XML 100 R90.htm IDEA: XBRL DOCUMENT
v2.4.0.6

DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES (Details 3) In Millions, unless otherwise specified | Dec. 31, 2012 Foreign exchange contracts - United States or Euro dollar forwards - purchase USD ($) | Dec. 31, 2012 Foreign exchange contracts - United States or Euro dollar forwards - purchase EUR (€) | Dec. 31, 2011 Foreign exchange contracts - United States or Euro dollar forwards - purchase USD ($) | Dec. 31, 2012 Foreign exchange contracts - United States dollar forwards - sell USD ($) | Dec. 31, 2011 Foreign exchange contracts - United States dollar forwards - sell USD ($) | Dec. 31, 2012 Interest rate contracts - short-term borrowings CAD | Dec. 31, 2011 Interest rate contracts - short-term borrowings CAD | Dec. 31, 2012 Interest rate contracts - long-term debt CAD | Dec. 31, 2011 Interest rate contracts - long-term debt CAD | Dec. 31, 2012 Equity contracts CAD | Dec. 31, 2011 Equity contracts CAD | Dec. 31, 2012 Commodity contracts Natural gas MMcf | Dec. 31, 2011 Commodity contracts Natural gas MMcf | Dec. 31, 2012 Commodity contracts Crude oil MMBbls | Dec. 31, 2011 Commodity contracts Crude oil MMBbls | Dec. 31, 2012 Commodity contracts NGL MMBbls | Dec. 31, 2011 Commodity contracts NGL MMBbls | Dec. 31, 2012 Commodity contracts Power MWh | Dec. 31, 2011 Commodity contracts Power MWh
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
DERIVATIVE FINANCIAL INSTRUMENTS AND HEDGING ACTIVITIES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2013 / 2012 | $ 558 | € 6 | $ 58 | $ 2,088 | $ 2,017 | 3,644 | 3,227 | 4,590 | 2,650 | 39 | 36 |  |  |  |  |  |  |  |
2014 / 2013 | 468 |  | 287 | 2,402 | 1,865 | 3,591 | 3,237 | 3,055 | 2,000 | 36 | 26 |  |  |  |  |  |  |  |
2015 / 2014 | 25 |  | 468 | 2,751 | 2,182 | 3,455 | 2,787 | 1,760 | 1,650 |  |  |  |  |  |  |  |  |  |
2016 / 2015 | 25 |  | 25 | 2,323 | 2,583 | 3,157 | 2,641 | 1,142 | 750 |  |  |  |  |  |  |  |  |  |
2017 / 2016 | 413 |  | 25 | 2,557 | 2,039 | 2,841 | 2,428 |  |  |  |  |  |  |  |  |  |  |  |
Thereafter | $ 6 |  | $ 418 | $ 158 | $ 180 | 171 | 215 |  |  |  |  |  |  |  |  |  |  |  |
2013 / 2012 |  |  |  |  |  |  |  |  |  |  |  | 55,000 | 20,000 | 37 | 11 | 1 | 4 |  |
2013 / 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51 | 40
2014 / 2013 |  |  |  |  |  |  |  |  |  |  |  | 19,000 | 59,000 | 38 | 26 | 2 | 1 |  |
2014 / 2013 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 67 | 28
2015 / 2014 |  |  |  |  |  |  |  |  |  |  |  | 10,000 | 1,000 | 29 | 17 |  |  |  |
2015 / 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 48 | 40
2016 / 2015 |  |  |  |  |  |  |  |  |  |  |  | 10,000 | 1,000 | 23 | 8 |  |  |  |
2016 / 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 63 | 48
2017 / 2016 |  |  |  |  |  |  |  |  |  |  |  | 11,000 | 1,000 | 18 | 7 |  |  |  |
2017 / 2016 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 83 | 63
Thereafter |  |  |  |  |  |  |  |  |  |  |  | 3,000 |  | 9 | 10 |  |  |  |
Thereafter |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 66 | 58

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units, maturing after the fifth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryNotionalAmountOutstandingMaturingInAfterYearFive
Namespace Prefix: | enb_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units, maturing in the next fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryNotionalAmountOutstandingMaturingInNextTwelveMonths
Namespace Prefix: | enb_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units, maturing in the fifth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryNotionalAmountOutstandingMaturingInYearFive
Namespace Prefix: | enb_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units, maturing in the fourth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryNotionalAmountOutstandingMaturingInYearFour
Namespace Prefix: | enb_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units, maturing in the third fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryNotionalAmountOutstandingMaturingInYearThree
Namespace Prefix: | enb_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in nonmonetary units, maturing in the second fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryNotionalAmountOutstandingMaturingInYearTwo
Namespace Prefix: | enb_
Data Type: | num:volumeItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in a nonmonetary rate, maturing after the fifth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryRateNotionalAmountOutstandingMaturingInAfterYearFive
Namespace Prefix: | enb_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in a nonmonetary rate, maturing in the next fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryRateNotionalAmountOutstandingMaturingInNextTwelveMonths
Namespace Prefix: | enb_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in a nonmonetary rate, maturing in the fifth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryRateNotionalAmountOutstandingMaturingInYearFive
Namespace Prefix: | enb_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in a nonmonetary rate, maturing in the fourth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryRateNotionalAmountOutstandingMaturingInYearFour
Namespace Prefix: | enb_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in a nonmonetary rate, maturing in the third fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryRateNotionalAmountOutstandingMaturingInYearThree
Namespace Prefix: | enb_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount of derivative expressed in a nonmonetary rate, maturing in the second fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNonmonetaryRateNotionalAmountOutstandingMaturingInYearTwo
Namespace Prefix: | enb_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate notional amount outstanding, specified by the derivative(s), maturing after the fifth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNotionalAmountOutstandingMaturingInAfterYearFive
Namespace Prefix: | enb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate notional amount outstanding, specified by the derivative(s), maturing in the next fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNotionalAmountOutstandingMaturingInNextTwelveMonths
Namespace Prefix: | enb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate notional amount outstanding, specified by the derivative(s), maturing in the fifth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNotionalAmountOutstandingMaturingInYearFive
Namespace Prefix: | enb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate notional amount outstanding, specified by the derivative(s), maturing in the fourth fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNotionalAmountOutstandingMaturingInYearFour
Namespace Prefix: | enb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate notional amount outstanding, specified by the derivative(s), maturing in the third fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNotionalAmountOutstandingMaturingInYearThree
Namespace Prefix: | enb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Aggregate notional amount outstanding, specified by the derivative(s), maturing in the second fiscal year following the balance sheet date. + References No definition available. + Details
Name: | enb_DerivativeNotionalAmountOutstandingMaturingInYearTwo
Namespace Prefix: | enb_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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