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Derivative Instruments, Hedging Activities and Fair Value Measurements, Level 3 Recurring Valuation Techniques (Details) (Level 3 [Member], USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015
Asset commodity derivatives - Crude oil [Member] | Liability commodity derivatives - Crude oil [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Fair Value Measurements, Valuation Techniques | Discounted cash flow
Input description | Forward commodity prices
Asset commodity derivatives - Crude oil [Member] | Liability commodity derivatives - Crude oil [Member] | Minimum [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Fair value inputs, forward commodity price (in dollars per unit) | 47.63 epd_FairValueInputsForwardCommodityPrice / us-gaap_FairValueByAssetClassAxis = epd_AssetCommodityDerivativesCrudeOilMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByLiabilityClassAxis = epd_LiabilityCommodityDerivativesCrudeOilMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Asset commodity derivatives - Crude oil [Member] | Liability commodity derivatives - Crude oil [Member] | Maximum [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Fair value inputs, forward commodity price (in dollars per unit) | 57.73 epd_FairValueInputsForwardCommodityPrice / us-gaap_FairValueByAssetClassAxis = epd_AssetCommodityDerivativesCrudeOilMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByLiabilityClassAxis = epd_LiabilityCommodityDerivativesCrudeOilMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Asset commodity derivatives - Natural gasoline [Member] | Liability commodity derivatives - Natural gasoline [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Fair Value Measurements, Valuation Techniques | Discounted cash flow
Input description | Forward commodity prices
Asset commodity derivatives - Natural gasoline [Member] | Liability commodity derivatives - Natural gasoline [Member] | Minimum [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Fair value inputs, forward commodity price (in dollars per unit) | 1.12 epd_FairValueInputsForwardCommodityPrice / us-gaap_FairValueByAssetClassAxis = epd_AssetCommodityDerivativesNaturalGasolineMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByLiabilityClassAxis = epd_LiabilityCommodityDerivativesNaturalGasolineMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Asset commodity derivatives - Natural gasoline [Member] | Liability commodity derivatives - Natural gasoline [Member] | Maximum [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Fair value inputs, forward commodity price (in dollars per unit) | 1.13 epd_FairValueInputsForwardCommodityPrice / us-gaap_FairValueByAssetClassAxis = epd_AssetCommodityDerivativesNaturalGasolineMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByLiabilityClassAxis = epd_LiabilityCommodityDerivativesNaturalGasolineMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Fair Value, Measurements, Recurring [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Commodity asset derivatives | 0.4 us-gaap_PriceRiskDerivativeAssetsAtFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsRecurringMember
Commodity liability derivatives | 2.3 us-gaap_PriceRiskDerivativeLiabilitiesAtFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Measurements, Recurring [Member] | Liability commodity derivatives - Crude oil [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Commodity liability derivatives | 0.8 us-gaap_PriceRiskDerivativeLiabilitiesAtFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByLiabilityClassAxis = epd_LiabilityCommodityDerivativesCrudeOilMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Measurements, Recurring [Member] | Liability commodity derivatives - Natural gasoline [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Commodity liability derivatives | 1.5 us-gaap_PriceRiskDerivativeLiabilitiesAtFairValue / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByLiabilityClassAxis = epd_LiabilityCommodityDerivativesNaturalGasolineMember / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Measurements, Recurring [Member] | Asset commodity derivatives - Crude oil [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Commodity asset derivatives | 0.4 us-gaap_PriceRiskDerivativeAssetsAtFairValue / us-gaap_FairValueByAssetClassAxis = epd_AssetCommodityDerivativesCrudeOilMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsRecurringMember
Fair Value, Measurements, Recurring [Member] | Asset commodity derivatives - Natural gasoline [Member] |
Fair Value Measurements, Recurring, Valuation Techniques [Line Items] |
Commodity asset derivatives | 0 us-gaap_PriceRiskDerivativeAssetsAtFairValue / us-gaap_FairValueByAssetClassAxis = epd_AssetCommodityDerivativesNaturalGasolineMember / us-gaap_FairValueByFairValueHierarchyLevelAxis = us-gaap_FairValueInputsLevel3Member / us-gaap_FairValueByMeasurementFrequencyAxis = us-gaap_FairValueMeasurementsRecurringMember

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- Definition The forward commodity price (in dollars per unit of measure), used as an input to measure fair value. + References No definition available. + Details
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- Definition The input used for the valuation of unobservable input. + References No definition available. + Details
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- Details
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- Definition Description of the inputs and valuation technique(s) used to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Fair value as of the balance sheet date of price risk derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets on the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 + Details
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- Definition Fair value as of the balance sheet date of price risk derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities on the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 + Details
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- Details
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- Details
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- Details
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