CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016
CURRENT ASSETS
Cash and cash equivalents	$ 0.0	$ 0.3
Accounts receivable, less reserve of $1.1 and $1.5, respectively	185.0	173.0
Accounts receivable - unconsolidated affiliates	2.1	2.5
Accrued unbilled revenues	86.7	59.7
Income taxes receivable	14.8	19.4
Fuel inventories	77.5	79.8
Materials and supplies, at average cost	82.9	81.7
Fuel clause under recoveries	107.4	51.3
Other	76.1	81.8
Total current assets	632.5	549.5
OTHER PROPERTY AND INVESTMENTS
Investment in unconsolidated affiliates	1,159.1	1,158.6
Other	75.8	73.6
Total other property and investments	1,234.9	1,232.2
PROPERTY, PLANT AND EQUIPMENT
In service	10,827.4	10,690.0
Construction work in progress	797.8	495.1
Total property, plant and equipment	11,625.2	11,185.1
Less accumulated depreciation	3,536.9	3,488.9
Net property, plant and equipment	8,088.3	7,696.2
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	406.8	404.8
Other	58.0	56.9
Total deferred charges and other assets	464.8	461.7
TOTAL ASSETS	10,420.5	9,939.6
CURRENT LIABILITIES
Short-term debt	193.2	236.2
Accounts payable	188.4	205.4
Dividends payable	60.4	60.4
Customer deposits	79.1	77.7
Accrued taxes	40.1	41.3
Accrued interest	43.7	40.4
Accrued compensation	33.0	45.1
Long-term debt due within one year	224.9	224.7
Other	63.4	96.0
Total current liabilities	926.2	1,027.2
LONG-TERM DEBT	2,863.0	2,405.8
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	275.6	274.8
Deferred income taxes	2,379.4	2,334.5
Regulatory liabilities	321.6	299.7
Other	162.7	153.8
Total deferred credits and other liabilities	3,139.3	3,062.8
Total liabilities	6,928.5	6,495.8
COMMITMENTS AND CONTINGENCIES (NOTE 12)
STOCKHOLDERS' EQUITY
Common stockholders' equity	1,110.3	1,105.8
Retained earnings	2,409.6	2,367.3
Accumulated other comprehensive loss, net of tax	(27.9)	(29.3)
Total stockholders' equity	3,492.0	3,443.8
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 10,420.5	$ 9,939.6

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.