XML 52 R45.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Derivative Instruments, Hedging Activities and Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended | 3 Months Ended | 1 Months Ended | 3 Months Ended | 1 Months Ended
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2013 Senior Notes AA [Member] | Mar. 31, 2013 Undesignated Swaps [Member] | Dec. 31, 2012 Future Debt Offering Tranche Three [Member] | Mar. 31, 2013 Octane enhancement: Forecasted purchases of NGLs [Member] MMBbls | Mar. 31, 2013 Octane enhancement: Forecasted sales of octane enhancement products [Member] MMBbls | Mar. 31, 2013 Natural gas marketing: Forecasted sales of natural gas [Member] ft3 | Mar. 31, 2013 Natural gas marketing: Natural gas storage inventory management activities [Member] ft3 | Mar. 31, 2013 NGL marketing: Forecasted purchases of NGLs and related hydrocarbon products [Member] MMBbls | Mar. 31, 2013 NGL marketing: Forecasted sales of NGLs and related hydrocarbon products [Member] MMBbls | Mar. 31, 2013 Refined products marketing: Refined products inventory management activities [Member] MMBbls | Mar. 31, 2013 Crude oil marketing: Forecasted purchases of crude oil [Member] MMBbls | Mar. 31, 2013 Crude oil marketing: Forecasted sales of crude oil [Member] MMBbls | Mar. 31, 2013 Natural gas risk management activities [Member] ft3 | Mar. 31, 2013 Refined products risk management activities [Member] MMBbls | Mar. 31, 2013 Crude oil risk management activities [Member] MMBbls | Feb. 29, 2012 Derivatives in cash flow hedging relationships [Member] Forward Starting Swaps [Member] | Mar. 31, 2013 Derivatives in cash flow hedging relationships [Member] Forward Starting Swaps [Member] | Feb. 29, 2012 Derivatives in fair value hedging relationships [Member] Interest Rate Swap [Member]
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Derivatives Outstanding | 10 | 6 | 16 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Type of Derivatives Outstanding | fixed-to-floating swaps | floating-to-fixed swaps | forward starting interest rate swaps |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional Amount | $ 750.0 | $ 600.0 | $ 1,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Period of Hedge | 1/2011 to 2/2016 | 5/2010 to 7/2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate Swap, fixed rate (in hundredths) | 3.20% | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rate Swap, floating rate (in hundredths) | 1.30% | 0.30% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current Volume |  |  |  | 1.5 | [1],[2] | 3.2 | [1],[2] | 100,000,000.0 | [1],[2] | 1,900,000,000.0 | [1],[2] | 3.4 | [1],[2] | 6.5 | [1],[2] | 0.1 | [1],[2] | 3.9 | [1],[2] | 8.8 | [1],[2] | 162,700,000,000.0 | [1],[2],[3],[4] | 0.5 | [1],[2],[3] | 3.7 | [1],[2],[3] |  |  |
Long Term Volume |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25,900,000,000 | [1],[2],[3],[4] |  |  |  |  |  |  |
Accounting Treatment | Fair value hedge | Mark-to-market |  | Cash flow hedge |  | Cash flow hedge |  | Cash flow hedge |  | Fair value hedge |  | Cash flow hedge |  | Cash flow hedge |  | Fair value hedge |  | Cash flow hedge |  | Cash flow hedge |  | Mark-to-market | [3],[4] | Mark-to-market | [3] | Mark-to-market | [3] |  |  |
Number of derivative instruments settled |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 | 16 | 11
Notional amount of settled derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500 | 1,000 | 800
Loss (gain) recognized due to settlement of derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (37.7)
Accumulated other comprehensive income (loss) related to interest rate derivative instruments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (115.3) | $ (168.8) |
Current natural gas hedging volumes designated as an index plus or minus a discount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 89,500,000,000 |  |  |  |  |  |  |  |
[1] | The maximum term for derivatives designated as cash flow hedges, derivatives designated as fair value hedges and derivatives not designated as hedging instruments is March 2014, March 2014 and October 2015, respectively.
[2] | Volume for derivatives designated as hedging instruments reflects the total amount of volumes hedged whereas volume for derivatives not designated as hedging instruments reflects the absolute value of derivative notional volumes.
[3] | Reflects the use of derivative instruments to manage risks associated with transportation, processing and storage assets.
[4] | Current volumes include 89.5 Bcf of physical derivative instruments that are predominantly priced at a market-based index plus a premium or minus a discount related to location differences.

X
- Definition The volumes expected to be settled within one year after the date indicated in accordance with derivative instruments. + References No definition available. + Details
Name: | epd_CurrentVolume
Namespace Prefix: | epd_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition The period of hedges of the derivative instruments employed related to the noted item. + References No definition available. + Details
Name: | epd_DerivativeInstrumentsPeriodOfHedges
Namespace Prefix: | epd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The derivative instruments entered into in connection with natural gas risk management activities by the entity. Represents the short term contracts that are priced as an index plus a premium or minus a discount. + References No definition available. + Details
Name: | epd_EntitiesShortTermNaturalGasRiskManagementDerivativesDesignatedAsHedgingActivitiesPricedBasedOnIndex
Namespace Prefix: | epd_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of unrealized gain (loss) related to the increase (decrease) in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective. + References No definition available. + Details
Name: | epd_InterestRateCashFlowHedgesAccumulatedOtherComprehensiveIncome
Namespace Prefix: | epd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The volumes expected to be settled at least one year after the date indicated in accordance with derivative instruments. + References No definition available. + Details
Name: | epd_LongTermVolume
Namespace Prefix: | epd_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition The notional value of derivative instruments terminated during the period. + References No definition available. + Details
Name: | epd_NotionalAmountOfTerminatedDerivativeInstruments
Namespace Prefix: | epd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of derivative instruments settled. + References No definition available. + Details
Name: | epd_NumberOfDerivativeInstrumentsSettled
Namespace Prefix: | epd_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount as of the balance sheet date of the unamortized adjustment to the carrying value of an interest-bearing hedged item made under an effective fair value hedge that is amortized upon discontinuation of the fair value hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 35 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6439857&loc=d3e75592-113984 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DeferredGainLossOnDiscontinuationOfFairValueHedge
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fixed interest rate related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The hedge designation, if any, elected for the derivative. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7476318&loc=d3e41620-113959 + Details
Name: | us-gaap_DerivativeHedgeDesignation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The number of derivative instruments of a particular group held by the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5580258-113959 + Details
Name: | us-gaap_DerivativeNumberOfInstrumentsHeld
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Variable interest rate in effect as of the balance sheet date related to the interest rate derivative. + References No definition available. + Details
Name: | us-gaap_DerivativeVariableInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Description of the types of interest rate derivative instruments used. For example, swaps, caps, floors, collars, and so forth. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(n)(2)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 + Details
Name: | us-gaap_TypesOfInterestRateDerivativesUsed
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration