Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 123.9	$ 24.5
Restricted cash	27.4	1.9
Accounts receivable, net	101.2	98.7
Inventories	22.3	24.5
Taxes applicable to subsequent years	55.3	73.8
Regulatory assets, current	21.3	23.9
Other prepayments and current assets	21.1	27.9
Assets Held-for-sale, Not Part of Disposal Group, Current	0.0	250.3
Total current assets	372.5	525.5
Property, plant & equipment:
Property, plant & equipment	1,589.0	1,554.7
Less: Accumulated depreciation and amortization	(291.8)	(278.6)
Property, plant and equipment, net of depreciation	1,297.2	1,276.1
Construction work in process	33.2	48.8
Total net property, plant & equipment	1,330.4	1,324.9
Other non-current assets:
Regulatory assets, non-current	159.7	163.2
Intangible assets, net of amortization	19.6	21.1
Other deferred assets	13.1	14.5
Total other non-current assets	192.4	198.8
Total assets	1,895.3	2,049.2
Current liabilities:
Current portion of long-term debt	105.6	4.7
Short-term debt	20.0	10.0
Accounts payable	71.5	70.1
Accrued taxes	84.5	80.0
Accrued interest	34.1	16.4
Security deposits	22.4	21.8
Regulatory liabilities, current	8.5	14.8
Insurance and claims costs	3.0	3.0
Other current liabilities	25.9	42.8
Liabilities Held for Sale, Current	0.0	13.2
Total current liabilities	375.5	276.8
Non-current liabilities:
Long-term debt	1,471.0	1,700.4
Deferred taxes	70.3	111.2
Taxes payable	39.9	77.4
Regulatory liabilities, non-current	221.9	221.2
Pension, retiree and other benefits	93.8	101.0
Asset Retirement Obligations, Noncurrent	128.3	131.2
Other deferred credits	14.1	14.3
Total non-current liabilities	2,039.3	2,356.7
Commitments and contingencies
Common shareholder's equity:
Common stock	0.0	0.0
Other paid-in capital	2,375.0	2,330.4
Accumulated other comprehensive income	3.1	0.8
Retained earnings/ (deficit)	(2,897.6)	(2,915.5)
Total common shareholder's equity	(519.5)	(584.3)
Total liabilities and shareholder's equity	1,895.3	2,049.2
THE DAYTON POWER AND LIGHT COMPANY [Member]
Current assets:
Cash and cash equivalents	1.0	5.2
Restricted cash	0.9	0.4
Accounts receivable, net	73.0	70.8
Inventories	7.6	7.3
Taxes applicable to subsequent years	53.3	71.1
Regulatory assets, current	21.3	23.9
Other prepayments and current assets	15.6	14.6
Total current assets	172.7	193.3
Property, plant & equipment:
Property, plant & equipment	2,274.8	2,247.2
Less: Accumulated depreciation and amortization	(996.3)	(987.3)
Property, plant and equipment, net of depreciation	1,278.5	1,259.9
Construction work in process	26.3	41.5
Total net property, plant & equipment	1,304.8	1,301.4
Other non-current assets:
Regulatory assets, non-current	159.7	163.2
Intangible assets, net of amortization	17.6	18.8
Other deferred assets	12.1	12.7
Total other non-current assets	189.4	194.7
Total assets	1,666.9	1,689.4
Current liabilities:
Current portion of long-term debt	4.6	4.6
Short-term debt	20.0	10.0
Accounts payable	50.0	46.6
Accrued taxes	69.4	70.1
Accrued interest	1.2	0.8
Security deposits	22.4	21.8
Regulatory liabilities, current	8.5	14.8
Other current liabilities	11.3	12.9
Total current liabilities	187.4	181.6
Non-current liabilities:
Long-term debt	583.1	642.0
Deferred taxes	134.3	131.0
Taxes payable	40.3	75.8
Regulatory liabilities, non-current	221.9	221.2
Pension, retiree and other benefits	84.3	91.1
Unamortized investment tax credit	0.8	0.9
Other deferred credits	6.8	7.1
Total non-current liabilities	1,076.2	1,177.1
Commitments and contingencies
Common shareholder's equity:
Common stock	0.4	0.4
Other paid-in capital	741.7	685.8
Accumulated other comprehensive income	(36.2)	(36.2)
Retained earnings/ (deficit)	(302.6)	(319.3)
Total common shareholder's equity	403.3	330.7
Total liabilities and shareholder's equity	$ 1,666.9	$ 1,689.4