Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues	$ 199.0	$ 207.7	$ 592.2	$ 591.5
Operating costs and expenses
Net fuel cost	5.2	4.6	13.0	12.7
Utilities Operating Expense, Purchased Power	66.5	83.6	195.0	238.9
Operating expenses:
Operation and maintenance	44.2	37.3	142.3	118.3
Depreciation and amortization	17.7	19.7	54.1	58.8
Taxes other than income taxes	20.9	19.0	58.5	54.5
Other Operating Income (Expense), Net	0.0	1.6	0.9	14.6
Other, net (Note 2)			0.9	(0.6)
Costs and Expenses	154.5	165.8	463.8	497.8
Operating income	44.5	41.9	128.4	93.7
Other income / (expense), net:
Interest expense	(18.3)	(22.6)	(63.7)	(74.4)
Loss on early extinguishment of debt	0.0	0.0	(44.9)	(6.4)
Other income	0.3	0.5	3.2	0.8
Total other expense, net	(18.0)	(22.1)	(105.4)	(80.0)
Income from continuing operations before income tax	26.5	19.8	23.0	13.7
Income tax expense / (benefit) from continuing operations	(9.4)	3.1	(12.6)	1.5
Net income from continuing operations	35.9	16.7	35.6	12.2
Income / (loss) from discontinued operations before income tax	(0.4)	5.0	32.8	36.7
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	0.0	0.3	0.1	(1.6)
Income tax expense from discontinued operations	0.1	1.0	7.1	5.9
Net income / (loss) from discontinued operations	(0.5)	4.3	25.8	29.2
Net income	35.4	21.0	61.4	41.4
THE DAYTON POWER AND LIGHT COMPANY [Member]
Revenues	191.1	198.7	570.2	563.5
Operating costs and expenses
Net fuel cost	0.6	0.1	2.0	1.7
Utilities Operating Expense, Purchased Power	65.9	83.0	193.3	235.7
Operating expenses:
Operation and maintenance	42.2	33.8	135.2	105.9
Depreciation and amortization	17.4	19.1	52.9	56.5
Taxes other than income taxes	20.8	19.0	58.2	54.3
Gain (Loss) on Sale of Assets and Asset Impairment Charges, excluding Discontinued Operations	(0.1)	0.0	0.0	0.1
Gain (Loss) on Disposition of Business	0.0	0.0	0.0	12.4
Costs and Expenses	146.8	155.0	441.6	466.6
Operating income	44.3	43.7	128.6	96.9
Other income / (expense), net:
Interest expense	(6.1)	(5.8)	(19.9)	(20.5)
Loss on early extinguishment of debt	0.0	0.0	0.0	(0.6)
Other income	(0.5)	(0.4)	0.1	(1.9)
Total other expense, net	(6.6)	(6.2)	(19.8)	(23.0)
Income from continuing operations before income tax	37.7	37.5	108.8	73.9
Income tax expense / (benefit) from continuing operations	(7.2)	6.3	5.1	12.0
Net income	$ 44.9	$ 31.2	$ 103.7	$ 61.9