Retirement Benefits (All Registrants)

12 Months Ended

Dec. 31, 2023

Retirement Benefits [Abstract]

Retirement Benefits (All Registrants)

Retirement Benefits (All Registrants)

Exelon sponsors defined benefit pension and OPEB plans. Substantially all non-union employees and electing union employees hired on or after January 1, 2001 participate in cash balance pension plans. Effective January 1, 2009, substantially all newly-hired union-represented employees participate in cash balance pension plans. Effective February 1, 2018 for most newly-hired BSC non-represented, non-craft, employees, January 1, 2021 for most newly-hired utility management employees, and for certain newly-hired union employees pursuant to their collective bargaining agreements, these newly-hired employees are not eligible for pension benefits, and will instead be eligible to receive an enhanced non-discretionary employer contribution in an Exelon defined contribution savings plan. Effective January 1, 2018, most newly-hired non-represented, non-craft, employees are not eligible for OPEB benefits and employees represented by Local 614 are not eligible for retiree health care benefits. Effective January 1, 2021, most non-represented, non-craft, employees who are under the age of 40 are not eligible for retiree health care benefits. Effective January 1, 2022, management employees retiring on or after that date are no longer eligible for retiree life insurance benefits.

Effective February 1, 2022, in connection with the separation, pension and OPEB obligations and assets for current and former employees of the Constellation business and certain other former employees of Exelon and its subsidiaries transferred to pension and OPEB plans and trusts maintained by Constellation or its subsidiaries. The Exelon New England Union Employees Pension Plan and Constellation Mystic Power, LLC Union Employees Pension Plan Including Plan A and Plan B were transferred. The following OPEB plans were also transferred: Constellation Mystic Power, LLC Post-Employment Medical Savings Account Plan; Exelon New England Union Post-Employment Medical Savings Account Plan; and the Nine Mile Point Nuclear Station, LLC Medical Care and Prescription Drug Plan for Retired Employees.

As a result of the separation, Exelon restructured certain of its qualified pension plans. Pension obligations and assets for current and former employees continuing with Exelon and who were participants in the Exelon Employee Pension Plan for Clinton, TMI, and Oyster Creek, Pension Plan of Constellation Energy Nuclear Group, LLC, and Nine Mile Point Pension Plan were merged into the Pension Plan of Constellation Energy

Group, Inc, which was subsequently renamed, Exelon Pension Plan (EPP). Exelon employees who participated in these plans prior to the separation now participate in the EPP. The merging of the plans did not change the benefits offered to the plan participants and, thus, had no impact on Exelon's pension obligations.

The tables below show the pension and OPEB plans in which current and former employees of each operating company participated as of December 31, 2023:

	Operating Company(a)
Name of Plan:	ComEd	PECO	BGE	PHI	Pepco	DPL	ACE
Qualified Pension Plans:
Exelon Corporation Retirement Program (ECRP)	X	X	X	X	X	X	X
Exelon Corporation Pension Plan for Bargaining Unit Employees (PPBU)	X
Exelon Pension Plan (EPP)	X	X	X	X	X	X	X
Pepco Holdings LLC Retirement Plan (PHI Qualified)	X	X	X	X	X	X	X
Non-Qualified Pension Plans:
Exelon Corporation Supplemental Pension Benefit Plan and 2000 Excess Benefit Plan (SPBP)	X	X		X
Exelon Corporation Supplemental Management Retirement Plan (SMRP)	X	X	X	X
Constellation Energy Group, Inc. Senior Executive Supplemental Plan			X	X
Constellation Energy Group, Inc. Supplemental Pension Plan			X	X
Constellation Energy Group, Inc. Benefits Restoration Plan		X	X	X
Baltimore Gas & Electric Company Executive Benefit Plan			X
Baltimore Gas & Electric Company Manager Benefit Plan		X	X
Pepco Holdings LLC 2011 Supplemental Executive Retirement Plan				X	X	X	X
Conectiv Supplemental Executive Retirement Plan				X		X	X
Pepco Holdings LLC Combined Executive Retirement Plan				X	X

