Pension and Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2013

Net Periodic Benefit Cost / (Income)

Net Periodic Benefit Cost / (Income)	Pension				Postretirement
	Three months ended March 31,		Three months ended March 31,		Three months ended March 31,		Three months ended March 31,
$ in millions	2013		2012		2013		2012
Service cost	$	1.8	$	1.5	$	0.1	$	0.1
Interest cost		3.9		4.3		0.2		0.3
Expected return on assets (a)		(5.9)		(5.7)		(0.1)		(0.1)
Amortization of unrecognized:
Actuarial loss / (gain)		1.2		1.2		(0.1)		(0.2)
Prior service cost		0.4		0.4		-		-
Net periodic benefit cost / (income)	$	1.4	$	1.7	$	0.1	$	0.1

Estimated Future Benefit Payments and Medicare Part D Reimbursements

Benefit payments, which reflect future service, are expected to be paid as follows:
Estimated Future Benefit Payments and Medicare Part D Reimbursements
$ in millions	Pension		Postretirement
2013	$	16.6	$	1.7
2014		22.5		2.2
2015		23.0		2.0
2016		23.3		1.9
2017		23.7		1.7
2018 - 2022		124.4		6.8

DP&L [Member]

Net Periodic Benefit Cost / (Income)

Net Periodic Benefit Cost / (Income)	Pension				Postretirement
	Three months ended March 31,		Three months ended March 31,		Three months ended March 31,		Three months ended March 31,
$ in millions	2013		2012		2013		2012
Service cost	$	1.8	$	1.5	$	0.1	$	0.1
Interest cost		3.9		4.3		0.2		0.3
Expected return on assets (a)		(5.9)		(5.7)		(0.1)		(0.1)
Amortization of unrecognized:
Actuarial loss / (gain)		2.3		2.7		(0.1)		(0.2)
Prior service cost		0.7		0.8		-		-
Net periodic benefit cost / (income)	$	2.8	$	3.6	$	0.1	$	0.1

Estimated Future Benefit Payments and Medicare Part D Reimbursements

Benefit payments, which reflect future service, are expected to be paid as follows:
Estimated Future Benefit Payments and Medicare Part D Reimbursements
$ in millions	Pension		Postretirement
2013	$	16.6	$	1.7
2014		22.5		2.2
2015		23.0		2.0
2016		23.3		1.9
2017		23.7		1.7
2018 - 2022		124.4		6.8