CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014	Dec. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 271.3		$ 395.8	$ 393.8
Adjustments to reconcile net income to net cash provided from operating activities
Depreciation and amortization	307.9		281.4	298.6
Deferred income taxes and investment tax credits	102.6		177.3	125.9
Equity in earnings of unconsolidated affiliates	(15.5)	[1]	(172.6)	(101.9)
Distributions from unconsolidated affiliates	94.1		143.7	51.7
Allowance for equity funds used during construction	(8.3)		(4.2)	(6.6)
Gain on disposition of assets	(0.2)		(0.2)	(8.6)
Stock-based compensation	5.9		(2.7)	(3.5)
Regulatory assets	(9.1)		4.5	26.7
Regulatory liabilities	(27.5)		(4.4)	(32.5)
Other assets	10.6		(16.3)	1.3
Other liabilities	8.6		29.6	(7.0)
Change in certain current assets and liabilities
Accounts receivable, net	15.7		(9.4)	(34.0)
Accounts receivable - unconsolidated affiliates	3.9		6.8	3.7
Accrued unbilled revenues	2.0		3.2	(1.3)
Income taxes receivable	(1.2)		(10.4)	1.6
Fuel, materials and supplies inventories	(56.5)		20.4	5.1
Fuel clause under recoveries	68.3		(42.1)	(26.2)
Other current assets	(17.2)		(2.6)	(4.4)
Accounts payable	30.9		(64.0)	56.9
Fuel clause over recoveries	61.3		(0.4)	(108.8)
Other current liabilities	17.8		(11.8)	(7.3)
Net Cash Provided from Operating Activities	865.4		721.6	623.2
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures (less allowance for equity funds used during construction)	(547.8)		(569.3)	(990.6)
Return of capital - equity method investments	45.2		9.5	0.0
Proceeds from sale of assets	2.5		0.7	36.3
Investment in unconsolidated affiliates	0.0		0.0	(2.7)
Net Cash Used in Investing Activities	(500.1)		(559.1)	(957.0)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from long-term debt	0.0		588.9	247.4
Issuance of common stock	7.2		13.2	14.2
Dividends paid on common stock	(204.6)		(184.1)	(165.5)
Payment of long-term debt	(0.2)		(240.2)	(0.1)
(Decrease) increase in short-term debt	(98.0)		(341.6)	8.7
Changes in advances with unconsolidated affiliates	0.0		0.0	129.6
Contributions from noncontrolling interest partners	0.0		0.0	107.0
Distributions to noncontrolling interest partners	0.0		0.0	(2.5)
Net Cash (Used in) Provided From Financing Activities	(295.6)		(163.8)	338.8
NET CHANGE IN CASH AND CASH EQUIVALENTS	69.7		(1.3)	5.0
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	5.5		6.8	1.8
CASH AND CASH EQUIVALENTS AT END OF PERIOD	$ 75.2		$ 5.5	$ 6.8

[1] In September 2015, the Company recorded a $108.4 million pre-tax charge for its share of the goodwill impairment, as adjusted for the basis difference. See Note 3 for further discussion of Enable's goodwill impairment.