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Retirement of Generation Facilities - Summary of Planned Retirements of Generation Capacity (Details)
Dec. 31, 2023
MW
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 7,486
Baldwin | Sunset  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 1,185
Coleto Creek | Sunset  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 650
Edwards | Asset Closure  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 585
Joppa | Asset Closure  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 802
Joppa | Asset Closure  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 221
Kincaid | Sunset  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 1,108
Miami Fort | Sunset  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 1,020
Newton | Sunset  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 615
Zimmer | Asset Closure  
Property, Plant and Equipment [Line Items]  
Net Generation Capacity (MW) 1,300