Edison International (EIX) 10-Q1 Nov 232023 Q3 Quarterly reportFinancial data

Company Profile

Cover Page

Cover Page - shares	9 Months Ended
Cover Page - shares	Sep. 30, 2023	Oct. 25, 2023
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	1-9936
Entity Registrant Name	EDISON INTERNATIONAL
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	95-4137452
Entity Address, Address Line One	2244 Walnut Grove Avenue
Entity Address, Address Line Two	(P.O. Box 976)
Entity Address, City or Town	Rosemead
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91770
City Area Code	(626)
Local Phone Number	302-2222
Title of 12(b) Security	Common Stock, no par value
Trading Symbol	EIX
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		383,568,713
Entity Central Index Key	0000827052
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Amendment Flag	false
Document Fiscal Year Focus	2023
SCE
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	false
Document Period End Date	Sep. 30, 2023
Document Transition Report	false
Entity File Number	1-2313
Entity Registrant Name	SOUTHERN CALIFORNIA EDISON COMPANY
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	95-1240335
Entity Address, Address Line One	2244 Walnut Grove Avenue
Entity Address, Address Line Two	(P.O. Box 800)
Entity Address, City or Town	Rosemead
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	91770
City Area Code	(626)
Local Phone Number	302-1212
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		434,888,104
Entity Central Index Key	0000092103
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Amendment Flag	false
Document Fiscal Year Focus	2023

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating revenue	$ 4,702	$ 5,228	$ 12,632	$ 13,204
Purchased power and fuel	1,988	2,485	4,453	4,826
Operation and maintenance	882	979	3,207	3,827
Wildfire-related claims, net of insurance recoveries	482	889	578	1,316
Wildfire Insurance Fund expense	54	54	159	160
Depreciation and amortization	665	738	1,971	1,922
Property and other taxes	139	128	428	374
Impairment, net of other operating income		(1)		60
Total operating expenses	4,210	5,272	10,796	12,485
Operating income (loss)	492	(44)	1,836	719
Interest expense	(433)	(302)	(1,186)	(819)
Other income	130	85	377	219
Income (loss) before income taxes	189	(261)	1,027	119
Income tax (benefit) expense	(23)	(187)	41	(235)
Net income (loss)	212	(74)	986	354
Less: Preference stock dividend requirements of SCE	30	27	88	78
Less: Preferred and preference stock dividend requirements	27	27	79	79
Net income (loss) attributable to Edison International common shareholders	$ 155	$ (128)	$ 819	$ 197
Basic earnings (loss) per share:
Weighted average shares of common stock outstanding	383	382	383	381
Basic earnings (loss) per common share attributable to Edison International common shareholders	$ 0.40	$ (0.33)	$ 2.14	$ 0.52
Diluted earnings (loss) per share:
Weighted average shares of common stock outstanding, including effect of dilutive securities	385	383	385	382
Diluted earnings (loss) per common share attributable to Edison International common shareholders	$ 0.40	$ (0.33)	$ 2.13	$ 0.52
SCE
Operating revenue	$ 4,687	$ 5,217	$ 12,586	$ 13,174
Purchased power and fuel	1,988	2,485	4,453	4,826
Operation and maintenance	854	977	3,170	3,781
Wildfire-related claims, net of insurance recoveries	479	880	575	1,307
Wildfire Insurance Fund expense	54	54	159	160
Depreciation and amortization	665	737	1,969	1,920
Property and other taxes	138	128	425	371
Impairment, net of other operating income		(1)		61
Total operating expenses	4,178	5,260	10,751	12,426
Operating income (loss)	509	(43)	1,835	748
Interest expense	(369)	(258)	(997)	(706)
Other income	128	71	375	210
Income (loss) before income taxes	268	(230)	1,213	252
Income tax (benefit) expense	(1)	(177)	96	(195)
Net income (loss)	269	(53)	1,117	447
Less: Preferred and preference stock dividend requirements	30	27	88	78
Net income (loss) attributable to Edison International common shareholders	$ 239	$ (80)	$ 1,029	$ 369

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net income (loss)	$ 212	$ (74)	$ 986	$ 354
Other comprehensive income, net of tax:
Pension and postretirement benefits other than pensions		1	1	7
Foreign currency translation adjustments			2
Other comprehensive income, net of tax		1	3	7
Comprehensive income (loss)	212	(73)	989	361
Less: Comprehensive income attributable to noncontrolling interests	30	27	88	78
Comprehensive income (loss) attributable to Edison International	182	(100)	901	283
SCE
Net income (loss)	269	(53)	1,117	447
Other comprehensive income, net of tax:
Pension and postretirement benefits other than pensions		1		5
Other comprehensive income, net of tax		1		5
Comprehensive income (loss)	$ 269	$ (52)	$ 1,117	$ 452

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
ASSETS
Cash and cash equivalents	$ 446	$ 914
Receivables, less allowances for uncollectible accounts at respective dates	2,363	1,695
Accrued unbilled revenue	929	641
Inventory	505	474
Prepaid expenses	102	248
Regulatory assets	2,408	2,497
Wildfire Insurance Fund contributions	204	204
Other current assets	278	397
Total current assets	7,235	7,070
Nuclear decommissioning trusts	3,943	3,948
Other investments	81	55
Total investments	4,024	4,003
Utility property, plant and equipment, less accumulated depreciation and amortization	54,852	53,274
Nonutility property, plant and equipment, less accumulated depreciation at respective dates	202	212
Total property, plant and equipment	55,054	53,486
Regulatory assets	8,774	8,181
Wildfire Insurance Fund contributions	2,002	2,155
Operating lease right-of-use assets	1,292	1,442
Long-term insurance receivables	549	465
Other long-term assets	1,234	1,239
Total long-term assets	13,851	13,482
Total assets	80,164	78,041
LIABILITIES AND EQUITY
Short-term debt	1,005	2,015
Current portion of long-term debt	2,939	2,614
Accounts payable	2,108	2,359
Wildfire-related claims	150	121
Customer deposits	175	167
Regulatory liabilities	717	964
Current portion of operating lease liabilities	179	506
Other current liabilities	1,754	1,601
Total current liabilities	9,027	10,347
Long-term debt	29,532	27,025
Deferred income taxes and credits	6,507	6,149
Pensions and benefits	402	422
Asset retirement obligations	2,695	2,754
Regulatory liabilities	8,570	8,211
Operating lease liabilities	1,113	936
Wildfire-related claims	1,583	1,687
Other deferred credits and other long-term liabilities	3,164	2,988
Total deferred credits and other liabilities	24,034	23,147
Total liabilities	62,593	60,519
Commitments and contingencies (Note 12)
Preferred / preference stock	1,978	1,978
Common stock, no par value, including additional paid-in capital	6,301	6,200
Accumulated other comprehensive loss	(8)	(11)
Retained earnings	7,399	7,454
Total Edison International's shareholders' equity	15,670	15,621
Noncontrolling interests - preference stock of SCE	1,901	1,901
Total equity	17,571	17,522
Total liabilities and equity	80,164	78,041
SCE Recovery Funding LLC
ASSETS
Other current assets	78	45
Regulatory assets	1,571	834
LIABILITIES AND EQUITY
Current portion of long-term debt	54	29
Regulatory liabilities	22	33
Other current liabilities	26	4
Long-term debt	1,539	809
SCE
ASSETS
Cash and cash equivalents	317	766
Receivables, less allowances for uncollectible accounts at respective dates	2,335	1,675
Accrued unbilled revenue	929	638
Inventory	505	474
Prepaid expenses	101	292
Regulatory assets	2,408	2,497
Wildfire Insurance Fund contributions	204	204
Other current assets	269	384
Total current assets	7,068	6,930
Nuclear decommissioning trusts	3,943	3,948
Other investments	65	36
Total investments	4,008	3,984
Utility property, plant and equipment, less accumulated depreciation and amortization	54,852	53,274
Nonutility property, plant and equipment, less accumulated depreciation at respective dates	196	206
Total property, plant and equipment	55,048	53,480
Regulatory assets	8,774	8,181
Wildfire Insurance Fund contributions	2,002	2,155
Operating lease right-of-use assets	1,283	1,433
Other long-term assets	1,162	1,171
Total long-term assets	13,781	13,413
Total assets	79,905	77,807
LIABILITIES AND EQUITY
Short-term debt	616	925
Current portion of long-term debt	2,939	2,214
Accounts payable	2,105	2,351
Wildfire-related claims	150	121
Customer deposits	175	167
Regulatory liabilities	717	964
Current portion of operating lease liabilities	177	505
Other current liabilities	1,691	1,578
Total current liabilities	8,570	8,825
Long-term debt	25,459	24,044
Deferred income taxes and credits	7,944	7,545
Pensions and benefits	99	105
Asset retirement obligations	2,695	2,754
Regulatory liabilities	8,570	8,211
Operating lease liabilities	1,106	928
Wildfire-related claims	1,583	1,687
Other deferred credits and other long-term liabilities	3,104	2,919
Total deferred credits and other liabilities	25,101	24,149
Total liabilities	59,130	57,018
Commitments and contingencies (Note 12)
Preferred / preference stock	1,945	1,945
Common stock, no par value	2,168	2,168
Additional paid-in capital	8,447	8,441
Accumulated other comprehensive loss	(8)	(8)
Retained earnings	8,223	8,243
Total equity	20,775	20,789
Total liabilities and equity	79,905	77,807
SCE \| Nonrelated party
ASSETS
Long-term insurance receivables	129	139
SCE \| Affiliate
ASSETS
Long-term insurance receivables	431	334
SCE \| SCE Recovery Funding LLC
ASSETS
Regulatory assets	1,571	834
LIABILITIES AND EQUITY
Long-term debt	$ 1,539	$ 809

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Receivables, allowances for uncollectible accounts	$ 341	$ 347
Utility property, plant and equipment, accumulated depreciation	12,928	12,260
Nonutility property, plant and equipment, accumulated depreciation	112	106
Regulatory assets: non-current	8,774	8,181
Long-term debt	$ 29,532	$ 27,025
Preferred stock, shares authorized	50,000,000	50,000,000
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized	800,000,000	800,000,000
Common stock, shares issued	383,567,856	382,208,498
Common stock, shares outstanding	383,567,856	382,208,498
SCE Recovery Funding LLC
Regulatory assets: non-current	$ 1,571	$ 834
Long-term debt	$ 1,539	$ 809
Series A
Preferred stock, shares issued	1,250,000	1,250,000
Preferred stock, shares outstanding	1,250,000	1,250,000
Series B
Preferred stock, shares issued	750,000	750,000
Preferred stock, shares outstanding	750,000	750,000
SCE
Receivables, allowances for uncollectible accounts	$ 340	$ 347
Utility property, plant and equipment, accumulated depreciation	12,928	12,260
Nonutility property, plant and equipment, accumulated depreciation	98	94
Regulatory assets: non-current	8,774	8,181
Long-term debt	$ 25,459	$ 24,044
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized	560,000,000	560,000,000
Common stock, shares issued	434,888,104	434,888,104
Common stock, shares outstanding	434,888,104	434,888,104
SCE \| SCE Recovery Funding LLC
Regulatory assets: non-current	$ 1,571	$ 834
Long-term debt	$ 1,539	$ 809