	Operating Company(a)
Name of Plan:	ComEd	PECO	BGE	PHI	Pepco	DPL	ACE
OPEB Plans:
PECO Energy Company Retiree Medical Plan (East)	X	X	X	X	X	X	X
Exelon Corporation Health Care Program (West)	X	X	X	X	X	X	X
Pepco Holdings LLC Welfare Plan for Retirees (PHI PRW)	X	X	X	X	X	X	X
Exelon Corporation Employees’ Life Insurance Plan	X	X	X
Exelon Corporation Health Reimbursement Arrangement Plan	X	X	X
BGE Retiree Medical Plan	X	X	X	X	X	X
BGE Retiree Dental Plan			X
Exelon Retiree Medical Plan of Constellation Energy Nuclear Group, LLC	X		X	X
Exelon Retiree Dental Plan of Constellation Energy Nuclear Group, LLC	X		X	X

__________

(a)Employees generally remain in their legacy benefit plans when transferring between operating companies.

Exelon’s traditional and cash balance pension plans are intended to be tax-qualified defined benefit plans. Exelon has elected that the trusts underlying these plans be treated as qualified trusts under the IRC. If certain conditions are met, Exelon can deduct payments made to the qualified trusts, subject to certain IRC limitations.

Benefit Obligations, Plan Assets, and Funded Status

As of February 1, 2022, in connection with the separation, Exelon's pension and OPEB plans were remeasured. The remeasurement and separation resulted in a decrease to the Pension obligation, net of plan assets, of $921 million and a decrease to the OPEB obligation of $893 million. Additionally, AOCI decreased by $1,994 million (after-tax) and Regulatory assets and liabilities increased by $14 million and $5 million, respectively. Key assumptions were held consistent with the year end December 31, 2021 assumptions with the exception of the discount rate.

During the first quarter of 2023, Exelon received an updated valuation of its pension and OPEB to reflect actual census data as of January 1, 2023. This valuation resulted in an increase to the pension obligation of $27 million and an increase to the OPEB obligations of $2 million. Additionally, AOCI increased by $10 million (after-tax) and Regulatory assets and liabilities increased by $18 million and $1 million, respectively.

The following tables provide a rollforward of the changes in the benefit obligations and plan assets of Exelon for the most recent two years for all plans combined:

	Pension Benefits				OPEB
	2023		2022		2023		2022
Change in benefit obligation:
Net benefit obligation as of the beginning of year	$	10,677	$	14,236	$	1,884	$	2,502
Service cost	155		236		26		41
Interest cost	578		439		101		76
Plan participants’ contributions	—		—		27		26
Actuarial loss (gain)(a)	406		(3,379)		55		(604)
Plan amendments	4		—		—		—
Settlements	(42)		—		—		—
Gross benefits paid	(790)		(855)		(185)		(157)
Net benefit obligation as of the end of year	$	10,988	$	10,677	$	1,908	$	1,884

	Pension Benefits				OPEB
	2023		2022		2023		2022
Change in plan assets:
Fair value of net plan assets as of the beginning of year	$	9,521	$	12,165	$	1,351	$	1,665
Actual return on plan assets	638		(2,359)		108		(225)
Employer contributions	75		570		54		42
Plan participants’ contributions	—		—		27		26
Gross benefits paid	(790)		(855)		(185)		(157)
Settlements	(42)		—		—		—
Fair value of net plan assets as of the end of year	$	9,402	$	9,521	$	1,355	$	1,351

__________

(a)The pension and OPEB losses in 2023 primarily reflect a decrease in the discount rate. The pension and OPEB gains in 2022 primarily reflect an increase in the discount rate.

Exelon presents its benefit obligations and plan assets net on its Consolidated Balance Sheets within the following line items:

	Pension Benefits				OPEB
	2023		2022		2023		2022
Other current liabilities	$	15	$	47	$	26	$	26
Pension obligations	1,571		1,109		—		—
Non-pension postretirement benefit obligations	—		—		527		507
Unfunded status (net benefit obligation less plan assets)	$	1,586	$	1,156	$	553	$	533

The following table provides the ABO and fair value of plan assets for all pension plans with an ABO in excess of plan assets. Information for pension and OPEB plans with projected benefit obligations (PBO) and accumulated postretirement benefit obligation (APBO), respectively, in excess of plan assets has been disclosed in the Obligations and Plan Assets table above as all pension and OPEB plans are underfunded.

