Consolidated Statements of Results of Operations (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues	$ 390.1	$ 374.9	$ 850.4	$ 769.5
Cost of revenues:
Fuel	60.8	85.6	150.8	174.3
Purchased power	138.4	74.2	312.5	169.5
Amortization of intangibles	0.3	1.8	0.6	3.5
Total cost of revenues	199.5	161.6	463.9	347.3
Gross margin	190.6	213.3	386.5	422.2
Operating expenses:
Operation and maintenance	96.0	100.9	200.7	200.1
Depreciation and amortization	33.9	33.3	69.2	65.1
Taxes, Miscellaneous	21.5	20.5	49.1	41.4
Goodwill Impairment			135.8
Fixed asset impairment			11.5
Total operating expenses	151.4	154.7	466.3	306.6
Operating income	39.2	58.6	(79.8)	115.6
Other income / (expense), net:
Investment income		1.5	0.4	1.7
Interest expense	(31.9)	(29.6)	(62.7)	(60.1)
Other deductions	(1.6)	(4.2)	(2.4)	(4.9)
Total other income / (expense), net	(33.5)	(32.3)	(64.7)	(63.3)
Earnings before income tax	5.7	26.3	(144.5)	52.3
Income tax expense	(28.1)	3.5	70.7	9.5
Net income	33.8	22.8	(215.2)	42.8
THE DAYTON POWER AND LIGHT COMPANY [Member]
Revenues	365.5	351.9	797.6	728.4
Cost of revenues:
Fuel	58.6	84.7	142.9	172.9
Purchased power	136.9	72.3	304.9	166.3
Total cost of revenues	195.5	157.0	447.8	339.2
Gross margin	170.0	194.9	349.8	389.2
Operating expenses:
Operation and maintenance	84.6	91.5	180.0	182.8
Depreciation and amortization	35.3	35.1	71.8	68.7
Taxes, Miscellaneous	20.5	19.4	46.9	39.2
Total operating expenses	140.4	146.0	298.7	290.7
Operating income	29.6	48.9	51.1	98.5
Other income / (expense), net:
Investment income	0.1	1.5	0.4	1.6
Interest expense	(8.3)	(10.0)	(16.1)	(19.3)
Other deductions	(1.5)	(3.7)	(2.1)	(4.3)
Total other income / (expense), net	(9.7)	(12.2)	(17.8)	(22.0)
Earnings before income tax	19.9	36.7	33.3	76.5
Income tax expense	6.0	6.4	10.0	16.0
Net income	13.9	30.3	23.3	60.5
Dividends on preferred stock	0.2	0.2	0.4	0.4
Earnings on common stock	$ 13.7	$ 30.1	$ 22.9	$ 60.1