| Accounts Payable, Trade, Current | 790.00M | as of 2025-12-31 |
| Current Federal Tax Expense (Benefit) | 285.00M | 2025-01-01 → 2025-12-31 |
| Current State and Local Tax Expense (Benefit) | 16.00M | 2025-01-01 → 2025-12-31 |
| Current Foreign Tax Expense (Benefit) | 0 | 2025-01-01 → 2025-12-31 |
| Oil and Gas Sales Payable, Current | 1.49B | as of 2025-12-31 |
| Current Income Tax Expense (Benefit) | 301.00M | 2025-01-01 → 2025-12-31 |
| Capitalized Exploratory Well Costs | 223.00M | as of 2025-12-31 |
| Deferred Federal Income Tax Expense (Benefit) | 406.00M | 2025-01-01 → 2025-12-31 |
| Capitalized Exploratory Well Cost, Additions Pending Determination of Proved Reserves | 555.00M | 2025-01-01 → 2025-12-31 |
| Deferred State and Local Income Tax Expense (Benefit) | 78.00M | 2025-01-01 → 2025-12-31 |
| Reclassification to Well, Facilities, and Equipment Based on Determination of Proved Reserves | 624.00M | 2025-01-01 → 2025-12-31 |
| Capitalized Exploratory Well Cost, Charged to Expense | 1.00M | 2025-01-01 → 2025-12-31 |
| Asset Retirement Obligation, Liabilities Incurred | 58.00M | 2025-01-01 → 2025-12-31 |
| Asset Retirement Obligation, Liabilities Settled | 65.00M | 2025-01-01 → 2025-12-31 |
| Operating Lease, Liability, Current | 95.00M | as of 2025-12-31 |
| Asset Retirement Obligation, Revision of Estimate | 55.00M | 2025-01-01 → 2025-12-31 |
| Other Tax Expense (Benefit) | 215.00M | 2025-01-01 → 2025-12-31 |
| Other Accrued Liabilities, Current | 60.00M | as of 2025-12-31 |
| Federal Income Tax Expense (Benefit), Continuing Operations | 691.00M | 2025-01-01 → 2025-12-31 |
| State and Local Income Tax Expense (Benefit), Continuing Operations | 94.00M | 2025-01-01 → 2025-12-31 |
| FederalStateAndLocalIncomeTaxExpenseBenefitContinuingOperations | 0 | 2025-01-01 → 2025-12-31 |
| Share-based Payment Arrangement, Expense | 99.00M | 2025-01-01 → 2025-12-31 |
| Property, Plant and Equipment, Other, Accumulated Depreciation | 936.00M | as of 2025-12-31 |
| Property, Plant and Equipment, Other, Net | 1.69B | as of 2025-12-31 |
| Unproved Oil and Gas Property, Successful Effort Method | 1.91B | as of 2025-12-31 |
| Proved Oil and Gas Property, Successful Effort Method | 58.57B | as of 2025-12-31 |
| Oil and Gas Property, Successful Effort Method, Gross | 60.48B | as of 2025-12-31 |
| Oil and Gas Property, Successful Effort Method, Accumulated Depreciation, Depletion and Amortization | 36.75B | as of 2025-12-31 |
| Undistributed Earnings (Loss) Available to Common Shareholders, Basic | 2.64B | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount | 728.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount | 74.00M | 2025-01-01 → 2025-12-31 |
| Share-based Payment Arrangement, Expense, Tax Benefit | 16.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Credit, Foreign, Amount | 2.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Tax Credit, Amount | 32.00M | 2025-01-01 → 2025-12-31 |
| Interest Income (Expense), Nonoperating, Net | -455.00M | 2025-01-01 → 2025-12-31 |
| Line of Credit Facility, Commitment Fee Amount | 5.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount | -3.00M | 2025-01-01 → 2025-12-31 |
| Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount | 2.00M | 2025-01-01 → 2025-12-31 |
| SegmentReportingOtherItemAmount | -22.00M | 2025-01-01 → 2025-12-31 |
| Dividends, Common Stock | 608.00M | 2025-01-01 → 2025-12-31 |
| Undistributed Earnings (Loss) Available to Common Shareholders, Diluted | 2.64B | 2025-01-01 → 2025-12-31 |
| Gain (Loss) on Disposition of Oil and Gas Property | 0 | 2025-01-01 → 2025-12-31 |
| Treasury Stock, Value, Acquired, Cost Method | 1.08B | 2025-01-01 → 2025-12-31 |
