Expense (benefit) associated with the change in fair value of the Liquidity Option Agreement.

No definition available.

Name:	epd_ExpenseOfLiquidityOptionAgreement
Namespace Prefix:	epd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The expected business terms (in years), used as an input to measure fair value.

+ References

No definition available.

+ Details

Name:	epd_FairValueInputsExpectedBusinessTerm
Namespace Prefix:	epd_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The expected life of debt assumed in connection with the exercised of the Liquidity Option.

+ References

No definition available.

+ Details

Name:	epd_FairValueInputsLifeOfDebtAssumedAfterLiquidityOptionIsExercised
Namespace Prefix:	epd_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration

- Definition

The expected ownership interests in company (in hundredths), used as an input to measure fair value.

+ References

No definition available.

+ Details

Name:	epd_FairValueInputsOwnershipInterestInCompany
Namespace Prefix:	epd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The expected partnership growth rate (in hundredths), used as an input to measure fair value.

+ References

No definition available.

+ Details

Name:	epd_FairValueInputsPartnershipGrowthRate
Namespace Prefix:	epd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The weighted-average expected ownership percentage of contributed units at beginning of option period (in hundredths), used as an input to measure fair value.

+ References

No definition available.

+ Details

Name:	epd_FairValueInputsWeightedAverageExpectedOwnershipPercentageOfContributedUnitsAtBeginningOfOptionPeriod
Namespace Prefix:	epd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Increase in fair value of liquidity option agreement in valuation model if all units are retained.

+ References

No definition available.

+ Details

Name:	epd_IncreaseInFairValueOfLiquidityOptionAgreementAssumingRetentionOfAllUnits
Namespace Prefix:	epd_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	epd_LiquidityOptionAgreementAbstract
Namespace Prefix:	epd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of days commencing February 1, 2020 that M&B can exercise the liquidity option agreement.

+ References

No definition available.

+ Details

Name:	epd_LiquidityOptionExercisePeriod
Namespace Prefix:	epd_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of Enterprise Common Units Held at Exercise Date by OTA.

+ References

No definition available.

+ Details

Name:	epd_NumberOfUnitsHeldByLimitedPartnerInMillionsOfUnits
Namespace Prefix:	epd_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage of OTA capital stock we agreed to purchase from M&B under liquidity option agreement.

+ References

No definition available.

+ Details

Name:	epd_PercentageOfCapitalStockAgreedToPurchaseUnderLiquidityOptionAgreement
Namespace Prefix:	epd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of fair market value of Enterprise units to be paid as consideration upon exercise of the liquidity option.

+ References

No definition available.

+ Details

Name:	epd_PercentageOfFairMarketValueOfEnterpriseUnitsToBePaidAsConsideration
Namespace Prefix:	epd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of days following a Trigger Event that M&B has to exercise liquidity option. Trigger Events include, among other scenarios, any Enterprise Tax Event (as defined in the underlying agreements)

+ References

No definition available.

+ Details

Name:	epd_TriggerEventExercisePeriod
Namespace Prefix:	epd_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

+ Details

Name:	us-gaap_DerivativeLiabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Value of input used to measure derivative liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258

+ Details

Name:	us-gaap_DerivativeLiabilityMeasurementInput
Namespace Prefix:	us-gaap_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_FairValueByLiabilityClassAxis=epd_LiabilityLiquidityOptionAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=epd_MeasurementInputAggregateTaxRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_MeasurementInputTypeAxis=us-gaap_MeasurementInputDiscountRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies, Liquidity Option Agreement (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Liquidity Option Agreement [Abstract]
Change in fair value of Liquidity Option Agreement	$ 56.1	$ 64.3	$ 24.5
Percentage of capital stock agreed to purchase under liquidity option agreement	100.00%
Liquidity Option exercise period	90 days
Percentage of fair market value of Enterprise units to be paid as consideration	100.00%
Trigger Event exercise period	135 days
Number of units held by limited partner (in units) \| shares	54,807,352
Liquidity Option Agreement [Member]
Liquidity Option Agreement [Abstract]
Increase in fair value of liquidity option agreement assuming retention of all units	$ 23.1
Level 3 [Member]
Liquidity Option Agreement [Abstract]
Derivative Liability	$ 390.0	$ 333.9
Level 3 [Member] \| Liquidity Option Agreement [Member]
Liquidity Option Agreement [Abstract]
Fair value inputs, Life of debt assumed after Liquidity option is exercised	30 years
Fair value inputs, weighted-average expected ownership percentage of contributed units at beginning of option period	94.00%
Level 3 [Member] \| Liquidity Option Agreement [Member] \| Minimum [Member]
Liquidity Option Agreement [Abstract]
Fair value inputs, Expected life of OTA following option exercise	1 year
Fair value inputs, Estimated growth rates in Enterprise earnings before interest, taxes, depreciation and amortization	1.90%
Fair value inputs, OTA ownership interest in Enterprise common units	2.30%
Level 3 [Member] \| Liquidity Option Agreement [Member] \| Maximum [Member]
Liquidity Option Agreement [Abstract]
Fair value inputs, Expected life of OTA following option exercise	30 years
Fair value inputs, Estimated growth rates in Enterprise earnings before interest, taxes, depreciation and amortization	5.60%
Fair value inputs, OTA ownership interest in Enterprise common units	2.50%
Level 3 [Member] \| Liquidity Option Agreement [Member] \| Measurement Input, Aggregate Tax Rate [Member]
Liquidity Option Agreement [Abstract]
Derivative Liability, Measurement Input	0.24
Level 3 [Member] \| Liquidity Option Agreement [Member] \| Measurement Input, Discount Rate [Member]
Liquidity Option Agreement [Abstract]
Derivative Liability, Measurement Input	0.079