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income	$ 986	$ 354
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	2,034	1,977
Allowance for equity during construction	(116)	(91)
Impairment		60
Deferred income taxes	53	(237)
Wildfire Insurance Fund amortization expense	159	160
Other	32	50
Nuclear decommissioning trusts	(94)	(81)
Changes in operating assets and liabilities:
Receivables	(692)	(807)
Inventory	(40)	(20)
Accounts payable	(186)	363
Tax receivables and payables	127	171
Other current assets and liabilities	(214)	(673)
Derivative assets and liabilities, net	(139)	(8)
Regulatory assets and liabilities, net	705	1,032
Wildfire-related insurance receivable	(84)	(383)
Wildfire-related claims	(75)	271
Other noncurrent assets and liabilities	90	(26)
Net cash provided by operating activities	2,546	2,112
Cash flows from financing activities:
Long-term debt issued, net of discount and issuance costs	4,678	3,347
Long-term debt repaid	(1,867)	(773)
Short-term debt issued	851	600
Short-term debt repaid	(1,944)	(993)
Common stock issued	16	10
Commercial paper borrowing, net	74	529
Dividends and distribution to noncontrolling interests	(87)	(83)
Common stock dividends paid	(833)	(787)
Preferred stock dividends paid	(105)	(99)
Other	97	81
Net cash provided by financing activities	880	1,832
Cash flows from investing activities:
Capital expenditures	(3,991)	(4,206)
Proceeds from sale of nuclear decommissioning trust investments	3,223	3,120
Purchases of nuclear decommissioning trust investments	(3,129)	(3,039)
Other	3	20
Net cash used in investing activities	(3,894)	(4,105)
Net decrease in cash, cash equivalents and restricted cash	(468)	(161)
Cash, cash equivalents and restricted cash at beginning of period	917	394
Cash, cash equivalents and restricted cash at end of period	449	233
SCE
Cash flows from operating activities:
Net income	1,117	447
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	2,022	1,971
Allowance for equity during construction	(116)	(91)
Impairment		61
Deferred income taxes	94	(197)
Wildfire Insurance Fund amortization expense	159	160
Other	14	38
Nuclear decommissioning trusts	(94)	(81)
Changes in operating assets and liabilities:
Receivables	(679)	(801)
Inventory	(40)	(20)
Accounts payable	(178)	367
Tax receivables and payables	127	152
Other current assets and liabilities	(211)	(754)
Derivative assets and liabilities, net	(139)	(8)
Regulatory assets and liabilities, net	705	1,032
Wildfire-related insurance receivable	(87)	(392)
Wildfire-related claims	(75)	271
Other noncurrent assets and liabilities	114	3
Net cash provided by operating activities	2,733	2,158
Cash flows from financing activities:
Long-term debt issued, net of discount and issuance costs	3,589	2,949
Long-term debt repaid	(1,467)	(373)
Short-term debt issued	496	0
Short-term debt repaid	(944)	(993)
Capital contributions from Edison International Parent		700
Commercial paper borrowing, net	137	508
Common stock dividends paid	(1,050)	(975)
Preferred stock dividends paid	(87)	(83)
Other	39	24
Net cash provided by financing activities	713	1,757
Cash flows from investing activities:
Capital expenditures	(3,990)	(4,205)
Proceeds from sale of nuclear decommissioning trust investments	3,223	3,120
Purchases of nuclear decommissioning trust investments	(3,129)	(3,039)
Other	2	20
Net cash used in investing activities	(3,894)	(4,104)
Net decrease in cash, cash equivalents and restricted cash	(448)	(189)
Cash, cash equivalents and restricted cash at beginning of period	766	280
Cash, cash equivalents and restricted cash at end of period	$ 318	$ 91

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Premium and net of discount and issuance costs	$ 48	$ 36
SCE
Premium and net of discount and issuance costs	$ 36	$ 34

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
Summary of Significant Accounting Policies	Sep. 30, 2023
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	Note 1. Organization and Basis of Presentation Edison International is the ultimate parent holding company of Southern California Edison Company ("SCE") and Edison Energy, LLC ("Edison Energy"). SCE is an investor-owned public utility primarily engaged in the business of supplying and delivering electricity to an approximately 50,000 square mile area of Southern California. Edison Energy is a global energy advisory firm providing integrated sustainability and energy solutions to commercial, industrial and institutional customers. Edison Energy's business activities are currently not material to report as a separate business segment. These combined notes to the consolidated financial statements apply to both Edison International and SCE unless otherwise described. Edison International's consolidated financial statements include the accounts of Edison International, SCE, and other controlled subsidiaries. References to Edison International refer to the consolidated group of Edison International and its subsidiaries. References to "Edison International Parent and Other" refer to Edison International Parent and its competitive subsidiaries and "Edison International Parent" refer to Edison International on a stand-alone basis, not consolidated with its subsidiaries. SCE's consolidated financial statements include the accounts of SCE, its controlled subsidiaries and a variable interest entity, SCE Recovery Funding LLC., of which SCE is the primary beneficiary. All intercompany transactions have been eliminated from the consolidated financial statements. Edison International's and SCE's significant accounting policies were described in the "Notes to Consolidated Financial Statements" included in Edison International's and SCE's combined Annual Report on Form 10-K for the year ended December 31, 2022 (the "2022 Form 10-K"). This quarterly report should be read in conjunction with the financial statements and notes included in the 2022 Form 10-K. In the opinion of management, all adjustments, consisting only of adjustments of a normal recurring nature, have been made that are necessary to fairly state the consolidated financial position, results of operations, and cash flows in accordance with accounting principles generally accepted in the United States ("GAAP") for the periods covered by this quarterly report on Form 10-Q. The results of operations for the interim periods presented are not necessarily indicative of the operating results for the full year. The December 31, 2022 financial statement data was derived from the audited financial statements, but does not include all disclosures required by GAAP for complete annual financial statements. Certain prior period amounts have been conformed to the current period's presentation, including the separate presentation of derivative assets and liabilities on Edison International's and SCE's consolidated statements of cash flows. Cash, Cash Equivalents and Restricted Cash Cash 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. The cash equivalents were as follows: Edison International SCE September 30, December 31, September 30, December 31, (in millions) 2023 2022 2023 2022 Money market funds $ 120 $ 784 $ — $ 647 Cash is temporarily invested until required for check clearing. Checks issued, but not yet paid by the financial institution, are reclassified from cash to accounts payable at the end of each reporting period. The following table sets forth the cash, cash equivalents and restricted cash included in the consolidated statements of cash flows: September 30, December 31, (in millions) 2023 2022 Edison International: Cash and cash equivalents $ 446 $ 914 Short-term restricted cash 1 3 3 Total cash, cash equivalents and restricted cash $ 449 $ 917 SCE: Cash and cash equivalents $ 317 $ 766 Short-term restricted cash 1 1 — Total cash, cash equivalents and restricted cash $ 318 $ 766 1 Reflected in "Other current assets" on Edison International's and SCE’s consolidated balance sheets. Allowance for Uncollectible Accounts The allowance for uncollectible accounts is recorded based on SCE's estimate of expected credit losses and adjusted over the life of the receivables as needed. Since the customer base of SCE is concentrated in Southern California and exposes SCE to a homogeneous set of economic conditions, the allowance is measured on a collective basis on the historical amounts written-off, assessment of customer collectibility and current economic trends, including unemployment rates and any likelihood of recession for the region. The following table sets forth the changes in allowance for uncollectible accounts for SCE: Three months ended Three months ended September 30, 2023 September 30, 2022 (in millions) Customers All others Total Customers All others Total Beginning balance $ 326 $ 17 $ 343 $ 364 $ 17 $ 381 Current period provision for uncollectible accounts 2 25 5 30 69 2 71 Write-offs, net of recoveries (22) (6) (28) (24) (2) (26) Ending balance $ 329 $ 16 $ 345 1 $ 409 $ 17 $ 426 Nine months ended Nine months ended September 30, 2023 September 30, 2022 (in millions) Customers All others Total Customers All others Total Beginning balance $ 334 $ 20 $ 354 1 $ 293 $ 16 $ 309 Current period provision for uncollectible accounts 3 65 6 71 160 11 171 Write-offs, net of recoveries (70) (10) (80) (44) (10) (54) Ending balance $ 329 $ 16 $ 345 1 $ 409 $ 17 $ 426 1 Approximately $5 million and $7 million of allowance for uncollectible accounts are included in " Other long-term assets " on SCE's consolidated balance sheets as of September 30, 2023 and December 31, 2022, respectively. 2 This includes $17 million and $57 million of incremental costs, for the three months ended September 30, 2023 and 2022, respectively, which were probable of recovery from customers and recorded as regulatory assets. 3 This includes $44 million and $115 million of incremental costs, for the nine months ended September 30, 2023 and 2022, respectively, which were probable of recovery from customers and recorded as regulatory assets. Earnings Per Share Edison International computes earnings per common share ("EPS") using the two-class method, which is an earnings allocation formula that determines EPS for each class of common stock and participating security. Edison International's participating securities are stock-based compensation awards, payable in common shares, which earn dividend equivalents on an equal basis with common shares once the awards are vested. See Note 13 for further information. EPS attributable 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) 2023 2022 2023 2022 Basic earnings (loss) per share: Net income (loss) attributable to common shareholders $ 155 $ (128) $ 819 $ 197 Net income (loss) available to common shareholders $ 155 $ (128) $ 819 $ 197 Weighted average common shares outstanding 383 382 383 381 Basic earnings (loss) per share $ 0.40 $ (0.33) $ 2.14 $ 0.52 Diluted earnings (loss) per share: Net income (loss) attributable to common shareholders $ 155 $ (128) $ 819 $ 197 Net income (loss) available to common shareholders $ 155 $ (128) $ 819 $ 197 Income impact of assumed conversions — — 1 — Net income (loss) available to common shareholders and assumed conversions $ 155 $ (128) $ 820 $ 197 Weighted average common shares outstanding 383 382 383 381 Incremental shares from assumed conversions 2 1 2 1 Adjusted weighted average shares – diluted 385 383 385 382 Diluted earnings (loss) per share $ 0.40 $ (0.33) $ 2.13 $ 0.52 In addition to the participating securities discussed above, Edison International also may award stock options, which are payable in common shares and are included in the diluted earnings per share calculation. Stock option awards to purchase 3,231,385 and 5,089,280 shares of common stock for the three months ended September 30, 2023 and 2022, respectively, and 3,230,603 and 5,204,369 shares of common stock for the nine months ended September 30, 2023 and 2022, respectively, were outstanding, but were not included in the computation of diluted earnings per share because the effect would have been antidilutive. Revenue Recognition Revenue is recognized by Edison International and SCE when a performance obligation to transfer control of the promised goods is satisfied or when services are rendered to customers. This typically occurs when electricity is delivered to customers, which includes amounts for services rendered but unbilled at the end of a reporting period. Regulatory Proceedings FERC 2023 Formula Rate Update In November 2022, SCE filed its 2023 annual update with the FERC with the proposed rates effective January 1, 2023, subject to settlement procedures and refund. Pending resolution of the FERC formula rate proceedings, SCE recognized revenue in the first nine months of 2023 based on the FERC 2023 annual update rate, subject to refund. Leases During the quarter ended September 30, 2023, one SCE 15-year Edison Carrier Solutions SCE operates commercial telecommunications service under the name of Edison Carrier Solutions ("ECS"), leveraging the temporarily available capacity of SCE's telecommunications network. As technology evolves, management is implementing strategic shifts in ECS services, including potential disposition of assets and ceasing to offer certain wire data services. ECS has notified affected customers of its intent to discontinue certain services over time and gave customers the option to discontinue those services. As a result of customer cancellations in the second quarter of 2023, materials and supplies inventory supporting data services are expected to be sold instead of placed into service and have been written-down to net realizable value, resulting in a charge of $13 million. Labor and other costs of $4 million previously recorded as construction work in progress for projects no longer probable of completion were also charged to expense in the period. Subsequent Event In October 2023, SCE entered into two PPAs, which are subject to CPUC approval, with expected initial delivery dates commencing in 2027 and 2028, respectively. The undiscounted future minimum expected payments for these contracts are $48 million in 2027 and $3.0 billion thereafter.

