Debt and Credit Agreements (Tables)

3 Months Ended

Mar. 31, 2023

Debt Disclosure [Abstract]

Schedule of Commercial Paper Borrowings

The following table reflects the Registrants' commercial paper programs supported by the revolving credit agreements and bilateral credit agreements as of March 31, 2023 and December 31, 2022. As of March 31, 2023 and December 31, 2022, ACE had no commercial paper borrowings:

	Outstanding Commercial Paper as of				Average Interest Rate on Commercial Paper Borrowings as of
Commercial Paper Issuer	March 31, 2023		December 31, 2022		March 31, 2023		December 31, 2022
Exelon(a)	$	807	$	1,938	5.12	%	4.77	%
ComEd	409		427		5.09	%	4.71	%
PECO	145		239		5.04	%	4.71	%
BGE	243		409		5.24	%	4.81	%
PHI(b)	—		414		—	%	4.78	%
Pepco	—		299		—	%	4.79	%
DPL	—		115		—	%	4.76	%

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(a)Exelon Corporate had $10 million and $449 million in outstanding commercial paper borrowings as of March 31, 2023 and December 31, 2022, 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 1.075	%

Schedule of Long-term Debt Instruments [Table Text Block]

During the three months ended March 31, 2023, the following long-term debt was issued:

Company	Type	Interest Rate	Maturity	Amount	Use of Proceeds
Exelon	Notes	5.15%	March 15, 2028	$1,000	Repay existing indebtedness and for general corporate purposes.
Exelon	Notes	5.30%	March 15, 2033	850	Repay existing indebtedness and for general corporate purposes.
Exelon	Notes	5.60%	March 15, 2053	650	Repay existing indebtedness and for general corporate purposes.
ComEd	First Mortgage Bonds, Series 134	4.90%	February 1, 2033	400	Repay outstanding commercial paper obligations and to fund other general corporate purposes.
ComEd	First Mortgage Bonds Series 135	5.30%	February 1, 2053	575	Repay outstanding commercial paper obligations and to fund other general corporate purposes.
Pepco(a)	First Mortgage Bonds	5.30%	March 15, 2033	85	Repay existing indebtedness and for general corporate purposes.
Pepco	First Mortgage Bonds	5.40%	March 15, 2038	40	Repay existing indebtedness and for general corporate purposes.
Pepco	First Mortgage Bonds	5.57%	March 15, 2053	125	Repay existing indebtedness and for general corporate purposes.
DPL(b)	First Mortgage Bonds	5.30%	March 15, 2033	60	Repay existing indebtedness and for general corporate purposes.
DPL	First Mortgage Bonds	5.57%	March 15, 2053	65	Repay existing indebtedness and for general corporate purposes.
ACE	First Mortgage Bonds	5.57%	March 15, 2053	75	Repay existing indebtedness and for general corporate purposes.

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(a)On March 15, 2023, Pepco entered into a purchase agreement of First Mortgage Bonds of $100 million at 5.35% due on September 13, 2033. The closing date of the issuance is expected to occur in September 2023.

(b)On March 15, 2023, DPL entered into a purchase agreement of First Mortgage Bonds of $340 million, $75 million, and $110 million at 5.45%, 5.55% and 5.72% due on November 8, 2033, November 8, 2038, and November 8, 2053, respectively. The closing date of the issuance is expected to occur in November 2023.