Condensed Consolidated Statements of Operations - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Revenues	$ 328.3	$ 365.9	$ 692.3	$ 848.8
Cost of revenues:
Fuel	60.2	54.4	127.1	130.8
Purchased power	96.9	120.3	218.8	313.6
Total cost of revenues	157.1	174.7	345.9	444.4
Gross margin	171.2	191.2	346.4	404.4
Operating expenses:
Operation and maintenance	77.2	84.6	165.7	171.6
Depreciation and amortization	36.0	33.3	69.4	67.1
General taxes	21.6	22.0	42.6	45.0
Impairment of Long-Lived Assets Held-for-use	235.5	0.0	235.5	0.0
Other	0.0	(0.2)	0.1	0.2
Total operating expenses	370.3	139.7	513.3	283.9
Operating income / (loss)	(199.1)	51.5	(166.9)	120.5
Other income / (expense), net
Investment income	0.3	0.2	0.2	0.0
Interest expense	(26.0)	(30.9)	(52.3)	(61.4)
Charge for early retirement of debt	0.0	0.0	(2.6)	0.0
Other expense	(0.3)	(0.2)	(0.7)	(0.7)
Total other expense, net	(26.0)	(30.9)	(55.4)	(62.1)
Earnings / (loss) from continuing operations before income taxes	(225.1)	20.6	(222.3)	58.4
Income tax expense / (benefit) from continuing operations	(88.3)	5.8	(87.7)	16.8
Net income / (loss) from continuing operations	(136.8)	14.8	(134.6)	41.6
Income / (loss) from discontinued operations	0.0	1.6	(0.7)	5.2
Gain from disposal of discontinued operations	0.0	0.0	49.2	0.0
Income tax expense / (benefit) for discontinued operations	0.0	(5.3)	18.9	(3.6)
Discontinued operations	0.0	6.9	29.6	8.8
Net income / (loss)	(136.8)	21.7	(105.0)	50.4
THE DAYTON POWER AND LIGHT COMPANY [Member]
Revenues	313.7	352.1	662.9	813.4
Cost of revenues:
Fuel	55.6	50.6	118.5	119.9
Purchased power	96.7	120.1	218.0	309.8
Total cost of revenues	152.3	170.7	336.5	429.7
Gross margin	161.4	181.4	326.4	383.7
Operating expenses:
Operation and maintenance	76.4	83.7	162.5	168.1
Depreciation and amortization	36.8	34.2	71.1	68.9
General taxes	21.1	21.4	41.6	43.9
Impairment of Long-Lived Assets Held-for-use	857.1	0.0	857.1	0.0
Gain on termination of contract	0.0	0.0	(27.7)	0.0
Other	0.1	0.0	0.2	0.4
Total operating expenses	991.5	139.3	1,104.8	281.3
Operating income / (loss)	(830.1)	42.1	(778.4)	102.4
Other income / (expense), net
Investment income	0.3	0.3	0.2	0.2
Interest expense	(5.4)	(9.0)	(10.7)	(17.7)
Other expense	(0.1)	(0.1)	(0.3)	(0.3)
Total other expense, net	(5.2)	(8.8)	(10.8)	(17.8)
Earnings / (loss) from continuing operations before income taxes	(835.3)	33.3	(789.2)	84.6
Income tax expense / (benefit) from continuing operations	(303.7)	9.4	(291.3)	24.2
Net income / (loss)	(531.6)	23.9	(497.9)	60.4
Dividends on preferred stock	0.2	0.2	0.4	0.4
Income / (loss) attributable to common stock	$ (531.8)	$ 23.7	$ (498.3)	$ 60.0