| Derivative, Fair Value, Net | 193.00M | as of 2025-12-31 |
| Deferred Income Taxes and Other Tax Liabilities, Noncurrent | 2.63B | as of 2025-12-31 |
| Costs Incurred, Acquisition of Unproved Oil and Gas Properties | 224.00M | 2025-01-01 → 2025-12-31 |
| Costs Incurred, Acquisition of Oil and Gas Properties with Proved Reserves | 138.00M | 2025-01-01 → 2025-12-31 |
| Costs Incurred, Exploration Costs | 581.00M | 2025-01-01 → 2025-12-31 |
| Costs Incurred, Development Costs | 3.06B | 2025-01-01 → 2025-12-31 |
| Costs Incurred, Oil and Gas Property Acquisition, Exploration, and Development Activities | 4.00B | 2025-01-01 → 2025-12-31 |
| Deferred Tax Assets, Operating Loss Carryforwards | 375.00M | as of 2025-12-31 |
| Deferred Tax Assets, Capital Loss Carryforwards | 522.00M | as of 2025-12-31 |
| Results of Operations, Revenue from Oil and Gas Producing Activities | 11.22B | 2025-01-01 → 2025-12-31 |
| Results of Operations, Production or Lifting Costs | 3.57B | 2025-01-01 → 2025-12-31 |
| Results of Operations, Exploration Expense | 43.00M | 2025-01-01 → 2025-12-31 |
| Results of Operations, Accretion of Asset Retirement Obligations | 49.00M | 2025-01-01 → 2025-12-31 |
| Results of Operations, Depreciation, Depletion, Amortization and Accretion | 3.48B | 2025-01-01 → 2025-12-31 |
| Operating Lease, Cost | 85.00M | 2025-01-01 → 2025-12-31 |
| Short-term Lease, Cost | 275.00M | 2025-01-01 → 2025-12-31 |
| Results of Operations, Income Tax Expense | 888.00M | 2025-01-01 → 2025-12-31 |
| Lease, Cost | 367.00M | 2025-01-01 → 2025-12-31 |
| Results of Operations, Oil and Gas Producing Activities Net Income (Excluding Corporate Overhead and Interest Costs) | 3.20B | 2025-01-01 → 2025-12-31 |
| Right-of-Use Asset Obtained in Exchange for Finance Lease Liability | 15.00M | 2025-01-01 → 2025-12-31 |
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 300.00M | 2025-01-01 → 2025-12-31 |
| Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Cash Inflows | 81.16B | as of 2025-12-31 |
| Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Development Costs | 6.04B | as of 2025-12-31 |
| Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Production Costs | 38.02B | as of 2025-12-31 |
| Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Income Tax Expense | 5.65B | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year One | 7.00M | as of 2025-12-31 |
| Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Net Cash Flows | 31.45B | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year Two | 7.00M | as of 2025-12-31 |
| Future Net Cash Flows Relating to Proved Oil and Gas Reserves, Ten Percent Annual Discount for Estimated Timing of Cash Flows | 12.68B | as of 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Asset Retirement Obligations | 206.00M | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year Three | 6.00M | as of 2025-12-31 |
| Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves | 18.77B | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year Four | 3.00M | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, Year Five | 1.00M | as of 2025-12-31 |
| Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities | 219.00M | as of 2025-12-31 |
| Finance Lease, Liability, to be Paid, after Year Five | 0 | as of 2025-12-31 |
| Finance Lease, Liability, Payment, Due | 24.00M | as of 2025-12-31 |
| Net Increase (Decrease) in Sales and Transfer Prices and Production Costs | -3.03B | 2025-01-01 → 2025-12-31 |
| Changes in Estimated Future Development Costs | 582.00M | 2025-01-01 → 2025-12-31 |
| Sales and Transfers of Oil and Gas Produced, Net of Production Costs | 7.66B | 2025-01-01 → 2025-12-31 |
| Extensions, Discoveries, Additions and Improved Recovery, Less Related Costs | 4.37B | 2025-01-01 → 2025-12-31 |
