Income Taxes (Tables)

9 Months Ended

Sep. 30, 2014

Income Tax Disclosure [Abstract]

Effective Income Tax Rate Reconciliation

For the Three Months Ended September 30, 2014	Exelon		Generation		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	1.1		0.7		5.0		0.1		4.6
Qualified nuclear decommissioning trust fund income	(0.3	)	(0.4	)	—		—		—
Domestic production activities deduction	(2.4	)	(3.2	)	—		—		—
Health care reform legislation	—		—		0.2		—		0.2
Amortization of investment tax credit, net deferred taxes	(1.0	)	(1.2	)	(0.3	)	(0.1	)	(0.3	)
Plant basis differences	(0.8	)	—		—		(11.3	)	0.5
Production tax credits and other credits	(1.9	)	(2.4	)	—		—		—
Noncontrolling interest	(1.2	)	(1.6	)	—		—		—
Other	(0.3	)	(1.4	)	0.1		(0.1	)	(1.2	)
Effective income tax rate	28.2	%	25.5	%	40.0	%	23.6	%	38.8	%

For the Nine Months Ended September 30, 2014	Exelon		Generation		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	0.5		(1.4	)	5.0		0.3		4.9
Qualified nuclear decommissioning trust fund income	2.0		3.6		—		—		—
Domestic production activities deduction	(2.7	)	(4.8	)	—		—		—
Health care reform legislation	0.1		—		0.2		—		0.2
Amortization of investment tax credit, net deferred taxes	(1.1	)	(1.7	)	(0.3	)	(0.1	)	(0.3	)
Plant basis differences	(1.6	)	—		(0.3	)	(11.0	)	0.5
Production tax credits and other credits	(2.1	)	(3.7	)	—		—		—
Noncontrolling interest	(1.4	)	(2.6	)	—		—		—
Other	(1.5	)	(2.5	)	0.1		0.1		(0.5	)
Effective income tax rate	27.2	%	21.9	%	39.7	%	24.3	%	39.8	%

For the Three Months Ended September 30, 2013	Exelon		Generation		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	3.0		2.6		5.4		(0.3	)	5.6
Qualified nuclear decommissioning trust fund income	3.5		5.3		—		—		—
Tax exempt income	(0.2	)	(0.3	)	—		—		—
Health care reform legislation	0.1		—		0.4		—		0.2
Amortization of investment tax credit, net deferred taxes	(1.5	)	(2.1	)	(0.4	)	(0.1	)	(0.3	)
Plant basis differences	(0.8	)	—		(0.4	)	(6.9	)	0.1
Production tax credits and other credits	(2.2	)	(3.3	)	—		—		—
Other	0.5		0.1		0.3		(0.1	)	(0.2	)
Effective income tax rate	37.4	%	37.3	%	40.3	%	27.6	%	40.4	%

For the Nine Months Ended September 30, 2013	Exelon		Generation		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	5.3		1.8		5.2		1.9		5.6
Qualified nuclear decommissioning trust fund income	3.2		5.1		—		—		—
Tax exempt income	(0.2	)	(0.3	)	—		—		—
Health care reform legislation	0.1		—		0.9		—		0.2
Amortization of investment tax credit, net deferred taxes	(2.3	)	(3.4	)	(0.8	)	(0.1	)	(0.3	)
Plant basis differences	(1.7	)	—		(1.2	)	(7.3	)	(0.4	)
Production tax credits and other credits	(2.4	)	(3.9	)	—		—		—
Other	0.2		1.1		0.8		—		—
Effective income tax rate	37.2	%	35.4	%	39.9	%	29.5	%	40.1	%