CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
CURRENT ASSETS
Cash and cash equivalents	$ 43.3	$ 5.5
Accounts receivable, less reserve of $1.5 and $1.6, respectively	222.6	188.8
Accounts receivable - unconsolidated affiliates	5.1	5.6
Accrued unbilled revenues	77.9	55.5
Income taxes receivable	18.4	16.0
Fuel inventories	86.2	58.5
Materials and supplies, at average cost	76.7	78.9
Deferred income taxes	176.4	191.4
Fuel clause under recoveries	1.6	68.3
Other	44.9	38.4
Total current assets	753.1	706.9
OTHER PROPERTY AND INVESTMENTS
Investment in unconsolidated affiliates	1,202.2	1,318.2
Other	70.5	70.1
Total other property and investments	1,272.7	1,388.3
PROPERTY, PLANT AND EQUIPMENT
In service	10,198.7	9,983.0
Construction work in progress	230.6	115.9
Total property, plant and equipment	10,429.3	10,098.9
Less accumulated depreciation	3,262.8	3,119.0
Net property, plant and equipment	7,166.5	6,979.9
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	389.7	410.4
Other	35.8	42.3
Total deferred charges and other assets	425.5	452.7
TOTAL ASSETS	9,617.8	9,527.8
CURRENT LIABILITIES
Short-term debt	0.0	98.0
Accounts payable	125.7	179.1
Dividends payable	54.9	49.9
Customer deposits	76.0	73.7
Accrued taxes	61.4	39.7
Accrued interest	34.1	43.0
Accrued compensation	37.1	38.2
Long-term debt due within one year	110.0	0.0
Fuel clause over recoveries	34.5	0.0
Other	53.1	51.7
Total current liabilities	586.8	573.3
LONG-TERM DEBT	2,645.5	2,755.3
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	311.0	315.5
Deferred income taxes	2,333.5	2,268.3
Regulatory liabilities	277.0	263.0
Other	110.6	108.0
Total deferred credits and other liabilities	3,032.1	2,954.8
Total liabilities	$ 6,264.4	$ 6,283.4
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDERS' EQUITY
Common stockholders' equity	$ 1,104.2	$ 1,087.6
Retained earnings	2,285.3	2,198.2
Accumulated other comprehensive loss, net of tax	(36.1)	(41.4)
Total stockholders' equity	3,353.4	3,244.4
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 9,617.8	$ 9,527.8

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.