REGULATORY MATTERS - Enbridge Gas Distribution Inc. (Narrative) (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Public Utilities, General Disclosures [Line Items]
Deferred amounts and other assets	$ 8,041	$ 9,542
Enbridge Gas Distribution
Public Utilities, General Disclosures [Line Items]
Term of incentive regulation framework	5 years
Inflation stretch factor (percent)	0.30%
Earnings allowed to be retained under earnings sharing mechanism (as a percent)	1.50%
Undepreciated capital projects	$ 41
Undepreciated integration capital costs	84
Deferred amounts and other assets	$ 156