DEBT - Narrative (Details) $ in Millions				1 Months Ended		6 Months Ended
	May 31, 2024 USD ($)	Mar. 06, 2024 USD ($)	Jan. 02, 2024 USD ($)	Jul. 31, 2024 CAD ($)	Jun. 30, 2024 CAD ($)	Jun. 30, 2024 CAD ($)	Jun. 30, 2024 USD ($)	Jul. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 CAD ($)	Dec. 31, 2023 CAD ($)
Line of Credit Facility [Line Items]
Commitment fee percentage						0.10%	0.10%
Long-term debt and lease obligation					$ 85,181,000,000	$ 85,181,000,000					$ 74,715,000,000
Cumulative fair value adjustment, net					491,000,000	$ 491,000,000					514,000,000
Debt Instrument Interest Rate Terms Period One | Enbridge Inc.
Line of Credit Facility [Line Items]
Debt instrument maturity period (in years)						5 years 6 months	5 years 6 months
Spread on variable rate (in percent)						3.12%	3.12%
Debt Instrument Interest Rate Terms Period Two | Enbridge Inc.
Line of Credit Facility [Line Items]
Debt instrument maturity period (in years)						9 years 9 months	9 years 9 months
Spread on variable rate (in percent)						2.97%	2.97%
Long-Term Debt
Line of Credit Facility [Line Items]
Debt instrument, face amount									$ 4,700
Principal amount						$ 200,000,000	$ 3,200
EOG Acquisition
Line of Credit Facility [Line Items]
Debt increased		$ 1,900
Cumulative fair value adjustment, net					(469,000,000)	(469,000,000)
RNG Facilities
Line of Credit Facility [Line Items]
Debt increased			$ 568
Questar Acquisition
Line of Credit Facility [Line Items]
Debt increased	$ 1,000
Cumulative fair value adjustment, net					(302,000,000)	(302,000,000)
Commercial paper and credit facility draws
Line of Credit Facility [Line Items]
Long-term debt and lease obligation					6,500,000,000	6,500,000,000					3,800,000,000
Fixed-to-floating subordinated term notes | Subordinated term notes
Line of Credit Facility [Line Items]
Subordinated debt					15,000,000,000.0	15,000,000,000.0					13,000,000,000.0
10 Year Senior Notes | Algonquin Gas Transmission, LLC | Subsequent event
Line of Credit Facility [Line Items]
Debt instrument maturity period (in years)				10 years
Debt instrument, face amount								$ 350
Committed credit facilities
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					21,860,000,000	$ 21,860,000,000
Term out option period (in years)						1 year	1 year
Unutilized amount of facility					14,422,000,000	$ 14,422,000,000
Committed credit facilities | Enbridge Inc.
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					8,671,000,000	8,671,000,000
Unutilized amount of facility					4,408,000,000	4,408,000,000
Committed credit facilities | Enbridge Gas Inc.
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					2,500,000,000	2,500,000,000
Unutilized amount of facility					2,300,000,000	2,300,000,000
Committed credit facilities | Enbridge Pipelines Inc.
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					2,000,000,000	2,000,000,000
Unutilized amount of facility					1,246,000,000	1,246,000,000
Committed credit facilities | Term Loan Maturing In March 2049
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity										$ 200,000,000
Committed credit facilities | 364-day extendible credit facility | Enbridge Gas Inc. | Subsequent event
Line of Credit Facility [Line Items]
Term out option period (in years)				1 year
Debt instrument maturity period (in years)				364 days
Committed credit facilities | 364-day extendible credit facility | Enbridge Pipelines Inc. | Subsequent event
Line of Credit Facility [Line Items]
Term out option period (in years)				1 year
Debt instrument maturity period (in years)				364 days
Uncommitted demand credit facilities
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					1,200,000,000	1,200,000,000					1,100,000,000
Unutilized amount of facility					$ 820,000,000	$ 820,000,000					$ 572,000,000
Non-Revolving Term Loan Facility | Non-Revolving Term Loan Facility Maturing In June 2029
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity									$ 250
Debt instrument maturity period (in years)					5 years
Revolving credit facility | 364-day extendible credit facility | Subsequent event
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity				$ 8,800,000,000
Term out option period (in years)				1 year
Debt instrument maturity period (in years)				364 days
Revolving credit facility | Term Loan Maturing In July 2026 | Subsequent event
Line of Credit Facility [Line Items]
Debt instrument maturity period (in years)				3 years
Revolving credit facility | Five Year Credit Facilities | Subsequent event
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity				$ 7,800,000,000
Debt instrument maturity period (in years)				5 years