v3.26.1
Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Finite-Lived Assets    
Gross Value $ 8,307 $ 8,256
Accumulated Depreciation (808) (710)
Carrying Value 7,499 7,546
Electric generation    
Finite-Lived Assets    
Gross Value 7,514 7,522
Accumulated Depreciation (555) (481)
Carrying Value 6,959 7,041
Nuclear fuel    
Finite-Lived Assets    
Gross Value 517 403
Accumulated Depreciation (236) (213)
Carrying Value 281 190
Other property and equipment    
Finite-Lived Assets    
Gross Value 67 63
Accumulated Depreciation (12) (11)
Carrying Value 55 52
Capitalized software    
Finite-Lived Assets    
Gross Value 10 10
Accumulated Depreciation (5) (5)
Carrying Value 5 5
Construction work in progress    
Finite-Lived Assets    
Gross Value 199 258
Carrying Value $ 199 $ 258
Minimum | Electric generation    
Finite-Lived Assets    
Estimated Useful Life (years) 3 years  
Minimum | Nuclear fuel    
Finite-Lived Assets    
Estimated Useful Life (years) 1 year  
Minimum | Other property and equipment    
Finite-Lived Assets    
Estimated Useful Life (years) 3 years  
Minimum | Capitalized software    
Finite-Lived Assets    
Estimated Useful Life (years) 1 year  
Maximum | Electric generation    
Finite-Lived Assets    
Estimated Useful Life (years) 37 years  
Maximum | Nuclear fuel    
Finite-Lived Assets    
Estimated Useful Life (years) 6 years  
Maximum | Other property and equipment    
Finite-Lived Assets    
Estimated Useful Life (years) 24 years  
Maximum | Capitalized software    
Finite-Lived Assets    
Estimated Useful Life (years) 5 years