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Equity Method Investments And Variable Interest Entities (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2015 | Jun. 30, 2015 | Jun. 30, 2014
Schedule of Equity Method Investments [Line Items] |  |  |
Noncontrolling Interest in Variable Interest Entity | $ 40 |  |
Payment to Partner | $ 8 |  |
EBIC Ammonia Project [Member] | Parent Company [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Ownership Percentage In Development Corporation Which Has Minority Interest In Company That Consolidates VIE |  | 65.00% |
EBIC Ammonia Project [Member] | Development Corporation [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Ownership Percentage Of Development Corporation In Company That Consolidates VIE |  | 25.00% |
EBIC Ammonia Project [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Equity Method Investments |  | $ 38 |
Transactions with Related Parties [Member] |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |
Revenue from Related Parties |  | $ 127 | $ 144

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- Definition The percentage of ownership the enterprise has in a development corporation, which has minority interest in company that consolidates VIE. + References No definition available. + Details
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- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35755396&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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