XML 125 R96.htm IDEA: XBRL DOCUMENT
v3.3.1.900

RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - MARKET RISK (Details) CAD in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 CAD item | Dec. 31, 2014 CAD
Fair Value Hedges |  |
Fair value hedges | CAD | CAD 0 | CAD 0
Maximum |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |
Floating rate debt as a percentage of total debt outstanding | 25.00% |
Foreign Exchange Risk |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |
Period to hedge a minimum level of foreign currency denominated earnings exposures | 5 years |
Interest rate contracts - short-term borrowings |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |
Average swap rate (as a percent) | 2.00% |
Interest rate contracts - long-term debt |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |
Average swap rate (as a percent) | 3.40% |
Equity contracts |  |
RISK MANAGEMENT AND FINANCIAL INSTRUMENTS |  |
Number of forms of stock-based compensation with equity price risk | item | 1 |

X
- Definition Represents the floating rate debt as a target percentage of the total debt outstanding. + References No definition available. + Details
Name: | enb_FloatingRateDebtAsTargetPercentageOfTotalDebtOutstanding
Namespace Prefix: | enb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Future period of time over which foreign currency denominated earnings exposures may be economically hedged. + References No definition available. + Details
Name: | enb_FuturePeriodForeignCurrencyDenominatedEarningsHedging
Namespace Prefix: | enb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents number of forms of stock-based compensation with equity price risk managed via equity derivatives. + References No definition available. + Details
Name: | enb_NumberOfTypesOfEquityWithPriceRiskManagedViaEquityDerivatives
Namespace Prefix: | enb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Average variable interest rate related to the group of interest rate derivatives. + References No definition available. + Details
Name: | us-gaap_DerivativeAverageVariableInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Net fair value of all derivative instruments designated as fair value hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958 + Details
Name: | us-gaap_FairValueHedgesAtFairValueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=enb_InterestRateContractForShortTermBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=enb_InterestRateContractForLongTermBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EquityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |