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Related-Party Transactions (Tables)
9 Months Ended
Sep. 30, 2022
Related Party Transactions [Abstract]  
Schedule of Related-Party Transactions

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September 30, 

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December 31, 

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(in millions)

    

2022

    

2021

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Prepaid insurance1

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$

160

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$

52

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Long-term insurance receivable due from affiliate

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334

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1

Reflected in "Prepaid expenses" on SCE's consolidated balance sheets.