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity	9 Months Ended
Consolidated Statements of Changes in Equity	Sep. 30, 2023
Accumulated Other Comprehensive Loss
Consolidated Statements of Changes in Equity	Note 2. The following table provides Edison International's changes in equity for the three and nine months ended September 30, 2023: Noncontrolling Equity Attributable to Edison International Shareholders Interests Accumulated Other Preferred Common Comprehensive Retained Preference Total (in millions, except per share amounts) Stock Stock Loss Earnings Subtotal Stock Equity Balance at December 31, 2022 $ 1,978 $ 6,200 $ (11) $ 7,454 $ 15,621 $ 1,901 $ 17,522 Net income — — — 336 336 29 365 Other comprehensive income — — 2 — 2 — 2 Common stock issued — 15 — — 15 — 15 Common stock dividends declared ($0.7375 per share) — — — (282) (282) — (282) Preferred stock dividend declared ($26.875 per share for Series A and $25.00 per share for Series B) — — — (52) (52) — (52) Dividends to noncontrolling interests ($22.281 - $35.937 per share for preference stock) — — — — — (29) (29) Noncash stock-based compensation — 8 — — 8 — 8 Balance at March 31, 2023 $ 1,978 $ 6,223 $ (9) $ 7,456 $ 15,648 $ 1,901 $ 17,549 Net income — — — 380 380 29 409 Other comprehensive income — — 1 — 1 — 1 Common stock issued — 35 — — 35 — 35 Common stock dividends declared ($0.7375 per share) — — — (283) (283) — (283) Dividends to noncontrolling interests ($24.273 - $35.937 per share for preference stock) — — — — — (29) (29) Noncash stock-based compensation — 12 — — 12 — 12 Balance at June 30, 2023 $ 1,978 $ 6,270 $ (8) $ 7,553 $ 15,793 $ 1,901 $ 17,694 Net income — — — 182 182 30 212 Common stock issued — 19 — — 19 — 19 Common stock dividends declared ($0.7375 per share) — — — (283) (283) — (283) Preferred stock dividend declared ($26.875 per share for Series A and $25.00 per share for Series B) — — — (53) (53) — (53) Dividends to noncontrolling interests ($25.1276 - $35.937 per share for preference stock) — — — — — (30) (30) Noncash stock-based compensation — 12 — — 12 — 12 Balance at September 30, 2023 $ 1,978 $ 6,301 $ (8) $ 7,399 $ 15,670 $ 1,901 $ 17,571 The following table provides Edison International's changes in equity for the three and nine months ended September 30, 2022: Noncontrolling Equity Attributable to Edison International Shareholders Interests Accumulated Other Preferred Common Comprehensive Retained Preference Total (in millions, except per share amounts) Stock Stock Loss Earnings Subtotal Stock Equity Balance at December 31, 2021 $ 1,977 $ 6,071 $ (54) $ 7,894 $ 15,888 $ 1,901 $ 17,789 Net income — — — 110 110 26 136 Other comprehensive income — — 2 — 2 — 2 Common stock issued, net of issuance cost — 12 — — 12 — 12 Common stock dividends declared ($0.7000 per share) — — — (267) (267) — (267) Preferred stock dividend declared ($26.875 per share for Series A and $17.08333 per share for Series B) — — — (21) (21) — (21) Dividends to noncontrolling interests ($11.160 - $35.937 per share for preference stock) — — — — — (26) (26) Noncash stock-based compensation — 7 — — 7 — 7 Balance at March 31, 2022 $ 1,977 $ 6,090 $ (52) $ 7,716 $ 15,731 $ 1,901 $ 17,632 Net income — — — 267 267 25 292 Other comprehensive income — — 4 — 4 — 4 Common stock issued, net of issuance cost — 27 — — 27 — 27 Common stock dividends declared ($0.7000 per share) — — — (267) (267) — (267) Dividends to noncontrolling interests ($14.017 - $35.937 per share for preference stock) — — — — — (25) (25) Noncash stock-based compensation — 12 — — 12 — 12 Balance at June 30, 2022 $ 1,977 $ 6,129 $ (48) $ 7,716 $ 15,774 $ 1,901 $ 17,675 Net (loss) income — — — (101) (101) 27 (74) Other comprehensive income — — 1 — 1 — 1 Common stock issued, net of issuance cost — 28 — — 28 — 28 Common stock dividends declared ($0.7000 per share) — — — (267) (267) — (267) Preferred stock dividend declared ($26.875 per share for Series A and $25.00 per share for Series B) (53) (53) — (53) Dividends to noncontrolling interests ($17.8564 - $35.937 per share for preference stock) — — — — — (27) (27) Noncash stock-based compensation and other — 10 — — 10 10 Balance at September 30, 2022 $ 1,977 $ 6,167 $ (47) $ 7,295 $ 15,392 $ 1,901 $ 17,293 The following table provides SCE's changes in equity for the three and nine months ended September 30, 2023: Accumulated Additional Other Preference Common Paid-in Comprehensive Retained Total (in millions, except per share amounts) Stock Stock Capital Loss Earnings Equity Balance at December 31, 2022 $ 1,945 $ 2,168 $ 8,441 $ (8) $ 8,243 $ 20,789 Net income — — — — 399 399 Dividends declared on common stock ($0.8048 per share) — — — — (350) (350) Dividends declared on preference stock ($22.281 - $35.937 per share) — — — — (29) (29) Stock-based compensation — — (8) — — (8) Noncash stock-based compensation — — 5 — 1 6 Balance at March 31, 2023 $ 1,945 $ 2,168 $ 8,438 $ (8) $ 8,264 $ 20,807 Net income — — — — 449 449 Dividends declared on common stock ($0.8048 per share) — — — — (350) (350) Dividends declared on preference stock ($24.273 - $35.937 per share) — — — — (29) (29) Stock-based compensation — — (3) — — (3) Noncash stock-based compensation — — 7 — — 7 Balance at June 30, 2023 $ 1,945 $ 2,168 $ 8,442 $ (8) $ 8,334 $ 20,881 Net income — — — — 269 269 Dividends declared on common stock ($0.8048 per share) — — — — (350) (350) Dividends declared on preference stock ($25.1276 - $35.937 per share) — — — — (30) (30) Stock-based compensation — — (1) — — (1) Noncash stock-based compensation and other — — 6 — — 6 Balance at September 30, 2023 $ 1,945 $ 2,168 $ 8,447 $ (8) $ 8,223 $ 20,775 The following table provides SCE's changes in equity for the three and nine months ended September 30, 2022: Accumulated Additional Other Preference Common Paid-in Comprehensive Retained Total (in millions, except per share amounts) Stock Stock Capital Loss Earnings Equity Balance at December 31, 2021 $ 1,945 $ 2,168 $ 7,033 $ (32) $ 8,721 $ 19,835 Net income — — — — 173 173 Other comprehensive income — — — 1 — 1 Dividends declared on common stock ($0.7473 per share) — — — — (325) (325) Dividends declared on preference stock ($11.160 - $35.937 per share) — — — — (26) (26) Stock-based compensation — — (9) — — (9) Noncash stock-based compensation — — 4 — (1) 3 Balance at March 31, 2022 $ 1,945 $ 2,168 $ 7,028 $ (31) $ 8,542 $ 19,652 Net income — — — — 327 327 Other comprehensive income — — — 3 — 3 Capital contribution from Edison International Parent — — 700 — — 700 Dividends declared on common stock ($0.7473 per share) — — — — (325) (325) Dividends declared on preferred and preference stock ($14.017 - $35.937 per share for preference stock) — — — — (25) (25) Stock-based compensation — — (1) — — (1) Noncash stock-based compensation — — 5 — 1 6 Balance at June 30, 2022 $ 1,945 $ 2,168 $ 7,732 $ (28) $ 8,520 $ 20,337 Net loss — — — — (53) (53) Other comprehensive income — — — 1 — 1 Dividends declared on common stock ($0.7473 per share) — — — — (325) (325) Dividends declared on preferred and preference stock ($17.8564 - $35.937 per share for preference stock) — — — — (27) (27) Stock-based compensation — — (2) — — (2) Noncash stock-based compensation and other — — 5 — 5 Balance at September 30, 2022 $ 1,945 $ 2,168 $ 7,735 $ (27) $ 8,115 $ 19,936

Variable Interest Entities

Variable Interest Entities	9 Months Ended
Variable Interest Entities	Sep. 30, 2023
Variable Interest Entities
Variable Interest Entities	Note 3. A VIE is defined as a legal entity that meets one of two conditions: (1) the equity owners do not have sufficient equity at risk, or (2) the holders of the equity investment at risk, as a group, lack any of the following three characteristics: decision-making rights, the obligation to absorb losses or the right to receive the expected residual returns of the entity. The primary beneficiary is identified as the variable interest holder that has both the power to direct the activities of the VIE that most significantly impact the entity's economic performance and the obligation to absorb losses or the right to receive benefits from the entity that could potentially be significant to the VIE. The primary beneficiary is required to consolidate the VIE. Commercial and operating activities are generally the factors that most significantly impact the economic performance of such VIEs. Commercial and operating activities include construction, operation and maintenance, fuel procurement, plant dispatch and compliance with regulatory and contractual requirements. Variable Interest in VIEs that are Consolidated SCE Recovery Funding LLC is a bankruptcy remote, wholly owned special purpose subsidiary, consolidated by SCE. SCE Recovery Funding LLC is a VIE and SCE is the primary beneficiary. SCE Recovery Funding LLC was formed in 2021 for the purpose of issuing and servicing securitized bonds related to SCE's AB 1054 Excluded Capital Expenditures. SCE Recovery Funding LLC has issued a total of $1.6 billion of securitized bonds. The proceeds were used to acquire SCE's right, title and interest in and to non-bypassable rates and other charges to be collected from certain existing and future customers in SCE's service territory ("Recovery Property"), associated with the AB 1054 Excluded Capital Expenditures, until the bonds are paid in full, and all financing costs have been recovered. The securitized bonds are secured by the Recovery Property and cash collections from the non-bypassable rates and other charges are the sole source of funds to satisfy the debt obligation. The bondholders have no recourse to SCE. For further details, see Note 5. The following table summarizes the impact of SCE Recovery Funding LLC on SCE's and Edison International's consolidated balance sheets. September 30, December 31, (in millions) 2023 2022 Other current assets $ 78 $ 45 Regulatory assets: non-current 1,571 834 Regulatory liabilities: current 22 33 Current portion of long-term debt 1 54 29 Other current liabilities 26 4 Long-term debt 1 1,539 809 1 The bondholders have no recourse to SCE. The long-term debt balance is net of unamortized debt issuance costs. Variable Interest in VIEs that are not Consolidated Power Purchase Agreements SCE has PPAs that are classified as variable interests in VIEs, including agreements through which SCE provides the natural gas to fuel the plants, fixed price contracts for renewable energy, and resource adequacy agreements that, upon the seller's election, include the purchase of energy at fixed prices. SCE has concluded that it is not the primary beneficiary of these VIEs since it does not control the commercial and operating activities of these entities. Since payments for capacity are the primary source of income, the most significant economic activity for these VIEs is the operation and maintenance of the power plants, which SCE does not perform. As of the balance sheet date, the carrying amount of assets and liabilities included in SCE's consolidated balance sheet that relate to involvement with VIEs that are not consolidated, result from amounts due under the PPAs. Under these contracts, SCE recovers the costs incurred through demonstration of compliance with its CPUC-approved long-term power procurement plans. SCE has no residual interest in the entities and has not provided or guaranteed any debt or equity support, liquidity arrangements, performance guarantees, or other commitments associated with these contracts other than the purchase commitments described in Note 12 of the 2022 Form 10-K. As a result, there is no significant potential exposure to loss to SCE from its variable interest in these VIEs. The aggregate contracted capacity dedicated to SCE from these VIE projects was 3,443 MW and 3,901 MW at September 30, 2023 and 2022, respectively. The amounts that SCE paid to these projects were $191 million and $252 million for the three months ended September 30, 2023 and 2022, respectively, and $476 million and $460 million for the nine months ended September 30, 2023 and 2022, respectively. These amounts are recoverable in customer rates, subject to reasonableness review. Unconsolidated Trusts of SCE SCE Trust II, Trust III, Trust IV, Trust V, and Trust VI were formed in 2013, 2014, 2015, 2016, and 2017, respectively, for the exclusive purpose of issuing the 5.10%, 5.75%, 5.375%, 5.45%, and 5.00% trust preference securities, respectively ("trust securities"). The trusts are VIEs. SCE has concluded that it is not the primary beneficiary of these VIEs as it does not have the obligation to absorb the expected losses or the right to receive the expected residual returns of the trusts. SCE Trust II, Trust III, Trust IV, Trust V and Trust VI issued to the public trust securities in the face amounts of $400 million, $275 million, $325 million, $300 million, and $475 million (cumulative, liquidation amounts of $25 per share), respectively, and $10,000 of common stock each to SCE. The trusts invested the proceeds of these trust securities in Series G, Series H, Series J, Series K, and Series L Preference Stock issued by SCE in the principal amounts of $400 million, $275 million, $325 million, $300 million, and $475 million (cumulative, $2,500 per share liquidation values), respectively, which have substantially the same payment terms as the respective trust securities. The Series G, Series H, Series J, Series K, and Series L Preference Stock and the corresponding trust securities do not have a maturity date. Upon any redemption of any shares of the Series G, Series H, Series J, Series K, or Series L Preference Stock, a corresponding dollar amount of trust securities will be redeemed by the applicable trust. The applicable trust will make distributions at the same rate and on the same dates on the applicable series of trust securities, if and when the SCE board of directors declares and makes dividend payments on the related Preference Stock. The applicable trust will use any dividends it receives on the related Preference Stock to make its corresponding distributions on the applicable series of trust securities. If SCE does not make a dividend payment to any of these trusts, SCE would be prohibited from paying dividends on its common stock. SCE has fully and unconditionally guaranteed the payment of the trust securities and trust distributions, if and when SCE pays dividends on the related Preference Stock. The Trust II, Trust III, Trust IV, Trust V and Trust VI balance sheets as of September 30, 2023 and December 31, 2022 consisted of investments of $220 million, $275 million, $325 million, $300 million, and $475 million in the Series G, Series H, Series J, Series K and Series L Preference Stock, respectively, $220 million, $275 million, $325 million, $300 million, and $475 million of trust securities, respectively, and $10,000 each of common stock. The following table provides a summary of the trusts' income statements: Three months ended September 30, (in millions) Trust II Trust III Trust IV Trust V Trust VI 2023 Dividend income $ 2 $ 4 $ 4 $ 4 $ 6 Dividend distributions 2 4 4 4 6 2022 Dividend income $ 2 $ 4 $ 4 $ 4 $ 6 Dividend distributions 2 4 4 4 6 Nine months ended September 30, (in millions) Trust II Trust III Trust IV Trust V Trust VI 2023 Dividend income $ 8 $ 12 $ 13 $ 12 $ 18 Dividend distributions 8 12 13 12 18 2022 Dividend income $ 8 $ 12 $ 13 $ 12 $ 18 Dividend distributions 8 12 13 12 18

Fair Value Measurements

Fair Value Measurements	9 Months Ended
Fair Value Measurements	Sep. 30, 2023
Fair Value Measurements
Fair Value Measurements	Note 4. Recurring Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (referred to as an "exit price"). Fair value of an asset or liability considers assumptions that market participants would use in pricing the asset or liability, including assumptions about nonperformance risk. As of September 30, 2023 and December 31, 2022, nonperformance risk was not material for Edison International and SCE. Assets and liabilities are categorized into a three-level fair value hierarchy based on valuation inputs used to determine fair value. Level 1 – The fair value of Edison International's and SCE's Level 1 assets and liabilities is determined using unadjusted quoted prices in active markets that are available at the measurement date for identical assets and liabilities. This level includes exchange-traded equity securities, U.S. treasury securities, mutual funds, and money market funds. Level 2 – Edison International's and SCE's Level 2 assets and liabilities include fixed income securities, primarily consisting of U.S. government and agency bonds, municipal bonds and corporate bonds, and over-the-counter commodity derivatives. The fair value of fixed income securities is determined using a market approach by obtaining quoted prices for similar assets and liabilities in active markets and inputs that are observable, either directly or indirectly, for substantially the full term of the instrument. The fair value of SCE's over-the-counter commodity derivative contracts is determined using an income approach. SCE uses standard pricing models to determine the net present value of estimated future cash flows. Inputs to the pricing models include forward published or posted clearing prices from an exchange (Intercontinental Exchange) for similar instruments and discount rates. A primary price source that best represents trade activity for each market is used to develop observable forward market prices in determining the fair value of these positions. Broker quotes, prices from exchanges, or comparison to executed trades are used to validate and corroborate the primary price source. These price quotations reflect mid-market prices (average of bid and ask) and are obtained from sources believed to provide the most liquid market for the commodity. Level 3 – This level includes congestion revenue rights ("CRRs"), which are derivative contracts that trade infrequently with significant unobservable inputs (CAISO CRR auction prices). SCE employs a market valuation approach of utilizing historical CRR prices as a proxy for forward prices. Edison International Parent and Other does not have any Level 3 assets and liabilities. Assumptions are made in order to value derivative contracts in which observable inputs are not available. In circumstances where fair value cannot be verified with observable market transactions, it is possible that a different valuation model could produce a materially different estimate of fair value. Modeling methodologies, inputs, and techniques are reviewed and assessed as markets continue to develop and more pricing information becomes available, and the fair value is adjusted when it is concluded that a change in inputs or techniques would result in a new valuation that better reflects the fair value of those derivative contracts. See Note 6 for a discussion of derivative instruments. SCE The following table sets forth assets and liabilities of SCE that were accounted for at fair value by level within the fair value hierarchy: September 30, 2023 Netting and (in millions) Level 1 Level 2 Level 3 Collateral 1 Total Assets at fair value Derivative contracts $ — $ 5 $ 34 $ (5) $ 34 Money market funds and other — 22 — — 22 Nuclear decommissioning trusts: Stocks 2 1,550 — — — 1,550 Fixed Income 3 927 1,339 — — 2,266 Short-term investments, primarily cash equivalents 188 29 — — 217 Subtotal of nuclear decommissioning trusts 4 2,665 1,368 — — 4,033 Total assets 2,665 1,395 34 (5) 4,089 Liabilities at fair value Derivative contracts — 45 — (45) — Total liabilities — 45 — (45) — Net assets $ 2,665 $ 1,350 $ 34 $ 40 $ 4,089 December 31, 2022 Netting and (in millions) Level 1 Level 2 Level 3 Collateral 1 Total Assets at fair value Derivative contracts $ — $ 392 $ 67 $ (218) $ 241 Money market funds and other 647 22 — — 669 Nuclear decommissioning trusts: Stocks 2 1,610 — — — 1,610 Fixed Income 3 941 1,281 — — 2,222 Short-term investments, primarily cash equivalents 137 64 — — 201 Subtotal of nuclear decommissioning trusts 4 2,688 1,345 — — 4,033 Total assets 3,335 1,759 67 (218) 4,943 Liabilities at fair value Derivative contracts — 116 4 (119) 1 Total liabilities — 116 4 (119) 1 Net assets $ 3,335 $ 1,643 $ 63 $ (99) $ 4,942 1 Represents the netting of assets and liabilities under master netting agreements and cash collateral. 2 Approximately 75% and 74% SCE's equity investments were in companies located in the United States at September 30, 2023 and December 31, 2022, respectively. 3 Includes corporate bonds, which were diversified by the inclusion of collateralized mortgage obligations and other asset backed securities, of $87 million and $49 million at September 30, 2023 and December 31, 2022, respectively. 4 Excludes net payables of $90 million and $85 million at September 30, 2023 and December 31, 2022, respectively, which consist of interest and dividend receivables as well as receivables and payables related to SCE's pending securities sales and purchases. SCE Fair Value of Level 3 The following table sets forth a summary of changes in SCE's fair value of Level 3 net derivative assets and liabilities: Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 Fair value of net assets at beginning of period $ 12 $ 32 $ 63 $ 44 Sales — (1) (1) (7) Settlements (23) (25) (47) (54) Total realized/unrealized gains 1 45 47 19 70 Fair value of net assets at end of period $ 34 $ 53 $ 34 $ 53 1 Due to regulatory mechanisms, SCE's realized and unrealized gains and losses are recorded as regulatory assets and liabilities. There were no material transfers into or out of Level 3 during 2023 and 2022. The following table sets forth the significant unobservable inputs used to determine fair value for Level 3 assets and liabilities: Fair Value Significant Weighted (in millions) Unobservable Range Average Assets Liabilities Input (per MWh) (per MWh) Congestion revenue rights September 30, 2023 $ 34 $ — CAISO CRR auction prices $(2.86) - $45.78 $ 0.29 December 31, 2022 67 4 CAISO CRR auction prices (7.91) - 3,856.67 1.64 Level 3 Fair Value Uncertainty For CRRs, increases or decreases in CAISO auction prices would result in higher or lower fair value, respectively. Nuclear Decommissioning Trusts SCE's nuclear decommissioning trust investments include equity securities, U.S. treasury securities, and other fixed income securities. Equity and treasury securities are classified as Level 1 as fair value is determined by observable market prices in active or highly liquid and transparent markets. The remaining fixed income securities are classified as Level 2. There are no securities classified as Level 3 in the nuclear decommissioning trusts. Edison International Parent and Other Edison International Parent and Other assets measured at fair value and classified as Level 1 consisted of money market funds of $120 million and $137 million at September 30, 2023 and December 31, 2022, respectively, and $5 million of equity investments at December 31, 2022. There are no assets classified as Level 2 at September 30, 2023. Assets measured at fair value and classified at Level 2 consisted of short-term investments of $2 million at December 31, 2022. There are no securities classified as Level 3 for Edison International Parent and Other. Fair Value of Debt Recorded at Carrying Value The carrying value and fair value of Edison International's and SCE's long-term debt (including the current portion of long-term debt) are as follows: September 30, 2023 December 31, 2022 Carrying Fair Carrying Fair (in millions) Value 1 Value 2 Value 1 Value 2 Edison International $ 32,471 $ 28,700 $ 29,639 $ 26,824 SCE 28,398 24,688 26,258 23,469 1 Carrying value is net of debt issuance costs. 2 The fair value of long-term debt is classified as Level 2.

