Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Schedule of Accrued Liabilities for Environmental Exposures

The total accrued liabilities for the environmental contingencies described below of PHI and its subsidiaries at December 31, 2015 are summarized as follows:

				Legacy Generation
	Transmission and Distribution			Regulated			Non-Regulated		Total
				(millions of dollars)
Balance as of January 1	$	17		$	6		$	5	$	28
Accruals		7			3			—		10
Payments		(4	)		(1	)		—		(5	)
Balance as of December 31		20			8			5		33
Less amounts in Other Current Liabilities		3			1			—		4
Amounts in Other Deferred Credits	$	17		$	7		$	5	$	29

Schedule of Commitments and Obligations

As of December 31, 2015, PHI and its subsidiaries were parties to a variety of agreements pursuant to which they were guarantors. The commitments and obligations were as follows:

	Guarantor
	PHI		Pepco		DPL		ACE		Total
	(millions of dollars)
Guarantees associated with disposal of Conectiv Energy assets (a)	$	13	$	—	$	—	$	—	$	13
Guaranteed lease residual values (b)		3		5		6		5		19
Total	$	16	$	5	$	6	$	5	$	32

(a) Represents guarantees by PHI of Conectiv Energy’s derivative portfolio transferred in connection with the disposition of Conectiv Energy’s wholesale business. The derivative portfolio guarantee is currently $13 million and covers Conectiv Energy’s performance prior to the assignment. The guarantee will terminate in 2016.

(b) Represents the maximum potential obligation in the event that the fair value of certain leased equipment and fleet vehicles is zero at the end of the maximum lease term. The maximum lease term associated with these assets ranges from 3 to 8 years. The maximum potential obligation at the end of the minimum lease term would be $52 million, $9 million of which is a guarantee by PHI, $13 million by Pepco, $16 million by DPL and $14 million by ACE. The minimum lease term associated with these assets ranges from 1 to 4 years. Historically, payments under the guarantees have not been made and PHI believes the likelihood of payments being required under the guarantees is remote.

Atlantic City Electric Co [Member]

Schedule of Accrued Liabilities for Environmental Exposures

The total accrued liabilities for the environmental contingencies of ACE described below at December 31, 2015 are summarized as follows:

	Legacy Generation - Regulated
	(millions of dollars)
Balance as of January 1	$	1
Accruals		—
Payments		—
Balance as of December 31		1
Less amounts in Other Current Liabilities		—
Amounts in Other Deferred Credits	$	1

Potomac Electric Power Co [Member]

Schedule of Accrued Liabilities for Environmental Exposures

The total accrued liabilities for the environmental contingencies of Pepco described below at December 31, 2015 are summarized as follows:

	Transmission and Distribution			Legacy Generation - Regulated		Total
	(millions of dollars)
Balance as of January 1	$	16		$	3	$	19
Accruals		4			3		7
Payments		(2	)		—		(2	)
Balance as of December 31		18			6		24
Less amounts in Other Current Liabilities		2			—		2
Amounts in Other Deferred Credits	$	16		$	6	$	22

Delmarva Power & Light Co/De [Member]

Schedule of Accrued Liabilities for Environmental Exposures

The total accrued liabilities for the environmental contingencies of DPL described below at December 31, 2015 are summarized as follows:

	Transmission and Distribution			Legacy Generation - Regulated			Total
	(millions of dollars)
Balance as of January 1	$	1		$	2		$	3
Accruals		3			—			3
Payments		(2	)		(1	)		(3	)
Balance as of December 31		2			1			3
Less amounts in Other Current Liabilities		1			1			2
Amounts in Other Deferred Credits	$	1		$	—		$	1