Business Segments (Tables)

3 Months Ended

Sep. 30, 2011

Business Segments [Abstract]

Financial Reporting for Reportable Business Segments

										Adjustments
				Competitive						and				DPL
$ in millions		Utility		Retail			Other			Eliminations				Consolidated
Three Months Ended September 30, 2011
Revenues from external customers	$	376.6	$	118.6		$	16.6			$	-		$	511.8
Intersegment revenues		90.2			-		1.1			(91.3		)		-
Total revenues	$	466.8	$	118.6		$	17.7		$	(91.3		)	$	511.8
Fuel		124.0			-		5.0				-			129.0
Purchased power		95.6		101.4			1.5			(90.2		)		108.3
Gross margin	$	247.2	$	17.2		$	11.2			$	(1.1	)	$	274.5
Depreciation and amortization	$	33.8		$	0.1	$	1.9			$	-		$	35.8
Interest expense		9.3			0.1		7.6				(0.2	)		16.8
Income tax expense (benefit)		26.8			4.2		(2.4	)			-			28.6
Net income (loss)		63.9			7.8		(6.2	)			1.6			67.1
Cash capital expenditures		49.1			-		0.8				-			49.9
Three Months Ended September 30, 2010
Revenues from external customers	$	411.1	$	84.5		$	21.3			$	-		$	516.9
Intersegment revenues		75.9			-		1.1			(77.0		)		-
Total revenues	$	487.0	$	84.5		$	22.4		$	(77.0		)	$	516.9
Fuel		97.4			-		6.9				-			104.3
Purchased power		116.4		75.9			2.6			(75.9		)		119.0
Gross margin	$	273.2		$	8.6	$	12.9			$	(1.1	)	$	293.6
Depreciation and amortization	$	30.4		$	-	$	1.8			$	-		$	32.2
Interest expense		9.4			-		8.3				(0.1	)		17.6
Income tax expense (benefit)		39.4			1.4		(0.4	)			-			40.4
Net income (loss)		83.2			4.7		(4.2	)			2.7			86.4
Cash capital expenditures		38.8			-		(0.2	)			-			38.6