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Business Segments (Details) | 12 Months Ended
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Dec. 31, 2018 Segment Fractionator mi
Segment Reporting Information [Line Items] |
Number of reportable segments | Segment | 4
Number of miles of pipelines | 49,200
NGL Pipelines and Services [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 19,200
Number of fractionators | Fractionator | 16
Crude Oil Pipelines & Services [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 5,300
Natural Gas Pipelines & Services [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 19,700
Petrochemical and Refined Products Services [Member] | Propylene Operations [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 800
Petrochemical and Refined Products Services [Member] | Refined Products Operations [Member] |
Segment Reporting Information [Line Items] |
Number of miles of pipelines | 4,100

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

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

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- 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
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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- Details
Name: | us-gaap_SubsegmentsAxis=epd_PropyleneBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_SubsegmentsAxis=epd_RefinedProductsBusinessMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |