v3.26.1
DEBT - Narrative (Details) - CAD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Line of Credit Facility [Line Items]    
Increase (decrease) from cumulative fair value adjustments $ (440) $ (430)
Commercial Paper and Credit Facility Draws    
Line of Credit Facility [Line Items]    
Long term debt current 10,500 12,100
Fixed To Floating Subordinated Term Notes | Subordinated Term Notes    
Line of Credit Facility [Line Items]    
Subordinated debt 16,200 16,000
Committed Credit Facilities    
Line of Credit Facility [Line Items]    
Line of credit facility, maximum borrowing capacity $ 23,033  
Term out option period (in years) 1 year  
Unutilized amount of facility $ 11,019  
Uncommitted Demand Credit Facilities    
Line of Credit Facility [Line Items]    
Line of credit facility, maximum borrowing capacity 1,600 1,600
Unutilized amount of facility $ 923 $ 932
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, 2027  
Unutilized amount of facility $ 1,010  
Enbridge Pipelines Inc. | Committed Credit Facilities    
Line of Credit Facility [Line Items]    
Line of credit facility, maximum borrowing capacity $ 2,000  
Maturity Dec. 31, 2027  
Unutilized amount of facility $ 1,153  
Minimum | Uncommitted Demand Credit Facilities    
Line of Credit Facility [Line Items]    
Maturity Dec. 31, 2027  
Maximum | Uncommitted Demand Credit Facilities    
Line of Credit Facility [Line Items]    
Maturity Dec. 31, 2049