DEBT - Long Term Debt Issuance (Details) - Enbridge Inc.	3 Months Ended
	Mar. 31, 2022 USD ($)	Mar. 31, 2022 CAD ($)	Jun. 30, 2021
5.00% hybrid fixed-to-fixed subordinated notes due January 2082
Debt Instrument [Line Items]
Interest rate (as a percent)			5.00%
Principal amount of debt	$ 1,500,000,000	$ 750,000,000
Floating rate senior notes due February 20241
Debt Instrument [Line Items]
Principal amount of debt	$ 600,000,000
Floating rate senior notes due February 20241 | SOFR
Debt Instrument [Line Items]
Spread on variable rate (percent)	0.63%
2.15% senior notes due February 2024
Debt Instrument [Line Items]
Interest rate (as a percent)			2.15%
Principal amount of debt	$ 400,000,000
2.5% senior notes due February 2025
Debt Instrument [Line Items]
Interest rate (as a percent)	2.50%	2.50%
Principal amount of debt	$ 500,000,000