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Debt and Credit Agreements (Tables) | 9 Months Ended
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Sep. 30, 2018
Debt Disclosure [Abstract] |
Schedule of First and Refunding Mortgage Bonds | During the nine months ended September 30, 2018, SCE issued the following first and refunding mortgage bonds:
Description | Month of Issuance |  | Rate |  | Maturity Date |  | Amount (in millions)
Series 2018A | March 2018 |  | 2.90 | % |  | 2021 |  | $ | 450 |
Series 2018B | March 2018 |  | 3.65 | % |  | 2028 |  | 400 |
Series 2018C 1 | March 2018 |  | 4.125 | % |  | 2048 |  | 400 |
Series 2018D | June 2018 |  | 3.40 | % |  | 2023 |  | 300 |
Series 2018C 1 | June 2018 |  | 4.125 | % |  | 2048 |  | 350 |
Series 2018E | August 2018 |  | 3.70 | % |  | 2025 |  | 300 |
Series 2018C 1 | August 2018 |  | 4.125 | % |  | 2048 |  | 550 |
1 | The aggregate principal amount of the Series 2018C bonds totaled $1.3 billion.

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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