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Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2025

Accounting Policies [Abstract]

Schedule of Cash, Cash Equivalents and Restricted Cash

The following table sets forth the cash, cash equivalents and restricted cash included in the condensed consolidated statements of cash flows:

			Edison International												SCE
(in millions)			September 30, 2025						December 31, 2024						September 30, 2025						December 31, 2024
Cash and cash equivalents1			$	364					$	193					$	305					$	78
Short-term restricted cash2			92						40						88						36
Long-term restricted cash3			441						451						441						451
Total cash, cash equivalents and restricted cash			$	897					$	684					$	834					$	565

1Cash equivalents consist of investments in money market funds. Generally, the carrying value of cash equivalents equals the fair value, as these investments have original maturities of three months or less.

2Includes SCE Recovery Funding LLC's restricted cash for payments of senior secured recovery bonds and cash collected for customer-funded wildfire self-insurance related to the Eaton Subrogation Settlement (see Note 12 for further information). Both are reflected in "Other current assets" on Edison International's and SCE's condensed consolidated balance sheets.

3Represents cash collected for customer-funded wildfire self-insurance and is reflected in "Other long-term assets" on Edison International's and SCE's condensed 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:

			Three months ended September 30, 2025																					Three months ended September 30, 2024
(in millions)			Customers						All others						Total3									Customers						All others						Total
Beginning balance			$	335					$	22					$	357								$	349					$	15					$	364
Current period provision for uncollectible accounts1			96						1						97									90						—						90
Write-offs, net of recoveries			(89)						(3)						(92)									(75)						(3)						(78)
Ending balance			$	342					$	20					$	362								$	364					$	12					$	376
			Nine months ended September 30, 2025																					Nine months ended September 30, 2024
(in millions)			Customers						All others						Total3									Customers						All others						Total
Beginning balance			$	372					$	18					$	390								$	347					$	17					$	364
Current period provision for uncollectible accounts2			256						10						266									204						4						208
Write-offs, net of recoveries			(286)						(8)						(294)									(187)						(9)						(196)
Ending balance			$	342					$	20					$	362								$	364					$	12					$	376

1This includes $76 million and $74 million of incremental costs, for the three months ended September 30, 2025 and 2024, respectively, which were probable of recovery from customers and recorded as regulatory assets.

2This includes $211 million and $170 million of incremental costs, for the nine months ended September 30, 2025 and 2024, respectively, which were probable of recovery from customers and recorded as regulatory assets.

3Approximately $41 million and $43 million of allowance for uncollectible accounts are included in "Other long-term assets" on SCE's condensed consolidated balance sheets as of September 30, 2025 and December 31, 2024, respectively.

Schedule of EPS Available to Edison International Common Shareholders

EPS available to Edison International common shareholders was computed as follows:

			Three months ended September 30,												Nine months ended September 30,
(in millions, except per-share amounts)			2025						2024						2025						2024
Basic earnings per share:
Net income available to Edison International common shareholders			$	832					$	516					$	2,611					$	944
Earnings allocated to participating securities			—						—						(1)						—
Income available to common shareholders			$	832					$	516					$	2,610					$	944
Weighted average common shares outstanding			385						387						385						386
Basic earnings per share			$	2.16					$	1.33					$	6.78					$	2.45
Diluted earnings per share:
Income available to common shareholders			$	832					$	516					$	2,610					$	944
Add back: Earnings allocated to participating securities			—						—						1						1
Net income available to Edison International common shareholders			$	832					$	516					$	2,611					$	945
Weighted average common shares outstanding			385						387						385						386
Effect of dilutive securities			1						3						1						2
Adjusted weighted average shares – diluted			386						390						386						388
Diluted earnings per share			$	2.16					$	1.32					$	6.76					$	2.44

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