Goodwill And Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets

$ in millions	December 31, 2013						December 31, 2012
	Gross Balance		Accumulated Amortization		Net Balance		Gross Balance		Accumulated Amortization		Net Balance
Subject to Amortization
Electric Security Plan (a)	$	-	$	-	$	-	$	87.0	$	(87.0)	$	-
Customer Contracts (b)		27.0		(25.8)		1.2		28.0		(19.7)		8.3
Customer Relationships (c)		31.8		(4.6)		27.2		31.8		(1.1)		30.7
Other (d)		8.4		(0.1)		8.3		5.3		(0.3)		5.0
		67.2		(30.5)		36.7		152.1		(108.1)		44.0
Not subject to Amortization
Trademark/Trade name (e)		6.1		-		6.1		6.1		-		6.1
Total intangibles	$	73.3	$	(30.5)	$	42.8	$	158.2	$	(108.1)	$	50.1

Intangible assets acquired during period

$ in millions	Amount		Subject to Amortization/ Indefinite-lived	Weighted Average Amortization Period (years)	Amortization Method
Renewable Energy Certificates	$	3.9	Subject to amortization	Various	As Utilized

Estimated Amortization Expense

	Estimated amortization expense
	Years ending December 31,
$ in millions	2014			2015		2016		2017	2018
Customer contracts	$	1.2	$	-	$	-	$	-	$	-
Customer relationships		3.8		3.8		3.1		2.7		2.3
Renewable Energy Certificates		3.8		0.3		-		-		-
	$	8.8	$	4.1	$	3.1	$	2.7	$	2.3

Changes in Goodwill

$ in millions		DP&L Reporting Unit		DPLER Reporting Unit		Total
Balance at December 31, 2011
Goodwill	$	2,440.5	$	135.8	$	2,576.3
Accumulated impairment losses		-		-		-
Net balance at December 31, 2011	$	2,440.5	$	135.8	$	2,576.3
Goodwill impairments during 2012	$	(1,817.2)	$	-	$	(1,817.2)
Balance at December 31, 2012
Goodwill	$	2,440.5	$	135.8	$	2,576.3
Accumulated impairment losses		(1,817.2)		-		(1,817.2)
Net balance at December 31, 2012	$	623.3	$	135.8	$	759.1
Goodwill impairments during 2013	$	(306.3)	$	-	$	(306.3)
Balance at December 31, 2013
Goodwill	$	2,440.5	$	135.8	$	2,576.3
Accumulated impairment losses		(2,123.5)		-		(2,123.5)
Net balance at December 31, 2013	$	317.0	$	135.8	$	452.8