DEBT - Long Term Debt Issuance (Details)	May 31, 2020 CAD ($)	Apr. 30, 2020 CAD ($)	Feb. 29, 2020 USD ($)
Enbridge Inc. | Floating rate notes
Debt Instrument [Line Items]
Principal Amount			$ 750,000,000
Enbridge Inc. | 3.20% medium-term notes
Debt Instrument [Line Items]
Principal Amount	$ 750,000,000
Interest rate (as a percent)	3.20%
Enbridge Inc. | 2.44% medium-term notes
Debt Instrument [Line Items]
Principal Amount	$ 550,000,000
Interest rate (as a percent)	2.44%
Enbridge Gas Inc. | 2.90% medium-term notes
Debt Instrument [Line Items]
Principal Amount		$ 600,000,000
Interest rate (as a percent)		2.90%
Enbridge Gas Inc. | 3.65% medium-term notes
Debt Instrument [Line Items]
Principal Amount		$ 600,000,000
Interest rate (as a percent)		3.65%