxes Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Warrant outstanding (in shares) Class of Warrant or Right, Outstanding Federal Funds Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Basic (in dollars per share) Basic (in dollars per share) Earnings Per Share, Basic Decrease in accounts payable and accrued liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Accrued liabilities Business Combination, Recognized Liability Assumed, Accrued Liabilities Business Combination, Recognized Liability Assumed, Accrued Liabilities Settlement payments of asset retirement obligations Asset Retirement Obligation, Liabilities Settled Shares reserved for future issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance Fair value of plan assets Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets Award Date [Axis] Award Date [Axis] Total deferred taxes Deferred Tax Assets, Gross Discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Materials and supplies Other Inventory, Supplies, Gross Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Decrease from revisions of estimated cash flows Revisions of estimated cash flows Asset Retirement Obligation, Revision of Estimate 2028 Finance Lease, Liability, to be Paid, Year Three Executive Compensation, After Transaction Executive Compensation Expense After Transaction [Member] Executive Compensation Expense After Transaction Deferred compensation and benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Period before costs expensed for no proved reserves Property, Plant and Equipment, Period Before Costs Expensed For No Proved Reserves Property, Plant and Equipment, Period Before Costs Expensed For No Proved Reserves Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Proceeds from asset divestitures Proceeds from Sale of Productive Assets Category of Item Purchased [Axis] Category of Item Purchased [Axis] Liabilities assumed Asset Retirement Obligation, Liabilities Assumed Asset Retirement Obligation, Liabilities Assumed Contributions Payments to Acquire Equity Method Investments Total stock-based compensation expense Share-Based Payment Arrangement, Expense Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Finance Lease, Liability, Current, Statement of Financial Position Flag Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Hedging Designation [Domain] Hedging Designation [Domain] NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER No definition available. Business Combination, Goodwill, Reportable Segment Assignment [Line Items] Business Combination, Goodwill, Reportable Segment Assignment [Line Items] CURRENT ASSETS Assets, Current [Abstract] TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Other comprehensive income (loss) Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Common stock issued in connection with acquisition (in shares) Shares of common stock (in shares) Issued as part of the merger (in shares) Stock Issued During Period, Shares, Acquisitions Increase (decrease) in debt issuance costs, net Increase (Decrease) In Debt Issuance Costs, Net Increase (Decrease) In Debt Issuance Costs, Net Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Software and Telecommunications Equipment Software And Telecommunications Equipment [Member] Software and Telecommunications Equipment Member ACQUISITIONS AND DIVESTITURES Asset Acquisitions And Dispositions [Abstract] Asset Acquisitions And Dispositions All other Deferred Tax Assets, Other General and administrative expenses General and Administrative Expense [Member] Equity Method Investment [Table] Equity Method Investment [Table] Schedule of Maturities of our Operating Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Management Services Agreement Management Services Agreement [Member] Management Services Agreement Treasury Stock Treasury Stock, Common [Member] Pay vs Performance Disclosure [Line Items] Present value of lease liabilities Operating Lease, Liability Investments in consolidated subsidiaries Investments In Consolidated Affiliates Subsidiaries Associates And Joint Ventures Investments In Consolidated Affiliates Subsidiaries Associates And Joint Ventures Operating costs: Oil And Gas, Production Cost, Operating Costs [Abstract] Oil And Gas, Production Cost, Operating Costs BUSINESS COMBINATIONS Business Combination [Text Block] Other noncurrent assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Asset, Noncurrent Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Other Asset, Noncurrent Dividend equivalents on equity-settled awards Payments on Share-Based Payment Arrangement, Cash Used to Settle Award Payments on Share-Based Payment Arrangement, Cash Used to Settle Award Debt instrument, redemption price, percentage of principal amount redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Other long-term liabilities Other long-term liabilities Other long-term liabilities Other long-term liabilities Other Liabilities, Noncurrent Taxes other than on income Accrual for Taxes Other than Income Taxes, Current Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Investment in unconsolidated subsidiaries Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer 2028 Lessee, Operating Lease, Liability, to be Paid, Year Three Debt Instrument, Redemption, Period Seven Debt Instrument, Redemption, Period Seven [Member] Debt Instrument, Redemption, Period Seven Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Finance Leases Finance Lease, Weighted Average Remaining Lease Term And Discount Rate [Abstract] Finance Lease, Weighted Average Remaining Lease Term And Discount Rate Disposal Group Name [Domain] Disposal Group Name [Domain] 2030 Contractual Obligation, to be Paid, Year Five Name Measure Name Total recorded in accumulated other comprehensive income, before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Deferred tax liabilities Deferred tax liability Deferred Income Tax Liabilities, Net Expected return on assets Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets Assets Acquired, Adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments, Asset [Abstract] Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustments, Asset Purchase price adjustment Gain (Loss) On Disposition Of Assets, Purchase Price Adjustment Gain (Loss) On Disposition Of Assets, Purchase Price Adjustment Legal Entity [Axis] Legal Entity [Axis] TOTAL ASSETS Assets Signal Hill offshore platform expense accrual Accrual For Platform Expense Accrual For Platform Expense Number of gas processing facilities Number Of Gas Processing Facilities Number Of Gas Processing Facilities Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Accumulated other comprehensive income, net of tax Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Geographical [Domain] Geographical [Domain] Income Taxes Income Tax, Policy [Policy Text Block] Deferred Tax Assets and Liabilities Components of Deferred Tax Assets and Liabilities [Abstract] CASH FLOW FROM OPERATING ACTIVITIES Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Other segment expenses Segment Reporting, Other Segment Item, Amount Line of credit facility, accordion feature, higher borrowing capacity option Line 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[Table Text Block] Reconciliation (Income)/Expense Reconciliation of Profit orLoss [Member] Reconciliation of Profit orLoss Round Mountain Unit Round Mountain Unit [Member] Round Mountain Unit Plan Name [Axis] Plan Name [Axis] Property, Plant and Equipment (PP&E) Property, Plant and Equipment, Policy [Policy Text Block] PEO PEO [Member] Employee Severance Employee Severance [Member] Schedule of Income Taxes Paid Schedule Of Income Taxes Paid [Table Text Block] Schedule Of Income Taxes Paid Changes in operating assets and liabilities, net: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Property, plant and equipment Deferred Tax Liabilities, Property, Plant and Equipment Prior service credit Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), after Tax Retained Earnings Retained Earnings [Member] Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Schedule of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Cash and cash equivalents—beginning of period Cash and cash equivalents—end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Funded pension Defined Benefit Plan, Funded Pension, Noncurrent Defined Benefit Plan, Funded Pension, Noncurrent Sold Calls - Crude Oil Q3 2026 Sold Calls - Crude Oil Q3 2026 [Member] Sold Calls - Crude Oil Q3 2026 Fair value of commodity derivative contracts Derivative Liability, Noncurrent Product and Service [Domain] Product and Service [Domain] Major Customers Customer Concentration Risk [Member] Changes in accrued capital investments Increase Decrease In Capital Investment Accrual Represents the information pertaining to changes in capital investment accruals Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Business Combination [Table] Business Combination [Table] Month 25 Through Month 36 Derivative Instrument, Period Two [Member] Derivative Instrument, Period Two Business Combination, Consideration Transferred, Equity Interest, Type [Axis] Business Combination, Consideration Transferred, Equity Interest, Type [Axis] Additions