NONCONTROLLING INTERESTS (Tables)

12 Months Ended

Dec. 31, 2016

Noncontrolling Interest [Abstract]

Schedule of Non Controlling Interest

The following tables present additional information regarding noncontrolling interests as presented on our consolidated statements of financial position and components of net income (loss) attributable to noncontrolling interests as presented on our consolidated statements of income:

	December 31
	2016		2015
	(in millions)
Eastern Access Interests		1,891.9		1,801.1
U.S. Mainline Expansion Interests		1,621.4		1,476.6
North Dakota Pipeline Company Interests		29.6		286.8
Midcoast Energy Partners, L.P.		303.2		380.0
Total	$	3,846.1	$	3,944.5

Schedule Of Net Income Or Loss Attributable To Noncontrolling Interest

	For the year ended December 31
	2016		2015		2014
	(in millions)
Alberta Clipper Interests	$	—	$	(0.8)	$	54.6
Eastern Access Interests		204.7		189.3		145.3
U.S. Mainline Expansion Interests		138.5		108.2		33.8
North Dakota Pipeline Company Interests(1)		(270.8)		—		—
Midcoast Energy Partners, L.P.		(46.0)		(75.6)		29.6
Total	$	26.4	$	221.1	$	263.3

 ⁽¹⁾ Inclusive of impairment on the Sandpiper Project attributable to noncontrolling interest for the year ending December 31, 2016. For further details, see Note 10. Property, Plant and Equipment.