Business Segments (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Dec. 31, 2012

Dec. 31, 2014

Dec. 31, 2013

Business Segments [Abstract]

Financial Reporting for Reportable Business Segments

$ in millions	Utility		Competitive Retail		Other		Adjustments and Eliminations		DPL Consolidated
For the three months ended March 31, 2015
Revenues from external customers	$	350.6	$	122.3	$	21.6	$	-	$	494.5
Intersegment revenues		110.7		-		1.6		(112.3)		-
Total revenues		461.3		122.3		23.2		(112.3)		494.5
Fuel		69.3		-		7.1		-		76.4
Purchased power		189.7		111.7		4.2		(111.4)		194.2
Gross margin	$	202.3	$	10.6	$	11.9	$	(0.9)	$	223.9
Depreciation and amortization	$	34.7	$	0.3	$	-	$	-	$	35.0
Interest expense		8.7		-		21.9		(0.1)		30.5
Income tax expense (benefit)		14.8		1.3		(3.4)		-		12.7
Net income / (loss)		36.5		1.6		(9.4)		-		28.7
Cash capital expenditures	$	33.1	$	0.2	$	0.4	$	-	$	33.7
At March 31, 2015
Total assets	$	3,289.7	$	72.3	$	1,476.1	$	(1,284.2)	$	3,553.9

$ in millions	Utility		Competitive Retail		Other		Adjustments and Eliminations		DPL Consolidated
For the three months ended March 31, 2014
Revenues from external customers	$	292.6	$	148.4	$	19.2	$	0.1	$	460.3
Intersegment revenues		139.5		-		1.0		(140.5)		-
Total revenues		432.1		148.4		20.2		(140.4)		460.3
Fuel		84.3		-		5.7		-		90.0
Purchased power		168.0		140.2		5.4		(139.5)		174.1
Amortization of intangibles		-		-		0.3		-		0.3
Gross margin	$	179.8	$	8.2	$	8.8	$	(0.9)	$	195.9
Depreciation and amortization	$	36.5	$	0.1	$	(1.4)	$	0.1	$	35.3
Goodwill impairment		-		-		135.8		-		135.8
Fixed-asset impairment		-		-		11.5		-		11.5
Interest expense		7.8		0.1		23.1		(0.2)		30.8
Income tax expense (benefit)		4.0		(0.7)		95.4		0.1		98.8
Net income / (loss)		9.4		(1.4)		(257.0)		-		(249.0)
Cash capital expenditures	$	27.4	$	-	$	1.0	$	-	$	28.4
At December 31, 2014
Total assets	$	3,338.7	$	94.9	$	1,440.1	$	(1,295.9)	$	3,577.8

$ in millions	Utility		Competitive Retail		Other		Adjustments and Eliminations		DPL Consolidated
Year ended December 31, 2012
Revenues from external customers	$	1,138.4	$	493.1	$	36.9	$	-	$	1,668.4
Intersegment revenues		393.4		-		3.4		(396.8)		-
Total revenues		1,531.8		493.1		40.3		(396.8)		1,668.4
Fuel		354.9		-		7.0		-		361.9
Purchased power		309.5		424.5		1.5		(393.4)		342.1
Amortization of intangibles		-		-		95.1		-		95.1
Gross margin (a)	$	867.4	$	68.6	$	(63.3)	$	(3.4)	$	869.3
Depreciation and amortization	$	141.3	$	0.4	$	(16.3)	$	-	$	125.4
Goodwill impairment (Note 5)	$	-	$	-	$	1,817.2	$	-	$	1,817.2
Fixed asset impairment	$	80.8	$	-	$	(80.8)	$	-	$	-
Interest expense	$	39.1	$	0.6	$	83.9	$	(0.7)	$	122.9
Income tax expense / (benefit)	$	55.1	$	18.1	$	(25.5)	$	-	$	47.7
Net income / (loss)	$	91.2	$	22.8	$	(1,725.4)	$	(118.4)	$	(1,729.8)
Cash capital expenditures	$	195.5	$	-	$	2.6	$	-	$	198.1
Total assets (end of year)	$	3,464.2	$	99.2	$	683.9	$	-	$	4,247.3

$ in millions	Utility		Competitive Retail		Other		Adjustments and Eliminations		DPL Consolidated
Year ended December 31, 2014
Revenues from external customers	$	1,181.2	$	533.6	$	48.2	$	-	$	1,763.0
Intersegment revenues		487.1		-		5.5		(492.6)		-
Total revenues		1,668.3		533.6		53.7		(492.6)		1,763.0
Fuel		314.9		-		(10.4)		-		304.5
Purchased power		582.4		491.8		7.5		(489.1)		592.6
Amortization of intangibles		-		-		1.2		-		1.2
Gross margin (a)	$	771.0	$	41.8	$	55.4	$	(3.5)	$	864.7
Depreciation and amortization	$	144.8	$	0.8	$	(5.8)	$	-	$	139.8
Goodwill impairment (Note 5)	$	-	$	-	$	135.8	$	-	$	135.8
Fixed asset impairment	$	-	$	-	$	11.5	$	-	$	11.5
Interest expense	$	33.9	$	0.5	$	92.9	$	(0.7)	$	126.6
Income tax expense / (benefit)	$	39.7	$	2.0	$	(23.7)	$	-	$	18.0
Net income / (loss)	$	115.0	$	3.2	$	(192.8)	$	-	$	(74.6)
Cash capital expenditures	$	114.2	$	2.5	$	1.4	$	-	$	118.1
Total assets (end of year)	$	3,338.7	$	94.9	$	1,440.1	$	(1,295.9)	$	3,577.8

$ in millions	Utility		Competitive Retail		Other		Adjustments and Eliminations		DPL Consolidated
Year ended December 31, 2013
Revenues from external customers	$	1,098.2	$	511.6	$	27.1	$	-	$	1,636.9
Intersegment revenues		453.3		-		4.0		(457.3)		-
Total revenues		1,551.5		511.6		31.1		(457.3)		1,636.9
Fuel		362.5		-		4.2		-		366.7
Purchased power		381.9		459.7		1.1		(453.7)		389.0
Amortization of intangibles		-		-		7.1		-		7.1
Gross margin (a)	$	807.1	$	51.9	$	18.7	$	(3.6)	$	874.1
Depreciation and amortization	$	140.2	$	0.6	$	(7.9)	$	-	$	132.9
Goodwill impairment (Note 5)	$	-	$	-	$	306.3	$	-	$	306.3
Fixed asset impairment	$	86.0	$	-	$	(59.8)	$	-	$	26.2
Interest expense	$	37.2	$	0.5	$	86.9	$	(0.6)	$	124.0
Income tax expense / (benefit)	$	18.6	$	4.2	$	(0.5)	$	-	$	22.3
Net income / (loss)	$	83.6	$	6.6	$	(312.2)	$	-	$	(222.0)
Cash capital expenditures	$	122.1	$	-	$	2.3	$	-	$	124.4
Total assets (end of year)	$	3,313.1	$	105.0	$	1,675.8	$	(1,372.4)	$	3,721.5