Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2021

Calculation of Net Periodic Benefit Costs

A portion of the net periodic benefit cost for all plans is capitalized within the Consolidated Balance Sheets. The following table presents the components of Exelon's net periodic benefit costs, prior to capitalization, for the three and six months ended June 30, 2021 and 2020.



	Pension Benefits				OPEB
	Three Months Ended June 30,				Three Months Ended June 30,
	2021		2020		2021		2020
Components of net periodic benefit cost:
Service cost	$	111	$	96	$	20	$	22
Interest cost	160		190		28		39
Expected return on assets	(333)		(318)		(39)		(40)
Amortization of:
Prior service cost (credit)	—		1		(9)		(31)
Actuarial loss	149		128		10		12
Settlement charges	4		6		—		—

Net periodic benefit cost	$	91	$	103	$	10	$	2



	Pension Benefits				OPEB
	Six Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Components of net periodic benefit cost:
Service cost	$	220	$	193	$	40	$	45
Interest cost	320		379		57		77
Expected return on assets	(667)		(636)		(79)		(81)
Amortization of:
Prior service cost (credit)	1		2		(17)		(62)
Actuarial loss	299		256		19		24
Curtailment benefits	—		—		(1)		—
Settlement charges	4		6		—		—

Net periodic benefit cost	$	177	$	200	$	19	$	3

Allocated Portion of Pension and Postretirement Benefit Costs

The amounts below represent the Registrants' allocated pension and OPEB costs. For Exelon, the service cost component is included in Operating and maintenance expense and Property, plant, and equipment, net while the non-service cost components are included in Other, net and Regulatory assets. For Generation and the Utility Registrants, the service cost and non-service cost components are included in Operating and maintenance expense and Property, plant, and equipment, net in their consolidated financial statements.


	Three Months Ended June 30,				Six Months Ended June 30,
Pension and OPEB Costs	2021		2020		2021		2020
Exelon	$	101	$	105	$	196	$	203
Generation	30		32		56		59
ComEd	32		28		64		57
PECO	2		1		4		3
BGE	16		16		31		31
PHI	12		18		24		35
Pepco	2		4		3		7
DPL	1		2		1		4
ACE	3		3		5		7

Defined Contribution Savings Plans

The Registrants participate in various 401(k) defined contribution savings plans that are sponsored by Exelon. The plans are qualified under applicable sections of the IRC and allow employees to contribute a portion of their pre-tax and/or after-tax income in accordance with specified guidelines. All Registrants match a percentage of the employee contributions up to certain limits. The following table presents the matching contributions to the savings plans for the three and six months ended June 30, 2021 and 2020, respectively.


	Three Months Ended June 30,				Six Months Ended June 30,
Savings Plans Matching Contributions	2021		2020		2021		2020
Exelon	$	36	$	34	$	69	$	67
Generation	13		14		26		27
ComEd	10		9		18		16
PECO	3		2		6		5
BGE	2		2		4		4
PHI	4		3		7		6
Pepco	1		1		2		2
DPL	1		—		2		1
ACE	1		1		1		1