Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 412.2	$ 36.5
Restricted cash	0.1	10.5
Accounts receivable, net	61.8	67.9
Inventories	9.1	10.4
Taxes applicable to subsequent years	40.9	77.5
Regulatory assets, current	21.7	19.7
Income Taxes Receivable, Current	5.7	23.6
Prepayments and other current assets	5.9	7.6
Total current assets	557.4	276.0
Property, plant & equipment:
Property, plant & equipment	1,774.2	1,701.9
Less: Accumulated depreciation and amortization	(385.0)	(362.6)
Property, plant and equipment, net of depreciation	1,389.2	1,339.3
Construction work in process	96.5	106.3
Total net property, plant & equipment	1,485.7	1,445.6
Other non-current assets:
Regulatory assets, non-current	176.9	173.8
Intangible assets, net of amortization	18.2	19.3
Other non-current assets	19.2	20.0
Disposal Group, Including Discontinued Operation, Assets, Noncurrent	0.0	1.1
Total other non-current assets	214.3	214.2
Total assets	2,257.4	1,935.8
Current liabilities:
Current portion of long-term debt	379.2	283.8
Accounts payable	62.9	72.6
Accrued taxes	87.1	79.3
Accrued interest	11.7	11.4
Security deposits	19.3	20.7
Regulatory liabilities, current	17.3	27.9
Other current liabilities	22.6	21.2
Liabilities Held for Sale, Current	0.0	9.0
Total current liabilities	600.1	525.9
Non-current liabilities:
Long-term debt	1,392.8	1,223.3
Deferred taxes	172.9	133.7
Taxes payable	43.1	81.1
Regulatory liabilities, non-current	227.5	243.6
Pension, retiree and other benefits	70.5	79.9
Other deferred credits	19.1	11.8
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent	0.0	8.4
Total non-current liabilities	1,925.9	1,781.8
Commitments and contingencies
Common shareholder's equity:
Common stock	0.0	0.0
Other paid-in capital	2,468.7	2,370.7
Accumulated other comprehensive income	(3.7)	(3.6)
Retained Earnings (Accumulated Deficit)	(2,733.6)	(2,739.0)
Total common shareholder's equity	(268.6)	(371.9)
Total liabilities and shareholder's equity	$ 2,257.4	$ 1,935.8
Common Stock, Shares Authorized	1,500	1,500
Common stock, shares issued	1	1
Par value common shares (in USD per share)		$ 0.01
Disposal Group, Including Discontinued Operation, Assets, Current	$ 0.0	$ 22.3
THE DAYTON POWER AND LIGHT COMPANY [Member]
Current assets:
Cash and cash equivalents	74.1	10.8
Restricted cash	0.1	10.5
Accounts receivable, net	66.0	70.9
Inventories	9.1	10.4
Taxes applicable to subsequent years	40.6	77.4
Regulatory assets, current	21.7	19.7
Income Taxes Receivable, Current	37.8	35.7
Prepayments and other current assets	7.4	10.8
Total current assets	256.8	246.2
Property, plant & equipment:
Property, plant & equipment	2,384.7	2,333.6
Less: Accumulated depreciation and amortization	(1,014.6)	(1,012.7)
Property, plant and equipment, net of depreciation	1,370.1	1,320.9
Construction work in process	94.0	104.5
Total net property, plant & equipment	1,464.1	1,425.4
Other non-current assets:
Regulatory assets, non-current	176.9	173.8
Intangible assets, net of amortization	17.2	18.2
Other non-current assets	18.1	19.6
Total other non-current assets	212.2	211.6
Total assets	1,933.1	1,883.2
Current liabilities:
Current portion of long-term debt	0.2	179.8
Accounts payable	59.1	74.4
Accrued taxes	84.8	79.4
Accrued interest	1.3	1.4
Security deposits	19.0	20.6
Regulatory liabilities, current	17.3	27.9
Other current liabilities	14.1	16.3
Total current liabilities	195.8	399.8
Non-current liabilities:
Long-term debt	574.2	434.6
Deferred taxes	171.6	158.1
Taxes payable	42.8	82.3
Regulatory liabilities, non-current	227.5	243.6
Pension, retiree and other benefits	70.5	79.9
Other deferred credits	10.6	11.5
Total non-current liabilities	1,097.2	1,010.0
Commitments and contingencies
Common shareholder's equity:
Common stock	0.4	0.4
Other paid-in capital	752.9	617.0
Accumulated other comprehensive income	(35.6)	(36.9)
Retained Earnings (Accumulated Deficit)	(77.6)	(107.1)
Total common shareholder's equity	640.1	473.4
Total liabilities and shareholder's equity	$ 1,933.1	$ 1,883.2
Common Stock, Shares, Outstanding		41,172,173
Common Stock, Shares Authorized	50,000,000	50,000,000
Par value common shares (in USD per share)	$ 0.01