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SHARE CAPITAL - PLANS (Details)	Dec. 31, 2016
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

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Namespace Prefix:	enb_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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- 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

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- References

No definition available.

+ Details

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