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Leases - Future Lease Payments (Details) - SCE
$ in Millions
Dec. 31, 2024
USD ($)
PPA operating leases  
Operating Leases  
2025 $ 106
2026 89
2027 84
2028 84
2029 85
Thereafter 698
Total lease payments 1,146
Amount representing interest 265
Lease liabilities 881
Other operating leases  
Operating Leases  
2025 64
2026 58
2027 54
2028 48
2029 41
Thereafter 104
Total lease payments 369
Amount representing interest 76
Lease liabilities $ 293