v3.26.1
Cover Page
 6 Months Ended
Jun. 30, 2026
shares
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
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
Title of 12(b) Security Common stock, without par value
Trading Symbol EXC
Security Exchange Name NASDAQ
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Large Accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock Shares Outstanding 1,032,253,967
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Entity Central Index Key 0001109357
Amendment Flag false
Commonwealth Edison Co  
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
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
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock Shares Outstanding 127,021,427
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Entity Central Index Key 0000022606
Amendment Flag false
PECO Energy Co  
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
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 2301 Market Street
Entity Address, Address Line Two P.O. Box 8699
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
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock Shares Outstanding 170,478,507
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Entity Central Index Key 0000078100
Amendment Flag false
Baltimore Gas and Electric Company  
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
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
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock Shares Outstanding 1,000
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Entity Central Index Key 0000009466
Amendment Flag false
Pepco Holdings LLC  
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
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
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Entity Central Index Key 0001135971
Amendment Flag false
Potomac Electric Power Company  
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
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
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock Shares Outstanding 100
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Entity Central Index Key 0000079732
Amendment Flag false
Delmarva Power and Light Company  
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
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
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock Shares Outstanding 1,000
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Entity Central Index Key 0000027879
Amendment Flag false
Atlantic City Electric Company  
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2026
Document Transition Report false
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
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock Shares Outstanding 8,546,017
Document Fiscal Year Focus 2026
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Entity Central Index Key 0000008192
Amendment Flag false
DISTRICT OF COLUMBIA | Potomac Electric Power Company  
Document Information [Line Items]  
Entity Incorporation, State or Country Code DC
VIRGINIA | Potomac Electric Power Company  
Document Information [Line Items]  
Entity Incorporation, State or Country Code VA
VIRGINIA | Delmarva Power and Light Company  
Document Information [Line Items]  
Entity Incorporation, State or Country Code VA
DELAWARE | Delmarva Power and Light Company  
Document Information [Line Items]  
Entity Incorporation, State or Country Code DE