CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions		3 Months Ended				6 Months Ended
		Jun. 30, 2017		Jun. 30, 2016		Jun. 30, 2017		Jun. 30, 2016
Operating revenues:
Transportation and other services	[1]	$ 596.5	[2]	$ 621.3	[3]	$ 1,201.2	[4]	$ 1,251.0	[5]
Total operating revenues	[1]	596.5	[2]	621.3	[3]	1,201.2	[4]	1,251.0	[5]
Operating expenses:
Environmental costs, net of recoveries	[1]	3.5		0.1		13.8		17.0
Operating and administrative	[1]	158.3		134.1		311.4		276.4
Power	[1]	66.4		59.7		140.9		132.5
Depreciation and amortization	[1]	108.3		104.9		217.1		206.3
Gain on sale of assets (Note 6)		(51.5)		0.0		(62.1)	[1]	0.0
Operating Expenses		285.0		298.8		621.1		632.2
Operating income	[1]	311.5		322.5		580.1		618.8
Interest expense, net	[1]	(102.8)		(93.3)		(201.7)		(197.8)
Allowance for equity used during construction	[1]	10.7		13.3		21.0		25.6
Other income	[1]	11.4		0.2		11.4	[6]	0.4
Income from continuing operations before income tax	[1]	230.8	[6]	242.7		410.8		447.0
Income tax benefit (expense)	[1]	1.6		(2.0)		0.5		(3.6)
Income from continuing operations	[1]	232.4		240.7		411.3		443.4
Loss from discontinued operations, net of tax (Note 6)	[1]	(35.4)		(63.0)		(56.8)		(93.3)
Net income	[1]	197.0		177.7		354.5		350.1
Less: Net income attributable to:
Noncontrolling interests		90.6		70.3		158.9		139.1
Series 1 preferred unit distributions		6.5		22.5		29.0		45.0
Accretion of discount on Series 1 preferred units		7.3		1.2		8.5		2.3
Net income attributable to general and limited partner ownership interests in Enbridge Energy Partners, L.P.		92.6		83.7		158.1		163.7
Net income (loss) allocable to common units and i-units:
Income from continuing operations		104.9		73.7		172.1		118.8
Loss from discontinued operations		(24.2)		(46.0)		(38.0)		(67.0)
Net income allocable to common units and i-units		$ 80.7		$ 27.7		$ 134.1		$ 51.8
Net income (loss) per common unit and i-unit (basic and diluted):
Income from continuing operations		$ 0.27		$ 0.21		$ 0.46		$ 0.33
Loss from discontinued operations		(0.06)		(0.13)		(0.10)		(0.18)
Net income per common unit and i-unit		$ 0.21		$ 0.08		$ 0.36		$ 0.15
Weighted average common units and i-units outstanding (basic and diluted)		400.1		347.1		376.7		345.9
Distributions paid per limited partner unit		$ 0.350		$ 0.583		$ 0.933		$ 1.166
Third Party [Member]
Operating revenues:
Transportation and other services		$ 569.7		$ 591.5		$ 1,149.7		$ 1,198.6
Operating expenses:
Operating and administrative		84.3		62.6		161.7		124.5
Affiliated Entity [Member]
Operating revenues:
Transportation and other services		26.8		29.8		51.5		52.4
Operating expenses:
Operating and administrative		$ 74.0		$ 71.5		$ 149.7		$ 151.9

[1] Certain costs that are not allocated to individual segments, including Other, interest expense, allowance for equity used during construction, and income taxes are included in the consolidated total.

[2] There were no intersegment revenues for the three months ended June 30, 2017.

[3] There were no intersegment revenues for the three months ended June 30, 2016.

[4] There were no intersegment revenues for the six months ended June 30, 2017.

[5] There were no intersegment revenues for the six months ended June 30, 2016.

[6] Other income includes our equity income for our Liquids segment from our investment in the Bakken Pipeline System.