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SUBSEQUENT EVENTS (Details) - Subsequent Event $ in Millions	Oct. 03, 2019 CAD ($)	Oct. 01, 2019 CAD ($)	Nov. 01, 2019 CAD ($)	Nov. 01, 2019 USD ($)
Disposed of by sale, not discontinued operations | Enbridge Gas New Brunswick
SUBSEQUENT EVENTS
Proceeds from sale		$ 331,000,000
Disposed of by sale, not discontinued operations | St. Lawrence Gas Company
SUBSEQUENT EVENTS
Disposal group, consideration			$ 72,000,000	$ 55
Medium-term notes
SUBSEQUENT EVENTS
Face amount	$ 1,000,000,000.0
Debt instrument, term	10 years
Interest rate (as a percent)	2.99%

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