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Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 bbl Btu | Dec. 31, 2013 | Dec. 31, 2012
Redelivery commitments [Abstract] |  |  |
Redelivery commitments of natural gas (in Btus) | 9,200,000,000,000 epd_NaturalGasToBeRedelivered |  |
Redelivery commitments of crude oil (in MMBbls) | 9,300,000 epd_CrudeOilToBeRedelivered |  |
Redelivery commitments of NGL and petrochemical products (in MMBbls) | 28,300,000 epd_ProductsToBeRedelivered |  |
Operating lease obligations [Abstract] |  |  |
Minimum term of material lease agreements (in years) | 5 years |  |
Maximum term of material lease agreements (in years) | 30 years |  |
Renewal option years for certain leases (in years) | 20 years |  |
Lease and rental expense included in costs and expenses | $ 94.2 us-gaap_LeaseAndRentalExpense | $ 87.6 us-gaap_LeaseAndRentalExpense | $ 95.1 us-gaap_LeaseAndRentalExpense
Liabilities, Other than Long-term Debt, Noncurrent [Abstract] |  |  |
Noncurrent portion of asset retirement obligations | 83.2 us-gaap_AssetRetirementObligationsNoncurrent | 82.5 us-gaap_AssetRetirementObligationsNoncurrent |
Deferred revenues - non-current portion | 73.0 us-gaap_DeferredRevenueNoncurrent | 54.6 us-gaap_DeferredRevenueNoncurrent |
Liquidity Option Agreement | 119.4 epd_OptionAgreementFairValueDisclosure | 0 epd_OptionAgreementFairValueDisclosure |
Centennial guarantees | 7.0 epd_GuaranteeObligationNoncurrent | 7.8 epd_GuaranteeObligationNoncurrent |
Other | 28.2 epd_OtherLiabilitiesNoncurrentOther | 27.4 epd_OtherLiabilitiesNoncurrentOther |
Total | 310.8 us-gaap_OtherLiabilitiesNoncurrent | 172.3 us-gaap_OtherLiabilitiesNoncurrent |
Centennial debt guarantee [Member] |  |  |
Guarantor Obligations [Line Items] |  |  |
Percentage of debt obligations guaranteed (in hundredths) | 50.00%epd_UnconsolidatedAffilatedDebtGuaranteedPercentage / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_GuaranteeOfIndebtednessOfOthersMember |  |
Guarantee of debt obligations | 37.9 us-gaap_GuaranteeObligationsMaximumExposure / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_GuaranteeOfIndebtednessOfOthersMember |  |
Fair value of debt guarantee | 5.4 us-gaap_GuaranteeObligationsCurrentCarryingValue / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_GuaranteeOfIndebtednessOfOthersMember |  |
Centennial cash call guarantee [Member] |  |  |
Guarantor Obligations [Line Items] |  |  |
Cash call guarantee | 50.0 epd_CashCallGuarantee / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_GuaranteeTypeOtherMember |  |
Fair value of cash call guarantee | 2.4 epd_CashCallGuaranteeLiability / us-gaap_GuaranteeObligationsByNatureAxis = us-gaap_GuaranteeTypeOtherMember |  |
Junior Subordinated Note [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt obligations | 1,530.0 us-gaap_LongTermDebt / us-gaap_LongtermDebtTypeAxis = us-gaap_SubordinatedDebtObligationsMember |  |
Centennial Pipeline LLC [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Debt obligations | 75.8 us-gaap_LongTermDebt / us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis = epd_CentennialPipelineLlcMember |  |
Litigation matters [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Litigation accruals on an undiscounted basis | 2.4 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_PendingLitigationMember | 3.7 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_PendingLitigationMember |
Litigation matters [Member] | ETP Lawsuit [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Loss contingency, damages awarded | 319.4 us-gaap_LossContingencyDamagesAwardedValue / us-gaap_LitigationCaseAxis = epd_EtpLawsuitMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_PendingLitigationMember |  |
Loss contingency, total damages sought | 535.8 us-gaap_LossContingencyDamagesSoughtValue / us-gaap_LitigationCaseAxis = epd_EtpLawsuitMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_PendingLitigationMember |  |
Loss contingency, disgorgement damages sought | 150.0 epd_LossContingencyDisgorgementDamagesSoughtValue / us-gaap_LitigationCaseAxis = epd_EtpLawsuitMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_PendingLitigationMember |  |
Prejudgment interest | $ 66.4 epd_PrejudgmentInterest / us-gaap_LitigationCaseAxis = epd_EtpLawsuitMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_PendingLitigationMember |  |
Post-judgment interest rate (in hundredths) | 5.00%epd_PostJudgmentInterestRate / us-gaap_LitigationCaseAxis = epd_EtpLawsuitMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_PendingLitigationMember |  |

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- Definition Barrels of crude oil to be redelivered to their owners under various agreements. + References No definition available. + Details
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- Definition Natural gas to be redelivered to their owners under various agreements. + References No definition available. + Details
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- Definition Aggregate carrying amount, as of the balance sheet date, of other noncurrent obligations. Other noncurrent liabilities are expected to be paid after one year (or the normal operating cycle, if longer). + References No definition available. + Details
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- Definition Barrels of NGL and Petrochemical products to be redelivered to their owners under various agreements. + References No definition available. + Details
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- Definition Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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- Definition The noncurrent portion of deferred revenue amount as of balance sheet date. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized, and is not expected to be recognized in the next twelve months. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6935-107765 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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