CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating revenues
Electric	$ 880.7	$ 894.8	$ 2,314.8	$ 2,309.3
Gas	153.9	157.2	830.7	707.8
Steam and other	9.7	8.7	31.8	28.7
Total operating revenues	1,044.3	1,060.7	3,177.3	3,045.8
Operating expenses
Electric fuel and purchased power	284.7	288.6	829.5	841.7
Cost of natural gas sold and transported	34.3	32.3	376.7	282.1
Cost of sales — steam and other	3.5	3.3	11.9	10.9
Operating and maintenance expenses	198.4	201.4	597.9	573.5
Demand side management expenses	36.6	39.4	100.9	105.3
Depreciation and amortization	153.5	168.0	448.6	406.1
Taxes (other than income taxes)	49.0	50.8	154.8	153.2
Total operating expenses	760.0	783.8	2,520.3	2,372.8
Operating income	284.3	276.9	657.0	673.0
Other income, net	1.4	1.3	1.9	2.4
Allowance for funds used during construction — equity	3.8	16.4	12.9	40.9
Interest charges and financing costs
Interest charges — includes other financing costs of $1.6, $1.7, $4.9 and $4.9, respectively	59.2	53.2	176.3	154.3
Allowance for funds used during construction — debt	(2.2)	(6.4)	(7.0)	(16.1)
Total interest charges and financing costs	57.0	46.8	169.3	138.2
Income before income taxes	232.5	247.8	502.5	578.1
Income taxes	28.0	40.7	57.7	115.0
Net income	$ 204.5	$ 207.1	$ 444.8	$ 463.1