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Equity Method Investments and Variable Interest Entities (Schedule of Variable Interest Entities) (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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Variable Interest Entity, Not Primary Beneficiary | Affinity joint venture (U.K. MFTS project) |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | $ 14 | $ 16
Total Liabilities | 10 | 8
Variable Interest Entity, Not Primary Beneficiary | Aspire Defence Limited |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 67 | 68
Total Liabilities | 5 | 5
Variable Interest Entity, Not Primary Beneficiary | JKC joint venture (Ichthys LNG project) |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 546 | 427
Total Liabilities | 29 | 32
Variable Interest Entity, Not Primary Beneficiary | U.K. Road project joint ventures |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 40 | 37
Total Liabilities | 21 | 10
Variable Interest Entity, Not Primary Beneficiary | Middle East Petroleum Corporation (EBIC Ammonia project) |  |
Schedule of Equity Method Investments [Line Items] |  |
Total Assets | 47 | 51
Total Liabilities | 1 | 1
Variable Interest Entity, Primary Beneficiary | Aspire Defence Limited |  |
Schedule of Equity Method Investments [Line Items] |  |
Consolidated VIEs, Total assets | 530 | 589
Consolidated VIEs, Total liabilities | 283 | 324
Variable Interest Entity, Primary Beneficiary | KJV-G joint venture (Gorgon LNG project) |  |
Schedule of Equity Method Investments [Line Items] |  |
Consolidated VIEs, Total assets | 0 | 13
Consolidated VIEs, Total liabilities | 17 | 19
Variable Interest Entity, Primary Beneficiary | Fasttrax Limited (Fasttrax project) |  |
Schedule of Equity Method Investments [Line Items] |  |
Consolidated VIEs, Total assets | 45 | 49
Consolidated VIEs, Total liabilities | $ 24 | $ 34

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