RETIREMENT AND POSTRETIREMENT BENEFITS (Details)	Jun. 30, 2013 item
RETIREMENT AND POSTRETIREMENT BENEFITS
Number of registered pension plans	3
Number of supplemental pension plans	4

Represents the number of registered pension plans which provide either defined benefit or defined contribution pension benefits, or both, to employees of the entity.

No definition available.

Name:	enb_NumberOfRegisteredPensionPlans
Namespace Prefix:	enb_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant