v3.25.2
Segments - Schedule of Adjusted EBITDA and Reconciling Items (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
Reconciling Items:            
Interest expense and other finance charges $ (62)   $ (62)   $ (136) $ (121)
Income tax benefit (expense) (25)   (112)   27 (181)
Depreciation, amortization and accretion (70)   (75)   (144) (150)
Nuclear fuel amortization (18)   (28)   (44) (63)
Unrealized (gain) loss on commodity derivative contracts 92   91   (90) (44)
Nuclear decommissioning trust funds gain (loss), net 80   27   68 102
Stock-based and other long-term incentive compensation expense (18)   (14)   31 32
Gain (loss) on asset sales, net 9   561   11 885
Operational and other restructuring activities 0   (19)   (9) (21)
Noncontrolling interest 0   7   0 18
Other items (6)   (5)   (5) 8
Net Income (Loss) 72 $ (135) 458 $ 319 (63) 777
Operating Segments            
Adjusted EBITDA:            
Adjusted EBITDA 115   95   324 375
Operating Segments | PJM            
Adjusted EBITDA:            
Adjusted EBITDA 115   95   324 375
Reconciling Items:            
Interest expense and other finance charges 0   0   0 0
Operating Segments | Other            
Reconciling Items:            
Interest expense and other finance charges 0   0   0 0
Net Income (Loss) (1)   5   8 43
Corporate and Eliminations            
Reconciling Items:            
Interest expense and other finance charges (62)   (62)   (136) (121)
Net Income (Loss) $ (24)   $ (13)   $ (42) $ (42)