Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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Name:	us-gaap_MinorityInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

NONCONTROLLING INTERESTS (Details) - CAD ($) $ in Millions	Dec. 31, 2022	Oct. 05, 2022	Dec. 31, 2021
NONCONTROLLING INTERESTS
Noncontrolling interests	$ 3,511		$ 2,542
Algonquin Gas Transmission, LLC
NONCONTROLLING INTERESTS
Noncontrolling interests	400		377
Enbridge Athabasca Midstream Investor Limited Partnership
NONCONTROLLING INTERESTS
Noncontrolling interests	1,106		0
Maritimes & Northeast Pipeline, L.L.C.
NONCONTROLLING INTERESTS
Noncontrolling interests	582		546
Renewable energy assets
NONCONTROLLING INTERESTS
Noncontrolling interests	1,302		1,503
Westcoast Energy Inc.
NONCONTROLLING INTERESTS
Noncontrolling interests	117		116
Other Non Controlling Interest
NONCONTROLLING INTERESTS
Noncontrolling interests	$ 4		$ 0
Athabasca Regional Oil Sands System \| Athabasca Regional Oil Sands System
NONCONTROLLING INTERESTS
Ownership interest percentage held by noncontrolling owners		11.60%