Asset Retirement Obligation, Liabilities Incurred Organization, Consolidation and Presentation of Financial Statements [Abstract] Asset acquisitions Payments to Acquire Other Productive Assets Actuarial gain (loss) associated with pension and postretirement plans Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Business Combination, Recognized 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Recognition of net actuarial gain due to special termination benefits Other Comprehensive Income (Loss), Defined Benefit Plan, Net Actuarial Gain (Loss), Special Termination Benefits, After Tax Other Comprehensive Income (Loss), Defined Benefit Plan, Net Actuarial Gain (Loss), Special Termination Benefits, After Tax Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] First 24 Months Derivative Instrument, Period One [Member] Derivative Instrument, Period One Amortization of net actuarial gain Defined Benefit Plan, Amortization of Gain (Loss) Total lease costs Lease, Cost Interest crediting rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted-Average Interest Crediting Rate RSU Grants November, 4 2025 RSU Grants November, 4 2025 [Member] RSU Grants November, 4 2025 Schedule of Operating Lease Costs Lease, Cost [Table Text Block] Non-cash commodity derivative gain Unrealized Gain (Loss) on Derivatives and Commodity Contracts, Portion Attributable To Parent Unrealized Gain (Loss) on Derivatives and Commodity Contracts, Portion Attributable To Parent Materials and supplies impairment Tangible Asset Impairment Charges Purchased Puts - Crude Oil Q2 2026 Purchased Puts - Crude Oil Q2 2026 [Member] Purchased Puts - Crude Oil Q2 2026 Business interest carryforward Deferred Tax Asset, Interest Carryforward U.S. federal Deferred Federal Income Tax Expense (Benefit) Postretirement and pension benefit plans Liability, Defined Benefit Pension Plan, Noncurrent Auditor Name Auditor Name Concentration Risk [Table] Concentration Risk [Table] Accretion expense Accretion Expense Well Servicing Equipment Equipment [Member] Inventory Inventories Business Combination, Recognized Asset Acquired, Inventory, Current Estimated future undiscounted benefit payments Defined Benefit Plan, Expected Future Benefit Payment [Abstract] NATURE OF BUSINESS, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND OTHER Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Amortization of net actuarial gain Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Accounts receivable Business Combination, Recognized Asset Acquired, Receivable, Current Other Performance Measure, Amount Other Performance Measure, Amount NWPL Rockies - Natural Gas 2028 NWPL Rockies - Natural Gas 2028 [Member] NWPL Rockies - Natural Gas 2028 Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Pension and Postretirement Benefit Plans Pension and Other Postretirement Plans, Policy [Policy Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Unproved oil and natural gas properties Unproved Oil And Gas Properties [Member] Represents the unproved oil and gas properties. Amount Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Vesting [Axis] Vesting [Axis] Numerator for Basic and Diluted EPS Earnings Per Share Reconciliation [Abstract] Cash Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Cash And Equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Measurement Period Adjustments, Cash Other current assets, net Other current assets, net Other Assets, Current Additional paid-in capital Additional Paid in Capital, Common Stock Entity [Domain] Entity [Domain] Operating costs Production Costs [Member] Primary financial statement caption encompassing expenses associated with production costs. Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Current Ratio Debt Instrument Covenant Current Ratio Debt Instrument Covenant Current Ratio Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Fair value of commodity derivative contracts Derivative Asset, Noncurrent Gain (loss) on disposition of business Gain (Loss) on Disposition of Business Interest paid, net of amount capitalized Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating lease Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Effective tax rate Effective Income Tax Rate Reconciliation, Percent Operating lease costs Operating Lease, Cost Beginning balance Ending balance Oil and Gas, Capitalized Exploratory Well Cost Total annual dividend anticipated, common stock (in dollars per share) Common Stock, Dividends, Per Share, Expected Annual Dividend Common Stock, Dividends, Per Share, Expected Annual Dividend Net Fair Value Reported Value Measurement [Member] Plan Name [Domain] Plan Name [Domain] NWPL Rockies - Natural Gas Q1 2026 NWPL Rockies - Natural Gas Q1 2026 [Member] NWPL Rockies - Natural Gas Q1 2026 Business combination, acquisition related costs Business Combination, Acquisition-Related Cost, Expense Weighted-average period over which unrecognized compensation expense is expected to be recognized Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Taxes other than on income Taxes other than on income Taxes, Miscellaneous Equity [Abstract] Derivative Instruments Derivatives, Policy [Policy Text Block] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] San Joaquin Energy Company San Joaquin Energy Company [Member] San Joaquin Energy Company Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Schedule of Balance Sheets related to Pension and Postretirement Benefit Plans Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Fair value of plan assets—beginning of year Fair value of plan assets—end of year Total pension plan assets Defined Benefit Plan, Plan Assets, Amount U.S. federal Current Federal Tax Expense (Benefit) Merger Fields, Well Abandonments and Field Economic Limits Merger Fields, Well Abandonments And Field Economic Limits [Member] Merger Fields, Well Abandonments And Field Economic Limits Schedule of Share Based Compensation Expense Schedule Of Share Based Compensation Expense [Table Text Block] Schedule of Share Based Compensation Expense [Table Text Block] Other Commitments [Line Items] Other Commitments [Line Items] Increase (decrease) in Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] CONDENSED CONSOLIDATING FINANCIAL INFORMATION Condensed Financial Statements [Text Block] Schedule of Net Periodic Pension and Postretirement Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Other long-term liabilities Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Leases Lessee, Leases [Policy Text Block] General and administrative expenses General and administrative expenses Selling, General and Administrative Expense Asset Retirement Obligation, Revision Of Estimate, Type [Axis] Asset Retirement Obligation, Revision Of Estimate, Type [Axis] Asset Retirement Obligation, Revision Of Estimate, Type DEFERRED INCOME TAXES Deferred tax asset Deferred Income Tax Assets, Net Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] NWPL Rockies - Natural Gas Q2 2026 NWPL Rockies - Natural Gas Q2 2026 [Member] NWPL Rockies - Natural Gas Q2 2026 Depreciation, depletion and amortization Depreciation, depletion and amortization Depreciation, Depletion and Amortization Settlement costs Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Finished goods Inventory, Finished Goods, Gross Due from joint interest partners, allowances Allowance For Credit Loss, Due From Joint Ventures Allowance For Credit Loss, Due From Joint Ventures Revolving Credit Facility Revolving Credit Facility Revolving Credit Facility [Member] Present value of lease liabilities Finance Lease, Liability Arrangement Duration Trading Arrangement Duration Earnings (loss) of acquiree since acquisition date, actual Business Combination, Acquiree's Earnings (Loss) since Acquisition Date, Actual Pension Plan Assets - Gross Plan Assets Gross [Member] Sum of all major categories of plan assets based on the nature and risk of assets in an employer's plan(s). Segments [Axis] Segments [Axis] Liabilities assumed in the Aera Merger Defined Benefit Plan, Benefit Obligation, Business Combination Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Other, net Payment for (Proceeds from) Other Investing Activity STOCK-BASED COMPENSATION Share-Based Payment Arrangement [Text Block] Total Number of Shares Purchased (in shares) Stock Repurchased and Retired During Period, Shares Other Divestitures Other Divestitures [Member] Other Divestitures Cash Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Operating Leases Operating Lease, Weighted Average Remaining Lease Term [Abstract] Operating Lease, Weighted Average Remaining Lease Term Restructuring cost, expected Restructuring and Related Cost, Expected Cost Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Net periodic benefit costs Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] Operating costs Oil and Gas, Production Cost, Period Cost Forfeited or Cancelled (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value PENSION AND POSTRETIREMENT BENEFIT PLANS Retirement Benefits [Text Block] Business Combination [Line Items] Business Combination [Line Items] Loss on early extinguishment of debt Net loss on early extinguishment of debt Gain (Loss) on Extinguishment of Debt Contingent liability Equity Method Investments, Contingent Liabilities, Noncurrent Equity Method Investments, Contingent Liabilities, Noncurrent Credit Facility [Domain] Credit Facility [Domain] Fair value of derivative contracts Derivative Liability, Current Vesting percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Decommissioning liability, liabilities incurred Decommissioning Liability, Liabilities Incurred Decommissioning Liability, Liabilities Incurred Repurchases of common stock Stock repurchase Treasury Stock, Value, Acquired, Cost Method Investment, Name [Axis] Investment, Name [Axis] Debt instrument, interest rate, stated percentage Interest rate Debt Instrument, Interest Rate, Stated Percentage Operating lease Operating lease liability Operating Lease, Liability, Noncurrent Entity Voluntary Filers Entity Voluntary Filers Gross Amounts at Fair Value Derivative Asset, Subject to Master Netting Arrangement, before Offset Alternative Base Rate Alternative Base Rate [Member] Alternative Base Rate Member Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Entity Registrant Name Entity Registrant Name Asset Retirement Obligation, Revision Of Estimate, Type [Domain] Asset Retirement Obligation, Revision Of Estimate, Type [Domain] Asset Retirement Obligation, Revision Of Estimate, Type [Domain] Amortization of prior service credit Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Compensation-related liabilities Deferred Compensation Liability, Classified, Noncurrent Net periodic benefit costs Net periodic benefit costs Defined Benefit Plan, Net Periodic Benefit Cost (Credit) After 90 Days, Before First Anniversary Date Debt Instrument, Redemption, Period Two [Member] Schedule of Reconciliation of Capital Investments from Segments to Consolidated Segment, Reconciliation of Other Items from Segments to Consolidated [Table Text Block] Revision of Prior Period [Domain] Revision of Prior Period [Domain] Total operating lease costs Lease Cost, Excluding Finance Lease Costs And Sublease Income Lease Cost, Excluding Finance Lease Costs And Sublease Income Interest cost on projected benefit obligation Interest cost on projected benefit obligation Defined Benefit Plan, Interest Cost Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Related Party [Axis] Related and Nonrelated Parties [Axis] Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Percent [Abstract] 2021 Incentive Plan 2021 Incentive Plan [Member] 2021 Incentive Plan Member Reconciliation (Income)/Expense Corporate And Reconciling Items [Member] Corporate And Reconciling Items Noncurrent liabilities Other Noncurrent Liabilities [Member] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Restatement Determination Date: Restatement Determination Date [Axis] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Nontaxable or nondeductible items Effective Income Tax Rate Reconciliation, Nontaxable And Nondeductible Expense, Percent Effective Income Tax Rate Reconciliation, Nontaxable And Nondeductible Expense, Percent Liabilities Assumed Business Combination, Recognized Liability Assumed, Liability [Abstract] Segment Reporting, Revenue Reconciling Item [Line Items] Segment Reporting, Revenue Reconciling Item [Line Items] Name Trading Arrangement, Individual Name Diluted (in dollars per share) Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Diluted Reconciliation of Revenue from Segments to Consolidated [Table] Reconciliation of Revenue from Segments to Consolidated [Table] Debt instrument face amount Debt Instrument, Face Amount Midway Sunset Cogeneration Company Midway Sunset Cogeneration Company [Member] Midway Sunset Cogeneration Company Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Total lease liabilities Total Lease Liability Total Lease Liability Property, plant and equipment Deferred Tax Assets, Property, Plant and Equipment Committed amount Equity Method Investment, Authorized Commitment Amount Equity Method Investment, Authorized Commitment Amount Fair value of share consideration Business Combination, Consideration Transferred, Equity Interest Net Periodic Benefit Cost Assumptions Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] Name Awards Close in Time to MNPI Disclosures, Individual Name Unvested, beginning of year (in dollars per share) Unvested, end of year (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value After Transaction Expense After Transaction [Member] Expense After Transaction Purchase price settlement, net Business Combination, Consideration Transferred, Purchase Price Settlement Business Combination, Consideration Transferred, Purchase Price