Debt and Credit Agreements

Debt and Credit Agreements	9 Months Ended
Debt and Credit Agreements	Sep. 30, 2023
Debt and Credit Agreements
Debt and Credit Agreements	Note 5. Long-Term Debt In the first quarter of 2023, Edison International Parent issued $ million of junior subordinated notes due in 2053. The interest rate resets every five years at a rate equal to the five-year U.S. Treasury rate plus a spread of 3.864% . The proceeds were used to repay commercial paper borrowings and for general corporate purposes. In the second quarter of 2023, Edison International Parent issued $600 million of 5.25% senior notes due in 2028. The proceeds were used to repay commercial paper borrowings and for general corporate purposes. During the nine months ended September 30, 2023, SCE issued the following first and refunding mortgage bonds: Description Month of Issuance Rate Maturity Date Amount Series 2023A 1 March 2023 5.30% 2028 $ 750 Series 2023B 2 March 2023 5.70% 2053 450 Series 2023C 1 May 2023 4.90% 2026 400 Series 2023D 2 May 2023 5.88% 2053 700 Series 2023E 1 September 2023 5.65% 2028 550 1 The proceeds were used to fund the payment of wildfire claims and related expenses above the amount of expected insurance proceeds. 2 The proceeds were used to repay commercial paper borrowings and for general corporate purposes. Senior Secured Recovery Bonds In the second quarter of 2023, SCE Recovery Funding LLC issued $775 million of Senior Secured Recovery Bonds, Series 2023-A, in two tranches and used the proceeds to acquire SCE's right, title and interest in and to the Recovery Property. The two tranches of Senior Secured Recovery Bonds consisted of $425 million, 4.697% with final maturity in 2042 bonds and $350 million, 5.112% with final maturity in 2049 bonds. For further details, see Note 3. SCE used the proceeds from the sale of Recovery Property to pay down the entire $730 million outstanding amount of a term loan due in May 2023. Credit Agreements and Short-Term Debt The following table summarizes the status of the credit facilities at September 30, 2023: (in millions, except for rates) Borrower Termination Date Secured Overnight Financing Rate ("SOFR") plus (bps) Commitment Outstanding borrowings Outstanding letters of credit Amount available Edison International Parent 1, 3 May 2027 128 $ 1,500 $ 389 $ — $ 1,111 SCE 2, 3 May 2027 108 3,350 621 202 2,527 Total Edison International $ 4,850 $ 1,010 $ 202 $ 3,638 1 At September 30, 2023, Edison International Parent had $388 million outstanding commercial paper, net of discount, at a weighted-average interest rate of 5.84% . 2 At September 30, 2023, SCE had $616 million outstanding commercial paper, net of discount, at a weighted-average interest rate of 5.73% . 3 In May 2023, Edison International Parent and SCE amended their credit facilities to extend the maturity date to May 2027, with two additional one-year extension options. The aggregate maximum principal amount under the SCE and Edison International Parent revolving credit facilities may be increased up to $4.0 billion and $2.0 billion, respectively, provided that additional lender commitments are obtained. Uncommitted Letters of Credit Subsequent to September 30, 2023 In October 2023, SCE entered into agreements with certain lenders for bilateral unsecured standby letters of credit ("SBLC") with a total capacity of $625 million that is uncommitted and supported by reimbursement agreements. The SBLCs are not subject to any collateral or security requirements.

Derivative Instruments

Derivative Instruments	9 Months Ended
Derivative Instruments	Sep. 30, 2023
Derivative Instruments
Derivative Instruments	I e Note 6. Derivative Instruments Derivative financial instruments are used to manage exposure to commodity price risk. These risks are managed in part by entering into forward commodity transactions, including options, swaps and futures. To mitigate credit risk from counterparties in the event of nonperformance, master netting agreements are used whenever possible, and counterparties may be required to pledge collateral depending on the creditworthiness of each counterparty and the risk associated with the transaction. Commodity Price Risk Commodity price risk represents the potential impact that can be caused by a change in the market value of a particular commodity. SCE's electricity price exposure arises from energy purchased from and sold to wholesale markets as a result of differences between SCE's load requirements and the amount of energy delivered from its generating facilities and PPAs. SCE's natural gas price exposure arises from natural gas purchased for the Mountainview power plants, Peaker plants and Qualifying Facilities contracts where pricing is based on a monthly natural gas index and PPAs in which SCE has agreed to provide the natural gas needed for generation, referred to as tolling arrangements. Credit and Default Risk Credit and default risk represent the potential impact that can be caused if a counterparty were to default on its contractual obligations and SCE would be exposed to spot markets for buying replacement power and natural gas or selling excess power and natural gas. In addition, SCE would be exposed to the risk of non-payment of accounts receivable, primarily related to the sales of excess power and natural gas and realized gains on derivative instruments. Certain power and gas contracts contain master netting agreements or similar agreements, which generally allow counterparties subject to the agreement to offset amounts when certain criteria are met, such as in the event of default. The objective of netting is to reduce credit exposure. Additionally, to reduce SCE's risk exposures, counterparties may be required to pledge collateral depending on the creditworthiness of each counterparty and the risk associated with the transaction. Certain power and gas contracts contain a provision that requires SCE to maintain an investment grade rating from the major credit rating agencies that have credit ratings for SCE, referred to as a credit-risk-related contingent feature. If SCE's credit rating were to fall below investment grade, SCE may be required to post additional collateral to cover derivative liabilities and the related outstanding payables. The net fair value of all derivative liabilities with these credit-risk-related contingent features was less than $1 million as of September 30, 2023 and December 31, 2022, for which SCE posted no collateral and collateral of $24 million for its outstanding payables as of September 30, 2023 and December 31, 2022, respectively. If the credit-risk-related contingent features underlying these agreements were triggered on September 30, 2023, SCE would be required to post collateral of $1 million, most of which is related to outstanding payables. Fair Value of Derivative Instruments SCE presents its derivative assets and liabilities, recorded at fair value, on a net basis on its consolidated balance sheets when subject to master netting agreements or similar agreements. Derivative positions are also offset against margin and cash collateral deposits. In addition, SCE has provided collateral in the form of letters of credit. Collateral requirements can vary depending upon the level of unsecured credit extended by counterparties, changes in market prices relative to contractual commitments and other factors. See Note 4 for a discussion of fair value of derivative instruments. The following table summarizes the gross and net fair values of SCE's commodity derivative instruments: September 30, 2023 Derivative Assets Derivative Liabilities (in millions) Short-Term 1 Long-Term 2 Short-Term Commodity derivative contracts Gross amounts recognized $ 33 $ 6 $ 45 Gross amounts offset in the consolidated balance sheets (5) — (5) Cash collateral received — — (40) Net amounts presented in the consolidated balance sheets $ 28 $ 6 $ — December 31, 2022 Derivative Assets Derivative Liabilities (in millions) Short-Term 1 Short-Term 3 Commodity derivative contracts Gross amounts recognized $ 459 $ 120 Gross amounts offset in the consolidated balance sheets (119) (119) Cash collateral received (99) — Net amounts presented in the consolidated balance sheets $ 241 $ 1 1 Included in "Other current assets" on SCE's consolidated balance sheets. 2 Included in "Other long-term assets" on SCE's consolidated balance sheets. 3 Included in "Other current liabilities" on SCE's consolidated balance sheets. At September 30, 2023, SCE posted and accrued $110 million of cash collateral, of which $40 million was offset against derivative liabilities and $70 million was reflected in "Other current assets" on SCE's consolidated balance sheets. Financial Statement Impact of Derivative Instruments SCE recognizes realized gains and losses on derivative instruments as purchased power expense and expects that such gains or losses will be part of the purchased power costs recovered from customers. As a result, realized gains and losses do not affect earnings, but may temporarily affect cash flows. Due to the expected future recovery from customers, unrealized gains and losses are recorded as regulatory assets and liabilities and therefore, also do not affect earnings. The remaining effects of derivative activities and related regulatory offsets are reported in cash flows from operating activities in SCE’s consolidated statements of cash flows. The following table summarizes the gains/(losses) of SCE's economic hedging activity: Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 Realized $ (57) $ 69 $ 52 $ 179 Unrealized 34 36 (344) 1 Notional Volumes of Derivative Instruments The following table summarizes the notional volumes of derivatives used for SCE's economic hedging activities: Unit of Economic Hedges Commodity Measure September 30, 2023 December 31, 2022 Electricity options, swaps and forwards Gigawatt hours 2,299 1,022 Natural gas options, swaps and forwards Billion cubic feet 34 42 Congestion revenue rights Gigawatt hours 30,770 44,028

Revenue

Revenue	9 Months Ended
Revenue	Sep. 30, 2023
Revenue
Revenue	Note 7. SCE's revenue is disaggregated by two revenue sources: ● Earning activities – representing revenue authorized by the CPUC and FERC, which is intended to provide SCE with a reasonable opportunity to recover its costs and earn a return on its net investment in generation, transmission and distribution assets. The annual revenue requirements are comprised of authorized operation and maintenance costs, depreciation, taxes and a return consistent with the capital structure. Also, included in earnings activities are revenue or penalties related to incentive mechanisms, other operating revenue, and regulatory charges or disallowances. ● Cost-recovery activities – representing CPUC- and FERC- authorized balancing accounts, which allow for recovery of specific project or program costs, subject to a reasonableness review or compliance with upfront standards, as well as non-bypassable rates collected for SCE Recovery Funding LLC. Cost-recovery activities include rates which provide recovery, subject to a reasonableness review of, among other things, fuel costs, purchased power costs, public purpose related-program costs (including energy efficiency and demand-side management programs), certain operation and maintenance expenses and repayment of bonds and financing costs of SCE Recovery Funding LLC. SCE earns no return on these activities. The following table is a summary of SCE's revenue: Three months ended September 30, 2023 Three months ended September 30, 2022 Cost- Cost- Earning Recovery Total Earning Recovery Total (in millions) Activities Activities Consolidated Activities Activities Consolidated Revenue from contracts with customers 1 $ 2,362 $ 3,479 $ 5,841 $ 2,350 $ 3,603 $ 5,953 Alternative revenue programs and other operating revenue 2 25 (1,179) (1,154) 100 (836) (736) Total operating revenue $ 2,387 $ 2,300 $ 4,687 $ 2,450 $ 2,767 $ 5,217 Nine months ended September 30, 2023 Nine months ended September 30, 2022 Cost- Cost- Earning Recovery Total Earning Recovery Total (in millions) Activities Activities Consolidated Activities Activities Consolidated Revenues from contracts with customers 1 $ 6,481 $ 6,685 $ 13,166 $ 6,313 $ 7,000 $ 13,313 Alternative revenue programs and other operating revenue 2 306 (886) (580) 568 (707) (139) Total operating revenue $ 6,787 $ 5,799 $ 12,586 $ 6,881 $ 6,293 $ 13,174 1 At September 30, 2023 and December 31, 2022, SCE's receivables related to contracts from customers were $3.1 billion and $2.3 billion, respectively, which include accrued unbilled revenue of $929 million and $638 million, respectively. 2 Includes differences between revenues from contracts with customers and authorized levels for certain CPUC and FERC revenues. Deferred Revenue As of September 30, 2023, SCE has deferred revenue of $371 million related to sale of the use of transfer capability of West of Devers transmission line, of which $13 million and $358 million are included in "Other current liabilities" and "Other deferred credits and other long-term liabilities," respectively, on SCE's consolidated balance sheets. The deferred revenue is amortized straight-line over a period of 30 years starting 2021.

