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Equity Company Information (Schedule Of Corporation's Percentage Ownership Interest) (Details)
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Dec. 31, 2011
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|---|---|
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Upstream [Member] | Aera Energy LLC [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 48.00% |
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Upstream [Member] | BEB Erdgas und Erdoel GmbH [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 50.00% |
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Upstream [Member] | Cameroon Oil Transportation Company S.A. [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 41.00% |
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Upstream [Member] | Castle Peak Power Company Limited [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 60.00% |
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Upstream [Member] | Golden Pass LNG Terminal LLC [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 18.00% |
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Upstream [Member] | Nederlandse Aardolie Maatschappij B.V. [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 50.00% |
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Upstream [Member] | Qatar Liquefied Gas Company Limited [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 10.00% |
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Upstream [Member] | Qatar Liquefied Gas Company Limited 2 [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 24.00% |
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Upstream [Member] | Ras Laffan Liquefied Natural Gas Company Limited [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 25.00% |
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Upstream [Member] | Ras Laffan Liquefied Natural Gas Company Limited II [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 31.00% |
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Upstream [Member] | Ras Laffan Liquefied Natural Gas Company Limited (3) [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 30.00% |
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Upstream [Member] | South Hook LNG Terminal Company Limited [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 24.00% |
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Upstream [Member] | Tengizchevroil, LLP [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 25.00% |
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Upstream [Member] | Terminale GNL Adriatico S.R.L. [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 71.00% |
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Downstream [Member] | Chalmette Refining, LLC [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 50.00% |
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Downstream [Member] | Fujian Refining And Petrochemical Co. LTD. [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 25.00% |
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Downstream [Member] | Saudi Aramco Mobil Refinery Company LTD. [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 50.00% |
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Chemical [Member] | Al-Jubail Petrochemical Company [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 50.00% |
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Chemical [Member] | Infineum Holdings B.V. [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 50.00% |
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Chemical [Member] | Saudi Yanbu Petrochemical Co. [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 50.00% |
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Chemical [Member] | Toray Tonen Specialty Separator Godo Kaisha [Member]
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| Subsidiary or Equity Method Investee [Line Items] | |
| Percentage Ownership Interest | 50.00% |