Settlement Restructuring Type [Axis] Restructuring Type [Axis] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Brookfield BGTF Sierra Aggregator LLC [Member] BGTF Sierra Aggregator LLC Asset retirement obligations Business Combination, Recognized Liability Assumed, Asset Retirement Obligations Business Combination, Recognized Liability Assumed, Asset Retirement Obligations Other Other Accrued Liabilities, Noncurrent Shares issued for warrants Stock Issued During Period, Value, Conversion of Convertible Securities Share-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Schedule of Maturities of our Financing Lease Liabilities Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Bonds Fixed Income Funds [Member] Additions to capitalized exploratory well costs Oil and Gas, Capitalized Exploratory Well Cost, Addition Pending Determination of Proved Reserve Auditor Firm ID Auditor Firm ID Segments [Domain] Segments [Domain] Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Axis] Proved oil and natural gas properties Proved Oil And Gas Properties [Member] Represents the proved oil and gas properties. Line of credit facility, amount available for borrowing Line of Credit Facility, Remaining Borrowing Capacity Greenhouse gas liability, location Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Benefit obligation—beginning of year Benefit obligation—beginning of year Defined Benefit Plan, Benefit Obligation Statement of Financial Position Location, Balance [Domain] Statement of Financial Position Location, Balance [Domain] Increase in inventories Increase (Decrease) in Inventories Other tax credit Effective Income Tax Rate Reconciliation, Tax Credit, Other, Percent Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Accretion expense Asset Retirement Obligation, Accretion Expense Amounts due to (from) affiliates Other Liabilities (Other Assets) Other Liabilities (Other Assets) Netting Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Senior Notes (Unsecured) Senior Notes [Member] Preferred stock (20,000,000 shares authorized at $0.01 par value); no shares outstanding at December 31, 2025 and 2024 Preferred Stock, Value, Issued Share-based payment arrangement, assumed liability Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Share-Based Payment Arrangement Business Combination, Recognized Identifiable Asset Acquired and Liability Assumed, Share-Based Payment Arrangement Fort Apache In Huntington Beach Fort Apache In Huntington Beach [Member] Fort Apache In Huntington Beach Total Liabilities Assumed Business Combination, Recognized Liability Assumed, Liability All Executive Categories All Executive Categories [Member] Payables to the former owners of Aera Payable To Former Owners Of Acquired Businesses, Current Payable To Former Owners Of Acquired Businesses, Current Cash paid for lease liabilities Cash Flow, Lessee [Abstract] Cash Flow, Lessee Schedule of Tax Effects of Temporary differences Resulting in Deferred Income Taxes Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Common stock (200,000,000 shares authorized at $0.01 par value); (110,645,691 and 109,613,585 shares issued; 88,754,165 and 91,100,322 shares outstanding at December 31, 2025 and 2024, respectively) Common Stock, Value, Issued Finance lease Finance Lease, Right-of-Use Asset, after Accumulated Amortization California Resources Corporation California Resources Corporation [Member] California Resources Corporation Title and Position [Axis] Title and Position [Axis] Business combination, integration related costs Business Combination, Integration-Related Cost, Expense Cash acquired from acquisition Cash Acquired from Acquisition Business Combination [Axis] Business Combination [Axis] Share Repurchase Program Common Stock Share Repurchases [Policy Text Block] Common Stock Share Repurchases Policy Text Block Net Assets Acquired, Adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred Interest in joint venture Equity Method Investment, Ownership Percentage Revenue Recognition Concentration Risk [Line Items] Total lease assets Leases, Right-Of-Use Asset Leases, Right-Of-Use Asset PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Risks And Uncertainties Risks And Uncertainties, Policy [Policy Text Block] Risks And Uncertainties, Policy Inventories Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Inventory 2034 Senior Notes 2034 Senior Notes [Member] 2034 Senior Notes Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Electricity revenue Sale Of Electricity [Member] This member represents electricity sales. 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