CONTINGENCIES (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Sep. 30, 2018 CAD ($) $ / shares
Spectra Energy Partners, LP
CONTINGENCIES
Security shareholders entitlement share ratio	1.111
Enbridge Energy Partners, L.P.
CONTINGENCIES
Security shareholders entitlement share ratio	0.335
Enbridge Energy Management, LLC
CONTINGENCIES
Security shareholders entitlement share ratio	0.335
Enbridge Income Fund Holdings Inc
CONTINGENCIES
Security shareholders entitlement share ratio	0.735
Shareholder entitlement cash payment per share | $ / shares	$ 0.45
Shareholder entitlement cash payment | $	$ 63