v3.25.2
Accumulated Other Comprehensive Income (Loss) - Schedule of Changes in Accumulated Other Comprehensive Loss, Edison International (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
Edison International:          
Beginning balance $ 18,797 $ 17,615 $ 17,944 $ 17,740 $ 17,944
Pension and PBOP:          
Other comprehensive income, net of tax 2 1   2 1
Ending Balance 18,861 17,868 17,615 18,861 17,868
Accumulated Other Comprehensive Income          
Edison International:          
Beginning balance 0 (9) (9) 0 (9)
Pension and PBOP:          
Other comprehensive income, net of tax 2 1      
Ending Balance 2 (8) $ (9) 2 (8)
Reclassified from accumulated other comprehensive loss          
Pension and PBOP:          
Reclassified from accumulated other comprehensive loss 1 1   1 1
Foreign currency translation adjustments          
Pension and PBOP:          
Foreign currency translation adjustments $ 1 $ 0   $ 1 $ 0