Income Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2023
Income Taxes
Income Taxes	Note 8. Effective Tax Rate The table below provides a reconciliation of income tax expense computed at the federal statutory income tax rate to the income tax provision: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Edison International: Income (loss) from operations before income taxes $ 189 $ (261) $ 1,027 $ 119 Provision for income tax at federal statutory rate of 21% 40 (55) 216 25 (Decrease) increase in income tax from: State tax, net of federal benefit (16) (58) (16) (79) Property-related (47) (79) (152) (172) Other — 5 (7) (9) Total income tax (benefit) expense $ (23) $ (187) $ 41 $ (235) Effective tax rate (12.2) % (71.6) % 4.0 % (197.5) % SCE: Income (loss) from operations before income taxes $ 268 $ (230) $ 1,213 $ 252 Provision for income tax at federal statutory rate of 21% 56 (48) 255 53 (Decrease) increase in income tax from: State tax, net of federal benefit (11) (53) — (66) Property-related (47) (79) (152) (172) Other 1 3 (7) (10) Total income tax (benefit) expense $ (1) $ (177) $ 96 $ (195) Effective tax rate (0.4) % (77.0) % 7.9 % (77.4) % The CPUC requires flow-through ratemaking treatment for the current tax benefit arising from certain property-related and other temporary differences which reverse over time. Flow-through items reduce current authorized revenue requirements in SCE's rate cases and result in a regulatory asset for recovery of deferred income taxes in future periods. The difference between the authorized amounts as determined in SCE's rate cases, adjusted for balancing and memorandum account activities, and the recorded flow-through items also result in increases or decreases in regulatory assets with a corresponding impact on the effective tax rate to the extent that recorded deferred amounts are expected to be recovered in future rates. For further information, see Note 11. Tax Disputes In 2020, Edison International recorded favorable tax positions in connection with the Edison Mission Energy bankruptcy that were fully reserved. Based on information identified during the second quarter of 2023, the Company wrote off the total claim and related reserve in the amount of approximately $268 million. Tax years that remain open for examination by the IRS and the California Franchise Tax Board ("FTB") are 2020 – 2022 and 2013 – 2022, respectively.

Compensation and Benefit Plans

Compensation and Benefit Plans	9 Months Ended
Compensation and Benefit Plans	Sep. 30, 2023
Compensation and Benefit Plans
Compensation and Benefit Plans	Note 9. Pension Plans Net periodic pension expense components are: Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 Edison International: Service cost $ 25 $ 30 $ 75 $ 90 Non-service cost (benefit) Interest cost 45 27 135 81 Expected return on plan assets (54) (57) (162) (171) Settlement costs — — — 3 Amortization of net loss 1 — 1 2 3 Regulatory adjustment (12) 2 (36) 6 Total non-service benefit 2 $ (21) $ (27) $ (61) $ (78) Total expense $ 4 $ 3 $ 14 $ 12 SCE: Service cost $ 24 $ 29 $ 72 $ 87 Non-service cost (benefit) Interest cost 42 25 126 75 Expected return on plan assets (51) (54) (153) (162) Settlement costs — — — 3 Amortization of net loss 1 — 1 — 3 Regulatory adjustment (12) 2 (36) 6 Total non-service benefit 2 $ (21) $ (26) $ (63) $ (75) Total expense $ 3 $ 3 $ 9 $ 12 1 Represents the amount of net loss reclassified from other comprehensive loss. 2 Included in "Other Income" on Edison International's and SCE’s consolidated statements of income. Postretirement Benefits Other Than Pensions ("PBOP") Net periodic PBOP expense components for Edison International and SCE are: Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 Service cost $ 5 $ 8 $ 15 $ 24 Non-service cost (benefit) Interest cost 18 14 54 42 Expected return on plan assets (27) (24) (81) (72) Amortization of net gain (12) (12) (36) (36) Regulatory adjustment 16 14 48 42 Total non-service benefit 1 $ (5) $ (8) $ (15) $ (24) Total expense $ — $ — $ — $ — 1 Included in "Other income" on Edison International ' s and SCE ' s consolidated statements of income .

Investments

Investments	9 Months Ended
Investments	Sep. 30, 2023
Investments
Investments	Note 10. Investments Nuclear Decommissioning Trusts Future decommissioning costs related to SCE's nuclear assets are expected to be funded from independent decommissioning trusts. The following table sets forth amortized cost and fair value of the trust investments (see Note 4 for a discussion of fair value of the trust investments): Amortized Costs Fair Values Longest September 30, December 31, September 30, December 31, (in millions) Maturity Dates 2023 2022 2023 2022 Municipal bonds 2061 $ 632 $ 672 $ 682 $ 754 Government and agency securities 2073 1,146 1,025 1,210 1,091 Corporate bonds 2070 350 351 376 377 Short-term investments and receivables/payables 1 One-year 115 110 125 116 Total debt securities and other $ 2,243 $ 2,158 2,393 2,338 Equity securities 1,550 1,610 Total $ 3,943 $ 3,948 1 As of December 31, 2022, short-term investments included $41 million of repurchase agreement payable by financial institutions which earned interest, was 97% secured by U.S. Treasury securities and matured on January 3, 2023. Trust fund earnings (based on specific identification) increase the trust fund balance and the asset retirement obligation ("ARO") regulatory liability. Unrealized holding gains, net of losses, were $1.5 billion and $1.6 billion at September 30, 2023 and December 31, 2022, respectively. Trust assets are used to pay income taxes arising from trust investing activity. Deferred tax liabilities related to net unrealized gains were $313 million and $321 million at September 30, 2023 and December 31, 2022, respectively. Accordingly, the fair value of trust assets available to pay future decommissioning costs, net of deferred income taxes, totaled $3.6 billion at both September 30, 2023 and December 31, 2022. The following table summarizes the gains and losses for the trust investments: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Gross realized gains $ 48 $ 22 $ 243 $ 111 Gross realized losses (38) (35) (69) (96) Net unrealized (losses)/gains for equity securities (81) (83) (17) (515) Due to regulatory mechanisms, changes in the assets of the trusts from income or loss items do not materially affect earnings. Edison International Parent and Other's Investments Edison International Parent and Other hold strategic investments in companies focused on developing electric technologies and services, included as "Other investments" on Edison International's consolidated balance sheets. As of September 30, 2023, these investments consisted of $13 million of equity investments without readily determinable fair values. As of December 31, 2022, these investments consisted of $5 million of marketable securities and $12 million of equity investments without readily determinable fair values. For further information of fair value and unrealized gains/(losses) of marketable securities, which are recorded in "Other income" on Edison Internationals' consolidated statements of income, see Note 4 and Note 15, respectively. The equity investments without readily determinable fair values balances included cumulative upward adjustments of $9 million, resulting primarily from values determined by additional capital infusions, at both September 30, 2023 and December 31, 2022.

Regulatory Assets and Liabiliti

Regulatory Assets and Liabilities	9 Months Ended
Regulatory Assets and Liabilities	Sep. 30, 2023
Regulatory Assets and Liabilities
Regulatory Assets and Liabilities	Note 11. Regulatory Assets SCE's regulatory assets included on its consolidated balance sheets are: September 30, December 31, (in millions) 2023 2022 Current: Regulatory balancing and memorandum accounts $ 2,357 $ 2,400 Power contracts — 71 Other 51 26 Total current 2,408 2,497 Long-term: Deferred income taxes 5,456 5,178 Unamortized investments, net of accumulated amortization 109 113 Unamortized loss on reacquired debt 100 109 Regulatory balancing and memorandum accounts 1,192 1,589 Environmental remediation 233 241 Recovery assets 1,571 834 Other 113 117 Total long-term 8,774 8,181 Total regulatory assets $ 11,182 $ 10,678 Regulatory Liabilities SCE's regulatory liabilities included on its consolidated balance sheets are: September 30, December 31, (in millions) 2023 2022 Current: Regulatory balancing and memorandum accounts $ 685 $ 584 Energy derivatives — 338 Other 32 42 Total current 717 964 Long-term: Costs of removal 2,673 2,589 Deferred income taxes 2,227 2,250 Recoveries in excess of ARO liabilities 1,285 1,231 Regulatory balancing and memorandum accounts 1,377 1,116 Pension and other postretirement benefits 984 1,007 Other 24 18 Total long-term 8,570 8,211 Total regulatory liabilities $ 9,287 $ 9,175 Net Regulatory Balancing and Memorandum Accounts The following table summarizes the significant components of regulatory balancing and memorandum accounts included in the above tables of regulatory assets and liabilities: September 30, December 31, (in millions) 2023 2022 Asset (liability) Energy resource recovery account $ (141) $ 1,580 Portfolio allocation balancing account 929 (73) New system generation balancing account 237 (63) Public purpose programs and energy efficiency programs (1,805) (1,577) Base revenue requirement balancing account 1,006 1,108 GRC wildfire mitigation balancing accounts 174 67 Residential uncollectibles balancing account 51 — Greenhouse gas auction revenue and low carbon fuel standard revenue (393) (289) FERC balancing accounts (208) (123) Wildfire and drought restoration accounts 432 352 Wildfire-related memorandum accounts 985 1,168 Risk management balancing account 1 (74) — COVID-19-related memorandum accounts 66 67 Customer service re-platform memorandum account 96 64 Tax accounting memorandum account and pole loading balancing account 61 90 Excess bond and power charge balancing account 11 (56) Other 60 (26) Asset $ 1,487 $ 2,289 1 The risk management balancing account is used to support the administration of the customer-funded self-insurance program. See "Note 12 — Contingencies — Southern California Wildfires and Mudslides — Wildfire Insurance Coverage" for more details .

