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Derivative Instruments, Hedging Activities and Fair Value Measurements, Other Fair Value Measurements (Details) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017
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Carrying Value [Member] |  |
Financial Liabilities: [Abstract] |  |
Fixed Rate Debt Principal Amount Fair Value Disclosure | $ 23,500 | $ 21,480
Level 2 [Member] | Fair Value [Member] |  |
Financial Liabilities: [Abstract] |  |
Fixed Rate Debt Principal Amount Fair Value Disclosure | $ 24,730 | $ 23,470

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- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. This item represents the fair value of the principal balance of our fixed rate debt as of the balance sheet date. + References No definition available. + Details
Name: | epd_FixedRateDebtPrincipalAmountFairValueDisclosure
Namespace Prefix: | epd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_FairValueByMeasurementBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |