v3.26.1
Variable Interest Entities - Narrative (Details) - Constellation Energy Generation, LLC
Mar. 31, 2026
Dec. 31, 2025
EGRP    
Variable Interest Entity [Line Items]    
Equity ownership 51.00% 51.00%
Antelope Valley    
Variable Interest Entity [Line Items]    
Equity ownership 100.00% 100.00%
NER    
Variable Interest Entity [Line Items]    
Equity ownership 100.00% 100.00%