Gross proceeds from the sale of common units excluding any related fees.

No definition available.

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- Definition

The remaining number of limited partner units available for issuance, after taking into account limited partner units issued to date. The limited partners are partners of a publicly traded limited partnership or master limited partnership. Limited partners have limited liability and do not manage the partnership.

+ References

No definition available.

+ Details

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- Definition

The dollar value of the remaining amount of limited partner units available for issuance, after taking into account limited partner units issued to date. The limited partners are partners of a publicly traded limited partnership or master limited partnership. Limited partners have limited liability and do not manage the partnership.

+ References

No definition available.

+ Details

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- Definition

"The dollar amount of limited partner units authorized to be issued in amounts, at prices and on terms to be determined by market conditions and other factors at the time of our offerings.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

The number of common units issued in conjunction with the underwriters over-allotment options.

+ References

No definition available.

+ Details

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- Details

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- Definition

The principal amount of senior notes issued during the period, under the universal shelf registration statement.

+ References

No definition available.

+ Details

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- Definition

The number of limited partner units authorized to be issued.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 5

-Subparagraph (SAB TOPIC 4.F)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section F

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- Definition

Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 272

-SubTopic 10

-Section 50

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

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- Definition

The cash inflow from the issuance of common limited partners units during the period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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- Definition

Amount per share or per unit of equity securities issued by non-development stage entity.

+ References

No definition available.

+ Details

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Equity and Distributions, Issuances of Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended			9 Months Ended		0 Months Ended	9 Months Ended				1 Months Ended		0 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 EPCO and affiliates [Member]	Sep. 30, 2013 Distribution Reinvestment Plan [Member]	Sep. 30, 2012 Distribution Reinvestment Plan [Member]	Nov. 07, 2013 Distribution Reinvestment Plan [Member] EPCO and affiliates [Member]	Sep. 30, 2013 Distribution Reinvestment Plan [Member] EPCO and affiliates [Member]	Sep. 30, 2013 Employee Unit Purchase Plan [Member]	Sep. 30, 2012 Employee Unit Purchase Plan [Member]	Jun. 30, 2013 Employee Unit Purchase Plan [Member]	Mar. 31, 2013 Shelf Registration 2010 [Member]	Feb. 28, 2013 Shelf Registration 2010 [Member]	Oct. 14, 2013 2012 At-the-Market Registration [Member]	Sep. 30, 2013 2012 At-the-Market Registration [Member]	Oct. 14, 2013 2012 At-the-Market Registration [Member]	Oct. 15, 2013 2013 At-the-Market Registration [Member]
Registration Statements and Equity Offerings [Line Items]
Maximum common units authorized for issuance														$ 1,000		$ 1,250
Remaining units available for issuance													334.2		334.2	1,250.0
Maximum common units authorized for issuance (in units)				70,000,000				4,000,000		440,879
Remaining units available for issuance (in units)				19,843,969				3,744,326
Net Cash Proceeds from Sale of Common Units [Abstract]
Number of common units issued (in units)				3,649,323	1,905,797		1,331,774	110,831	102,469			9,200,000	339,882	7,284,807	7,624,689
Over-allotment of common units included in offering (in units)												1,200,000
Offering price of common unit (in dollars per share)												$ 54.56
Gross proceeds from the sale of common units															460.4
Net cash proceeds from issuance of common units	1,134.7	658.6		206.0	93.6	25.0	75.0	6.6	5.4			486.6	20.8	435.5	456.3
Senior notes issued under universal shelf registration											$ 2,250
Percentage of Total Units Outstanding (in hundredths)			36.80%