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Schedule I - Condensed Financial Information of Parent (Notes) (Details) $ / shares in Units, $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) $ / shares shares | Nov. 30, 2023 USD ($) $ / shares shares | Jun. 30, 2024 $ / shares shares | Mar. 31, 2024 $ / shares shares | Dec. 31, 2024 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) shares | Dec. 31, 2022 USD ($) | Dec. 31, 2018 USD ($) | May 31, 2024 USD ($)
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Commitment |  |  |  |  | $ 4,850 |  |  |  |
Outstanding borrowings |  |  |  |  | 1,705 |  |  |  |
Amount available |  |  |  |  | 3,139 |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Gain on shares acquired |  |  |  |  | $ 1 | $ 16 |  |  |
Redemption amount (in dollars per share) | $ / shares |  |  |  |  | $ 1,000 |  |  |  |
Redemption amount following change in criteria (in dollars per share) | $ / shares |  |  |  |  | $ 1,020 |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |
Other current liabilities | $ 1,538 |  |  |  | $ 1,439 | 1,538 |  |  |
Other deferred credits and other long-term liabilities | 3,258 |  |  |  | $ 3,566 | 3,258 |  |  |
SCE |  |  |  |  |  |  |  |  |
Basis of Presentation |  |  |  |  |  |  |  |  |
Weighted-average equity component authorization (as a percent) |  |  |  |  | 52.00% |  |  | 45.20% |
Weighted-average common equity component authorization period |  |  |  |  |  |  |  | 37 months |
Wildfire related charge incurred after tax |  |  |  |  |  |  |  | $ 1,800 |
Spot rate equity ratio |  |  |  |  |  |  |  | 47.70% |
Waiver threshold percent |  |  |  |  |  |  |  | 47.70% |
Weighted-average common equity component of total capitalization percent |  |  |  |  |  |  |  | 48.70% |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Covenant debt to total capitalization ratio |  |  |  |  | 0.65 |  |  |  |
Actual debt to capitalization ratio |  |  |  |  | 0.58 |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |
Other current liabilities | 1,535 |  |  |  | $ 1,495 | 1,535 |  |  |
Other deferred credits and other long-term liabilities | $ 3,206 |  |  |  | 3,518 | 3,206 |  |  |
Multi-year credit facilities | SCE |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Commitment |  |  |  |  | 3,350 |  |  |  |
Outstanding borrowings |  |  |  |  | 1,260 |  |  |  |
Amount available |  |  |  |  | $ 2,084 |  |  |  |
Contingent maximum available borrowing |  |  |  |  |  |  |  |  | $ 4,000
Preferred Stock |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  |  |  |  | $ 1,000 |  |  |  |
Series A Preferred Stock |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Average price shares acquired (in dollars per share) | $ / shares | $ 971 | $ 925 |  |  |  |  |  |  |
Preferred stock, shares outstanding (in shares) | shares |  |  |  |  | 1,159,317 |  |  |  |
Preferred stock, dividend rate, (as a percent) |  |  |  |  | 5.375% |  |  |  |
Common stock repurchased | shares | 29,186 | 61,497 |  |  |  |  |  |  |
Preferred stock current redemption amount | $ 28 | $ 57 |  |  |  | $ 28 |  |  |
Series B Preferred Stock |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Average price shares acquired (in dollars per share) | $ / shares | $ 955 | $ 904 | $ 967 | $ 952 |  |  |  |  |
Preferred stock, shares outstanding (in shares) | shares | 532,454 |  |  |  | 503,454 | 532,454 |  |  |
Preferred stock, dividend rate, (as a percent) |  |  |  |  | 5.00% |  |  |  |
Common stock repurchased | shares | 133,323 | 84,223 | 9,000 | 20,000 |  |  |  |  |
Preferred stock current redemption amount | $ 127 | $ 76 |  |  |  | $ 127 |  |  |
At-the-market Program (ATM) |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Aggregate sale price |  |  |  |  | $ 500 |  |  |  |
Parent Company |  |  |  |  |  |  |  |  |
Basis of Presentation |  |  |  |  |  |  |  |  |
Cash dividends received from consolidated subsidiaries |  |  |  |  | (1,400) | 1,400 | $ 1,300 |  |
Related Party Transactions |  |  |  |  |  |  |  |  |
Other current liabilities | 598 |  |  |  | 639 | 598 |  |  |
Other deferred credits and other long-term liabilities | 362 |  |  |  | 350 | 362 |  |  |
Parent Company | Related Party |  |  |  |  |  |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |
Expenses from services provided by SCE |  |  |  |  | 2 | 2 | 2 |  |
Interest expense from loans due to affiliates |  |  |  |  | 2 | 2 | $ 3 |  |
Prepaid insurance | 400 |  |  |  | 571 | 400 |  |  |
Other current liabilities | 185 |  |  |  | 186 | 185 |  |  |
Other deferred credits and other long-term liabilities | $ 112 |  |  |  | 98 | $ 112 |  |  |
Parent Company | 4.95% Senior Notes Due 2025 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 400 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 4.95% |  |  |  |
Parent Company | 4.70% Senior notes due 2025 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 400 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 4.70% |  |  |  |
Parent Company | 5.75% Senior Notes Due 2027 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 600 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 5.75% |  |  |  |
Parent Company | 4.125% Senior Notes Due 2028 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 550 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 4.125% |  |  |  |
Parent Company | 5.25% Senior Notes Due 2028 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 600 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 5.25% |  |  |  |
Parent Company | 6.95% senior notes due in 2029 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 550 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 6.95% |  |  |  |
Parent Company | 5.45% Senior note due 2029 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 500 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 5.45% |  |  |  |
Parent Company | 5.25% Senior Notes Due 2032 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 550 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 5.25% |  |  |  |
Parent Company | 8.125% Junior Subordinated Notes Due 2053 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 500 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 8.125% |  |  |  |
Parent Company | 7.875% junior subordinated notes due 2054 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  | $ 450 |  |  |  |
Interest rate on debt (as a percent) |  |  |  |  | 7.875% |  |  |  |

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