Income Taxes (Tables)

6 Months Ended

Jun. 30, 2019

Entity Information [Line Items]

Schedule of Effective Income Tax Rates

The following table details the effective tax rates for the three and six months ended June 30, 2019 and 2018.

	Three months ended		Six months ended
	June 30,		June 30,
	2019	2018	2019	2018
DPL	16.6%	(12.9)%	12.8%	13.9%

THE DAYTON POWER AND LIGHT COMPANY [Member]

Entity Information [Line Items]

Schedule of Effective Income Tax Rates

The following table details the effective tax rates for the three and six months ended June 30, 2019 and 2018.

	Three months ended		Six months ended
	June 30,		June 30,
	2019	2018	2019	2018
DP&L	17.2%	12.3%	17.3%	15.7%