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SHARE CAPITAL (Details 3) |  | 1 Months Ended
--- | --- | ---
Dec. 31, 2012 | May 31, 2011 Common Shares
Stock split conversion ratio |  | 2
Discount on the purchase of common shares with reinvested dividends (as a percent) | 2.00% |
Minimum outstanding common shares required to be acquired to exercise the Shareholder Rights Plan (as a percent) | 20.00% |
Discount to the market price available to each rights holder, other than the acquiring person and related parties, under the Shareholder Rights Plan (as a percent) | 50.00% |

X
- Definition Represents the discount on the market price, expressed as a percentage, on purchase of common shares of the entity, which is available to the rights holder, other than the acquiring person and related parties acquiring a specified percentage or more of the entity's common shares outstanding. + References No definition available. + Details
Name: | enb_ShareholderRightsPlanDiscountOnPurchaseOfCommonSharesByRightsHolder
Namespace Prefix: | enb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the minimum percentage of outstanding common shares of the entity required to be acquired by a shareholder to exercise the rights under the shareholder rights plan. + References No definition available. + Details
Name: | enb_ShareholderRightsPlanMinimumCommonSharesRequiredToBeAcquiredToExerciseRights
Namespace Prefix: | enb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the rate of discount on the purchase of common shares with reinvested dividends. + References No definition available. + Details
Name: | enb_StockholdersEquityDividendReinvestmentPlanDiscountOnPurchaseOfCommonShares
Namespace Prefix: | enb_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This item represents the conversion ratio used in the calculation of a stock split. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Stock Split -URI http://asc.fasb.org/extlink&oid=6525746 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB TOPIC 4.C) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187143-122770 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration