v3.25.2
Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Loss, SCE (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
SCE:          
Beginning balance       $ 15,565  
Pension and PBOP:          
Other comprehensive income, net of tax $ 2 $ 1   2 $ 1
Ending Balance 16,686     16,686  
Accumulated Other Comprehensive Income          
Pension and PBOP:          
Other comprehensive income, net of tax 2 1      
Reclassified from accumulated other comprehensive loss          
Pension and PBOP:          
Reclassified from accumulated other comprehensive loss 1 1   1 1
SCE          
SCE:          
Beginning balance 22,875 21,097 $ 21,404 21,751 21,404
Pension and PBOP:          
Other comprehensive income, net of tax 1 0 1 1 1
Ending Balance 22,395 21,262 21,097 22,395 21,262
SCE | Accumulated Other Comprehensive Income          
SCE:          
Beginning balance (9) (11) (12) (9) (12)
Pension and PBOP:          
Other comprehensive income, net of tax 1   1    
Ending Balance (8) (11) $ (11) (8) (11)
SCE | Reclassified from accumulated other comprehensive loss          
Pension and PBOP:          
Reclassified from accumulated other comprehensive loss $ 1 $ 0   $ 1 $ 1