CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
CURRENT ASSETS
Cash and cash equivalents	$ 0.0	$ 94.3
Accounts receivable, less reserve of $1.4 and $1.7, respectively	163.5	174.7
Accrued unbilled revenues	54.6	62.6
Income taxes receivable	15.2	9.9
Fuel inventories	48.3	57.6
Materials and supplies, at average cost	112.8	126.7
Fuel clause under recoveries	24.5	2.0
Other	35.2	29.5
Total current assets	454.1	557.3
OTHER PROPERTY AND INVESTMENTS
Investment in unconsolidated affiliates	1,173.9	1,177.5
Other	77.0	73.4
Total other property and investments	1,250.9	1,250.9
PROPERTY, PLANT AND EQUIPMENT
In service	12,326.7	11,994.8
Construction work in progress	156.6	376.4
Total property, plant and equipment	12,483.3	12,371.2
Less accumulated depreciation	3,713.9	3,727.4
Net property, plant and equipment	8,769.4	8,643.8
DEFERRED CHARGES AND OTHER ASSETS
Regulatory assets	276.5	285.8
Other	10.7	10.8
Total deferred charges and other assets	287.2	296.6
TOTAL ASSETS	10,761.6	10,748.6
CURRENT LIABILITIES
Short-term debt	366.4	0.0
Accounts payable	194.1	239.3
Dividends payable	73.0	72.9
Customer deposits	83.7	83.6
Accrued taxes	26.2	44.0
Accrued interest	35.2	44.5
Accrued compensation	23.6	47.8
Long-term debt due within one year	0.0	250.0
Fuel clause over recoveries	0.0	0.3
Other	82.0	87.0
Total current liabilities	884.2	869.4
LONG-TERM DEBT	2,897.3	2,896.9
DEFERRED CREDITS AND OTHER LIABILITIES
Accrued benefit obligations	227.1	225.7
Deferred income taxes	1,319.5	1,310.9
Deferred investment tax credits	7.2	7.2
Regulatory liabilities	1,254.3	1,270.7
Other	195.8	162.7
Total deferred credits and other liabilities	3,003.9	2,977.2
Total liabilities	6,785.4	6,743.5
COMMITMENTS AND CONTINGENCIES (NOTE 14)
STOCKHOLDERS' EQUITY
Common stockholders' equity	1,120.5	1,127.7
Retained earnings	2,877.8	2,906.3
Accumulated other comprehensive loss, net of tax	(22.1)	(28.9)
Total stockholders' equity	3,976.2	4,005.1
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 10,761.6	$ 10,748.6