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Cash Flow Information - Parenthetical (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Cash Flow Information [Abstract] |  |  |
Discretionary payment to domestic qualified pension plan. | $ 324 | $ 120 | $ 600
ConocoPhillips Vs Petroleos de Venezuela SA [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Cash Proceeds from Legal Settlements | $ 330 | 430 |
Burlington Resources Inc Vs The Republic Of Ecuador [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Cash Proceeds from Legal Settlements |  | $ 262 | 75
Currency Swap [Member] |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |
Payments for Foreign Currency Derivative Instruments Not Designated as Hedging Instruments |  |  | $ 180

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- Definition Amount of discretionary contributions made by an employer to a defined contribution plan. + References No definition available. + Details
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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 No definition available. + Details
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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 No definition available. + Details
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- Definition Cash received for the settlement of litigation during the current period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3536-108585 + Details
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- Details
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- Details
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