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Business Segment Information - Schedule of Selected Financial Information by Reportable Segment (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2021 USD ($) | Dec. 31, 2023 USD ($) purchaser | Dec. 31, 2022 USD ($) purchaser | Dec. 31, 2021 USD ($) purchaser
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Gains on Asset Dispositions, Net |  | $ 95 | $ 74 | $ 17
Operating Revenues and Other |  | 24,186 | 25,702 | 18,642
Depreciation, Depletion and Amortization |  | 3,492 | 3,542 | 3,651
Operating Income (Loss) |  | 9,603 | 9,966 | 6,102
Interest Income |  | 240 | 85 | 3
Other Income (Expense) |  | (6) | 29 | 6
Interest Expense, Net |  | 148 | 179 | 178
Income Before Income Taxes |  | 9,689 | 9,901 | 5,933
Income Tax Provision |  | 2,095 | 2,142 | 1,269
Additions to Oil and Gas Properties, Excluding Dry Hole Costs |  | 5,579 | 4,727 | 3,617
Total Property, Plant and Equipment, Net |  | 32,297 | 29,429 | 28,426
Total Assets |  | $ 43,857 | $ 41,371 | $ 38,236
Number of significant purchaser | purchaser |  | 3 | 3 | 2
First sale with significant purchaser | purchaser |  | 1 | 1 | 1
Sales made with second significant purchaser | purchaser |  | 2 | 1 |
Sales made with third significant purchaser | purchaser |  |  | 1 | 1
Dry hole costs |  | $ 1 | $ 45 | $ 71
Crude Oil and Condensate |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 13,748 | 16,367 | 11,125
Natural Gas Liquids |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 1,884 | 2,648 | 1,812
Natural Gas |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 1,744 | 3,781 | 2,444
Gains (Losses) on Mark-to-Market Financial Commodity Derivative Contracts, Net |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue not from contract with customer |  | 818 | (3,982) | (1,152)
Gathering, Processing and Marketing |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 5,806 | 6,696 | 4,288
Other, Net |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue not from contract with customer |  | 91 | 118 | 108
United States |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Gains on Asset Dispositions, Net |  | 53 | 77 | (40)
Operating Revenues and Other |  | 23,916 | 25,394 | 18,265
Depreciation, Depletion and Amortization |  | 3,414 | 3,469 | 3,558
Operating Income (Loss) |  | 9,516 | 9,880 | 6,013
Interest Income |  | 223 | 81 | 3
Other Income (Expense) |  | (6) | (17) | (14)
Interest Expense, Net |  | 148 | 179 | 178
Income Before Income Taxes |  | 9,585 | 9,765 | 5,824
Income Tax Provision |  | 2,093 | 2,106 | 1,247
Additions to Oil and Gas Properties, Excluding Dry Hole Costs |  | 5,413 | 4,599 | 3,557
Total Property, Plant and Equipment, Net |  | 31,876 | 29,109 | 28,213
Total Assets |  | 42,674 | 40,349 | 37,436
Amount of sales with a single significant purchaser in the United States segment |  | 3,300 | 3,300 | 2,700
Amount of sales with a second significant purchaser in the United States segment. |  | 2,600 | 3,100 | 2,600
Amount of sales with a third significant purchaser in the United States segment. |  | 2,600 | 3,000 |
United States | Crude Oil and Condensate |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 13,734 | 16,349 | 11,094
United States | Natural Gas Liquids |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 1,884 | 2,648 | 1,812
United States | Natural Gas |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 1,530 | 3,489 | 2,156
United States | Gains (Losses) on Mark-to-Market Financial Commodity Derivative Contracts, Net |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue not from contract with customer |  | 818 | (3,982) | (1,152)
United States | Gathering, Processing and Marketing |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 5,806 | 6,695 | 4,287
United States | Other, Net |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue not from contract with customer |  | 91 | 118 | 108
Trinidad |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Gains on Asset Dispositions, Net |  | 42 | (4) | (2)
Operating Revenues and Other |  | 270 | 307 | 300
Depreciation, Depletion and Amortization |  | 78 | 73 | 87
Operating Income (Loss) |  | 124 | 122 | 151
Interest Income |  | 12 | 2 | 0
Other Income (Expense) |  | 1 | 46 | 8
Interest Expense, Net |  | 0 | 0 | 0
Income Before Income Taxes |  | 137 | 170 | 159
Income Tax Provision |  | 2 | 35 | 66
Additions to Oil and Gas Properties, Excluding Dry Hole Costs |  | 162 | 122 | 55
Total Property, Plant and Equipment, Net |  | 404 | 307 | 204
Total Assets |  | 1,063 | 879 | 637
Trinidad | Crude Oil and Condensate |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 14 | 18 | 31
Trinidad | Natural Gas Liquids |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 0 | 0 | 0
Trinidad | Natural Gas |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 214 | 292 | 270
Trinidad | Gains (Losses) on Mark-to-Market Financial Commodity Derivative Contracts, Net |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue not from contract with customer |  | 0 | 0 | 0
Trinidad | Gathering, Processing and Marketing |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 0 | 1 | 1
Trinidad | Other, Net |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue not from contract with customer |  | 0 | 0 | 0
Other International |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Gains on Asset Dispositions, Net | $ 58 | 0 | 1 | 59
Operating Revenues and Other |  | 0 | 1 | 77
Depreciation, Depletion and Amortization |  | 0 | 0 | 6
Operating Income (Loss) |  | (37) | (36) | (62)
Interest Income |  | 5 | 2 | 0
Other Income (Expense) |  | (1) | 0 | 12
Interest Expense, Net |  | 0 | 0 | 0
Income Before Income Taxes |  | (33) | (34) | (50)
Income Tax Provision |  | 0 | 1 | (44)
Additions to Oil and Gas Properties, Excluding Dry Hole Costs |  | 4 | 6 | 5
Total Property, Plant and Equipment, Net |  | 17 | 13 | 9
Total Assets |  | 120 | 143 | 163
Pretax impairment charges |  | 18 | 15 | 45
Dry hole costs |  |  |  | 42
Other International | Crude Oil and Condensate |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 0 | 0 | 0
Other International | Natural Gas Liquids |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 0 | 0 | 0
Other International | Natural Gas |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 0 | 0 | 18
Other International | Gains (Losses) on Mark-to-Market Financial Commodity Derivative Contracts, Net |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue not from contract with customer |  | 0 | 0 | 0
Other International | Gathering, Processing and Marketing |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue from contract with customer |  | 0 | 0 | 0
Other International | Other, Net |  |  |  |
Schedule of Segment Reporting Information By Segment [Abstract] |  |  |  |
Revenue not from contract with customer |  | $ 0 | $ 0 | $ 0

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. 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