Supplemental Financial Information (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Supplemental Financial Information

	At		At
	March 31,		December 31,
$ in millions	2013		2012
Accounts receivable, net:
Unbilled revenue	$	65.3	$	75.2
Customer receivables		107.5		98.2
Amounts due from partners in jointly owned plants		15.3		19.7
Coal sales		-		1.6
Other		3.1		14.6
Provision for uncollectible accounts		(1.1)		(1.1)
Total accounts receivable, net	$	190.1	$	208.2
Inventories, at average cost:
Fuel and limestone	$	72.0	$	67.3
Plant materials and supplies		40.6		41.0
Other		1.9		1.8
Total inventories, at average cost	$	114.5	$	110.1

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

$ in millions	Gains / (losses) on Available-for-sale securities		Gains / (losses) on Cash Flow Hedges		Change in Unfunded Pension Obligation		Total
Balance January 1, 2013	$	0.4	$	(2.5)	$	(1.8)	$	(3.9)
Other comprehensive income before reclassifications		0.2		1.2		-		1.4
Amounts reclassified from accumulated other comprehensive income / (loss)		0.1		0.2		0.3		0.6
Net current period other comprehensive income		0.3		1.4		0.3		2.0
Balance March 31, 2013	$	0.7	$	(1.1)	$	(1.5)	$	(1.9)

Reclassification out of Accumulated Other Comprehensive Income

Details about Accumulated Other Comprehensive Income / (Loss) components	Affected line item in the Condensed Consolidated Statement of Operations	Three months ended March 31,
$ in millions		2013
Gains and losses on Available-for-sale securities activity (Note 8):
	Other income / (deductions)	$	0.1
	Total before income taxes		0.1
	Tax expense		-
	Net of income taxes		0.1
Gains and losses on cash flow hedges: (Note 9)
	Revenue		(0.5)
	Purchased power		0.8
	Total before income taxes		0.3
	Tax expense		(0.1)
	Net of income taxes		0.2
Amortization of defined benefit pension items: (Note 7)
	Reclassification to Other income / (deductions)		-
	Prior service cost for the period (1)		-
	Net loss for the period (1)		-
	Total before income taxes		-
	Tax benefit		0.3
	Net of income taxes		0.3
Total reclassifications for the period, net of income taxes		$	0.6

DP&L [Member]

Schedule of Supplemental Financial Information

	At		At
	March 31,		December 31,
$ in millions	2013		2012
Accounts receivable, net:
Unbilled revenue	$	41.6	$	48.1
Customer receivables		68.3		62.0
Amounts due from partners in jointly owned plants		15.3		19.7
Coal sales		-		1.6
Other		24.0		29.5
Provision for uncollectible accounts		(1.0)		(0.9)
Total accounts receivable, net	$	148.2	$	160.0
Inventories, at average cost:
Fuel and limestone	$	71.9	$	67.3
Plant materials and supplies		39.4		39.8
Other		1.9		1.8
Total inventories, at average cost	$	113.2	$	108.9

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

$ in millions	Gains / (losses) on Available-for-sale securities		Gains / (losses) on Cash Flow Hedges		Change in Unfunded Pension Obligation		Total
Balance January 1, 2013	$	1.0	$	2.6	$	(42.3)	$	(38.7)
Other comprehensive income / (loss) before reclassifications		0.2		(2.6)		0.9		(1.5)
Amounts reclassified from accumulated other comprehensive income / (loss)		0.1		(0.2)		-		(0.1)
Net current period other comprehensive income / (loss)		0.3		(2.8)		0.9		(1.6)
Balance March 31, 2013	$	1.3	$	(0.2)	$	(41.4)	$	(40.3)

Reclassification out of Accumulated Other Comprehensive Income

Details about Accumulated Other Comprehensive Income / (Loss) components	Affected line item in the Condensed Consolidated Statement of Operations	Three months ended March 31,
$ in millions		2013
Gains and losses on Available-for-sale securities activity (Note 8):
	Other income / (deductions)	$	0.2
	Total before income taxes		0.2
	Tax expense		(0.1)
	Net of income taxes		0.1
Gains and losses on cash flow hedges: (Note 9)
	Interest expense		(0.6)
	Revenue		(0.5)
	Purchased power		1.1
	Total before income taxes		-
	Tax expense		(0.2)
	Net of income taxes		(0.2)
Total reclassifications for the period, net of income taxes		$	(0.1)