v3.26.1
Document and Entity Information Document
May 06, 2026
Document Information [Line Items]  
Document Type 8-K
Document Period End Date May 06, 2026
Entity File Number 001-16169
Entity Registrant Name EXELON CORPORATION
Entity Tax Identification Number 23-2990190
Entity Incorporation, State or Country Code PA
Entity Address, Address Line One 10 South Dearborn Street
Entity Address, Address Line Two P.O. Box 805379
Entity Address, City or Town Chicago
Entity Address, State or Province IL
Entity Address, Postal Zip Code 60680-5379
City Area Code (800)
Local Phone Number 483-3220
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, without par value
Trading Symbol EXC
Security Exchange Name NASDAQ
Entity Central Index Key 0001109357
Amendment Flag false
Entity Emerging Growth Company false
Commonwealth Edison Co [Member]  
Document Information [Line Items]  
Document Type 8-K
Entity File Number 001-01839
Entity Registrant Name COMMONWEALTH EDISON COMPANY
Entity Tax Identification Number 36-0938600
Entity Incorporation, State or Country Code IL
Entity Address, Address Line One 10 South Dearborn Street
Entity Address, City or Town Chicago
Entity Address, State or Province IL
Entity Address, Postal Zip Code 60603-2300
City Area Code (312)
Local Phone Number 394-4321
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Central Index Key 0000022606
Amendment Flag false
Entity Emerging Growth Company false
PECO Energy Co [Member]  
Document Information [Line Items]  
Document Type 8-K
Entity File Number 000-16844
Entity Registrant Name PECO ENERGY COMPANY
Entity Tax Identification Number 23-0970240
Entity Incorporation, State or Country Code PA
Entity Address, Address Line One P.O. Box 8699
Entity Address, Address Line Two 2301 Market Street
Entity Address, City or Town Philadelphia
Entity Address, State or Province PA
Entity Address, Postal Zip Code 19101-8699
City Area Code (215)
Local Phone Number 841-4000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Cumulative Preferred Security, Series D
Entity Central Index Key 0000078100
Amendment Flag false
Entity Emerging Growth Company false
Baltimore Gas and Electric Company [Member]  
Document Information [Line Items]  
Document Type 8-K
Entity File Number 001-01910
Entity Registrant Name BALTIMORE GAS AND ELECTRIC COMPANY
Entity Tax Identification Number 52-0280210
Entity Incorporation, State or Country Code MD
Entity Address, Address Line One 2 Center Plaza
Entity Address, Address Line Two 110 West Fayette Street
Entity Address, City or Town Baltimore
Entity Address, State or Province MD
Entity Address, Postal Zip Code 21201-3708
City Area Code (410)
Local Phone Number 234-5000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Central Index Key 0000009466
Amendment Flag false
Entity Emerging Growth Company false
Pepco Holdings LLC [Member]  
Document Information [Line Items]  
Document Type 8-K
Entity File Number 001-31403
Entity Registrant Name PEPCO HOLDINGS LLC
Entity Tax Identification Number 52-2297449
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 701 Ninth Street, N.W.
Entity Address, City or Town Washington
Entity Address, State or Province DC
Entity Address, Postal Zip Code 20068-0001
City Area Code (202)
Local Phone Number 872-2000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Central Index Key 0001135971
Amendment Flag false
Entity Emerging Growth Company false
Potomac Electric Power Company [Member]  
Document Information [Line Items]  
Document Type 8-K
Entity File Number 001-01072
Entity Registrant Name POTOMAC ELECTRIC POWER COMPANY
Entity Tax Identification Number 53-0127880
Entity Address, Address Line One 701 Ninth Street, N.W.
Entity Address, City or Town Washington
Entity Address, State or Province DC
Entity Address, Postal Zip Code 20068-0001
City Area Code (202)
Local Phone Number 872-2000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Central Index Key 0000079732
Amendment Flag false
Entity Emerging Growth Company false
Potomac Electric Power Company [Member] | DISTRICT OF COLUMBIA  
Document Information [Line Items]  
Entity Incorporation, State or Country Code DC
Potomac Electric Power Company [Member] | VIRGINIA  
Document Information [Line Items]  
Entity Incorporation, State or Country Code VA
Delmarva Power and Light Company [Member]  
Document Information [Line Items]  
Document Type 8-K
Entity File Number 001-01405
Entity Registrant Name DELMARVA POWER & LIGHT COMPANY
Entity Tax Identification Number 51-0084283
Entity Address, Address Line One 500 North Wakefield Drive
Entity Address, City or Town Newark
Entity Address, State or Province DE
Entity Address, Postal Zip Code 19702-5440
City Area Code (202)
Local Phone Number 872-2000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Central Index Key 0000027879
Amendment Flag false
Entity Emerging Growth Company false
Delmarva Power and Light Company [Member] | VIRGINIA  
Document Information [Line Items]  
Entity Incorporation, State or Country Code VA
Delmarva Power and Light Company [Member] | DELAWARE  
Document Information [Line Items]  
Entity Incorporation, State or Country Code DE
Atlantic City Electric Company [Member]  
Document Information [Line Items]  
Document Type 8-K
Entity File Number 001-03559
Entity Registrant Name ATLANTIC CITY ELECTRIC COMPANY
Entity Tax Identification Number 21-0398280
Entity Incorporation, State or Country Code NJ
Entity Address, Address Line One 500 North Wakefield Drive
Entity Address, City or Town Newark
Entity Address, State or Province DE
Entity Address, Postal Zip Code 19702-5440
City Area Code (202)
Local Phone Number 872-2000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Central Index Key 0000008192
Amendment Flag false
Entity Emerging Growth Company false