Redeemable Preferred Stock (Tables)

12 Months Ended

Dec. 31, 2014

Redeemable Preferred Stock [Abstract]

Preferred Shares Outstanding

		December 31, 2014 and 2013				Carrying Value (a) ($ in millions)
	Preferred Stock Rate	Redemption price ($ per share)		Shares Outstanding		December 31, 2014		December 31, 2013
DP&L Series A	3.75%	$	102.50		93,280	$	7.4	$	7.4
DP&L Series B	3.75%	$	103.00		69,398		5.6		5.6
DP&L Series C	3.90%	$	101.00		65,830		5.4		5.4
Total					228,508	$	18.4	$	18.4