CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
CURRENT ASSETS
Cash and cash equivalents	$ 0.0	$ 75.2
Accounts receivable, less reserve of $2.0 and $1.4, respectively	224.3	173.1
Accounts receivable - unconsolidated affiliates	2.4	1.7
Accrued unbilled revenues	71.0	53.5
Income taxes receivable	17.7	17.2
Fuel inventories	87.6	113.8
Materials and supplies, at average cost	75.4	80.1
Fuel clause under recoveries	0.5	0.0
Other	68.2	55.6
Total current assets	547.1	570.2
OTHER PROPERTY AND INVESTMENTS
Investment in unconsolidated affiliates	1,168.0	1,194.4
Other	72.0	70.7
Total other property and investments	1,240.0	1,265.1
PROPERTY, PLANT AND EQUIPMENT
In service	10,599.6	10,318.3
Construction work in progress	365.8	278.5
Total property, plant and equipment	10,965.4	10,596.8
Less accumulated depreciation	3,431.1	3,274.4
Net property, plant and equipment	7,534.3	7,322.4
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	404.8	402.2
Other	57.8	20.7
Total deferred charges and other assets	462.6	422.9
TOTAL ASSETS	9,784.0	9,580.6
CURRENT LIABILITIES
Short-term debt	213.2	0.0
Accounts payable	129.4	262.5
Dividends payable	60.4	54.9
Customer deposits	77.4	77.0
Accrued taxes	58.7	45.9
Accrued interest	33.0	42.9
Accrued compensation	34.1	54.4
Long-term debt due within one year	124.9	110.0
Fuel clause over recoveries	1.4	61.3
Other	62.8	43.9
Total current liabilities	795.3	752.8
LONG-TERM DEBT	2,505.2	2,628.8
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	280.2	299.9
Deferred income taxes	2,314.5	2,178.2
Regulatory liabilities	292.0	273.6
Other	151.6	121.3
Total deferred credits and other liabilities	3,038.3	2,873.0
Total liabilities	6,338.8	6,254.6
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDERS' EQUITY
Common stockholders' equity	1,104.4	1,101.3
Retained earnings	2,369.8	2,259.8
Accumulated other comprehensive loss, net of tax	(29.0)	(35.1)
Total stockholders' equity	3,445.2	3,326.0
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 9,784.0	$ 9,580.6

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.