Commitments And Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Schedule Of Accrued Liabilities for Environmental Exposures

			Legacy Generation
	Transmission and Distribution		Regulated			Non- Regulated		Other		Total
	(millions of dollars)
Beginning balance as of January 1	$	15	$	8		$	5	$	2	$	30
Accruals		—		—			—		—		—
Payments		—		(1	)		—		—		(1	)
Ending balance as of December 31		15		7			5		2		29
Less amounts in Other current liabilities		2		2			—		2		6
Amounts in Other deferred credits	$	13	$	5		$	5	$	—	$	23

Schedule Of Commitments And Obligations

	Guarantor
	PHI		Pepco		DPL		ACE		Total
Energy procurement obligations of Pepco Energy Services (a)	$	90	$	—	$	—	$	—	$	90
Guarantees associated with disposal of Conectiv Energy assets (b)		13		—		—		—		13
Guaranteed lease residual values (c)		2		5		6		4		17
Total	$	105	$	5	$	6	$	4	$	120

(a) PHI has contractual commitments for performance and related payments of Pepco Energy Services to counterparties under routine energy sales and procurement obligations.

(b) Represents guarantees by PHI of Conectiv Energy’s derivatives 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. This guarantee will remain in effect until the end of 2015.

(c) 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 $54 million, $9 million of which is a guaranty by PHI, $15 million by Pepco, $18 million by DPL and $12 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.

Potomac Electric Power Co [Member]

Schedule Of Accrued Liabilities for Environmental Exposures

	Transmission and Distribution		Legacy Generation - Regulated			Total
	(millions of dollars)
Beginning balance as of January 1	$	14	$	4		$	18
Accruals		—		—			—
Payments		—		(1	)		(1	)
Ending balance as of December 31		14		3			17
Less amounts in Other current liabilities		1		—			1
Amounts in Other deferred credits	$	13	$	3		$	16

Atlantic City Electric Co [Member]

Schedule Of Accrued Liabilities for Environmental Exposures

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

Delmarva Power & Light Co/De [Member]

Schedule Of Accrued Liabilities for Environmental Exposures

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