Pension and Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2015

Schedule of Net Periodic Benefit Cost / (Income)

The net periodic benefit cost of the pension and postretirement benefit plans for the three and six months ended June 30, 2015 and 2014 was:

Net Periodic Benefit Cost	Pension						Postretirement
	Three months ended						Three months ended
	June 30,						June 30,
$ in millions	2015			2014			2015			2014
Service cost	$	1.8		$	1.5		$	—		$	—
Interest cost	4.3			4.4			0.1			0.2
Expected return on plan assets	(5.6		)	(5.6		)	—			—
Amortization of unrecognized:
Prior service cost	0.5			0.3			—			—
Actuarial loss / (gain)	1.4			0.8			(0.1		)	(0.2		)
Net periodic benefit cost	$	2.4		$	1.4		$	—		$	—

Net Periodic Benefit Cost	Pension						Postretirement
	Six months ended						Six months ended
	June 30,						June 30,
$ in millions	2015			2014			2015			2014
Service cost	$	3.6		$	3.0		$	—		$	0.1
Interest cost	8.6			8.8			0.3			0.4
Expected return on plan assets	(11.3		)	(11.4		)	—			(0.1		)
Amortization of unrecognized:
Prior service cost	1.0			0.7			—			—
Actuarial loss / (gain)	2.9			1.7			(0.2		)	(0.3		)
Net periodic benefit cost	$	4.8		$	2.8		$	0.1		$	0.1

Estimated Future Benefit Payments and Medicare Part D Reimbursements

Benefit payments and Medicare Part D reimbursements, which reflect future service, are estimated to be paid as follows:

$ in millions	Pension		Postretirement
2015	$	12.4	$	0.9
2016	25.2		1.8
2017	25.7		1.7
2018	26.3		1.6
2019	26.7		1.5
2020 - 2024	137.0		6.1

THE DAYTON POWER AND LIGHT COMPANY [Member]

Net Periodic Benefit Cost / (Income)

The net periodic benefit cost of the pension and postretirement benefit plans for the three and six months ended June 30, 2015 and 2014 was:

Net Periodic Benefit Cost	Pension						Postretirement
	Three months ended						Three months ended
	June 30,						June 30,
$ in millions	2015			2014			2015			2014
Service cost	$	1.7		$	1.4		$	—		$	0.1
Interest cost	4.3			4.3			0.2			0.2
Expected return on plan assets	(5.5		)	(5.6		)	—			(0.1		)
Amortization of unrecognized:
Prior service cost	0.8			0.7			—			—
Actuarial loss / (gain)	2.4			1.6			(0.1		)	(0.1		)
Net periodic benefit cost	$	3.7		$	2.4		$	0.1		$	0.1

Net Periodic Benefit Cost	Pension						Postretirement
	Six months ended						Six months ended
	June 30,						June 30,
$ in millions	2015			2014			2015			2014
Service cost	$	3.5		$	2.9		$	—		$	0.1
Interest cost	8.6			8.7			0.4			0.4
Expected return on plan assets	(11.2		)	(11.3		)	—			(0.1		)
Amortization of unrecognized:
Prior service cost	1.6			1.4			—			—
Actuarial loss / (gain)	4.8			3.2			(0.3		)	(0.3		)
Net periodic benefit cost	$	7.3		$	4.9		$	0.1		$	0.1

Estimated Future Benefit Payments and Medicare Part D Reimbursements

Benefit payments and Medicare Part D reimbursements, which reflect future service, are estimated to be paid as follows:

$ in millions	Pension		Postretirement
2015	$	12.4	$	0.9
2016	25.2		1.8
2017	25.7		1.7
2018	26.3		1.6
2019	26.7		1.5
2020 - 2024	137.0		6.1