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SIGNIFICANT ACCOUNTING POLICIES - PROPERTY, PLANT AND EQUIPMENT (Details) | 12 Months Ended
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Dec. 31, 2020 number_of_primary_method_of_depreciation
Accounting Policies [Abstract] |
Number of primary methods of depreciation which are utilized | 2

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- Definition Represents the number of primary methods of depreciation which are utilized. + References No definition available. + Details
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Namespace Prefix: | enb_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_AccountingPoliciesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration