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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2024
Accounting Policies [Abstract] |
Schedule of Cash and Cash Equivalents | The cash equivalents were as follows:
| Edison International |  | SCE
| December 31,
(in millions) | 2024 |  | 2023 |  | 2024 |  | 2023
Money market funds | $ | 101 |  |  | $ | 199 |  |  | $ | — |  |  | $ | 78 |
Schedule of Cash, Cash Equivalents and Restricted Cash | The following table sets forth the cash, cash equivalents and restricted cash included in the consolidated statements of cash flows:
| December 31,
(in millions) | 2024 |  | 2023
Edison International: |  |  |
Cash and cash equivalents | $ | 193 |  |  | $ | 345 |
Short-term restricted cash 1 | 40 |  |  | 35 |
Long-term restricted cash 2 | 451 |  |  | 152 |
Total cash, cash equivalents and restricted cash | $ | 684 |  |  | $ | 532 |
SCE: |  |  |
Cash and cash equivalents | $ | 78 |  |  | $ | 214 |
Short-term restricted cash 1 | 36 |  |  | 33 |
Long-term restricted cash 2 | 451 |  |  | 151 |
Total cash, cash equivalents and restricted cash | $ | 565 |  |  | $ | 398 |
1 Includes SCE Recovery Funding LLC's restricted cash for payments of senior secured recovery bonds and is reflected in "Other current assets" on Edison International's and SCE's consolidated balance sheets. 2 The SCE amount represents cash collected for customer-funded wildfire self-insurance and is reflected in "Other long-term assets" on Edison International's and SCE's consolidated balance sheets. See Note 12 for further information.
Schedule of Changes in Allowance for Uncollectible Accounts | The following table sets forth the changes in allowance for uncollectible accounts for SCE:
(in millions) | Customers |  | All others |  | Total
Balance at December 31, 2021 | $ | 293 |  |  | $ | 16 |  |  | $ | 309 |
Current period provision for uncollectible accounts 1 | 111 |  |  | 11 |  |  | 122 |
Write-offs, net of recoveries | (70) |  |  | (7) |  |  | (77) |
Balance at December 31, 2022 | $ | 334 |  |  | $ | 20 |  |  | $ | 354 |
Current period provision for uncollectible accounts 1 | 109 |  |  | 6 |  |  | 115 |
Write-offs, net of recoveries | (96) |  |  | (9) |  |  | (105) |
Balance at December 31, 2023² | $ | 347 |  |  | $ | 17 |  |  | $ | 364 |
Current period provision for uncollectible accounts 1 | 278 |  |  | 12 |  |  | 290 |
Write-offs, net of recoveries | (253) |  |  | (11) |  |  | (264) |
Balance at December 31, 2024² | $ | 372 |  |  | $ | 18 |  |  | $ | 390 |
1 This includes $222 million, $78 million, and $40 million of incremental costs for the years ended December 31, 2024, 2023, and 2022, respectively, which were probable of recovery from customers and recorded as regulatory assets. 2 Approximately $43 million and $4 million of allowance for uncollectible accounts are included in "Other long-term assets" on SCE's consolidated balance sheets as of December 31, 2024 and 2023 respectively.
Schedule of Property, Plant and Equipment Useful Lives | Estimated useful lives authorized by the CPUC in the 2021 GRC and weighted average useful lives of SCE's property, plant and equipment, are as follows:
| Estimated Useful Lives | Weighted Average Useful Lives
Generation plant | 10 years to 54 years | 39 years
Distribution plant | 20 years to 67 years | 50 years
Transmission plant | 30 years to 65 years | 53 years
General plant and other | 5 years to 60 years | 19 years
Summary of Related Debt and Equity | The following table summarizes SCE's AFUDC related to debt and equity:
| Years ended December 31,
(in millions) | 2024 |  | 2023 |  | 2022
Debt AFUDC 1 | $ | 82 |  |  | $ | 74 |  |  | $ | 53 |
Equity AFUDC 2 | 187 |  |  | 157 |  |  | 137 |
1 Reflected as a reduction of "Interest expense" on the consolidated statements of income. 2 Reflected in "Other income" on the consolidated statements of income.
Schedule of Reconciliation of the Changes in ARO Liability | The following table summarizes the changes in SCE's ARO liability:
| December 31,
(in millions) | 2024 |  | 2023
Beginning balance | $ | 2,666 |  |  | $ | 2,754 |
Accretion 1 | 137 |  |  | 144 |
Revisions | (2) |  |  | (3) |
Liabilities settled | (221) |  |  | (229) |
Ending balance | $ | 2,580 |  |  | $ | 2,666 |
1 An ARO represents the present value of a future obligation. Accretion is an increase in the liability to account for the time value of money resulting from discounting.
Schedule of Amortization of Deferred Financing Costs | Amortization of deferred financing costs charged to interest expense is as follows:
| Edison International |  | SCE
| Years ended December 31,
(in millions) | 2024 |  | 2023 |  | 2022 |  | 2024 |  | 2023 |  | 2022
Amortization of deferred financing costs charged to interest expense | $ | 41 |  |  | $ | 39 |  |  | $ | 37 |  |  | $ | 34 |  |  | $ | 32 |  |  | $ | 31 |
Schedule of EPS Attributable to Edison International Common Shareholders | EPS attributable to Edison International common shareholders was computed as follows:
| Years ended December 31,
(in millions, except per-share amounts) | 2024 |  | 2023 |  | 2022
Basic earnings per share: |  |  |  |  |
Net income available to common shareholders | $ | 1,284 |  |  | $ | 1,197 |  |  | $ | 612 |
Weighted average common shares outstanding | 386 |  |  | 383 |  |  | 381 |
Basic earnings per share | $ | 3.33 |  |  | $ | 3.12 |  |  | $ | 1.61 |
Diluted earnings per share: |  |  |  |  |
Net income available to common shareholders | $ | 1,284 |  |  | $ | 1,197 |  |  | $ | 612 |
Income impact of assumed conversions | 1 |  |  | 1 |  |  | 1 |
Net income available to common shareholders and assumed conversions | $ | 1,285 |  |  | $ | 1,198 |  |  | $ | 613 |
Weighted average common shares outstanding | 386 |  |  | 383 |  |  | 381 |
Incremental shares from assumed conversions | 2 |  |  | 2 |  |  | 2 |
Adjusted weighted average shares – diluted | 388 |  |  | 385 |  |  | 383 |
Diluted earnings per share | $ | 3.31 |  |  | $ | 3.11 |  |  | $ | 1.60 |

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