Supplemental Financial Information (Tables)

3 Months Ended

Mar. 31, 2019

Supplemental Financial Information [Line Items]

Schedule of Supplemental Financial Information

Accounts receivable and Inventories are as follows at March 31, 2019 and December 31, 2018:

	March 31,			December 31,
$ in millions	2019			2018
Accounts receivable, net:
Customer receivables	$	60.5		$	55.8
Unbilled revenue	15.7			16.8
Amounts due from affiliates	0.7			—
Due from PJM transmission enhancement settlement	9.8			16.5
Other	1.6			2.3
Provision for uncollectible accounts	(0.6		)	(0.9		)
Total accounts receivable, net	$	87.7		$	90.5
Inventories, at average cost:
Fuel and limestone	$	3.5		$	1.9
Materials and supplies	8.4			8.3
Other	—			0.5
Total inventories, at average cost	$	11.9		$	10.7

Reclassification out of Accumulated Other Comprehensive Income

The amounts reclassified out of Accumulated Other Comprehensive Income / (Loss) by component during the three months ended March 31, 2019 and 2018 are as follows:

Details about Accumulated Other Comprehensive Income / (Loss) components	Affected line item in the Condensed Consolidated Statements of Operations	Three months ended March 31,
$ in millions		2019			2018
Gains and losses on cash flow hedges (Note 5):
	Interest expense	$	(0.3	)	$	(1.0	)
	Income tax expense	0.1			0.6
	Net of income taxes	(0.2		)	(0.4		)
	Loss from discontinued operations	—			4.1
	Income tax benefit from discontinued operations	—			(1.4		)
	Net of income taxes	—			2.7
Amortization of defined benefit pension items (Note 8):
	Other expense	0.1			0.2
	Income tax benefit	—			(0.1		)
	Net of income taxes	0.1			0.1
Total reclassifications for the period, net of income taxes		$	(0.1	)	$	2.4

Schedule of Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income / (Loss) during the three months endedMarch 31, 2019 are as follows:

$ in millions	Gains / (losses) on cash flow hedges			Change in unfunded pension and postretirement benefit obligation			Total
Balance at January 1, 2019	$	17.0		$	(14.8	)	$	2.2
Other comprehensive loss before reclassifications	(0.3		)	—			(0.3		)
Amounts reclassified from AOCI to earnings	(0.2		)	0.1			(0.1		)
Net current period other comprehensive income / (loss)	(0.5		)	0.1			(0.4		)
Balance at March 31, 2019	$	16.5		$	(14.7	)	$	1.8

THE DAYTON POWER AND LIGHT COMPANY [Member]

Supplemental Financial Information [Line Items]

Schedule of Supplemental Financial Information

Accounts receivable and Inventories are as follows at March 31, 2019 and December 31, 2018:

	March 31,			December 31,
$ in millions	2019			2018
Accounts receivable, net:
Customer receivables	$	58.0		$	53.3
Unbilled revenue	15.7			16.8
Amounts due from affiliates	3.9			2.3
Due from PJM transmission enhancement settlement	9.8			16.5
Other	1.6			2.4
Provision for uncollectible accounts	(0.6		)	(0.9		)
Total accounts receivable, net	$	88.4		$	90.4
Inventories, at average cost:
Materials and supplies	$	8.1		$	7.1
Other	—			0.6
Total inventories, at average cost	$	8.1		$	7.7

Reclassification out of Accumulated Other Comprehensive Income

The amounts reclassified out of Accumulated Other Comprehensive Income / (Loss) by component during the three months ended March 31, 2019 and 2018 are as follows:

Details about Accumulated Other Comprehensive Income / (Loss) components	Affected line item in the Condensed Statements of Operations	Three months ended March 31,
$ in millions		2019			2018
Gains and losses on cash flow hedges (Note 5):
	Interest expense	$	(0.1	)	$	(0.8	)
	Income tax expense	—			0.5
	Net of income taxes	(0.1		)	(0.3		)
Amortization of defined benefit pension items (Note 8):
	Other expense	0.9			1.1
	Income tax benefit	(0.2		)	(0.2		)
	Net of income taxes	0.7			0.9
Total reclassifications for the period, net of income taxes		$	0.6		$	0.6

Schedule of Accumulated Other Comprehensive Income (Loss)

The changes in the components of Accumulated Other Comprehensive Income / (Loss) during the three months ended March 31, 2019 are as follows:

$ in millions	Gains / (losses) on cash flow hedges			Change in unfunded pension and postretirement benefit obligation			Total
Balance at January 1, 2019	$	0.6		$	(35.9	)	$	(35.3	)
Other comprehensive loss before reclassifications	(0.2		)	—			(0.2		)
Amounts reclassified from AOCI to earnings	(0.1		)	0.7			0.6
Net current period other comprehensive income / (loss)	(0.3		)	0.7			0.4
Balance at March 31, 2019	$	0.3		$	(35.2	)	$	(34.9	)