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Suspended Wells and Exploration Expenses - Aging of Exploratory Well Cost, Capitalized for More than One Year (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | $ 184 | $ 512 | $ 656
2020-2022 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 57 |  |
2017-2019 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 102 |  |
2006-2016 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 25 |  |
WL4-00 - Malaysia |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 36 |  |
WL4-00 - Malaysia | 2020-2022 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 19 |  |
WL4-00 - Malaysia | 2017-2019 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 17 |  |
WL4-00 - Malaysia | 2006-2016 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
PL 891 - Norway |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 30 |  |
PL 891 - Norway | 2020-2022 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 30 |  |
PL 891 - Norway | 2017-2019 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
PL 891 - Norway | 2006-2016 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
West Willow - Alaska |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 29 |  |
West Willow - Alaska | 2020-2022 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
West Willow - Alaska | 2017-2019 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 29 |  |
West Willow - Alaska | 2006-2016 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
Narwhal Trend - Alaska |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 25 |  |
Narwhal Trend - Alaska | 2020-2022 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
Narwhal Trend - Alaska | 2017-2019 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 25 |  |
Narwhal Trend - Alaska | 2006-2016 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
PL782S - Norway |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 19 |  |
PL782S - Norway | 2020-2022 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
PL782S - Norway | 2017-2019 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 19 |  |
PL782S - Norway | 2006-2016 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
Montney - Canada |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 16 |  |
Montney - Canada | 2020-2022 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 8 |  |
Montney - Canada | 2017-2019 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 8 |  |
Montney - Canada | 2006-2016 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
Other of $10 Million or less each |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 29 |  |
Other of $10 Million or less each | 2020-2022 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 0 |  |
Other of $10 Million or less each | 2017-2019 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | 4 |  |
Other of $10 Million or less each | 2006-2016 |  |  |
Capitalized Exploratory Well Costs [Line Items] |  |  |
Exploratory well costs capitalized for a period greater than one year | $ 25 |  |

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- Definition The amount of exploratory well costs that have been capitalized for a period of greater than one year after the completion of drilling. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph b -Publisher FASB -URI https://asc.fasb.org//1943274/2147482274/932-235-50-1B + Details
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