Consolidated Statements of Results of Operations (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues	$ 479.2	$ 441.2	$ 1,329.6	$ 1,210.7
Cost of revenues:
Fuel	85.1	99.7	235.9	274.0
Purchased power	153.7	113.1	466.2	282.6
Amortization of intangibles	0.3	1.8	0.9	5.3
Total cost of revenues	239.1	214.6	703.0	561.9
Gross margin	240.1	226.6	626.6	648.8
Operating expenses:
Operation and maintenance	94.0	97.3	294.7	297.4
Depreciation and amortization	34.5	33.9	103.7	99.0
Taxes, Miscellaneous	21.2	19.4	70.3	60.8
Goodwill Impairment			135.8
Fixed asset impairment			11.5
Total operating expenses	149.7	150.6	616.0	457.2
Operating income	90.4	76.0	10.6	191.6
Other income / (expense), net:
Investment income	0.2	(0.5)	0.6	1.2
Interest expense	(33.1)	(31.0)	(95.8)	(91.1)
Other deductions	(0.1)		(2.5)	(4.9)
Total other income / (expense), net	(33.0)	(31.5)	(97.7)	(94.8)
Earnings before income tax	57.4	44.5	(87.1)	96.8
Income tax expense	(41.0)	11.3	29.7	20.8
Net income	98.4	33.2	(116.8)	76.0
THE DAYTON POWER AND LIGHT COMPANY [Member]
Revenues	454.9	413.1	1,252.5	1,141.5
Cost of revenues:
Fuel	84.5	96.7	227.4	269.6
Purchased power	152.4	110.4	457.3	276.7
Total cost of revenues	236.9	207.1	684.7	546.3
Gross margin	218.0	206.0	567.8	595.2
Operating expenses:
Operation and maintenance	85.9	87.6	265.9	270.4
Depreciation and amortization	36.4	35.8	108.2	104.5
Taxes, Miscellaneous	20.2	18.2	67.1	57.4
Total operating expenses	142.5	141.6	441.2	432.3
Operating income	75.5	64.4	126.6	162.9
Other income / (expense), net:
Investment income	0.2	0.1	0.6	1.7
Interest expense	(9.4)	(10.4)	(25.5)	(29.7)
Other deductions			(2.1)	(4.3)
Total other income / (expense), net	(9.2)	(10.3)	(27.0)	(32.3)
Earnings before income tax	66.3	54.1	99.6	130.6
Income tax expense	13.1	13.2	23.1	29.2
Net income	53.2	40.9	76.5	101.4
Dividends on preferred stock	0.3	0.2	0.7	0.6
Earnings on common stock	$ 52.9	$ 40.7	$ 75.8	$ 100.8