	Exelon
	2023		2022
ABO	$	10,376	$	10,108
Fair value of net plan assets	9,279		9,427

Components of Net Periodic Benefit Costs

The majority of the 2023 pension benefit cost for the Exelon-sponsored plans is calculated using an expected long-term rate of return on plan assets of 7.00% and a discount rate of 5.53%. The majority of the 2023 OPEB cost is calculated using an expected long-term rate of return on plan assets of 6.50% for funded plans and a discount rate of 5.51%.

A portion of the net periodic benefit cost for all plans is capitalized in the Consolidated Balance Sheets. The following table presents the components of Exelon’s net periodic benefit costs, prior to capitalization, for the years ended December 31, 2023, 2022, and 2021.

	Pension Benefits						OPEB
	2023		2022		2021		2023		2022		2021
Components of net periodic benefit cost:
Service cost	$	155	$	236	$	294	$	26	$	41	$	51
Interest cost	578		439		406		101		76		69
Expected return on assets	(755)		(822)		(843)		(83)		(99)		(99)
Amortization of:
Prior service cost (credit)	2		2		2		(10)		(19)		(25)
Actuarial loss (gain)	166		295		399		(2)		12		27
Settlement and other charges	20		—		7		—		—		1
Net periodic benefit cost	$	166	$	150	$	265	$	32	$	11	$	24

Cost Allocation to Exelon Subsidiaries

All Registrants account for their participation in Exelon’s pension and OPEB plans by applying multi-employer accounting. Exelon allocates costs related to its pension and OPEB plans to its subsidiaries based on both active and retired employee participation in each plan.

The amounts below represent the Registrants' allocated pension and OPEB costs (benefit). 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 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.

For the Years Ended December 31,	Exelon		ComEd		PECO		BGE		PHI		Pepco		DPL		ACE
2023	$	198	$	26	$	(14)	$	56	$	99	$	34	$	18	$	13
2022	161		60		(9)		44		53		9		3		12
2021	288		129		8		64		49		6		2		11

Components of AOCI and Regulatory Assets

Exelon recognizes the overfunded or underfunded status of defined benefit pension and OPEB plans as an asset or liability on its Consolidated Balance Sheets, with offsetting entries to AOCI and Regulatory assets (liabilities). A portion of current year actuarial (gains) losses and prior service costs (credits) is capitalized in Exelon’s Consolidated Balance Sheets to reflect the expected regulatory recovery of these amounts, which would otherwise be recorded to AOCI. The following tables provide the components of AOCI and Regulatory assets (liabilities) for Exelon for the years ended December 31, 2023, 2022, and 2021 for all plans combined. The tables include amounts related to Generation prior to the separation.

	Pension Benefits						OPEB
	2023		2022		2021		2023		2022		2021
Changes in plan assets and benefit obligations recognized in AOCI and Regulatory assets (liabilities):
Current year actuarial loss (gain)	$	523	$	(226)	$	(700)	$	30	$	(271)	$	(270)
Amortization of actuarial (loss) gain	(166)		(295)		(598)		2		(12)		(37)
Separation of Constellation	—		(2,631)		—		—		(43)		—
Current year prior service cost	4		—		—		—		—		—
Amortization of prior service (cost) credit	(2)		(2)		(3)		10		19		34
Settlements	(20)		—		(27)		—		—		(1)
Total recognized in AOCI and Regulatory assets (liabilities)	$	339	$	(3,154)	$	(1,328)	$	42	$	(307)	$	(274)
Total recognized in AOCI	$	99	$	(2,719)	$	(747)	$	4	$	(74)	$	(130)
Total recognized in Regulatory assets (liabilities)	$	240	$	(435)	$	(581)	$	38	$	(233)	$	(144)

The following table provides the components of gross AOCI and Regulatory assets (liabilities) for Exelon that have not been recognized as components of periodic benefit cost as of December 31, 2023 and 2022, respectively, for all plans combined:

	Pension Benefits				OPEB
	2023		2022		2023		2022
Prior service cost (credit)	$	21	$	19	$	(45)	$	(55)
Actuarial loss (gain)	3,948		3,611		(101)		(133)
Total	$	3,969	$	3,630	$	(146)	$	(188)
Total included in AOCI	$	972	$	873	$	(17)	$	(21)
Total included in Regulatory assets (liabilities)	$	2,997	$	2,757	$	(129)	$	(167)

Average Remaining Service Period

For pension benefits, Exelon amortizes its unrecognized prior service costs (credits) and certain actuarial (gains) losses, as applicable, based on participants’ average remaining service periods.

