v3.25.2
Equity - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Beginning balance     $ 10,666  
Net deferred gain from cash flow hedges $ 0 $ 1 0 $ 4
Reclassification of deferred gain from cash flow hedges realized in net income (1) 0 (1) 0
Other comprehensive income (loss) 0 3 0 5
Ending balance 11,019 10,354 11,019 10,354
Accumulated Other Comprehensive Loss        
Beginning balance (17) (33) (17) (35)
Net deferred gain from cash flow hedges 0 1 0 4
Prior service cost 1 2 1 2
Actuarial losses (gain) 0 0 0 1
Other comprehensive income (loss) 0 3 0 5
Ending balance (17) (30) (17) (30)
CERC        
Beginning balance     6,268  
Reclassification of deferred gain from cash flow hedges realized in net income 0 0 0 0
Other comprehensive income (loss) 0 0 0 (1)
Ending balance 6,009 6,233 6,009 6,233
CERC | Accumulated Other Comprehensive Loss        
Beginning balance 17 15 17 16
Net deferred gain from cash flow hedges 0 0 0 0
Prior service cost 1 0 1 0
Actuarial losses (gain) (1) 0 (1) (1)
Other comprehensive income (loss) 0 0 0 (1)
Ending balance $ 17 $ 15 17 15
Other Pension, Postretirement and Supplemental Plans | Accumulated Other Comprehensive Loss        
Remeasurement of pension and other postretirement plans     0 (2)
Other Pension, Postretirement and Supplemental Plans | CERC | Accumulated Other Comprehensive Loss        
Remeasurement of pension and other postretirement plans     $ 0 $ 0