| Increase Due to Purchases of Minerals in Place | 791.00M | 2025-01-01 → 2025-12-31 |
| Decrease Due to Sales of Minerals in Place | 744.00M | 2025-01-01 → 2025-12-31 |
| Previously Estimated Development Costs Incurred | 1.79B | 2025-01-01 → 2025-12-31 |
| Revisions of Previous Quantity Estimates | 1.43B | 2025-01-01 → 2025-12-31 |
| Standardized Measure of Discounted Future Net Cash Flow Relating to Proved Oil and Gas Reserves, Accretion of Discount | 1.62B | 2025-01-01 → 2025-12-31 |
| Finance Lease, Liability, Undiscounted Excess Amount | 1.00M | as of 2025-12-31 |
| Changes in Future Income Tax Expense Estimates on Future Cash Flows Related to Proved Oil and Gas Reserves | -163.00M | 2025-01-01 → 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year One | 106.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Two | 66.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Three | 55.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Four | 49.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, Year Five | 24.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid, after Year Five | 1.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, to be Paid | 301.00M | as of 2025-12-31 |
| Derivative, Collateral, Right to Reclaim Cash | 0 | as of 2025-12-31 |
| Deferred Tax Assets, Other | 18.00M | as of 2025-12-31 |
| Derivative, Collateral, Obligation to Return Cash | 0 | as of 2025-12-31 |
| Deferred Tax Assets, Gross | 1.52B | as of 2025-12-31 |
| Deferred Tax Assets, Valuation Allowance | 829.00M | as of 2025-12-31 |
| Deferred Tax Assets, Net of Valuation Allowance | 690.00M | as of 2025-12-31 |
| Lessee, Operating Lease, Liability, Undiscounted Excess Amount | 25.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Gross | 3.32B | as of 2025-12-31 |
| Deferred Tax Assets, Net | 2.63B | as of 2025-12-31 |
| Long-term Debt, Gross | 8.41B | as of 2025-12-31 |
| Deferred Tax Liabilities, Property, Plant and Equipment | 3.25B | as of 2025-12-31 |
| Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years | 236.00M | as of 2025-12-31 |
| Deferred Tax Liabilities, Other | 66.00M | as of 2025-12-31 |
| Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets | 444.00M | as of 2025-12-31 |
| Defined Benefit Plan, Pension Plan with Projected Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation | 613.00M | as of 2025-12-31 |
| Unrecorded Unconditional Purchase Obligation, Purchases | 0 | 2025-01-01 → 2025-12-31 |
| Long-Term Debt, Maturity, Year One | 1.00B | as of 2025-12-31 |
| Defined Contribution Plan, Cost | 47.00M | 2025-01-01 → 2025-12-31 |
| Long-Term Debt, Maturity, Year Two | 463.00M | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Three | 325.00M | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Four | 0 | as of 2025-12-31 |
| Long-Term Debt, Maturity, Year Five | 585.00M | as of 2025-12-31 |
| Long-Term Debt, Maturity, after Year Five | 6.04B | as of 2025-12-31 |
| Debt Instrument, Unamortized Discount (Premium), Net | -23.00M | as of 2025-12-31 |
| Unrecognized Tax Benefits | 111.00M | as of 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions | 10.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities | 4.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits, Interest on Income Taxes Expense | 18.00M | 2025-01-01 → 2025-12-31 |
| Unrecognized Tax Benefits that Would Impact Effective Tax Rate | 111.00M | as of 2025-12-31 |
| Oil and Gas Joint Interest Billing Receivables, Current | 245.00M | as of 2025-12-31 |
| Other Receivables, Gross, Current | 20.00M | as of 2025-12-31 |
| APIC, Share-based Payment Arrangement, Increase for Cost Recognition | 99.00M | 2025-01-01 → 2025-12-31 |