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Commitments and Contingencies - Additional Information (Power Purchase Agreements) (Details) - Power Purchase Agreement - SCE - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Long-Term Purchase Commitment [Line Items]      
2025 $ 25    
2026 140    
2027 274    
2028 381    
2029 450    
Thereafter 5,370    
Purchase cost $ 4,000 $ 4,500 $ 5,100