For OPEB, Exelon amortizes its unrecognized prior service costs (credits) over participants’ average remaining service period to benefit eligibility age and amortizes certain actuarial (gains) losses over participants’ average remaining service period to expected retirement. The resulting average remaining service periods for pension and OPEB were as follows:

	2023	2022	2021
Pension plans	12.6	12.5	12.4
OPEB plans:
Benefit Eligibility Age	8.1	7.9	7.6
Expected Retirement	9.3	9.1	8.8

Assumptions

The measurement of the plan obligations and costs of providing benefits under Exelon’s defined benefit and OPEB plans involves various factors, including the development of valuation assumptions and inputs and accounting policy elections. The measurement of benefit obligations and costs is impacted by several assumptions and inputs, as shown below, among other factors. When developing the required assumptions, Exelon considers historical information as well as future expectations.

Expected Rate of Return. In determining the EROA, Exelon considers historical economic indicators (including inflation and GDP growth) that impact asset returns, as well as expectations regarding future long-term capital market performance, weighted by Exelon’s target asset class allocations.

Mortality. The mortality assumption is composed of a base table that represents the current expectation of life expectancy of the population adjusted by an improvement scale that attempts to anticipate future improvements in life expectancy. For the years ended December 31, 2023 and 2022, Exelon’s mortality assumption utilizes the SOA 2019 base table (Pri-2012) and MP-2021 improvement scale adjusted to use Proxy SSA ultimate improvement rates.

For Exelon, the following assumptions were used to determine the benefit obligations for the plans as of December 31, 2023 and 2022. Assumptions used to determine year-end benefit obligations are the assumptions used to estimate the subsequent year’s net periodic benefit costs.

	Pension Benefits				OPEB
	2023		2022		2023		2022
Discount rate(a)	5.19	%	5.53	%	5.17	%	5.51	%
Investment crediting rate(b)	5.03	%	5.07	%	N/A		N/A
Rate of compensation increase	3.75	%	3.75	%	3.75	%	3.75	%
Mortality table	Pri-2012 table with MP- 2021 improvement scale (adjusted)		Pri-2012 table with MP- 2021 improvement scale (adjusted)		Pri-2012 table with MP- 2021 improvement scale (adjusted)		Pri-2012 table with MP- 2021 improvement scale (adjusted)
Health care cost trend on covered charges	N/A		N/A		Initial and ultimate trend rate of 5.00%		Initial and ultimate trend rate of 5.00%

__________

(a)The discount rates above represent the blended rates used to determine the majority of Exelon’s pension and OPEB obligations. Certain benefit plans used individual rates, which range from 5.11% - 5.27% and 5.15% - 5.17% for pension and OPEB plans, respectively, as of December 31, 2023 and 5.46% - 5.60% and 5.49% - 5.51% for pension and OPEB plans, respectively, as of December 31, 2022.

(b)The investment crediting rate above represents a weighted average rate.

The following assumptions were used to determine the net periodic benefit cost for Exelon for the years ended December 31, 2023, 2022 and 2021: 

	Pension Benefits						OPEB
	2023		2022		2021		2023		2022		2021
Discount rate(a)	5.53	%	3.24	%	2.58	%	5.51	%	3.20	%	2.51	%
Investment crediting rate(b)	5.07	%	3.75	%	3.72	%	N/A		N/A		N/A
Expected return on plan assets(c)	7.00	%	7.00	%	7.00	%	6.50	%	6.44	%	6.46	%
Rate of compensation increase	3.75	%	3.75	%	3.75	%	3.75	%	3.75	%	3.75	%
Mortality table	Pri-2012 table with MP- 2021 improvement scale (adjusted)		Pri-2012 table with MP- 2021 improvement scale (adjusted)		Pri-2012 table with MP - 2020 improvement scale (adjusted)		Pri-2012 table with MP- 2021 improvement scale (adjusted)		Pri-2012 table with MP- 2021 improvement scale (adjusted)		Pri-2012 table with MP - 2020 improvement scale (adjusted)
Health care cost trend on covered charges	N/A		N/A		N/A		Initial and ultimate rate of 5.00%		Initial and ultimate rate of 5.00%		Initial and ultimate rate of 5.00%

__________

(a)The discount rates above represent the blended rates used to establish the majority of Exelon’s pension and OPEB costs. Certain benefit plans used individual rates, which range from 5.46%-5.60% and 5.49%-5.51% for pension and OPEB plans, respectively, for the year ended December 31, 2023; 2.55%-3.24% and 2.84%-3.20% for pension and OPEB plans; respectively, for the year ended December 31, 2022; and 2.11%-2.73% and 2.45%-2.63% for pension and OPEB plans, respectively, for the year ended December 31, 2021.

(b)The investment crediting rate above represents a weighted average rate.

(c)Not applicable to pension and OPEB plans that do not have plan assets.

Contributions

Exelon allocates contributions related to its ECRP and PPBU pension plans and East and West OPEB plans to its subsidiaries based on accounting cost. For the EPP pension plan, PHI Qualified, and PHI PRW plans, pension and OPEB contributions are allocated to the subsidiaries based on employee participation (both active and retired). For Exelon, in connection with the separation, additional qualified pension contributions of $207 million and $33 million were completed on February 1, 2022 and March 2, 2022, respectively. The following table provides contributions to the pension and OPEB plans:

	Pension Benefits						OPEB
	2023		2022		2021		2023		2022		2021
Exelon	$	75	$	570	$	343	$	54	$	42	$	63
ComEd	24		176		174		17		8		22
PECO	1		15		17		—		3		1
BGE	—		48		57		19		20		24
PHI	8		69		39		16		9		9
Pepco	1		3		2		11		8		9
DPL	2		1		1		2		—		—
ACE	—		7		3		3		—		—

Management considers various factors when making pension funding decisions, including actuarially determined minimum contribution requirements under ERISA, contributions required to avoid benefit restrictions and at-risk status as defined by the Pension Protection Act of 2006 (the "Act"), management of the pension obligation, and regulatory implications. The Act requires the attainment of certain funding levels to avoid benefit restrictions (such as an inability to pay lump sums or to accrue benefits prospectively), and at-risk status (which triggers higher minimum contribution requirements and participant notification). The projected contributions below reflect a funding strategy to make annual contributions with the objective of achieving 100% funded status on an ABO basis over time. This funding strategy helps minimize volatility of future period required pension contributions. Based on this funding strategy and current market conditions, which are subject to change, Exelon’s estimated annual qualified pension contributions will be approximately $93 million in 2024. Unlike the qualified pension plans, Exelon’s non-qualified pension plans are not funded, given they are not subject to statutory minimum contribution requirements.

While OPEB plans are also not subject to statutory minimum contribution requirements, Exelon does fund certain of its plans. For Exelon's funded OPEB plans, contributions generally equal accounting costs, however, Exelon’s management has historically considered several factors in determining the level of contributions to its OPEB plans, including liabilities management, levels of benefit claims paid, and regulatory implications (amounts deemed prudent to meet regulatory expectations and best assure continued rate recovery). The amounts below include benefit payments related to unfunded plans.

The following table provides all Registrants' planned contributions to the qualified pension plans, planned benefit payments to non-qualified pension plans, and planned contributions to OPEB plans in 2024:

	Qualified Pension Plans		Non-Qualified Pension Plans		OPEB
Exelon	$	93	$	15	$	47
ComEd	3		1		18
PECO	2		1		1
BGE	17		1		14
PHI	66		8		11
Pepco	—		1		10
DPL	—		—		—
ACE	7		—		—

Estimated Future Benefit Payments

Estimated future benefit payments to participants in all of the pension plans and postretirement benefit plans as of December 31, 2023 were:

	Pension Benefits		OPEB
2024	$	782	$	152
2025	783		151
2026	795		152
2027	800		151
2028	792		151
2029 through 2033	3,977		730
Total estimated future benefits payments through 2033	$	7,929	$	1,487

Plan Assets

Investment Strategy. On a regular basis, Exelon evaluates its investment strategy to ensure plan assets will be sufficient to pay plan benefits when due. As part of this ongoing evaluation, Exelon may make changes to its targeted asset allocation and investment strategy.

Exelon has developed and implemented a liability hedging investment strategy for its qualified pension plans that has reduced the volatility of its pension assets relative to its pension liabilities. Exelon is likely to continue to gradually increase the liability hedging portfolio as the funded status of its plans improves. The overall objective is to achieve attractive risk-adjusted returns that will balance the liquidity requirements of the plans’ liabilities while striving to minimize the risk of significant losses. Trust assets for Exelon’s OPEB plans are managed in a diversified investment strategy that prioritizes maximizing liquidity and returns while minimizing asset volatility.

