v3.26.1
Fair Value Measurements - Schedule of Fair Value by Level within the Fair Value Hierarchy (Details) - SCE - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Assets at fair value    
Derivative contracts, netting and collateral $ (1) $ 0
Derivative contracts, total 15 48
Money market funds and other 62 56
Nuclear decommissioning trusts 4,887 4,786
Total assets 4,964 4,890
Liabilities at fair value    
Derivative contracts, netting and collateral (46) (57)
Derivative contracts, total 0 0
Total liabilities 0 0
Net assets 4,964 4,890
Net assets , netting and collateral $ 45 $ 57
Percentage of equity investments located in the United States (as a percent) 70.00% 71.00%
Collateralized mortgage obligations and other asset backed securities $ 64 $ 60
Receivable (payables), net, related to investments (103) (251)
Level 1    
Assets at fair value    
Derivative contracts 0 0
Money market funds and other 45 34
Nuclear decommissioning trusts 3,145 3,081
Total assets 3,190 3,115
Liabilities at fair value    
Derivative contracts 0 0
Total liabilities 0 0
Net assets 3,190 3,115
Level 2    
Assets at fair value    
Derivative contracts 1 0
Money market funds and other 17 22
Nuclear decommissioning trusts 1,742 1,705
Total assets 1,760 1,727
Liabilities at fair value    
Derivative contracts 46 57
Total liabilities 46 57
Net assets 1,714 1,670
Level 3    
Assets at fair value    
Derivative contracts 15 48
Money market funds and other 0 0
Nuclear decommissioning trusts 0 0
Total assets 15 48
Liabilities at fair value    
Derivative contracts 0 0
Total liabilities 0 0
Net assets 15 48
Stocks    
Assets at fair value    
Nuclear decommissioning trusts 2,163 1,909
Stocks | Level 1    
Assets at fair value    
Nuclear decommissioning trusts 2,163 1,909
Stocks | Level 2    
Assets at fair value    
Nuclear decommissioning trusts 0 0
Stocks | Level 3    
Assets at fair value    
Nuclear decommissioning trusts 0 0
Fixed income    
Assets at fair value    
Nuclear decommissioning trusts 2,499 2,646
Fixed income | Level 1    
Assets at fair value    
Nuclear decommissioning trusts 844 981
Fixed income | Level 2    
Assets at fair value    
Nuclear decommissioning trusts 1,655 1,665
Fixed income | Level 3    
Assets at fair value    
Nuclear decommissioning trusts 0 0
Short-term investments, primarily cash equivalents    
Assets at fair value    
Nuclear decommissioning trusts 225 231
Short-term investments, primarily cash equivalents | Level 1    
Assets at fair value    
Nuclear decommissioning trusts 138 191
Short-term investments, primarily cash equivalents | Level 2    
Assets at fair value    
Nuclear decommissioning trusts 87 40
Short-term investments, primarily cash equivalents | Level 3    
Assets at fair value    
Nuclear decommissioning trusts $ 0 $ 0