Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues	$ 414.1	$ 479.2	$ 1,281.5	$ 1,329.6
Cost of revenues:
Fuel	71.4	85.1	202.2	235.9
Purchased power	145.4	153.7	460.2	466.2
Amortization of intangibles	0.0	0.3	0.0	0.9
Total cost of revenues	216.8	239.1	662.4	703.0
Gross margin	197.3	240.1	619.1	626.6
Operating expenses:
Operation and maintenance	101.4	94.0	281.5	294.7
Depreciation and amortization	34.8	34.5	104.1	103.7
General taxes	20.8	21.2	67.8	70.3
Goodwill impairment	0.0	0.0	0.0	135.8
Fixed-asset impairment	0.0	0.0	0.0	11.5
Other	0.0	(0.1)	(0.3)	1.3
Total operating expenses	157.0	149.6	453.1	617.3
Operating income	40.3	90.5	166.0	9.3
Other income / (expense), net
Investment income / (loss)	0.1	0.2	0.1	0.6
Interest expense	(28.9)	(33.1)	(90.3)	(95.8)
Charge for early retirement of debt	(2.1)	(0.1)	(2.1)	0.0
Other expense	(0.5)	(0.1)	(1.2)	(1.2)
Total other expense, net	(31.4)	(33.1)	(93.5)	(96.4)
Earnings / (loss) before income taxes	8.9	57.4	72.5	(87.1)
Income tax expense / (benefit)	0.3	(41.0)	13.5	29.7
Net income / (loss)	8.6	98.4	59.0	(116.8)
THE DAYTON POWER AND LIGHT COMPANY [Member]
Revenues	389.2	454.9	1,202.6	1,252.5
Cost of revenues:
Fuel	69.0	84.5	188.9	227.4
Purchased power	142.5	152.4	452.3	457.3
Total cost of revenues	211.5	236.9	641.2	684.7
Gross margin	177.7	218.0	561.4	567.8
Operating expenses:
Operation and maintenance	94.5	85.9	261.6	265.9
Depreciation and amortization	34.6	36.4	103.5	108.2
General taxes	20.1	20.2	65.0	67.1
Other	0.0	0.0	0.4	0.0
Total operating expenses	149.2	142.5	430.5	441.2
Operating income	28.5	75.5	130.9	126.6
Other income / (expense), net
Investment income / (loss)	0.0	0.2	0.2	0.6
Interest expense	(6.9)	(9.4)	(24.6)	(25.5)
Charge for early retirement of debt	(5.0)	0.0	(5.0)	0.0
Other expense	(0.3)	0.0	(0.6)	(2.1)
Total other expense, net	(12.2)	(9.2)	(30.0)	(27.0)
Earnings / (loss) before income taxes	16.3	66.3	100.9	99.6
Income tax expense / (benefit)	0.8	13.1	25.0	23.1
Net income / (loss)	15.5	53.2	75.9	76.5
Dividends on preferred stock	0.3	0.3	0.7	0.7
Income attributable to common stock	$ 15.2	$ 52.9	$ 75.2	$ 75.8