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Business Segments (Details) | 12 Months Ended
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Dec. 31, 2014 Segment Platform Fractionator mi
Segment Reporting Information [Line Items] |
Number of reportable segments | 5 us-gaap_NumberOfReportableSegments
Number of miles of pipelines | 51,300 epd_NumberOfMilesOfOnshoreAndOffshorePipelines
Number of fractionators | 22 epd_NumberOfFractionators
Number of offshore hub platforms | 6 epd_NumberOfOffshoreHubPlatforms
NGL Pipelines and Services [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 19,300 epd_NumberOfMilesOfOnshoreAndOffshorePipelines / us-gaap_StatementBusinessSegmentsAxis = epd_NglPipelinesAndServicesMember
Number of fractionators | 15 epd_NumberOfFractionators / us-gaap_StatementBusinessSegmentsAxis = epd_NglPipelinesAndServicesMember
Onshore Natural Gas Pipelines and Services [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 19,300 epd_NumberOfMilesOfOnshoreAndOffshorePipelines / us-gaap_StatementBusinessSegmentsAxis = epd_OnshoreNaturalGasPipelinesAndServicesMember
Onshore Crude Oil Pipelines and Services [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 5,400 epd_NumberOfMilesOfOnshoreAndOffshorePipelines / us-gaap_StatementBusinessSegmentsAxis = epd_OnshoreCrudeOilPipelinesAndServicesMember
Number of tractor-trailors | 560 epd_NumberOfTractorTrailors / us-gaap_StatementBusinessSegmentsAxis = epd_OnshoreCrudeOilPipelinesAndServicesMember
Offshore Pipelines And Services [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 2,350 epd_NumberOfMilesOfOnshoreAndOffshorePipelines / us-gaap_StatementBusinessSegmentsAxis = epd_OffshorePipelinesAndServicesMember
Number of offshore hub platforms | 6 epd_NumberOfOffshoreHubPlatforms / us-gaap_StatementBusinessSegmentsAxis = epd_OffshorePipelinesAndServicesMember
Petrochemical and Refined Products Services [Member] | Propylene Operations [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 680 epd_NumberOfMilesOfOnshoreAndOffshorePipelines / us-gaap_StatementBusinessSegmentsAxis = epd_PetrochemicalAndRefinedProductsServicesMember / us-gaap_SubsegmentsAxis = epd_PropyleneBusinessMember
Petrochemical and Refined Products Services [Member] | Refined Products Operations [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 4,200 epd_NumberOfMilesOfOnshoreAndOffshorePipelines / us-gaap_StatementBusinessSegmentsAxis = epd_PetrochemicalAndRefinedProductsServicesMember / us-gaap_SubsegmentsAxis = epd_RefinedProductsBusinessMember

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- Definition Refers to number of fractionators. + References No definition available. + Details
Name: | epd_NumberOfFractionators
Namespace Prefix: | epd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Refers to number of miles of onshore and offshore pipelines as a part of assets of the entity. + References No definition available. + Details
Name: | epd_NumberOfMilesOfOnshoreAndOffshorePipelines
Namespace Prefix: | epd_
Data Type: | num:lengthItemType
Balance Type: | na
Period Type: | instant

X
- Definition Refers to number of offshore hub platforms. + References No definition available. + Details
Name: | epd_NumberOfOffshoreHubPlatforms
Namespace Prefix: | epd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of tractor-trailors. + References No definition available. + Details
Name: | epd_NumberOfTractorTrailors
Namespace Prefix: | epd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=epd_OffshorePipelinesAndServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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