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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

X

- 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

The development corporation's ownership interest in the company that consolidates a VIE.

+ References

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Payment to Partner

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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

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- Definition

Portion of equity (net assets) in a variable interest entity (VIE) not attributable, directly or indirectly, to the parent entity. That is, this is the portion of equity in a VIE that is attributable to the noncontrolling interest (previously referred to as minority interest).

+ References

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- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 225



-SubTopic 10



-Section S99



-Paragraph 2



-Subparagraph (SX 210.5-03.1(e))



-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Related Parties



-URI http://asc.fasb.org/extlink&oid=16382449



Reference 3: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 946



-SubTopic 225



-Section S99



-Paragraph 1



-Subparagraph (SX 210.6-07.1(c))



-URI http://asc.fasb.org/extlink&oid=6488393&loc=d3e606610-122999

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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.

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