XML 54 R45.htm IDEA: XBRL DOCUMENT
v3.5.0.2

RISK MANAGEMENT AND FINANCIAL INSTRUMENTS - EFFECTS OF DERIVATIVE INSTRUMENTS ON STATEMENT OF EARNINGS AND COMPREHENSIVE INCOME (Details) - CAD CAD in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gains/(loss) recognized in OCI | CAD (450) | CAD 364 | CAD (930) | CAD (367)
Amount of (gains)/loss reclassified from AOCI to earnings (effective portion) | 69 | 28 | 17 | 23
Amount of (gains)/loss reclassified from AOCI to earnings (ineffective portion and amount excluded from effectiveness testing) | 5 | (12) | 31 | (30)
Total unrealized derivative fair value gains/(loss) | (77) | 352 | CAD 765 | (1,131)
Rolling time period over which the Company forecasts cash requirements |  |  | 12 months |
Period of anticipated requirements for which the Company maintains sufficient liquidity through committed credit facilities |  |  | 1 year |
Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) | (77) | 352 | CAD 765 | (1,131)
Cash Flow Hedges. |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Estimated amount of AOCI related to cash flow hedges reclassified to earnings in the next 12 months |  |  | CAD 33 |
Period to hedge exposures to the variability of cash flows for all forecasted transactions |  |  | 42 months |
Foreign Exchange Risk | Other income/(expense) |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of (gains)/loss reclassified from AOCI to earnings (effective portion) | (1) | 6 | CAD 2 | 6
Foreign Exchange Risk | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) | 28 | 388 | 1,044 | (905)
Foreign Exchange Risk | Non-Qualifying Derivative Instruments | Transportation and other services revenues |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) |  |  | 564 | (571)
Foreign Exchange Risk | Non-Qualifying Derivative Instruments | Other income/(expense) |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) |  |  | 480 | (334)
Foreign Exchange Risk | Cash Flow Hedges. |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gains/(loss) recognized in OCI | 2 | (15) | (33) | 30
Foreign Exchange Risk | Net Investment Hedges |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gains/(loss) recognized in OCI | (12) | 22 | 72 | (101)
Interest rate contracts | Interest expense. |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of (gains)/loss reclassified from AOCI to earnings (effective portion) | 72 | 23 | 51 | 33
Amount of (gains)/loss reclassified from AOCI to earnings (ineffective portion and amount excluded from effectiveness testing) | 5 | (12) | 31 | (35)
Interest rate contracts | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) | 4 |  | 8 |
Interest rate contracts | Cash Flow Hedges. |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gains/(loss) recognized in OCI | (428) | 392 | (1,004) | (272)
Commodity contracts | Commodity costs |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of (gains)/loss reclassified from AOCI to earnings (effective portion) | 2 | (2) | (6) | (22)
Amount of (gains)/loss reclassified from AOCI to earnings (ineffective portion and amount excluded from effectiveness testing) |  |  |  | 5
Commodity contracts | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) | (114) | (35) | (298) | (227)
Commodity contracts | Non-Qualifying Derivative Instruments | Commodity sales revenue |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) |  |  | (302) | (357)
Commodity contracts | Non-Qualifying Derivative Instruments | Commodity costs |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) |  |  | 6 | 118
Commodity contracts | Non-Qualifying Derivative Instruments | Operating and administrative expense |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) |  |  | (4) | 7
Commodity contracts | Non-Qualifying Derivative Instruments | Transportation and other services revenues |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) |  |  | 2 | 5
Commodity contracts | Cash Flow Hedges. |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gains/(loss) recognized in OCI | (18) | (29) | (2) | (10)
Other contracts | Operating and administrative expense |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of (gains)/loss reclassified from AOCI to earnings (effective portion) | (4) | 1 | (30) | 6
Other contracts | Non-Qualifying Derivative Instruments |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Total unrealized derivative fair value gains/(loss) | 5 | (1) | 11 | 1
Other contracts | Cash Flow Hedges. |  |  |  |
The Effect of Derivative Instruments on the Statements of Earnings and Comprehensive Income |  |  |  |
Amount of unrealized gains/(loss) recognized in OCI | CAD 6 | CAD (6) | CAD 37 | CAD (14)

X
- Definition Represents the period of the entity's anticipated requirements which the entity can fund through committed credit facilities without having to access the capital markets. + References No definition available. + Details
Name: | enb_PeriodOfAnticipatedRequirementsCoveredByCommittedCreditFacilities
Namespace Prefix: | enb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the rolling time period over which the entity forecasts cash requirements to determine whether sufficient funds will be available. + References No definition available. + Details
Name: | enb_RollingTimePeriodForCashForecasting
Namespace Prefix: | enb_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
Name: | us-gaap_CashFlowHedgeGainLossToBeReclassifiedWithinTwelveMonths
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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_DerivativeInstrumentsGainLossLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624177-113959 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments representing (a) the amount of the hedge ineffectiveness and (b) the amount, if any, excluded from the assessment of hedge effectiveness. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1),(2) -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossRecognizedInIncomeIneffectivePortionAndAmountExcludedFromEffectivenessTestingNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959 + Details
Name: | us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
Name: | us-gaap_MaximumLengthOfTimeHedgedInCashFlowHedge1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_UnrealizedGainLossOnDerivatives
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
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_IncomeStatementLocationAxis=enb_OtherIncomeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=enb_TransportationAndOtherServicesRevenuesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_NetInvestmentHedgingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=us-gaap_InterestExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=enb_CommodityCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=enb_CommoditySalesRevenueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=enb_OperatingAndAdministrativeExpenseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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