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Operating Segments, Geographic Analysis and Major Customers (Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2016 | Dec. 31, 2015
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Operating segments, geographical analysis and major customers |  |
Long-lived assets | $ 21,093 | $ 20,809
U.S. |  |
Operating segments, geographical analysis and major customers |  |
Long-lived assets | 6,181 | 7,451
Trinidad |  |
Operating segments, geographical analysis and major customers |  |
Long-lived assets | 3,977 | 1,766
Korea |  |
Operating segments, geographical analysis and major customers |  |
Long-lived assets | 1,459 | 2,048
Other countries |  |
Operating segments, geographical analysis and major customers |  |
Long-lived assets | 9,476 | 9,544
Switzerland |  |
Operating segments, geographical analysis and major customers |  |
Long-lived assets | $ 2 | $ 2

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e9038-108599 + Details
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