Supplemental Financial Information (Tables)

9 Months Ended

Sep. 30, 2020

Supplemental Financial Information [Line Items]

Schedule of Supplemental Financial Information

Accounts receivable are as follows at September 30, 2020 and December 31, 2019:

	September 30,		December 31,
$ in millions	2020		2019
Accounts receivable, net:
Customer receivables	$	52.2	$	45.7
Unbilled revenue	15.1		19.4
Amounts due from affiliates	0.2		0.3
Due from PJM transmission enhancement settlement	1.8		1.8
Other	2.1		1.1
Allowance for credit losses	(3.2)		(0.4)
Total accounts receivable, net	$	68.2	$	67.9

Reclassification out of Accumulated Other Comprehensive Income

The amounts reclassified out of Accumulated Other Comprehensive Loss by component during the three and nine months ended September 30, 2020 and 2019 are as follows:

Details about Accumulated Other Comprehensive Loss components	Affected line item in the Condensed Consolidated Statements of Operations	Three months ended				Nine months ended
		September 30,				September 30,
$ in millions		2020		2019		2020		2019
Gains and losses on cash flow hedges (Note 5):
	Interest expense	$	(0.3)	$	(0.3)	$	(0.9)	$	(0.9)
	Income tax expense / (benefit)	—		(0.1)		0.1		—
	Net of income taxes	(0.3)		(0.4)		(0.8)		(0.9)
	Income tax benefit from discontinued operations	—		(0.4)		—		(0.4)
Amortization of defined benefit pension items (Note 8):
	Other expense	0.3		0.1		0.9		0.2
	Income tax benefit	—		(0.1)		(0.1)		(0.1)
	Net of income taxes	0.3		—		0.8		0.1
Total reclassifications for the period, net of income taxes		$	—	$	(0.8)	$	—	$	(1.2)

Schedule of Accumulated Other Comprehensive Income (Loss)

The changes in the components of Accumulated Other Comprehensive Loss during the nine months ended September 30, 2020 are as follows:

$ in millions	Gains / (losses) on cash flow hedges		Change in unfunded pension and postretirement benefit obligations		Total
Balance at January 1, 2020	$	14.5	$	(18.1)	$	(3.6)
Other comprehensive income / (loss) before reclassifications	—		—		—
Amounts reclassified from AOCL to earnings	(0.8)		0.8		—
Net current period other comprehensive income / (loss)	(0.8)		0.8		—
Balance at September 30, 2020	$	13.7	$	(17.3)	$	(3.6)

Subsidiaries [Member]

Supplemental Financial Information [Line Items]

Schedule of Supplemental Financial Information

Accounts receivable are as follows at September 30, 2020 and December 31, 2019:

	September 30,		December 31,
$ in millions	2020		2019
Accounts receivable, net:
Customer receivables	$	51.2	$	45.0
Unbilled revenue	15.1		19.4
Amounts due from affiliates	2.0		3.9
Due from PJM transmission enhancement settlement	1.8		1.8
Other	2.3		1.2
Allowance for credit losses	(3.2)		(0.4)
Total accounts receivable, net	$	69.2	$	70.9

Reclassification out of Accumulated Other Comprehensive Income

The amounts reclassified out of Accumulated Other Comprehensive Loss by component during the three and nine months ended September 30, 2020 and 2019 are as follows:

Details about Accumulated Other Comprehensive Loss components	Affected line item in the Condensed Statements of Operations	Three months ended				Nine months ended
		September 30,				September 30,
$ in millions		2020		2019		2020		2019
Gains and losses on cash flow hedges (Note 5):
	Interest expense	$	—	$	—	$	(0.2)	$	(0.1)
	Income tax benefit	(0.1)		—		(0.1)		—
	Net of income taxes	(0.1)		—		(0.3)		(0.1)
Amortization of defined benefit pension items (Note 8):
	Other expense	1.0		0.8		3.0		2.6
	Income tax expense / (benefit)	(0.2)		0.9		(0.6)		(0.5)
	Net of income taxes	0.8		1.7		2.4		2.1
Total reclassifications for the period, net of income taxes		$	0.7	$	1.7	$	2.1	$	2.0

Schedule of Accumulated Other Comprehensive Income (Loss)

The changes in the components of Accumulated Other Comprehensive Loss during the nine months ended September 30, 2020 are as follows:

$ in millions	Gains / (losses) on cash flow hedges		Change in unfunded pension and postretirement benefit obligations		Total
Balance at January 1, 2020	$	(0.4)	$	(36.5)	$	(36.9)
Other comprehensive income before reclassifications	0.1		—		0.1
Amounts reclassified from AOCL to earnings	(0.3)		2.4		2.1
Net current period other comprehensive income / (loss)	(0.2)		2.4		2.2
Balance at September 30, 2020	$	(0.6)	$	(34.1)	$	(34.7)