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Inventories Textual (Details) - USD ($) $ in Millions | 1 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Apr. 30, 2018 | Sep. 30, 2018 | Dec. 31, 2017
Inventory [Line Items] |  |  |
LIFO Inventory Amount |  | $ 283 | $ 341
Excess of Replacement or Current Costs over Stated LIFO Value |  | 100 | $ 124
Conoco Phillips Vs Petroleos de Venezuela SA [Member] |  |  |
Inventory [Line Items] |  |  |
Litigation Settlement, Amount Awarded from Other Party | $ 2,000 |  |
Inventory Exchanges [Member] | Conoco Phillips Vs Petroleos de Venezuela SA [Member] |  |  |
Inventory [Line Items] |  |  |
Litigation Settlement, Amount Awarded from Other Party |  | $ 139 |

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- Definition The excess of replacement or current cost over the stated LIFO (last in first out) inventory value when the LIFO inventory method is utilized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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 The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
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- Details
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- Details
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