Related Party Transactions (Tables)

9 Months Ended

Sep. 30, 2013

Schedule Of Related Party Transactions By Related Party Tables [Line Items]

Schedule Of Income Loss From Equity Method Investments [Text Block]

	Three Months			Three Months
	Ended September 30,			Ended September 30,
	2013		2012
Equity investment income	$	68	$	58
Amortization of basis difference in CENG		(31)		(57)
Total equity in earnings - CENG	$	37	$	1
	Nine Months			For the Period March 12,
	Ended September 30,			through September 30,
	2013		2012
Equity investment income (loss)	$	93	$	53
Amortization of basis difference in CENG		(88)		(131)
Total equity in earnings (losses) - CENG	$	5	$	(78)

Exelon Generation Co L L C [Member]

Schedule Of Related Party Transactions By Related Party Tables [Line Items]

Schedule Of Income Loss From Equity Method Investments [Text Block]

	Three Months			Three Months
	Ended September 30,			Ended September 30,
	2013		2012
Equity investment income	$	68	$	58
Amortization of basis difference in CENG		(31)		(57)
Total equity in earnings - CENG	$	37	$	1
	Nine Months			For the Period March 12,
	Ended September 30,			through September 30,
	2013		2012
Equity investment income (loss)	$	93	$	53
Amortization of basis difference in CENG		(88)		(131)
Total equity in earnings (losses) - CENG	$	5	$	(78)