Entity Central Index Key Entity Central Index Key Entity Address, Address Line Two Entity Address, Address Line Two Entity Address, Address Line One Entity Address, Address Line One Trading Symbol Trading Symbol Entity File Number Entity File Number Soliciting Material Soliciting Material Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Address, Postal Zip Code Entity Address, Postal Zip Code Address Type [Domain] Address Type [Domain] Entity [Domain] Entity [Domain] City Area Code City Area Code Document Information [Line Items] Document Information [Line Items] Constellation Energy Generation, LLC [Member] Constellation Energy Generation, LLC [Member] Constellation Energy Generation, LLC[Member] Title of 12(b) Security Title of 12(b) Security Document Information, Document [Axis] Document Information, Document [Axis] Amendment Flag Amendment Flag Security Exchange Name Security Exchange Name Entity Registrant Name Entity Registrant Name Document Period End Date Document Period End Date Entity Addresses, Address Type [Axis] Entity Addresses, Address Type [Axis] Legal Entity [Axis] Legal Entity [Axis] Entity Tax Identification Number Entity Tax Identification Number Pre-commencement Issuer Tender Offer Pre-commencement Issuer Tender Offer Entity Address, City or Town Entity Address, City or Town Constellation Energy Co Constellation Energy Co [Member] Constellation Energy Co Former Address Former Address [Member] Local Phone Number Local Phone Number Document [Domain] Document [Domain] Written Communications Written Communications Cover page. Cover [Abstract] Document Type Document Type Document Information [Table] Document Information [Table] Entity Emerging Growth Company Entity Emerging Growth Company Entity Address, State or Province Entity Address, State or Province Pre-commencement Tender Offer Pre-commencement Tender Offer