Business Segments, Segment Reporting Information (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Information by business segment [Abstract]
Revenues from third parties	$ 7,309.6	$ 4,989.7
Revenues from related parties	10.8	15.6
Intersegment and intrasegment revenues	0.0	0.0
Total revenues	7,320.4	5,005.3
Equity in income (loss) of unconsolidated affiliates	94.8	101.1
Total segment gross operating margin	1,473.3	1,318.5
Property, plant and equipment, net	33,556.1		$ 33,292.5
Investments in unconsolidated affiliates	2,671.4		2,677.3
Intangible assets, net	3,823.1		3,864.1
Goodwill	5,745.2		5,745.2
Segment assets	45,795.8		45,579.1
NGL Pipelines & Services [Member]
Information by business segment [Abstract]
Total revenues	3,345.8	2,403.8
Equity in income (loss) of unconsolidated affiliates	15.5	15.1
Intangible assets, net	342.9		350.2
Goodwill	2,651.7		2,651.7
Crude Oil Pipelines & Services [Member]
Information by business segment [Abstract]
Total revenues	1,807.2	1,288.6
Equity in income (loss) of unconsolidated affiliates	81.2	90.1
Intangible assets, net	2,255.9		2,279.0
Goodwill	1,841.0		1,841.0
Natural Gas Pipelines & Services [Member]
Information by business segment [Abstract]
Total revenues	761.2	550.0
Equity in income (loss) of unconsolidated affiliates	1.0	1.0
Intangible assets, net	1,046.3		1,054.5
Goodwill	296.3		296.3
Petrochemical & Refined Products Services [Member]
Information by business segment [Abstract]
Total revenues	1,406.2	762.9
Equity in income (loss) of unconsolidated affiliates	(2.9)	(5.1)
Intangible assets, net	178.0		180.4
Goodwill	956.2		956.2
Reportable Business Segments [Member] \| NGL Pipelines & Services [Member]
Information by business segment [Abstract]
Revenues from third parties	3,343.0	2,402.0
Revenues from related parties	2.8	1.8
Intersegment and intrasegment revenues	8,874.8	3,174.8
Total revenues	12,220.6	5,578.6
Equity in income (loss) of unconsolidated affiliates	15.5	15.1
Total segment gross operating margin	856.0	783.7
Property, plant and equipment, net	14,003.1		14,091.5
Investments in unconsolidated affiliates	758.1		750.4
Intangible assets, net	342.9		350.2
Goodwill	2,651.7		2,651.7
Segment assets	17,755.8		17,843.8
Reportable Business Segments [Member] \| Crude Oil Pipelines & Services [Member]
Information by business segment [Abstract]
Revenues from third parties	1,802.6	1,277.5
Revenues from related parties	4.6	11.1
Intersegment and intrasegment revenues	3,474.0	1,499.4
Total revenues	5,281.2	2,788.0
Equity in income (loss) of unconsolidated affiliates	81.2	90.1
Total segment gross operating margin	264.6	202.3
Property, plant and equipment, net	4,346.9		4,216.1
Investments in unconsolidated affiliates	1,828.0		1,824.6
Intangible assets, net	2,255.9		2,279.0
Goodwill	1,841.0		1,841.0
Segment assets	10,271.8		10,160.7
Reportable Business Segments [Member] \| Natural Gas Pipelines & Services [Member]
Information by business segment [Abstract]
Revenues from third parties	757.8	547.3
Revenues from related parties	3.4	2.7
Intersegment and intrasegment revenues	194.5	124.7
Total revenues	955.7	674.7
Equity in income (loss) of unconsolidated affiliates	1.0	1.0
Total segment gross operating margin	170.9	177.7
Property, plant and equipment, net	8,355.6		8,403.0
Investments in unconsolidated affiliates	21.5		21.7
Intangible assets, net	1,046.3		1,054.5
Goodwill	296.3		296.3
Segment assets	9,719.7		9,775.5
Reportable Business Segments [Member] \| Petrochemical & Refined Products Services [Member]
Information by business segment [Abstract]
Revenues from third parties	1,406.2	762.9
Revenues from related parties	0.0	0.0
Intersegment and intrasegment revenues	414.7	242.7
Total revenues	1,820.9	1,005.6
Equity in income (loss) of unconsolidated affiliates	(2.9)	(5.1)
Total segment gross operating margin	181.8	154.8
Property, plant and equipment, net	3,284.7		3,261.2
Investments in unconsolidated affiliates	63.8		80.6
Intangible assets, net	178.0		180.4
Goodwill	956.2		956.2
Segment assets	4,482.7		4,478.4
Eliminations [Member]
Information by business segment [Abstract]
Revenues from third parties	0.0	0.0
Revenues from related parties	0.0	0.0
Intersegment and intrasegment revenues	(12,958.0)	(5,041.6)
Total revenues	(12,958.0)	(5,041.6)
Equity in income (loss) of unconsolidated affiliates	0.0	$ 0.0
Adjustments [Member]
Information by business segment [Abstract]
Property, plant and equipment, net	3,565.8		3,320.7
Investments in unconsolidated affiliates	0.0		0.0
Intangible assets, net	0.0		0.0
Goodwill	0.0		0.0
Segment assets	$ 3,565.8		$ 3,320.7

Amount of revenue from transactions with other operating segments of the same entity.

No definition available.

Name:	epd_IntersegmentAndIntrasegmentRevenues
Namespace Prefix:	epd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of total assets attributed to the reportable segment.

+ References

No definition available.

+ Details

Name:	epd_SegmentAssets
Namespace Prefix:	epd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Revenue from sale of goods and services rendered to third parties during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

No definition available.

+ Details

Name:	epd_ThirdPartyRevenue
Namespace Prefix:	epd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Operating income before: (i) depreciation, amortization and accretion expense; (ii) non-cash consolidated asset impairment charges; (iii) operating lease expenses for which the entity does not have the payment obligation; (iv) gains and losses from asset sales and related transactions and (v) general and administrative costs.

+ References

No definition available.

+ Details

Name:	epd_TotalSegmentGrossOperatingMargin
Namespace Prefix:	epd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975

+ Details

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ 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(12))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(10))
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 4: 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=66022249&loc=d3e33749-111570

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(13)(f))
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

+ Details

Name:	us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

Name:	us-gaap_IntangibleAssetsNetExcludingGoodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Total investments in (A) an entity in which the entity has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method, and (C) an entity in which the reporting entity shares control of the entity with another party or group. Includes long-term advances receivable from a party that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

+ Details

Name:	us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: 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(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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(14))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(8))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

+ Details

Name:	us-gaap_PropertyPlantAndEquipmentNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

+ Details

Name:	us-gaap_RevenueFromRelatedParties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

+ Details

Name:	us-gaap_SalesRevenueNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingInformationProfitLossAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=epd_NglPipelinesAndServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=epd_OnshoreCrudeOilPipelinesAndServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=epd_OnshoreNaturalGasPipelinesAndServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=epd_PetrochemicalAndRefinedProductsServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ConsolidationItemsAxis=us-gaap_MaterialReconcilingItemsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: