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Significant Risks and Uncertainties (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Insurance Matters [Abstract] |  |  |
Minimum insurance deductible per incident | $ 5.0 epd_MinimumInsuranceDeductiblePerIncident |  |
Maximum insurance deductible per incident | 60.0 epd_MaximumInsuranceDeductiblePerIncident |  |
February 2011 West Storage Incident [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Gains related to property damage proceeds | 95.0 epd_GainsRelatedToPropertyDamageProceeds / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_DamageFromFireExplosionOrOtherHazardMember | 15.0 epd_GainsRelatedToPropertyDamageProceeds / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_DamageFromFireExplosionOrOtherHazardMember | 30.0 epd_GainsRelatedToPropertyDamageProceeds / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_DamageFromFireExplosionOrOtherHazardMember
Proceeds from property damage insurance recoveries | $ 95.0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_DamageFromFireExplosionOrOtherHazardMember | $ 15.0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_DamageFromFireExplosionOrOtherHazardMember | $ 30.0 us-gaap_ProceedsFromInsuranceSettlementInvestingActivities / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_DamageFromFireExplosionOrOtherHazardMember
Shell Oil Company [Member] | Revenues [Member] |  |  |
Revenue, Major Customer [Line Items] |  |  |
Largest non-affiliated customer percentage (in hundredths) | 8.50%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesMember / us-gaap_MajorCustomersAxis = epd_ShellOilCompanyMember |  |

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- Definition Represents gains related to property damage insurance proceeds received during the period disclosed. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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- Definition Maximum insurance deductible amount per incident. + References No definition available. + Details
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Namespace Prefix: | epd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Minimum insurance deductible amount per incident. + References No definition available. + Details
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Namespace Prefix: | epd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592 + Details
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- Definition The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to investments, for example fixed assets. It excludes insurance settlements classified as operating cash flows. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 + Details
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- Details
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