Property, Plant, and Equipment - Schedule of Planned Retirements of Generation Capacity (Details)	Mar. 31, 2025 MW
Retirement of Generation Facilities [Line Items]
Net Capacity (MW)	5,163
Baldwin | East
Retirement of Generation Facilities [Line Items]
Net Capacity (MW)	1,185
Coleto Creek | Texas
Retirement of Generation Facilities [Line Items]
Net Capacity (MW)	650
Kincaid | East
Retirement of Generation Facilities [Line Items]
Net Capacity (MW)	1,108
Miami Fort | East
Retirement of Generation Facilities [Line Items]
Net Capacity (MW)	1,020
Newton | East
Retirement of Generation Facilities [Line Items]
Net Capacity (MW)	615
Edwards | Asset Closure
Retirement of Generation Facilities [Line Items]
Net Capacity (MW)	585