DEBT - Long Term Debt Repayments (Details) $ in Millions, $ in Millions	1 Months Ended					6 Months Ended
	Apr. 30, 2022 CAD ($)	Feb. 28, 2022 USD ($)	Feb. 28, 2022 CAD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2021 CAD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2022 CAD ($)
Long-Term Debt
DEBT
Principal Amount						$ 784	$ 334
4.85% medium-term notes | Enbridge Gas Inc.
DEBT
Interest rate (as a percent)	4.85%
Principal Amount	$ 125
senior notes | Enbridge Pipelines (Southern Lights) L.L.C.
DEBT
Interest rate (as a percent)						3.98%	3.98%
Principal Amount				$ 34
4.01% senior notes | Enbridge Southern Lights LP
DEBT
Interest rate (as a percent)						4.01%	4.01%
Principal Amount					$ 9
Enbridge Inc. | Floating rate notes
DEBT
Principal Amount		$ 750
Enbridge Inc. | Floating rate notes | London Interbank Offered Rate
DEBT
Spread on variable rate (percent)						0.50%	0.50%
Enbridge Inc. | 4.85% medium-term notes
DEBT
Interest rate (as a percent)		4.85%	4.85%
Principal Amount			$ 200