Actual asset returns have an impact on the costs reported for the Exelon-sponsored pension and OPEB plans. The actual asset returns across Exelon’s pension and OPEB plans for the year ended December 31, 2023 were 7.73% and 9.20%, respectively, compared to an expected long-term return assumption of 7.00% and 6.50%, respectively. Exelon used an EROA of 7.00% and 6.50% to estimate its 2024 pension and OPEB costs, respectively.

Exelon’s pension and OPEB plan target asset allocations as of December 31, 2023 and 2022 were as follows:

	December 31, 2023				December 31, 2022
Asset Category	Pension Benefits		OPEB		Pension Benefits		OPEB
Equity securities	28	%	44	%	28	%	44	%
Fixed income securities	44	%	41	%	44	%	41	%
Alternative investments(a)	28	%	15	%	28	%	15	%
Total	100	%	100	%	100	%	100	%

__________

(a)Alternative investments include private equity, hedge funds, real estate, and private credit.

Concentrations of Credit Risk. Exelon evaluated its pension and OPEB plans’ asset portfolios for the existence of significant concentrations of credit risk as of December 31, 2023. Types of concentrations that were evaluated include, but are not limited to, investment concentrations in a single entity, type of industry, foreign country, and individual fund. As of December 31, 2023, there were no significant concentrations (defined as greater than 10% of plan assets) of risk in Exelon’s pension and OPEB plan assets.

Fair Value Measurements

The following tables present pension and OPEB plan assets measured and recorded at fair value in Exelon's Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of December 31, 2023 and 2022:

	December 31, 2023										December 31, 2022
	Level 1		Level 2		Level 3		Not Subject to Leveling		Total		Level 1		Level 2		Level 3		Not Subject to Leveling		Total
Pension plan assets(a)
Cash and cash equivalents	$	267	$	—	$	—	$	—	$	267	$	200	$	—	$	—	$	—	$	200
Equities(b)	1,513		—		1		694		2,208		1,448		—		—		782		2,230
Fixed income:
U.S. Treasury and agencies	1,291		184		—		—		1,475		986		178		—		—		1,164
State and municipal debt	—		42		—		—		42		—		44		—		—		44
Corporate debt	—		1,792		9		—		1,801		—		1,975		12		—		1,987
Other(b)	—		79		—		788		867		—		63		—		744		807
Fixed income subtotal	1,291		2,097		9		788		4,185		986		2,260		12		744		4,002
Private equity	—		—		—		1,166		1,166		—		—		—		1,169		1,169
Hedge funds	—		—		—		578		578		—		—		—		760		760
Real estate	—		—		—		760		760		—		—		—		821		821
Private credit	—		—		—		626		626		—		—		—		658		658
Pension plan assets subtotal	$	3,071	$	2,097	$	10	$	4,612	$	9,790	$	2,634	$	2,260	$	12	$	4,934	$	9,840
OPEB plan assets(a)
Cash and cash equivalents	$	45	$	—	$	—	$	—	$	45	$	39	$	—	$	—	$	—	$	39
Equities	315		1		—		270		586		305		1		—		273		579
Fixed income:
U.S. Treasury and agencies	15		54		—		—		69		17		45		—		—		62
State and municipal debt	—		7		—		—		7		—		8		—		—		8
Corporate debt	—		44		—		—		44		—		44		—		—		44
Other	175		4		—		206		385		161		5		—		187		353
Fixed income subtotal	190		109		—		206		505		178		102		—		187		467
Hedge funds	—		—		—		109		109		—		—		—		120		120
Real estate	—		—		—		88		88		—		—		—		106		106
Private credit	—		—		—		22		22		—		—		—		39		39
OPEB plan assets subtotal	$	550	$	110	$	—	$	695	$	1,355	$	522	$	103	$	—	$	725	$	1,350
Total pension and OPEB plan assets(c)	$	3,621	$	2,207	$	10	$	5,307	$	11,145	$	3,156	$	2,363	$	12	$	5,659	$	11,190

__________

(a)See Note 17—Fair Value of Financial Assets and Liabilities for a description of levels within the fair value hierarchy.

