Business Segments (Tables)

3 Months Ended

6 Months Ended

Jun. 30, 2012

Jun. 30, 2012

Business Segments [Abstract]

Financial Reporting for Reportable Business Segments

Successor
$ in millions	Utility		Competitive Retail			Other			Adjustments and Eliminations			DPL Consolidated
Three Months Ended June 30, 2012
Revenues from external customers	$	261.7	$	109.9		$	10.4		$	-		$	382.0
Intersegment revenues		84.9		-			0.8			(85.7	)		-
Total revenues		346.6		109.9			11.2			(85.7	)		382.0
Fuel		68.6		-			0.3			-			68.9
Purchased power		69.3		95.5			0.4			(84.9	)		80.3
Amortization of intangibles		-		-			19.2			-			19.2
Gross margin	$	208.7	$	14.4		$	(8.7	)	$	(0.8	)	$	213.6
Depreciation and amortization	$	36.1	$	(0.1	)	$	(4.9	)	$	-		$	31.1
Interest expense		9.4		0.1			23.1			(0.2	)		32.4
Income tax expense (benefit)		15.6		6.5			(9.7	)		-			12.4
Net income (loss)		31.3		1.5			(20.4	)		-			11.9
Cash capital expenditures		56.3		0.1			0.1			-			56.5
Total assets		3,488.5		76.5			2,443.8			-			6,008.8
Predecessor
Three Months Ended June 30, 2011
Revenues from external customers	$	315.9	$	102.0		$	15.4		$	-		$	433.3
Intersegment revenues		81.0		-			1.0			(82.0	)		-
Total revenues		396.9		102.0			16.4			(82.0	)		433.3
Fuel		89.1		-			3.0			-			92.1
Purchased power		104.4		89.5			0.7			(81.0	)		113.6
Gross margin	$	203.4	$	12.5		$	12.7		$	(1.0	)	$	227.6
Depreciation and amortization	$	33.4	$	-		$	1.7		$	-		$	35.1
Interest expense		9.7		0.1			7.9			(0.1	)		17.6
Income tax expense (benefit)		15.5		3.3			(2.5	)		-			16.3
Net income (loss)		30.8		5.7			(3.7	)		(1.1	)		31.7
Cash capital expenditures		48.4		-			-			-			48.4
Year Ended December 31, 2011
Total assets		3,525.7		69.9			2,501.5			-			6,097.1

Successor
$ in millions	Utility		Competitive Retail		Other			Adjustments and Eliminations			DPL Consolidated
Six Months Ended June 30, 2012
Revenues from external customers	$	574.5	$	222.0	$	19.5		$	-		$	816.0
Intersegment revenues		171.7		-		1.7			(173.4	)		-
Total revenues		746.2		222.0		21.2			(173.4	)		816.0
Fuel		164.2		-		2.1			-			166.3
Purchased power		154.2		192.2		0.4			(171.7	)		175.1
Amortization of intangibles		-		-		47.0			-			47.0
Gross margin	$	427.8	$	29.8	$	(28.3	)	$	(1.7	)	$	427.6
Depreciation and amortization	$	70.8	$	0.1	$	(8.4	)	$	-		$	62.5
Interest expense		19.0		0.3		43.1			(0.4	)		62.0
Income tax expense (benefit)		32.9		9.9		(22.7	)		-			20.1
Net income (loss)		69.4		7.5		(43.3	)		-			33.6
Cash capital expenditures		109.5		0.5		0.5			-			110.5
Total assets		3,488.5		76.5		2,443.8			-			6,008.8
Predecessor
Six Months Ended June 30, 2011
Revenues from external customers	$	690.6	$	196.0	$	27.3		$	-		$	913.9
Intersegment revenues		156.1		-		2.0			(158.1	)		-
Total revenues		846.7		196.0		29.3			(158.1	)		913.9
Fuel		187.7		-		4.2			-			191.9
Purchased power		222.2		167.2		1.1			(156.1	)		234.4
Gross margin	$	436.8	$	28.8	$	24.0		$	(2.0	)	$	487.6
Depreciation and amortization	$	66.5	$	0.1	$	3.6		$	-		$	70.2
Interest expense		19.4		0.1		15.1			(0.1	)		34.5
Income tax expense (benefit)		42.5		9.9		(11.3	)		-			41.1
Net income (loss)		83.5		11.8		(18.5	)		(1.6	)		75.2
Cash capital expenditures		90.8		-		0.6			-			91.4
Year Ended December 31, 2011
Total assets		3,525.7		69.9		2,501.5			-			6,097.1