The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 323

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 810

-SubTopic 10

-Section 50

-Paragraph 5A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=28200181&loc=SL6759159-111685

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GENERAL BUSINESS DESCRIPTION (Details)	12 Months Ended
GENERAL BUSINESS DESCRIPTION (Details)	Dec. 31, 2014 item	Dec. 31, 2013	Dec. 31, 2012
General business description
Number of operating segments	5us-gaap_NumberOfOperatingSegments
EEP
GENERAL BUSINESS DESCRIPTION
Economic interest (as a percent)	33.70%	20.60%	21.80%
Sponsored Investments \| Alliance Pipeline
GENERAL BUSINESS DESCRIPTION
Interest (as a percent)	50.00%
Sponsored Investments \| The fund
GENERAL BUSINESS DESCRIPTION
Economic interest (as a percent)	66.40%	67.30%
Sponsored Investments \| EEP
GENERAL BUSINESS DESCRIPTION
Economic interest (as a percent)	33.70%	20.60%