Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net income	$ 1.9	$ 42.1
Derivative activity:
Change in derivative fair value, net of income tax	(0.3)	(0.3)
Reclassification of earnings, net of income tax	(0.3)	(0.2)
Total change in fair value of derivatives	(0.6)	(0.5)
Pension and postretirement activity:
Reclassification to earnings, net of income tax	0.3	0.1
Total change in unfunded pension obligation	0.3	0.1
Other comprehensive loss	(0.3)	(0.4)
Net comprehensive income	1.6	41.7
THE DAYTON POWER AND LIGHT COMPANY [Member]
Net income	11.7	29.0
Derivative activity:
Change in derivative fair value, net of income tax	(0.3)	(0.2)
Reclassification of earnings, net of income tax	(0.1)	(0.1)
Total change in fair value of derivatives	(0.4)	(0.3)
Pension and postretirement activity:
Reclassification to earnings, net of income tax	0.8	0.7
Total change in unfunded pension obligation	0.8	0.7
Other comprehensive loss	0.4	0.4
Net comprehensive income	$ 12.1	$ 29.4