CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
CURRENT ASSETS
Cash and cash equivalents	$ 0.0	$ 94.3
Accounts receivable, less reserve of $1.3 and $1.7, respectively	163.6	174.7
Accrued unbilled revenues	86.2	62.6
Income taxes receivable	6.3	9.9
Fuel inventories	47.9	57.6
Materials and supplies, at average cost	86.9	126.7
Fuel clause under recoveries	30.7	2.0
Other	34.0	29.5
Total current assets	455.6	557.3
OTHER PROPERTY AND INVESTMENTS
Investment in unconsolidated affiliates	1,171.3	1,177.5
Other	81.4	73.4
Total other property and investments	1,252.7	1,250.9
PROPERTY, PLANT AND EQUIPMENT
In service	12,516.7	11,994.8
Construction work in progress	126.8	376.4
Total property, plant and equipment	12,643.5	12,371.2
Less: accumulated depreciation	3,766.0	3,727.4
Net property, plant and equipment	8,877.5	8,643.8
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	290.0	285.8
Other	10.4	10.8
Total deferred charges and other assets	300.4	296.6
TOTAL ASSETS	10,886.2	10,748.6
CURRENT LIABILITIES
Short-term debt	207.5	0.0
Accounts payable	151.6	239.3
Dividends payable	73.0	72.9
Customer deposits	83.4	83.6
Accrued taxes	40.8	44.0
Accrued interest	35.8	44.5
Accrued compensation	33.1	47.8
Long-term debt due within one year	0.0	250.0
Fuel clause over recoveries	0.1	0.3
Other	77.4	87.0
Total current liabilities	702.7	869.4
LONG-TERM DEBT	3,193.6	2,896.9
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	224.9	225.7
Deferred income taxes	1,325.0	1,310.9
Deferred investment tax credits	7.2	7.2
Regulatory liabilities	1,243.0	1,270.7
Other	182.6	162.7
Total deferred credits and other liabilities	2,982.7	2,977.2
Total liabilities	6,879.0	6,743.5
COMMITMENTS AND CONTINGENCIES (NOTE 14)
STOCKHOLDERS' EQUITY
Common stockholders' equity	1,123.4	1,127.7
Retained earnings	2,904.9	2,906.3
Accumulated other comprehensive loss, net of tax	(21.1)	(28.9)
Total stockholders' equity	4,007.2	4,005.1
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 10,886.2	$ 10,748.6