Debt (Tables)

9 Months Ended

Sep. 30, 2018

Debt Instrument [Line Items]

Long-term Debt

The following table summarizes DPL's outstanding long-term debt.

	Interest		September 30,			December 31,
$ in millions	Rate	Maturity	2018			2017
Term loan - rates from 3.57% - 4.82% (a) and 4.01% - 4.60% (b)		2022	$	437.2		$	440.6
Tax-exempt First Mortgage Bonds - rates from 2.50% - 2.72% (a) and 1.52% - 1.92% (b)		2020	140.0			200.0
U.S. Government note	4.2%	2061	17.7			17.8
Unamortized deferred financing costs			(6.7		)	(9.8		)
Unamortized long-term debt discounts and premiums, net			(1.5		)	(2.0		)
Total long-term debt at consolidated subsidiary			586.7			646.6
Bank term loan - rates from 3.82% - 3.90% (a) and 3.02% - 4.10% (b)		2020	—			70.0
Senior unsecured notes	6.75%	2019	99.0			200.0
Senior unsecured notes	7.25%	2021	780.0			780.0
Note to DPL Capital Trust II (c)	8.125%	2031	15.6			15.6
Unamortized deferred financing costs			(4.8		)	(6.9		)
Unamortized long-term debt discounts and premiums, net			(0.5		)	(0.5		)
Total long-term debt			1,476.0			1,704.8
Less: current portion			(4.6		)	(4.6		)
Long-term debt, net of current portion			$	1,471.4		$	1,700.2

(a) Range of interest rates for the nine months endedSeptember 30, 2018.

(b) Range of interest rates for the year ended December 31, 2017.

(c) Note payable to related party.

THE DAYTON POWER AND LIGHT COMPANY [Member]

Debt Instrument [Line Items]

Long-term Debt

The following table summarizes DP&L's outstanding long-term debt.

	Interest		September 30,			December 31,
$ in millions	Rate	Maturity	2018			2017
Term loan - rates from 3.57% - 4.82% (a) and 4.01% - 4.60% (b)		2022	$	437.2		$	440.6
Tax-exempt First Mortgage Bonds - rates from 2.50% - 2.72% (a) and 1.52% - 1.92% (b)		2020	140.0			200.0
U.S. Government note	4.2%	2061	17.7			17.8
Unamortized deferred financing costs			(6.7		)	(9.8		)
Unamortized long-term debt discounts			(1.5		)	(2.0		)
Total long-term debt			586.7			646.6
Less: current portion			(4.6		)	(4.6		)
Long-term debt, net of current portion			$	582.1		$	642.0

(a) Range of interest rates for the nine months ended September 30, 2018.

(b) Range of interest rates for the year ended December 31, 2017.