Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Exelon’s, Generation's and ComEd’s gross amount of goodwill, accumulated impairment losses and carrying amount of goodwill for the years ended December 31, 2015 and 2014 were as follows:



	ComEd						Generation				Exelon
	Gross Amount ^(a)		Accumulated Impairment Losses		Carrying Amount		Gross Amount		Carrying Amount		Gross Amount		Accumulated Impairment Losses		Carrying Amount
Balance, January 1, 2014	$	4,608	$	1,983	$	2,625	$	—	$	—	$	4,608	$	1,983	$	2,625
Goodwill from business combination	—		—		—		47		47		47		—		47
Balance, December 31, 2014	4,608		1,983		2,625		47		47		4,655		1,983		2,672
Impairment losses	—		—		—		—		—		—		—		—
Balance, December 31, 2015	$	4,608	$	1,983	$	2,625	$	47	$	47	$	4,655	$	1,983	$	2,672

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(a)	Reflects goodwill recorded in 2000 from the PECO/Unicom (predecessor parent company of ComEd) merger net of amortization, resolution of tax matters and other non-impairment-related changes as allowed under previous authoritative guidance.

Schedule of Finite-Lived Intangible Assets

Exelon’s, Generation’s and ComEd’s other intangible assets and liabilities, included in Unamortized energy contract assets and liabilities and Other deferred debits and other assets in their Consolidated Balance Sheets, consisted of the following as of December 31, 2015:



	Weighted Average Amortization Years ^(k)										Estimated amortization expense
	Weighted Average Amortization Years ^(k)	Gross			Accumulated Amortization			Net			2016			2017			2018			2019			2020
Exelon
Software License Agreement ^(a)	10.0	$	95		$	(6	)	$	89		$	10		$	10		$	10		$	10		$	10
Generation
Unamortized Energy Contracts ^(b)
Exelon Wind ^(c)	18.0	224			(69		)	155			14			14			14			14			10
Antelope Valley^(d)	25.0	190			(20		)	170			8			8			8			8			8
Constellation ^(e)	1.5	1,499			(1,473		)	26			(33		)	(21		)	11			8			10
CENG ^(f)	1.7	(97		)	48			(49		)	(11		)	(15		)	(18		)	(15		)	(8		)
Integrys ^(g)	2.4	5			2			7			5			1			1			—			—
Customer Relationships ^(h)
Constellation ^(e)	12.4	214			(76		)	138			18			18			18			17			17
Integrys ^(g)	10.0	50			(6		)	44			5			5			5			5			5
Trade Names
Constellation ^(e)	10.0	243			(103		)	140			23			23			23			23			23
ComEd
Chicago settlement—1999 agreement ⁽ⁱ⁾	21.8	100			(83		)	17			3			3			3			4			4
Chicago settlement—2003 agreement ^(j)	17.9	62			(44		)	18			4			4			4			3			3
Total intangible assets		$	2,585		$	(1,830	)	$	755		$	46		$	50		$	79		$	77		$	82

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(a)	On May 31, 2015, Exelon entered into a long-term software license agreement. Exelon is required to make payments starting August 2015 through May 2024. The intangible asset recognized as a result of these payments is being amortized on a straight-line basis over the contract term.

(b)

Includes unamortized energy contract assets and liabilities on Exelon's and Generation's Consolidated Balance Sheets. Excludes $44 million of other miscellaneous unamortized energy contracts that have been acquired at various points in time. The estimated amortization for these miscellaneous unamortized energy contracts is $3 million, $0 million, $2 million, $3 million and $4 million for 2016, 2017, 2018, 2019 and 2020, respectively.


(c)	In December 2010, Generation acquired all of the equity interests of John Deere Renewables, LLC (later named Exelon Wind), adding 735MWs of installed, operating wind capacity located in eight states.


(d)	In September 2011, Generation acquired all of the interest in Antelope Valley Solar Ranch One, a 242 MW solar project under development in northern Los Angeles County, CA from First Solar, Inc.


(e)	On March 12, 2012, Constellation merged into Exelon with Exelon continuing as the surviving corporation pursuant to the transactions contemplated by the Agreement and Plan of Merger. Since the merger transaction, Generation includes the former Constellation generation and customer supply operations.


(f)	See Note 5—Investment in Constellation Energy Nuclear Group, LLC for additional information.


(g)	See Note 4—Mergers, Acquisitions, and Dispositions for additional information.


(h)	Excludes $12 million of other miscellaneous customer relationships that have been acquired. The estimated amortization for these miscellaneous customer relationships is $1 million in each of the years from 2016 to 2020.

(i)

In March 1999, ComEd entered into a settlement agreement with the City of Chicago associated with ComEd’s franchise agreement. Under the terms of the settlement, ComEd agreed to make payments to the City of Chicago each year from 1999 to 2002. The intangible asset recognized as a result of these payments is being amortized ratably over the remaining term of the franchise agreement, which ends in 2020.

(j)

In February 2003, ComEd entered into separate agreements with the City of Chicago and with Midwest Generation, LLC (Midwest Generation). Under the terms of the settlement agreement with the City of Chicago, ComEd agreed to pay the City of Chicago a total of $60 million over a ten-year period, beginning in 2003. The intangible asset recognized as a result of the settlement agreement is being amortized ratably over the remaining term of the City of Chicago franchise agreement, which ends in 2020. As required by the settlement, ComEd also made a payment of $2 million to a third-party on the City of Chicago’s behalf. Under the terms of the agreement with Midwest Generation, ComEd received payments of $32 million from Midwest Generation to relieve Midwest Generation’s obligation under the 1999 fossil sale agreement with ComEd to build the generation facility in the City of Chicago. The payments received by ComEd, which have been recorded in Other deferred credits and other liabilities, and other long-term liabilities on Exelon's and ComEd's Consolidated Balance Sheets are being recognized ratably (approximately $2 million annually) as an offset to amortization expense over the remaining term of the franchise agreement.


(k)	Weighted-average amortization period was calculated at the date of a) acquisition for acquired assets or b) settlement agreement.

Schedule Of Finite-Lived Intangible Assets Amortization Expense

The following table summarizes the amortization expense related to intangible assets and liabilities for each of the years ended December 31, 2015, 2014 and 2013:



For the Year Ended December 31,	Exelon ^(a)		Generation ^(a)		ComEd
2015	$	76	$	69	$	7
2014	179		179		7
2013	478		550		7

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(a) At Exelon, amortization of unamortized energy contracts totaling $22 million, $135 million and $430 million for the years ended December 31, 2015, 2014 and 2013, respectively, was recorded in Operating revenues or Purchase power and fuel expense within Exelon’s Consolidated Statement of Operations and Comprehensive Income. At Generation, amortization of unamortized energy contracts totaling $22 million, $135 million and $507 million for the years ended December 31, 2015, 2014 and 2013, respectively, was recorded in Operating revenues or Purchase power and fuel expense within Generation’s Consolidated Statement of Operations and Comprehensive Income