Property, Plant and Equipment - Additional Information (Detail) $ in Millions	3 Months Ended
Mar. 31, 2025 USD ($) well	Dec. 31, 2024 USD ($)
Capitalized Exploratory Well Costs [Line Items]
Capitalized exploratory well costs	$ 1,038	$ 1,010
Well costs incurred and expensed	21
Capitalized exploratory well costs that have been capitalized for period greater than one year	$ 881
Stabroek Block, Offshore Guyana
Capitalized Exploratory Well Costs [Line Items]
Project interest percentage	30.00%
Suspended capitalized exploratory wells \| well	37
Capitalized exploratory well costs	$ 967
Capitalized well costs percentage	93.00%
Block 42, Suriname
Capitalized Exploratory Well Costs [Line Items]
Project interest percentage	33.00%
Capitalized well costs percentage	5.00%
North Malay Basin, Offshore Peninsular Malaysia
Capitalized Exploratory Well Costs [Line Items]
Project interest percentage	50.00%
Capitalized well costs percentage	2.00%
Capitalized exploratory wells suspended greater than one year \| well	2

Represents capitalized well cost greater than one year attributable to project.

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Project interest percentage.

+ References

No definition available.

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- Definition

Amount of exploratory well cost capitalized after completion of drilling in oil- and gas-producing activities.

+ References

No definition available.

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Well costs incurred and expensed in the same year

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 932
-SubTopic 360
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477385/932-360-S50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 932
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(7)(ii)(B)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479664/932-10-S99-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 932
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10(c)(7)(ii)(A))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479664/932-10-S99-1

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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://www.xbrl.org/2003/role/disclosureRef
-Topic 932
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477215/932-235-50-1B

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- Definition

Amount of exploratory well cost capitalized for period of greater than one year after completion of drilling in oil- and gas-producing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 932
-SubTopic 235
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477215/932-235-50-1B

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- Definition

Number of projects for exploratory well cost capitalized for period of greater than one year after completion of drilling in oil- and gas-producing activities.

+ References

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