CASH AND CASH EQUIVALENTS (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
CASH AND CASH EQUIVALENTS [Abstract]
Obligations paid but not yet presented to financial institution	$ 16.9	$ 17.9
Book overdrafts		$ 40.0

The amount of obligations for which payments were made but have not yet been presented to the financial institution.

No definition available.

Name:	eep_ObligationsPaidNotYetPresentedToFinancialInstitution
Namespace Prefix:	eep_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant