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Leases (Lease Payments) (Details) - SCE
$ in Millions
Dec. 31, 2023
USD ($)
PPA Operating Leases  
Operating Leases  
2024 $ 111
2025 99
2026 89
2027 84
2026 84
Thereafter 782
Total lease payments 1,249
Amount representing interest 302
Lease liabilities 947
Other operating leases  
Operating Leases  
2024 55
2025 50
2026 46
2027 41
2026 36
Thereafter 111
Total lease payments 339
Amount representing interest 72
Lease liabilities $ 267