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SHARE CAPITAL - PLANS (Details) | Dec. 31, 2016
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SHARE CAPITAL |
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
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration