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