XML 18 R1.htm IDEA: XBRL DOCUMENT v3.19.3
Document and Entity Information Document
Nov. 20, 2019
Entity Emerging Growth Company false
Written Communications false
Document Period End Date Nov. 20, 2019
Document Type 8-K
Entity Central Index Key 0001109357
Title of 12(b) Security Common stock, without par value
Trading Symbol EXC
Security Exchange Name NASDAQ
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
Entity File Number 001-16169
Entity Registrant Name EXELON CORPORATION
Entity Tax Identification Number 23-2990190
City Area Code (800)
Local Phone Number 483-3220
Amendment Flag false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Exelon Generation Co L L C [Member]  
Entity Central Index Key 0001168165
Entity Incorporation, State or Country Code PA
Entity Address, Address Line One 300 Exelon Way
Entity Address, City or Town Kennett Square
Entity Address, State or Province PA
Entity Address, Postal Zip Code 19348-2473
Entity File Number 333-85496
Entity Registrant Name EXELON GENERATION COMPANY, LLC
Entity Tax Identification Number 23-3064219
City Area Code (610)
Local Phone Number 765-5959