DEBT - Narrative (Details) $ in Millions, ¥ in Billions								1 Months Ended	3 Months Ended		6 Months Ended
	Jul. 22, 2022 CAD ($)	Jul. 22, 2022 CAD ($)	Jul. 15, 2022 CAD ($)	Jun. 23, 2022 CAD ($)	May 24, 2022 USD ($)	May 17, 2022 CAD ($)	Feb. 10, 2022 CAD ($)	Feb. 28, 2022 USD ($)	Jun. 30, 2022 CAD ($)	Jun. 30, 2021 CAD ($)	Jun. 30, 2022 CAD ($)	Jun. 30, 2021 CAD ($)	Jun. 30, 2022 USD ($)	May 17, 2022 JPY (¥)	Jan. 31, 2022 CAD ($)	Dec. 31, 2021 CAD ($)
Line of Credit Facility [Line Items]
Commitment fee percentage											0.10%
Long-term debt									$ 70,005,000,000		$ 70,005,000,000					$ 67,961,000,000
Long-term debt, fair value adjustment									635,000,000		635,000,000					667,000,000
Amortization of fair value adjustment									11,000,000	$ 13,000,000	22,000,000	$ 25,000,000
364 Day Extendible Credit Facilities
Line of Credit Facility [Line Items]
Debt instrument maturity period (in year)				364 days
Amount of credit facility				$ 5,500,000,000
Term out option period				1 year
364 Day Extendible Credit Facilities | Subsequent event
Line of Credit Facility [Line Items]
Debt instrument maturity period (in year)	364 days
Amount of credit facility	$ 4,800,000,000	$ 4,800,000,000
Term out option period	1 year
Commercial paper and credit facility draws
Line of Credit Facility [Line Items]
Long-term debt									12,300,000,000		12,300,000,000					11,300,000,000
5.00% hybrid fixed-to-fixed subordinated notes due January 2082 | Enbridge Inc.
Line of Credit Facility [Line Items]
Principal amount of debt									750,000,000		750,000,000		$ 1,500		$ 750,000,000
Floating rate notes | Enbridge Inc.
Line of Credit Facility [Line Items]
Principal amount								$ 750
Fixed-to-floating subordinated term notes | Subordinated term notes
Line of Credit Facility [Line Items]
Subordinated debt									8,600,000,000		8,600,000,000
Fixed-to-fixed subordinated term notes | Subordinated term notes
Line of Credit Facility [Line Items]
Subordinated debt																7,700,000,000
Revolving credit facility | Subsequent event
Line of Credit Facility [Line Items]
Debt instrument maturity period (in year)			5 years
Amount of credit facility			$ 3,000,000,000
Line of credit facility, increase		$ 481,000,000
Revolving credit facility | Sustainability-linked Credit Facility
Line of Credit Facility [Line Items]
Debt instrument maturity period (in year)							3 years
Amount of credit facility							$ 1,000,000,000
Uncommitted demand credit facilities
Line of Credit Facility [Line Items]
Amount of credit facility									1,300,000,000		1,300,000,000					1,300,000,000
Unutilized amount of facility									$ 791,000,000		$ 791,000,000					$ 854,000,000
Term Loan Maturing In May 2025 | Three Year Term Loan | Term Loan
Line of Credit Facility [Line Items]
Debt instrument maturity period (in year)						3 years
Amount of credit facility						$ 806,000,000								¥ 84.8
Term Loan Matured In May 2022 | Term Loan
Line of Credit Facility [Line Items]
Amount of credit facility						$ 499,000,000								¥ 52.5
Term Loan Maturing In 2023 | 364-Day Term Loan | Term Loan
Line of Credit Facility [Line Items]
Debt instrument maturity period (in year)					364 days
Amount of credit facility					$ 1,900