Partnership Operations, Organization and Basis for Presentation (Details) bbl in Millions, ft³ in Billions	6 Months Ended
Jun. 30, 2015 Segment mi bbl ft³	Dec. 31, 2014
Related Party Transaction [Line Items]
Number of miles of onshore and offshore pipelines \| mi	49,000
Number of barrels of storage capacity \| bbl	225
Number of cubic feet of storage capacity	14
Number of reportable segments \| Segment	5
Limited partners ownership interest (in hundredths)	100.00%
Unit split conversion ratio	2
EPCO and affiliates [Member]
Related Party Transaction [Line Items]
Percentage of Total Units Outstanding (in hundredths)	34.40%
Oiltanking Partners L.P. [Member]
Business Acquisition [Line Items]
Limited partner interests acquired (in hundredths)		65.90%

Refers to number of barrels of storage capacity for petrochemicals, refined products and crude oil.

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- Definition

Refers to number of cubic feet of storage capacity.

+ References

No definition available.

+ Details

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- Definition

Refers to number of miles of onshore and offshore pipelines as a part of assets of the entity.

+ References

No definition available.

+ Details

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- Definition

The number of common units owned (as a percentage) by an affiliate under common control.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

Percentage of voting equity interests acquired in a business combination achieved in stages, including equity interests in the acquiree held by the acquirer immediately before the acquisition date and acquired at the acquisition date.

+ References

No definition available.

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- Definition

The number of units or percentage investment held by one or more members or limited partners of the LLC or LP.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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No definition available.

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

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-Subparagraph (SAB TOPIC 4.C)

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-Glossary Stock Split

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