RELATED PARTY TRANSACTIONS (Tables)

6 Months Ended

Jun. 30, 2015

RELATED PARTY TRANSACTIONS [Abstract]

Schedule of Distributions

Distribution	Distribution	Amount Paid to		Amount Paid to the		Total MEP
Declaration Date	Payment Date	EEP		noncontrolling interest		Distribution
		(in millions)
April 29, 2015	May 15, 2015	$	8.6	$	7.4	$	16.0
January 28, 2015	February 13, 2015		8.5		7.3		15.8
		$	17.1	$	14.7	$	31.8

Distribution	Distribution	Amount Paid to		Amount paid to the		Total Series AC
Declaration Date	Payment Date	Partnership		noncontrolling interest		Distribution
		(in millions)
January 29, 2015	February 13, 2015	$	13.7	$	27.5	$	41.2

Distribution	Distribution	Amount Paid to		Amount Paid to the		Total Series EA
Declaration Date	Payment Date	EEP		noncontrolling interest		Distribution
		(in millions)
April 30, 2015	May 15, 2015	$	17.5	$	52.3	$	69.8
January 29, 2015	February 13, 2015		22.3		67.0		89.3
		$	39.8	$	119.3	$	159.1

Distribution	Distribution	Amount Paid to		Amount Paid to the		Total Series ME
Declaration Date	Payment Date	EEP		noncontrolling interest		Distribution
		(in millions)
April 30, 2015	May 15, 2015	$	1.5	$	4.5	$	6.0
January 29, 2015	February 13, 2015		1.8		5.2		7.0
		$	3.3	$	9.7	$	13.0

Schedule of Components of Noncontrolling Interests

	For the three months						For the six months
	ended June 30,						ended June 30,
	2015			2014			2015			2014
	(in millions)						(in millions)
Alberta Clipper Interests	$	—		$	11.6		$	(0.8	)	$	21.7
Eastern Access Interests		45.1			27.2			89.9			48.8
U.S. Mainline Expansion Interests		27.9			5.7			44.4			10.1
Midcoast Energy Partners, L.P.		(63.0	)		(2.1	)		(72.2	)		(1.9	)
Total	$	10.0		$	42.4		$	61.3		$	78.7