Debt and Credit Agreements (All Registrants) (Tables)

3 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Schedule of Commercial Paper Borrowings

The following table reflects the Registrants' commercial paper programs supported by the revolving credit agreements at March 31, 2024 and December 31, 2023.

	Outstanding Commercial Paper at				Average Interest Rate on Commercial Paper Borrowings at
Commercial Paper Issuer	March 31, 2024		December 31, 2023		March 31, 2024		December 31, 2023
Exelon(a)	$	1,307	$	1,624	5.53	%	5.58	%
ComEd	$	330	$	202	5.43	%	5.53	%
PECO	$	—	$	165	—	%	5.57	%
BGE	$	406	$	336	5.57	%	5.59	%
PHI(b)	$	—	$	394	—	%	5.60	%
Pepco	$	—	$	132	—	%	5.59	%
DPL	$	—	$	63	—	%	5.60	%
ACE	$	—	$	199	—	%	5.60	%

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(a)Exelon Corporate had $571 million and $527 million in outstanding commercial paper borrowings at March 31, 2024 and December 31, 2023, respectively.

(b)Represents the consolidated amounts of Pepco, DPL, and ACE.

Schedule of Revolving Credit Agreements

Exelon Corporate and the Utility Registrants each have a 5-year revolving credit facility. The following table reflects the credit agreements:

Borrower	Aggregate Bank Commitment		Interest Rate
Exelon Corporate	$	900	SOFR plus 1.275	%
ComEd	$	1,000	SOFR plus 1.000	%
PECO	$	600	SOFR plus 0.900	%
BGE	$	600	SOFR plus 0.900	%
Pepco	$	300	SOFR plus 1.075	%
DPL	$	300	SOFR plus 1.000	%
ACE	$	300	SOFR plus 1.000	%

Schedule of Long-term Debt Instruments

During the three months ended March 31, 2024, the following long-term debt was issued:

Company	Type	Interest Rate	Maturity	Amount	Use of Proceeds
Exelon	Notes	5.15%	March 15, 2029	$650	Repay Exelon SMBC Term Loan, outstanding commercial paper, and for general corporate purposes.
Exelon	Notes	5.45%	March 15, 2034	$650	Repay Exelon SMBC Term Loan, outstanding commercial paper, and for general corporate purposes.
Exelon	Notes	5.60%	March 15, 2053	$400	Repay Exelon SMBC Term Loan, outstanding commercial paper, and for general corporate purposes.
Pepco	First Mortgage Bonds	5.20%	March 15, 2034	$375	Refinance existing indebtedness, refinance outstanding commercial paper obligations, and for general corporate purposes.
Pepco	First Mortgage Bonds	5.50%	March 15, 2054	$300	Refinance existing indebtedness, refinance outstanding commercial paper obligations, and for general corporate purposes.
DPL	First Mortgage Bonds	5.24%	March 20, 2034	$100	Repay existing indebtedness and for general corporate purposes.
DPL	First Mortgage Bonds	5.55%	March 20, 2054	$75	Repay existing indebtedness and for general corporate purposes.
ACE(a)	First Mortgage Bonds	5.55%	March 20, 2054	$75	Repay existing indebtedness and for general corporate purposes.

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(a)On March 20, 2024, ACE entered into a purchase agreement of First Mortgage Bonds of $75 million and $100 million at 5.29% and 5.49% due on August 28, 2034 and August 28, 2039, respectively. The closing date of the issuance is expected to occur in August 2024.