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Property, Plant and Equipment (Summary of Changes in Suspended Exploratory Well Costs) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Property, Plant and Equipment [Abstract] |  |  |
Beginning balance | $ 126 | $ 66 | $ 18
Acquired WPX costs | 0 | 0 | 34
Additions pending determination of proved reserves | 522 | 462 | 206
Charges to exploration expense | (1) | (1) | (2)
Reclassifications to proved properties | (511) | (401) | (190)
Ending balance | $ 136 | $ 126 | $ 66

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- Definition Acquired costs. + References No definition available. + Details
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- Definition Additions to capitalized exploratory well costs that were added during the reporting period pending the determination of proved reserves. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-1B + Details
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- Definition Amount of expense for capitalized exploratory well costs for which proved reserves were not found at the exploratory well. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 932 -SubTopic 235 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-1B + Details
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- Definition The amount of capitalized exploratory well costs that is pending the determination of proved reserves. This does not include amounts that were capitalized and subsequently expensed in the same annual period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-1B + Details
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- Definition Previously capitalized costs of the drilling of wells that were reclassified as part of the costs of the enterprise's wells and related equipment and facilities at the time that proved reserves were found. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-1B + Details
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