(b)Includes derivative instruments of $51 million and $11 million for the years ended December 31, 2023 and 2022, respectively, which have total notional amounts of $3,351 million and $3,434 million as of December 31, 2023 and 2022, respectively. The notional principal amounts for these instruments provide one measure of the transaction volume outstanding as of the fiscal years ended and do not represent the amount of Exelon's exposure to credit or market loss.

(c)Excludes net liabilities of $388 million and $318 million as of December 31, 2023 and 2022, respectively, which include certain derivative assets that have notional amounts of $59 million and $69 million as of December 31, 2023 and 2022, respectively. These items are required to reconcile to the fair value of net plan assets and consist primarily of receivables or payables related to pending securities sales and purchases, interest and dividends receivable, and repurchase agreement obligations. The repurchase agreements generally have maturities ranging from 3 - 6 months.

The following table presents the reconciliation of Level 3 assets and liabilities for Exelon measured at fair value for pension and OPEB plans for the years ended December 31, 2023 and 2022:

	Fixed Income		Equities		Private Credit		Total
Pension Assets
Balance as of January 1, 2023	$	12	$	—	$	—	$	12
Actual return on plan assets:
Relating to assets still held as of the reporting date	—		—		—		—
Relating to assets sold during the period	—		—		—		—
Purchases, sales and settlements:
Purchases	—		—		—		—
Settlements(a)	—		—		—		—
Level 3 transfers (out) in	(3)		1		—		(2)
Balance as of December 31, 2023	$	9	$	1	$	—	$	10

	Fixed Income		Equities		Private Credit		Total
Pension Assets
Balance as of January 1, 2022	$	337	$	2	$	130	$	469
Actual return on plan assets:
Relating to assets still held as of the reporting date	(9)		—		(15)		(24)
Relating to assets sold during the period	(19)		—		13		(6)
Purchases, sales and settlements:
Purchases	—		—		7		7
Settlements(a)	(1)		—		(52)		(53)
Level 3 transfers out(b)	(296)		(2)		(83)		(381)
Balance as of December 31, 2022	$	12	$	—	$	—	$	12

__________

(a)Represents cash settlements only.

(b)In 2022, transfers relate to changes in investment structure for certain investments due to the separation.

Valuation Techniques Used to Determine Fair Value

The techniques used to fair value the pension and OPEB assets invested in cash equivalents are the same as the valuation techniques used to determine the fair value of financial assets. See Cash Equivalents in Note 17 - Fair Value of Financial Assets and Liabilities for further information. Below outlines the techniques used to fair value the pension and OPEB assets invested in equities, fixed income, derivatives, private credit, private equity, and real estate investments.

Equities. These investments consist of individually held equity securities, equity mutual funds, and equity commingled funds in domestic and foreign markets. With respect to individually held equity securities, the trustees obtain prices from pricing services, whose prices are generally obtained from direct feeds from market

exchanges, which Exelon is able to independently corroborate. Equity securities held individually, including real estate investment trusts, rights, and warrants, are primarily traded on exchanges that contain only actively traded securities due to the volume trading requirements imposed by these exchanges. The equity securities that are held directly by the trust funds are valued based on quoted prices in active markets and categorized as Level 1. Certain equity securities have been categorized as Level 2 because they are based on evaluated prices that reflect observable market information, such as actual trade information or similar securities. Certain private placement equity securities are categorized as Level 3 because they are not publicly traded and are priced using significant unobservable inputs.

Equity commingled funds and mutual funds are maintained by investment companies, and fund investments are held in accordance with a stated set of fund objectives. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For equity commingled funds and mutual funds that are not publicly quoted, the fund administrators value the funds using the NAV per fund share, derived from the quoted prices in active markets on the underlying securities and are not classified within the fair value hierarchy. These investments can typically be redeemed monthly or more frequently, with 30 or less days of notice and without further restrictions.

Fixed income. For fixed income securities, which consist primarily of corporate debt securities, U.S. government securities, foreign government securities, municipal bonds, asset and mortgage-backed securities, commingled funds, mutual funds, and derivative instruments, the trustees obtain multiple prices from pricing vendors whenever possible, which enables cross-provider validations in addition to checks for unusual daily movements. A primary price source is identified based on asset type, class, or issue for each security. With respect to individually held fixed income securities, the trustees monitor prices supplied by pricing services and may use a supplemental price source or change the primary price source of a given security if the portfolio managers challenge an assigned price and the trustees determine another price source is considered to be preferable. Exelon has obtained an understanding of how these prices are derived, including the nature and observability of the inputs used in deriving such prices. Additionally, Exelon selectively corroborates the fair values of securities by comparison to other market-based price sources. Investments in U.S. Treasury securities have been categorized as Level 1 because they trade in highly-liquid and transparent markets. Certain private placement fixed income securities have been categorized as Level 3 because they are priced using certain significant unobservable inputs and are typically illiquid. The remaining fixed income securities, including certain other fixed income investments, are based on evaluated prices that reflect observable market information, such as actual trade information of similar securities, adjusted for observable differences and are categorized as Level 2.

Other fixed income investments primarily consist of fixed income commingled funds and mutual funds, which are maintained by investment companies and hold fund investments in accordance with a stated set of fund objectives. The values of some of these funds are publicly quoted. For mutual funds which are publicly quoted, the funds are valued based on quoted prices in active markets and have been categorized as Level 1. For fixed income commingled funds and mutual funds that are not publicly quoted, the fund administrators value the funds using the NAV per fund share, derived from the quoted prices in active markets of the underlying securities and are not classified within the fair value hierarchy. These investments typically can be redeemed monthly or more frequently, with 30 or less days of notice and without further restrictions.

Derivative instruments. These instruments, consisting primarily of futures and swaps to manage risk, are recorded at fair value. Over-the-counter derivatives are valued daily, based on quoted prices in active markets and trade in open markets, and have been categorized as Level 1. Derivative instruments other than over-the-counter derivatives are valued based on external price data of comparable securities and have been categorized as Level 2.

Private credit. Private credit investments primarily consist of investments in private debt strategies. These investments are generally less liquid assets with an underlying term of 3 to 5 years and are intended to be held to maturity. The fair value of these investments is determined by the fund manager or administrator using a combination of valuation models including cost models, market models, and income models and typically cannot be redeemed until maturity of the term loan. For managed private credit funds, the fair value is determined using a combination of valuation models including cost models, market models, and income models and typically cannot be redeemed until maturity of the term loan. Managed private credit fund investments are not classified within the fair value hierarchy because their fair value is determined using NAV or its equivalent as a practical expedient.

Private equity. These investments include those in limited partnerships that invest in operating companies that are not publicly traded on a stock exchange such as leveraged buyouts, growth capital, venture capital, distressed investments, and investments in natural resources. These investments typically cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date, which is based on Exelon's understanding of the investment funds. Private equity valuations are reported by the fund manager and are based on the valuation of the underlying investments, which include unobservable inputs such as cost, operating results, discounted future cash flows, and market based comparable data. These valuation inputs are unobservable. The fair value of private equity investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.

Real estate. These investments are funds with a direct investment in pools of real estate properties. These funds are reported by the fund manager and are generally based on independent appraisals of the underlying investments from sources with professional qualifications, typically using a combination of market based comparable data and discounted cash flows. These valuation inputs are unobservable. Certain real estate investments cannot be redeemed and are generally liquidated over a period of 8 to 10 years from the initial investment date, which is based on Exelon's understanding of the investment funds. The remaining liquid real estate investments are generally redeemable from the investment vehicle quarterly, with 30 to 90 days of notice. The fair value of real estate investments is determined using NAV or its equivalent as a practical expedient, and therefore, these investments are not classified within the fair value hierarchy.

Pension and OPEB assets also include investments in hedge funds. Hedge fund investments include those that employ a broad range of strategies to enhance returns and provide additional diversification. The fair value of hedge funds is determined using NAV or its equivalent as a practical expedient, and therefore, hedge funds are not classified within the fair value hierarchy. Exelon has the ability to redeem these investments at NAV or its equivalent subject to certain restrictions that may include a lock-up period or a gate.

Defined Contribution Savings Plan

The Registrants participate in a 401(k) defined contribution savings plan that is sponsored by Exelon. The plan is qualified under applicable sections of the IRC and allows 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 employer contributions and employer matching contributions to the savings plan for the years ended December 31, 2023, 2022, and 2021:

For the Years Ended December 31,	Exelon		ComEd		PECO		BGE		PHI	Pepco		DPL		ACE
2023	$	109	$	47	$	15	$	12	16	$	4	$	3	$	2
2022	91		39		13		11		14	4		3		2
2021	90		35		12		12		14	4		3		2