Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2011

Intangible Assets

Schedule of changes in the gross amount of goodwill and the accumulated impairment losses

At December 31,	2011			2010
	(In millions)
Balance as of January 1,
Gross goodwill	$	343.5		$	292.0
Accumulated impairment losses		(266.5	)		(266.5	)
Net goodwill		77.0			25.5
Goodwill acquired (1)		202.4			51.5
Impairment losses		—			—
Other purchase price adjustments		2.8			—
Balance as of December 31,
Gross goodwill		548.7			343.5
Accumulated impairment losses		(266.5	)		(266.5	)
Net goodwill	$	282.2		$	77.0

(1)

We discuss the goodwill acquired in 2011 and 2010 in more detail in Note 15.

Schedule of primary intangible assets with finite lives subject to amortization

At December 31,	2011							2010
	Gross Carrying Amount		Accumul- ated Amortiz- ation			Net Asset		Gross Carrying Amount		Accumul- ated Amortiz- ation			Net Asset
	(In millions)
Software	$	478.6	$	(322.7	)	$	155.9	$	596.8	$	(397.1	)	$	199.7
Permits and licenses		4.5		(1.6	)		2.9		2.7		(1.0	)		1.7
Other		233.3		(89.6	)		143.7		22.3		(8.2	)		14.1
Total	$	716.4	$	(413.9	)	$	302.5	$	621.8	$	(406.3	)	$	215.5

Schedule of recognized amortization expense related to intangible assets

Year Ended December 31,	2011		2010		2009
	(In millions)
Nonregulated businesses	$	87.8	$	64.8	$	74.2
BGE		25.4		25.8		23.6
Total Constellation Energy	$	113.2	$	90.6	$	97.8

Schedule of estimated amortization expense related to intangible assets

Year Ended December 31,	2012		2013		2014		2015		2016
	(In millions)
Estimated amortization expense—Nonregulated businesses	$	82.8	$	62.1	$	40.9	$	22.4	$	14.0
Estimated amortization expense—BGE		20.7		16.3		10.3		6.9		1.7
Total estimated amortization expense—Constellation Energy	$	103.5	$	78.4	$	51.2	$	29.3	$	15.7

Schedule of gross and net carrying amount and accumulated amortization of the net liability related to energy contracts

	2011
At December 31									2010
	Carrying Amount			Accumul- ated Amortiz- ation		Net (Liability) Asset			Carrying Amount			Accumul- ated Amortiz- ation		Net Asset
	(In millions)
Unamortized energy contracts, net	$	(1,454.9	)	$	1,152.5	$	(302.4	)	$	(1,360.9	)	$	1,473.8	$	112.9

Schedule of estimated amortization of energy contract assets and liabilities

Year Ended December 31,	2012			2013			2014			2015			2016
	(In millions)
Estimated amortization expense (income)	$	(65.2	)	$	(81.2	)	$	(71.3	)	$	(65.6	)	$	(16.4	)