SHARE CAPITAL - PLANS (Details)	Dec. 31, 2018	Nov. 01, 2018
Equity [Abstract]
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%

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.

No definition available.

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