Income Taxes (Tables)

3 Months Ended

Mar. 31, 2014

Income Taxes [Line Items]

Effective Income Tax Rate Reconciliation

For the Three Months Ended March 31, 2014		Exelon		Generation (a)		ComEd		PECO		BGE
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	(57.6)		9.7		5.5		1.2		5.2
	Qualified nuclear decommissioning trust fund income	44.2		(4.6)		—		—		—
	Domestic production activities deduction	(27.8)		2.9		—		—		—
	Health care reform legislation	1.3		—		0.1		—		0.2
	Amortization of investment tax credit, net
	deferred taxes	(18.0)		1.7		(0.3)		(0.1)		(0.2)
	Plant basis differences	(31.4)		—		(0.6)		(8.7)		(0.6)
	Production tax credits and other credits	(36.5)		3.8		—		—		—
	Other	(47.7)		3.3		0.2		0.2		0.1
Effective income tax rate		(138.5)	%	51.8	%	39.9	%	27.6	%	39.7	%
For the Three Months Ended March 31, 2013		Exelon		Generation (b)		ComEd (b)		PECO		BGE
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	68.0		82.0		5.8		2.8		5.7
	Qualified nuclear decommissioning trust fund income	62.0		(192.3)		—		—		—
	Domestic production activities deduction	(2.4)		7.4		—		—		—
	Tax exempt income	(1.6)		4.8		—		—		—
	Health care reform legislation	2.2		—		(0.5)		—		0.4
	Amortization of investment tax credit, net
	deferred taxes	(25.8)		75.6		0.4		(0.1)		(0.2)
	Plant basis differences	(24.9)		—		0.9		(6.7)		(0.6)
	Production tax credits and other credits	(21.7)		67.2		—		—		—
	Other	7.4		(74.1)		0.1		0.1		0.4
Effective income tax rate		98.2	%	5.6	%	41.7	%	31.1	%	40.7	%