Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures

The following table presents the components of Exelon’s net periodic benefit costs, prior to any capitalization, for the three months ended March 31, 2015 and 2014.

	Pension Benefits Three Months Ended March 31,						Other Postretirement Benefits Three Months Ended March 31,
	2015(a)			2014(a)			2015(a)			2014(a)
Service cost	$	82		$	69		$	30		$	33
Interest cost	178			183			42			55
Expected return on assets	(257		)	(241		)	(38		)	(38		)
Amortization of:
Prior service cost (benefit)	3			3			(43		)	(4		)
Actuarial loss	143			105			20			8
Net periodic benefit cost	$	149		$	119		$	11		$	54

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(a) For the three months ended March 31, 2015, the cost for pension benefits and other postretirement benefits related to CENG were $3 million and $3 million, respectively. CENG is not included in the 2014 amounts.

Schedule Of Pension And Other Postretirement Benefit Costs

The amounts below represent Generation’s, ComEd’s, PECO’s, BGE’s and BSC's allocated portion of the pension and postretirement benefit plan costs, which were included in Property, plant and equipment within the respective Consolidated Balance Sheets and Operating and maintenance expense within the Consolidated Statement of Operations and Comprehensive Income during the three months ended March 31, 2015 and 2014.

	Three Months Ended March 31,
Pension and Other Postretirement Benefit Costs	2015		2014
Generation(a)	$	67	$	75
ComEd	52		56
PECO	10		12
BGE	17		16
BSC(b)	14		14

______________ 

(a) For the three months ended March 31, 2015, the cost for pension benefits and other postretirement benefits related to CENG were $3 million and $3 million, respectively. CENG is not included in the 2014 amounts.

(b) These amounts primarily represent amounts billed to Exelon’s subsidiaries through intercompany allocations. These amounts are not included in the Generation, ComEd, PECO or BGE amounts above.

Schedule Of Defined Contributions

The following table presents the matching contributions to the savings plans during the three months ended March 31, 2015 and 2014:

	Three Months Ended March 31,
Savings Plan Matching Contributions	2015		2014
Exelon(a)	$	22	$	29
Generation(a)	13		14
ComEd	5		7
PECO	1		2
BGE	2		3
BSC(b)	1		3

_______________ 

(a) Includes $2 million related to CENG for the three months ended March 31, 2015. CENG is not included in the 2014 amounts.

(b) These amounts primarily represent amounts billed to Exelon’s subsidiaries through intercompany allocations. These costs are not included in the Generation, ComEd, PECO or BGE amounts above.