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Reduction to previous award.

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Revised amount awarded from other party in judgment or settlement of litigation.

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The duration from whence interests were sold.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount awarded from other party in judgment or settlement of litigation.

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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.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
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The total number of new claims filed pertaining to a loss contingency during the period.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
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Cash received for the settlement of litigation during the current period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
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Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of the unrecorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

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Amount of fixed and determinable portion of unrecorded unconditional purchase obligation to be paid after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Contingencies and Commitments - Narrative (Details) $ in Millions		1 Months Ended				12 Months Ended	69 Months Ended
	Aug. 02, 2019 USD ($)	Oct. 31, 2020	Mar. 31, 2019 USD ($)	Aug. 31, 2018 USD ($)	Apr. 30, 2018 USD ($)	Dec. 31, 2017 lawsuit	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	May 10, 2021 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Aug. 29, 2019 USD ($)
Loss Contingencies [Line Items]
Purchase obligation							$ 340
2024							7
2025							7
2026							7
2027							7
2028							283
2029 and after							11,000
Total payments under agreement							26	$ 26	$ 27
Outer Continental Shelf Lease \| Phillips Petroleum Company
Loss Contingencies [Line Items]
Ownership percentage in equity investment		25.00%
Sale of interest, duration		30 years
Barossa Project \| Asia Pacific
Loss Contingencies [Line Items]
Receivable in dispute											$ 200	$ 200
Barossa Project \| Asia Pacific \| Operating Segments
Loss Contingencies [Line Items]
Receivable in dispute										$ 200
ConocoPhillips Entities \| Several Louisiana parishes and the State of Louisiana against oil and gas companies
Loss Contingencies [Line Items]
Loss contingency, number of new claims filed \| lawsuit						22
VENEZUELA \| ConocoPhillips Versus Petroleos de Venezuela ICISD
Loss Contingencies [Line Items]
Litigation settlement, amount awarded			$ 8,700
Litigation award reduction													$ 227
Litigation settlement, amount awarded revised							8,500
VENEZUELA \| ConocoPhillips vs Petroleos De Venezuela ICC
Loss Contingencies [Line Items]
Litigation settlement, amount awarded	$ 33			$ 500	$ 2,000
Litigation settlement, initial payment term				90 days
Litigation settlement, remaining payment term				4 years 6 months
Proceeds from legal settlements							$ 777