Income Taxes (Tables)

9 Months Ended

Sep. 30, 2012

Income Taxes Tables [Abstract]

Effective Income Tax Rate Reconciliation

For the Three Months Ended September 30, 2012		Exelon (a)		Generation (a)		ComEd		PECO		BGE (b)
U.S. Federal statutory rate		35.0	%	35.0	%	35.0	%	35.0	%	0.0	%
Increase (decrease) due to:
	State income taxes, net of Federal income tax benefit	5.6		5.9		5.0		3.0		0.0
	Qualified nuclear decommissioning trust fund income	7.8		21.5		0.0		0.0		0.0
	Domestic production activities deduction	0.3		0.8		0.0		0.0		0.0
	Tax exempt income	(0.2)		(0.5)		0.0		0.0		0.0
	Health Care Reform Legislation	0.0		0.0		0.6		0.0		0.0
	Amortization of investment tax credit, net deferred taxes	(4.8)		(13.0)		(0.5)		(0.3)		0.0
	Plant basis differences	(4.7)		0.0		(0.5)		(21.0)		0.0
	Production tax credits	(2.5)		(7.4)		0.0		0.0		0.0
	Fines & penalties	(0.1)		0.0		0.0		0.0		0.0
	Other (d)	(1.2)		7.1		0.0		0.2		0.0
Effective income tax rate		35.2	%	49.4	%	39.6	%	16.9	%	0.0	%
For the Nine Months Ended September 30, 2012		Exelon (a)		Generation (a)		ComEd		PECO		BGE (b)
U.S. Federal statutory rate		35.0	%	35.0	%	35.0	%	35.0	%	35.0	%
Increase (decrease) due to:
	State income taxes, net of Federal income tax benefit	(4.7)		2.5		5.4		3.2		2.3
	Qualified nuclear decommissioning trust fund income	6.9		10.9		0.0		0.0		0.0
	Tax exempt income	(0.3)		(0.5)		0.0		0.0		0.0
	Health Care Reform Legislation	0.2		0.0		0.6		0.0		(4.6)
	Amortization of investment tax credit, net deferred taxes	(2.3)		(3.3)		(0.5)		(0.3)		2.9
	Plant basis differences	(2.2)		0.0		(0.2)		(9.7)		7.2
	Production tax credits	(2.6)		(4.3)		0.0		0.0		0.0
	Fines & penalties	3.8		6.0		0.0		0.0		0.0
	Merger expenses (c)	3.6		0.0		0.0		0.0		(14.0)
	Other	(1.3)		0.8		0.2		(0.0)		4.5
Effective income tax rate		36.1	%	47.1	%	40.5	%	28.2	%	33.3	%

For the Three Months Ended September 30, 2011		Exelon		Generation		ComEd		PECO		BGE (b)
U.S. Federal statutory rate		35.0	%	35.0	%	35.0	%	35.0	%	35.0	%
Increase (decrease) due to:
	State income taxes, net of Federal income tax benefit	4.8		5.5		0.8		2.9		6.2
	Qualified nuclear decommissioning trust fund income	(6.4)		(10.2)		0.0		0.0		0.0
	Domestic production activities deduction	1.0		1.7		0.0		0.0		0.0
	Tax exempt income	(0.1)		(0.2)		0.0		0.0		0.0
	Health Care Reform Legislation	0.0		0.0		0.3		0.0		(16.4)
	Amortization of investment tax credit	(0.3)		(0.2)		(0.5)		(0.3)		13.8
	Plant basis differences	(3.2)		0.0		(0.7)		(23.8)		48.4
	Production tax credits	(1.1)		(1.7)		0.0		0.0		0.0
	Interest and penalties on unrecognized tax benefits (e)	0.0		0.0		0.0		0.0		137.8
	Other	0.1		0.3		0.4		0.1		75.2
Effective income tax rate		29.8	%	30.2	%	35.3	%	13.9	%	300.0	%
For the Nine Months Ended September 30, 2011		Exelon		Generation		ComEd		PECO		BGE (b)
U.S. Federal statutory rate		35.0	%	35.0	%	35.0	%	35.0	%	35.0	%
Increase (decrease) due to:
	State income taxes, net of Federal income tax benefit	4.1		4.9		3.4		(0.4)		4.8
	Qualified nuclear decommissioning trust fund income	(0.6)		(0.8)		0.0		0.0		0.0
	Domestic production activities deduction	(0.4)		(0.6)		0.0		0.0		0.0
	Tax exempt income	(0.1)		(0.2)		0.0		0.0		0.0
	Health Care Reform Legislation	0.0		0.0		(1.5)		0.0		(0.8)
	Amortization of investment tax credit	(0.3)		(0.2)		(0.4)		(0.3)		(0.5)
	Plant basis differences	(1.0)		0.0		(0.4)		(6.8)		(1.6)
	Production tax credits	(1.0)		(1.4)		0.0		0.0		0.0
	Interest and penalties on unrecognized tax benefits (e)	0.0		0.0		0.0		0.0		(1.1)
	Other	(0.3)		(0.9)		0.3		0.0		(0.1)
Effective income tax rate		35.4	%	35.8	%	36.4	%	27.5	%	35.7	%