DEBT - Narrative (Details) $ in Millions, $ in Millions		1 Months Ended	6 Months Ended
	Jul. 28, 2025 USD ($)	Jul. 31, 2025 CAD ($)	Jun. 30, 2025 CAD ($)	Dec. 31, 2024 CAD ($)
Line of Credit Facility [Line Items]
Long-term debt and lease obligation			$ 96,981	$ 93,414
Increase (decrease) from cumulative fair value adjustments			(424)	(468)
Commercial Paper and Credit Facility Draws
Line of Credit Facility [Line Items]
Long-term debt and lease obligation			10,300	10,300
Fixed To Floating Subordinated Term Notes | Subordinated Term Notes
Line of Credit Facility [Line Items]
Subordinated debt			14,900	15,500
Committed Credit Facilities
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 22,791
Term out option period (in years)			1 year
Unutilized amount of facility			$ 11,542
Uncommitted Demand Credit Facilities
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			1,500	1,400
Unutilized amount of facility			$ 932	$ 931
Commitment fee (as percent)			0.10%
Enbridge Gas Inc. | Committed Credit Facilities
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 2,500
Maturity			Dec. 31, 2026
Unutilized amount of facility			$ 1,585
Enbridge Pipelines Inc. | Committed Credit Facilities
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity			$ 2,000
Maturity			Dec. 31, 2026
Unutilized amount of facility			$ 1,559
Minimum | Uncommitted Demand Credit Facilities
Line of Credit Facility [Line Items]
Maturity			Dec. 31, 2025
Maximum | Uncommitted Demand Credit Facilities
Line of Credit Facility [Line Items]
Maturity			Dec. 31, 2049
Subsequent Event | Revolving Credit Facility | 364-Day Extendible Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 8,800
Term of credit facility		364 days
Maturity		Jul. 31, 2027
Term out option period (in years)		1 year
Subsequent Event | Revolving Credit Facility | Five-Year Credit Facilities
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 7,800
Term of credit facility		5 years
Maturity		Jul. 31, 2030
Subsequent Event | Revolving Credit Facility | Three-Year Credit Facilities
Line of Credit Facility [Line Items]
Term of credit facility		3 years
Maturity		Jul. 31, 2028
Subsequent Event | Enbridge Gas Inc. | Committed Credit Facilities | 364-Day Extendible Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 2,500
Term of credit facility		364 days
Maturity		Jul. 31, 2027
Term out option period (in years)		1 year
Subsequent Event | Enbridge Pipelines Inc. | Committed Credit Facilities | 364-Day Extendible Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 2,000
Term of credit facility		364 days
Maturity		Jul. 31, 2027
Term out option period (in years)		1 year
Subsequent Event | Enbridge Energy Partners, L.P | 5.88% Senior Notes Due in October 2025
Line of Credit Facility [Line Items]
Maturity	Oct. 31, 2025
Debt outstanding redeemed at par	$ 500
Interest rate (as percent)	5.88%