v3.26.1
Variable Interest Entities (Schedule of VIE Information) (Details)
$ in Millions
1 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2026
USD ($)
MW
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Variable Interest Entity [Line Items]        
Proceeds from the sale of membership interests in VIEs | $ $ 9      
Deemed contribution from sale of membership interest | $   $ 87 $ 0 $ 35
Aviator Wind        
Variable Interest Entity [Line Items]        
Noncontrolling interest capacity (in MW)   525    
Class A - Tax Equity Membership        
Variable Interest Entity [Line Items]        
Proceeds from the sale of membership interests in VIEs | $ $ 56 $ 60 $ 0 $ 15
Variable Interest Entity, Primary Beneficiary | Aviator Wind Equity Holdings        
Variable Interest Entity [Line Items]        
Ownership interest (in percent)   51.00%    
Variable Interest Entity, Primary Beneficiary | Delta Solar Equity Holdings        
Variable Interest Entity [Line Items]        
Ownership interest (in percent)   50.00%    
Nameplate capacity (in MW)   24    
Variable Interest Entity, Primary Beneficiary | Newport Solar Holdings        
Variable Interest Entity [Line Items]        
Nameplate capacity (in MW)   180    
Variable Interest Entity, Primary Beneficiary | BG Solar Holdings        
Variable Interest Entity [Line Items]        
Nameplate capacity (in MW)   200    
Variable Interest Entity, Primary Beneficiary | HL Solar Holdings | Hart Township        
Variable Interest Entity [Line Items]        
Nameplate capacity (in MW)   120    
Variable Interest Entity, Primary Beneficiary | HL Solar Holdings | St. Clair County        
Variable Interest Entity [Line Items]        
Nameplate capacity (in MW)   96    
Variable Interest Entity, Primary Beneficiary | NWO Wind Equity Holdings        
Variable Interest Entity [Line Items]        
Ownership interest (in percent)   50.00%    
Variable Interest Entity, Primary Beneficiary | NWO Holdco        
Variable Interest Entity [Line Items]        
Nameplate capacity (in MW)   100