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Equity-based Awards (Details) (USD $) In Millions, except Share data, unless otherwise specified | 3 Months Ended
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Mar. 31, 2015 | Mar. 31, 2014
Equity-based compensation expense [Abstract] |  |
Total compensation expense | $ 23.4 us-gaap_AllocatedShareBasedCompensationExpense | $ 17.5 us-gaap_AllocatedShareBasedCompensationExpense
Equity-classified awards [Member] | Restricted Common Unit Awards [Member] |  |
Equity-based compensation expense [Abstract] |  |
Total compensation expense | 6.1 us-gaap_AllocatedShareBasedCompensationExpense / epd_AwardClassificationAxis = epd_EquityClassifiedAwardsMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember | 11.6 us-gaap_AllocatedShareBasedCompensationExpense / epd_AwardClassificationAxis = epd_EquityClassifiedAwardsMember / us-gaap_AwardTypeAxis = us-gaap_RestrictedStockUnitsRSUMember
Equity-classified awards [Member] | Phantom Unit Awards [Member] |  |
Equity-based compensation expense [Abstract] |  |
Total compensation expense | 17.2 us-gaap_AllocatedShareBasedCompensationExpense / epd_AwardClassificationAxis = epd_EquityClassifiedAwardsMember / us-gaap_AwardTypeAxis = us-gaap_PhantomShareUnitsPSUsMember | 5.8 us-gaap_AllocatedShareBasedCompensationExpense / epd_AwardClassificationAxis = epd_EquityClassifiedAwardsMember / us-gaap_AwardTypeAxis = us-gaap_PhantomShareUnitsPSUsMember
Liability-classified awards [Member] |  |
Equity-based compensation expense [Abstract] |  |
Total compensation expense | $ 0.1 us-gaap_AllocatedShareBasedCompensationExpense / epd_AwardClassificationAxis = epd_LiabilityClassifiedAwardsMember | $ 0.1 us-gaap_AllocatedShareBasedCompensationExpense / epd_AwardClassificationAxis = epd_LiabilityClassifiedAwardsMember
Long-Term Incentive Plan (2008) [Member] |  |
Equity-based compensation expense [Abstract] |  |
Maximum number of common units that may be issued as awards (in units) | 30,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = epd_LongTermIncentivePlan2008Member |
Incremental number of units to be authorized annually (in units) | 5,000,000 epd_IncrementalNumberOfUnitsToBeAuthorized / us-gaap_PlanNameAxis = epd_LongTermIncentivePlan2008Member |
Maximum number of additional units to be authorized for issuance (in units) | 70,000,000 epd_MaximumNumberOfAdditionalUnitsToBeAuthorizedForIssuance / us-gaap_PlanNameAxis = epd_LongTermIncentivePlan2008Member |
Remaining number of common units available to be issued as awards (in units) | 15,902,141 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = epd_LongTermIncentivePlan2008Member |
Long Term Incentive Plan (1998) [Member] |  |
Equity-based compensation expense [Abstract] |  |
Maximum number of common units that may be issued as awards (in units) | 14,000,000 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_PlanNameAxis = epd_LongTermIncentivePlan1998Member |
Remaining number of common units available to be issued as awards (in units) | 2,990,928 us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_PlanNameAxis = epd_LongTermIncentivePlan1998Member |

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- Definition The number of common units for issuance under the plan will automatically increase under the terms of the plan by per year, beginning on January 1, 2014 and subsequently on each January 1 thereafter during the term of the plan before reaching a maximum amount. + References No definition available. + Details
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Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Maximum number of additional units to be authorized for issuance due to the amendment of the long-term incentive plan. + References No definition available. + Details
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Namespace Prefix: | epd_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.F) -URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section F + Details
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- Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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Balance Type: | na
Period Type: | instant

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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Details
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- Details
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- Details
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- Details
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Period Type: |