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Sep. 30, 2023
Commitments and Contingencies Disclosure
Commitments and Contingencies	Note 12. Commitments and Contingencies Indemnities Edison International and SCE have various financial and performance guarantees and indemnity agreements which are issued in the normal course of business. Edison International and SCE have agreed to provide indemnifications through contracts entered into in the normal course of business. These are primarily indemnifications against adverse litigation outcomes in connection with underwriting agreements, indemnities for specified environmental liabilities and income taxes with respect to assets sold or other contractual arrangements. Edison International's and SCE's obligations under these agreements may or may not be limited in terms of time and/or amount, and in some instances Edison International and SCE may have recourse against third parties. Edison International and SCE have not recorded a liability related to these indemnities. The overall maximum amount of the obligations under these indemnifications cannot be reasonably estimated. Contingencies In addition to the matters disclosed in these Notes, Edison International and SCE are involved in other legal, tax, and regulatory proceedings before various courts and governmental agencies regarding matters arising in the ordinary course of business. Edison International and SCE believe the outcome of each of these other proceedings will not materially affect its financial position, results of operations and cash flows. Southern California Wildfires and Mudslides California has experienced unprecedented weather conditions in recent years due to climate change, and wildfires in SCE's territory, including those where SCE's equipment may be alleged to be associated with the fire's ignition, have caused loss of life and substantial damage in recent years. SCE's service territory remains susceptible to additional wildfire activity. Numerous claims related to wildfire events have been initiated against SCE and Edison International. Edison International and SCE have incurred material losses in connection with the 2017/2018 Wildfire/Mudslide Events (defined below), which are described below. In addition, SCE's equipment has been, and may further be, alleged to be associated with wildfires that have originated in Southern California subsequent to 2018. Liability Overview The extent of legal liability for wildfire-related damages in actions against utilities depends on a number of factors, including whether the utility substantially caused or contributed to the damages and whether parties seeking recovery of damages will be required to show negligence in addition to causation. California courts have previously found utilities to be strictly liable for property damage along with associated interest and attorneys' fees, regardless of fault, by applying the theory of inverse condemnation when a utility's facilities were determined to be a substantial cause of a wildfire that caused the property damage. If inverse condemnation is held to be inapplicable to SCE in connection with a wildfire, SCE still could be held liable for property damages and associated interest if the property damages were found to have been proximately caused by SCE's negligence. If SCE were to be found negligent, SCE could also be held liable for, among other things, fire suppression costs, business interruption losses, evacuation costs, clean-up costs, medical expenses, and personal injury/wrongful death claims. Additionally, SCE could potentially be subject to fines and penalties for alleged violations of CPUC rules and state laws investigated in connection with the ignition of a wildfire. While investigations into the cause of a wildfire event are conducted by one or more fire agencies, fire agency findings do not determine legal causation of or assign legal liability for a wildfire event. Final determinations of legal causation and liability for wildfire events, including determinations of whether SCE was negligent, would only be made during lengthy and complex litigation processes and settlements may be reached before determinations of legal liability are ever made. Even when investigations are still pending or legal liability is disputed, an assessment of likely outcomes, including through future settlement of disputed claims, may require estimated losses to be accrued under accounting standards. Each reporting period, management reviews its loss estimates for remaining alleged and potential claims related to wildfire events. The process for estimating losses associated with alleged and potential wildfire related claims requires management to exercise significant judgment based on a number of assumptions and subjective factors, including, but not limited to: estimates of known and expected claims by third parties based on currently available information, opinions of counsel regarding litigation risk, the status of and developments in the course of litigation, and prior experience litigating and settling wildfire litigation claims. As additional information becomes available, management's estimates and assumptions regarding the causes and financial impact of wildfire events may change. Actual losses incurred may be higher or lower than estimated based on several factors, including the uncertainty in estimating damages that have been or may be alleged. 2017/2018 Wildfire/Mudslide Events Wildfires in SCE's territory in December 2017 and November 2018 caused loss of life, substantial damage to both residential and business properties, and service outages for SCE customers. The investigating government agencies, the Ventura County Fire Department ("VCFD") and California Department of Forestry and Fire Protection ("CAL FIRE"), have determined that the largest of the 2017 fires in SCE's territory originated on December 4, 2017, in the Anlauf Canyon area of Ventura County (the investigating agencies refer to this fire as the "Thomas Fire"), followed shortly thereafter by a second fire that originated near Koenigstein Road in the City of Santa Paula (the "Koenigstein Fire"). The December 4, 2017 fires eventually burned substantial acreage in both Ventura and Santa Barbara Counties. According to CAL FIRE, the Thomas and Koenigstein Fires, collectively, burned over 280,000 acres, destroyed or damaged an estimated 1,343 structures and resulted in two confirmed fatalities. The largest of the November 2018 fires in SCE's territory, known as the "Woolsey Fire," originated in Ventura County and burned acreage in both Ventura and Los Angeles Counties. According to CAL FIRE, the Woolsey Fire burned almost 100,000 acres, destroyed an estimated 1,643 structures, damaged an estimated 364 structures and resulted in three confirmed fatalities. Four additional fatalities are alleged to have been associated with the Woolsey Fire. As described below, multiple lawsuits related to the Thomas and Koenigstein Fires and the Woolsey Fire have been initiated against SCE and Edison International. Some of the Thomas and Koenigstein Fires lawsuits claim that SCE and Edison International have responsibility for the damages caused by debris flows and flooding in Montecito and surrounding areas in January 2018 (the "Montecito Mudslides") based on a theory alleging that SCE has responsibility for the Thomas and/or Koenigstein Fires and further alleging that the Thomas and/or Koenigstein Fires proximately caused the Montecito Mudslides. According to Santa Barbara County initial reports, the Montecito Mudslides destroyed an estimated 135 structures, damaged an estimated 324 structures, and resulted in 21 confirmed fatalities, with two additional fatalities presumed but not officially confirmed. The Thomas Fire, the Koenigstein Fire, the Montecito Mudslides and the Woolsey Fire are each referred to as a "2017/2018 Wildfire/Mudslide Event," and, collectively, referred to as the "2017/2018 Wildfire/Mudslide Events." Recent Developments Each reporting period, management reviews its loss estimates for remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events. Management’s third quarter 2023 review included a review of information obtained from settling claims in the 2017/2018 Wildfire/Mudslide Events litigations through the third quarter of 2023, including higher than expected costs to settle claims. Management’s review also included a review of information obtained in the third quarter of 2023 regarding the nature of claims remaining in the 2017/2018 Wildfire/Mudslide Events litigations. As a result of management's third quarter 2023 review, a $475 million increase in estimated losses for the 2017/2018 Wildfire/Mudslide Events as of September 30, 2023 was recorded. As a result, SCE recorded expected recoveries through FERC electric rates of $27 million against the charge. The resulting net charge to earnings was $448 million ( $323 million after-tax). As of September 30, 2023, SCE had paid $8.4 billion under executed settlements, had $209 million to be paid under executed settlements, including $65 million to be paid under the SED Agreement (as defined below), and had $728 million of estimated losses for remaining alleged and potential claims reflected on its consolidated balance sheets related to the 2017/2018 Wildfire/Mudslide Events. As of the same date, SCE had assets for expected recoveries through FERC electric rates of $51 million on its consolidated balance sheets and had exhausted expected insurance recoveries related to the 2017/2018 Wildfire/Mudslide Events. The estimated losses for the 2017/2018 Wildfire/Mudslide Events do not include an estimate of potential As of the filing of this report, SCE has not concluded that losses related to funds disbursed by Cal OES are probable. Edison International and SCE may incur a material loss in excess of amounts accrued in connection with the remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events. Due to the number of uncertainties and possible outcomes related to the 2017/2018 Wildfire/Mudslide Events litigation, Edison International and SCE cannot estimate the upper end of the range of reasonably possible losses that may be incurred. Estimated losses for the 2017/2018 Wildfire/Mudslide Events litigation are based on a number of assumptions and are subject to change as additional information becomes available. Actual losses incurred may be higher or lower than estimated based on several factors, including the uncertainty in estimating damages that have been or may be alleged. For instance, SCE will receive additional information with respect to damages claimed as the claims mediation processes progress. Other factors that can cause actual losses incurred to be higher or lower than estimated include the ability to reach settlements and the outcomes of settlements reached through the ongoing claims mediation processes, uncertainties related to the sufficiency of insurance held by plaintiffs, uncertainties related to the litigation processes, including whether plaintiffs will ultimately pursue claims, uncertainty as to the legal and factual determinations to be made during litigation, including uncertainty as to the contributing causes of the 2017/2018 Wildfire/Mudslide Events, the complexities associated with fires that merge and whether inverse condemnation will be held applicable to SCE with respect to damages caused by the Montecito Mudslides, and the uncertainty as to how these factors impact future settlements. The CPUC and FERC may not allow SCE to recover uninsured losses through electric rates if it is determined that such losses were not prudently incurred. SCE will seek rate recovery of prudently incurred losses and related costs realized in connection with the 2017/2018 Wildfire/Mudslide Events in excess of available insurance, other than for any obligations under the SED Agreement (as defined below). See "Loss Estimates for Third Party Claims and Potential Recoveries from Insurance and through Electric Rates" below for additional information. External Investigations and Internal Review The VCFD and CAL FIRE have jointly issued reports concerning their findings regarding the causes of the Thomas Fire and the Koenigstein Fire. The reports did not address the causes of the Montecito Mudslides. SCE has also received a non-final redacted draft of a report from the VCFD regarding Woolsey Fire (the "Redacted Woolsey Report"). SCE cannot predict when the VCFD will release its final report regarding the Woolsey Fire. The CPUC's Safety and Enforcement Division ("SED") conducted investigations to assess SCE's compliance with applicable rules and regulations in areas impacted by the Thomas, Koenigstein and Woolsey Fires. As discussed below, in October 2021, SCE and the SED executed the SED Agreement (as defined below) to resolve the SED's investigations into the 2017/2018 Wildfire/Mudslide Events. The California Attorney General's Office has completed its investigation of the Thomas Fire and the Woolsey Fire without pursuing criminal charges. SCE's internal review into the facts and circumstances of each of the 2017/2018 Wildfire/Mudslide Events is complex and time consuming. SCE expects to obtain and review additional information and materials in the possession of third parties during the course of its internal reviews and the litigation processes. Thomas Fire On March 13, 2019, the VCFD and CAL FIRE jointly issued a report concluding, after ruling out other possible causes, that the Thomas Fire was started by SCE power lines coming into contact during high winds, resulting in molten metal falling to the ground. However, the report does not state that their investigation found molten metal on the ground. At this time, based on available information, SCE believes that it is likely that its equipment was not associated with the ignition of the Thomas Fire. Based on publicly available radar data showing a smoke plume in the Anlauf Canyon area emerging in advance of the report's indicated start time and other evidence, SCE believes that the Thomas Fire started at least 12 minutes prior to any issue involving SCE's system and at least 15 minutes prior to the start time indicated in the report. SCE is continuing to assess the extent of damages that may be attributable to the Thomas Fire. Koenigstein Fire On March 20, 2019, the VCFD and CAL FIRE jointly issued a report finding that the Koenigstein Fire was caused when an energized SCE electrical wire separated and fell to the ground along with molten metal particles and ignited the dry vegetation below. SCE believes that its equipment was associated with the ignition of the Koenigstein Fire. SCE is continuing to assess the extent of damages that may be attributable to the Koenigstein Fire. Montecito Mudslides SCE's internal review includes inquiry into whether the Thomas and/or Koenigstein Fires proximately caused or contributed to the Montecito Mudslides, whether, and to what extent, the Thomas and/or Koenigstein Fires were responsible for the damages in the Montecito area and other factors that potentially contributed to the losses that resulted from the Montecito Mudslides. Many other factors, including, but not limited to, weather conditions and insufficiently or improperly designed and maintained debris basins, roads, bridges and other channel crossings, could have proximately caused, contributed to or exacerbated the losses that resulted from the Montecito Mudslides. At this time, based on available information, SCE has not been able to determine whether the Thomas Fire or the Koenigstein Fire, or both, were responsible for the damages in the Montecito area. In the event that SCE is determined to have caused the fire that spread to the Montecito area, SCE cannot predict whether, if fully litigated, the courts would conclude that the Montecito Mudslides were caused or contributed to by the Thomas and/or Koenigstein Fires or that SCE would be liable for some or all of the damages caused by the Montecito Mudslides. Woolsey Fire SCE's internal review into the facts and circumstances of the Woolsey Fire is ongoing. SCE has reported to the CPUC that there was an outage on SCE's electric system in the vicinity of where the Woolsey Fire reportedly began on November 8, 2018. SCE is aware of witnesses who saw fire in the vicinity of SCE's equipment at the time the fire was first reported. While SCE did not find evidence of downed electrical wires on the ground in the suspected area of origin, it observed a pole support wire in proximity to an electrical wire that was energized prior to the outage. The Redacted Woolsey Report states that the VCFD investigation team determined that electrical equipment owned and operated by SCE was the cause of the Woolsey Fire. Absent additional evidence, SCE believes that it is likely that its equipment was associated with the ignition of the Woolsey Fire. SCE expects to obtain and review additional information and materials in the possession of CAL FIRE and others during the course of its internal review and the Woolsey Fire litigation process, including SCE equipment that has been retained by CAL FIRE. Litigation Multiple lawsuits related to the 2017/2018 Wildfire/Mudslide Events naming SCE as a defendant have been filed by three categories of plaintiffs: individual plaintiffs, subrogation plaintiffs and public entity plaintiffs. A number of the lawsuits also name Edison International as a defendant and some of the lawsuits were filed as purported class actions. As of September 30, 2023, in addition to the outstanding claims of approximately 2,000 individual plaintiffs, there were alleged and potential claims of certain public entity plaintiffs, including Cal OES and Cal Fire, outstanding. The litigation could take a number of years to be resolved because of the complexity of the matters and number of plaintiffs. On October 4, 2018, the Los Angeles Superior Court denied Edison International's and SCE's challenge to the application of inverse condemnation to SCE with respect to the Thomas and Koenigstein Fires and, on February 26, 2019, the California Supreme Court denied SCE's petition to review the Superior Court's decision. In April 2022, following a stipulated judgment entered against SCE in the TKM litigation, SCE filed an appeal related to inverse condemnation in the California Court of Appeal. In January 2019, SCE filed a cross-complaint against certain local public entities alleging that failures by these entities, such as failure to adequately plan for flood hazards and build and maintain adequate debris basins, roads, bridges and other channel crossings, among other things, caused, contributed to or exacerbated the losses that resulted from the Montecito Mudslides. These cross-claims in the Montecito Mudslides litigation were not released as part of the Local Public Entity Settlements (as defined below). Settlements In the fourth quarter of 2019, SCE paid $360 million to a number of local public entities to resolve those parties' collective claims arising from the 2017/2018 Wildfire/Mudslide Events (the "Local Public Entity Settlements"). In the third quarter of 2020, Edison International and SCE entered into an agreement (the "TKM Subrogation Settlement") under which all of the insurance subrogation plaintiffs' in the Thomas Fire, Koenigstein Fire and Montecito Mudslides litigation (the "TKM Subrogation Plaintiffs") collective claims arising from the Thomas Fire, Koenigstein Fire or Montecito Mudslides have been resolved. Under the TKM Subrogation Settlement, SCE paid the TKM Subrogation Plaintiffs an aggregate of $1.2 billion in October 2020 and also agreed to pay $0.555 for each dollar in claims to be paid by the TKM Subrogation Plaintiffs to their policy holders on or before July 15, 2023, up to an agreed upon cap. In January 2021, Edison International and SCE entered into an agreement (the "Woolsey Subrogation Settlement") under which all of the insurance subrogation plaintiffs' in the Woolsey Fire litigation (the "Woolsey Subrogation Plaintiffs") collective claims arising from the Woolsey Fire have been resolved. Under the Woolsey Subrogation Settlement, SCE paid the Woolsey Subrogation Plaintiffs an aggregate of $2.2 billion in March and April 2021. SCE has also agreed to pay $0.67 for each dollar in claims to be paid by the Woolsey Subrogation Plaintiffs to their policy holders on or before July 15, 2023, up to an agreed upon cap. As of September 30, 2023, SCE has also entered into settlements with approximately 11,000 indi Edison International and SCE did not admit wrongdoing or liability as part of any of the settlements described above. Other claims and potential claims related to the 2017/2018 Wildfire/Mudslide Events remain. SCE continues to explore reasonable settlement opportunities with other plaintiffs in the outstanding 2017/2018 Wildfire/Mudslide Events litigation. SED Agreement In October 2021, SCE and the SED executed an agreement (the "SED Agreement") to resolve the SED's investigations into the 2017/2018 Wildfire/Mudslide Events and three other 2017 wildfires for, among other things, aggregate costs of $550 million. The $550 million in costs comprised of a $110 million fine to be paid to the State of California General Fund, $65 million of shareholder-funded safety measures, and an agreement by SCE to waive its right to seek cost recovery in CPUC-jurisdictional rates for $375 million of third-party uninsured claims payments. The SED Agreement provides that SCE may, on a permanent basis, exclude from its ratemaking capital structure any after-tax charges to equity or debt borrowed to finance costs incurred under the SED Agreement. The SED Agreement also imposes other obligations on SCE, including reporting requirements and safety-focused studies. SCE's obligations under the SED Agreement commenced on August 15, 2022, when CPUC approval of the SED Agreement became final and non-appealable. SCE did not admit imprudence, negligence or liability with respect to the 2017/2018 Wildfire/Mudslide Events in the SED Agreement. Loss Estimates for Third Party Claims and Potential Recoveries from Insurance and through Electric Rates At September 30, 2023 and December 31, 2022, Edison International's and SCE's consolidated balance sheets included fixed payments to be made under executed settlement agreements and accrued estimated losses of $937 million and $1.1 billion, respectively, for the 2017/2018 Wildfire/Mudslide Events. The following table presents changes in estimated losses since December 31, 2022: (in millions) Balance at December 31, 2022 1 $ 1,119 Increase in accrued estimated losses 565 Amounts paid (747) Balance at September 30, 2023 2 $ 937 1 At December 31, 2022, $121 million in current liabilities, wildfire-related claims, on Edison International's and SCE's consolidated balance sheets consisted of $65 million of settlements executed and $56 million of short term payables under the SED Agreement in connection with the 2017/2018 Wildfire/Mudslide Events. At December 31, 2022, the $1,687 million included in deferred credits and other liabilities, wildfire-related claims, on Edison International's and SCE's consolidated balance sheets included Edison International's and SCE's best estimate of expected losses for remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events of $934 million, $64 million of long term payables under the SED Agreement and other wildfire-related claims estimates of $689 million. 2 At September 30, 2023, $150 million in current liabilities, wildfire-related claims, on Edison International's and SCE's consolidated balance sheets consisted of $144 million of settlements executed and $6 million of short term payables under the SED Agreement in connection with the 2017/2018 Wildfire/Mudslide Events. At September 30, 2023, the $1,583 million included in deferred credits and other liabilities, wildfire-related claims, on Edison International's and SCE's consolidated balance sheets included Edison International's and SCE's best estimate of expected losses for remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events of $728 million, $59 million of long term payables under the SED Agreement and other wildfire-related claims estimates of $796 million. For the three and nine months ended September 30, 2023 and 2022, Edison International's and SCE's consolidated statements of income included charges for the estimated losses, net of expected recoveries from insurance and FERC customers, related to the 2017/2018 Wildfire/Mudslide Events as follows: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Charge for wildfire-related claims $ 475 $ 880 $ 565 $ 1,296 Expected revenue from FERC customers (27) (50) (33) (76) Total pre-tax charge 448 830 532 1,220 Income tax benefit (125) (232) (148) (341) Total after-tax charge $ 323 $ 598 $ 384 $ 879 For events that occurred in 2017 and early 2018, principally the Thomas and Koenigstein Fires and Montecito Mudslides, SCE had $1.0 billion of wildfire-specific insurance coverage, subject to a self-insured retention of $10 million per occurrence. For the Woolsey Fire, SCE had an additional $1.0 billion of wildfire-specific insurance coverage, subject to a self-insured retention of $10 million per occurrence. In total, through September 30, 2023, SCE has accrued estimated losses of $9.3 billion, has paid or is obligated to pay approximately $8.6 billion in settlements, including $65 million to be paid under the SED Agreement, and has recovered $2.0 billion from its insurance carriers in relation to the 2017/2018 Wildfire/Mudslide Events. Recovery of SCE's losses realized in connection with the 2017/2018 Wildfire/Mudslide Events in excess of available insurance is subject to approval by regulators. Under accounting standards for rate-regulated enterprises, SCE defers costs as regulatory assets when it concludes that such costs are probable of future recovery in electric rates. SCE utilizes objectively determinable evidence to form its view on probability of future recovery. The only directly comparable precedent in which a California investor-owned utility has sought recovery for uninsured wildfire-related costs is San Diego Gas & Electric's ("SDG&E") requests for cost recovery related to 2007 wildfire activity, where the FERC allowed recovery of all FERC-jurisdictional wildfire-related costs while the CPUC rejected recovery of all CPUC-jurisdictional wildfire-related costs based on a determination that SDG&E did not meet the CPUC's prudency standard. As a result, while SCE does not agree with the CPUC's decision, it believes that the CPUC's interpretation and application of the prudency standard to SDG&E creates substantial uncertainty regarding how that standard will be applied to an investor-owned utility in wildfire cost-recovery proceedings for fires ignited prior to July 12, 2019. SCE will continue to evaluate the probability of recovery based on available evidence, including judicial, legislative and regulatory decisions, including any CPUC decisions illustrating the interpretation and/or application of the prudency standard when making determinations regarding recovery of uninsured wildfire-related costs. While the CPUC has not made a determination regarding SCE's prudency relative to any of the 2017/2018 Wildfire/Mudslide Events, SCE is unable to conclude, at this time, that uninsured CPUC-jurisdictional wildfire-related costs are probable of recovery through electric rates. SCE would record a regulatory asset at the time it obtains sufficient information to support a conclusion that recovery is probable. In August 2023, SCE filed an application ("TKM Application") with the CPUC to seek rate recovery of $2.4 billion of prudently incurred losses related to the Thomas Fire, the Koenigstein Fire and the Montecito Mudslides, consisting of Through the operation of its FERC Formula Rate, and based upon the precedent established in SDG&E's recovery of FERC-jurisdictional wildfire-related costs, SCE believes it is probable it will recover its FERC-jurisdictional wildfire and mudslide related costs and has recorded total expected recoveries of $409 million within the FERC balancing account. This was the FERC portion of the total estimated losses accrued. As of September 30, 2023, collections have reduced the regulatory assets remaining in the FERC balancing account to $51 million. As of September 30, 2023, SCE has $173 million in assets recorded in property, plant and equipment in relation to restoration costs related to the 2017/2018 Wildfire/Mudslide Events. These assets would be impaired if the restoration costs are permanently disallowed by the CPUC in cost recovery proceedings. In its TKM Application, SCE is seeking capital recovery of approximately $65 million in restoration costs related to the Thomas and Koenigstein Fires. SCE expects to seek to recover the costs incurred for reconstructing its system and restoring service to structures that were damaged or destroyed by the Woolsey Fire in the future. Post-2018 Wildfires Several wildfires have significantly impacted portions of SCE's service territory after 2018 (the wildfires that originated in Southern California after 2018 where SCE's equipment may be alleged to be associated with the fire's ignition are referred to collectively as the "Post-2018 Wildfires"). Numerous claims related to the Post-2018 Wildfires have been initiated against SCE and Edison International. The SED is also conducting investigations with respect to several Post-2018 Wildfires. During the nine months ended September 30, 2023, SCE accrued estimated losses of $124 million for claims related to the Post-2018 Wildfires, against which SCE has recorded expected recoveries from insurance of $114 million. The resulting net charge to earnings was $10 million ( $7 million after-tax). Through SCE has recorded and expected recoveries through electric rates of $166 million related to the Post-2018 Wildfires. The after-tax net charges to earnings recorded through September 30, 2023 have been $48 million. As of September 30, 2023, SCE had paid $30 million under executed settlements related to the Post-2018 Wildfires and Edison International's and SCE's estimated losses for remaining alleged and potential claims related to the Post-2018 Wildfires was $790 million. As of the same date, SCE had assets for expected recoveries through insurance and third parties of $560 million and through electric rates of $166 million on its consolidated balance sheets related to the Post-2018 Wildfires. Expected recoveries from insurance recorded for the Post-2018 Wildfires are supported by SCE's insurance coverage for multiple policy years. 2019 Saddle Ridge Fire The "Saddle Ridge Fire," originated in Los Angeles County in October 2019 and burned approximately 9,000 acres, destroyed an estimated 19 structures, damaged an estimated 88 structures, and resulted in one fatality and injuries to eight fire fighters. In August 2023, SCE received a signed report of investigation from the Los Angeles Fire Department ("LAFD"), in which the LAFD stated with respect to the Saddle Ridge Fire that the cause of ignition was unintentional, the form of heat was undetermined, the item first ignited was undetermined and the material type first ignited was undetermined. The LAFD report noted that no other competent ignition sources other than SCE’s transmission lines were found in the specific origin area of the Saddle Ridge Fire. A jury trial in the Saddle Ridge Fire litigation is currently set for May 2024. Based on pending litigation and without considering insurance recoveries, it is reasonably possible that SCE will incur a material loss in connection with the Saddle Ridge Fire, but the range of reasonably possible losses that could be incurred cannot be estimated at this time. SCE has not accrued a charge for potential losses relating to the Saddle Ridge Fire. 2020 Bobcat Fire The "Bobcat Fire" was reported in the vicinity of Cogswell Dam in Los Angeles County in September 2020. The United States Forest Service ("USFS") has reported that the Bobcat Fire burned approximately 116,000 acres in Los Angeles County, destroyed an estimated 87 homes, one commercial property and 83 minor structures, damaged an estimated 28 homes and 19 minor structures, and resulted in injuries to six firefighters. In addition, fire authorities have estimated suppression costs at approximately $80 million. An investigation into the cause of the Bobcat Fire was led by the USFS.

Equity

Equity	9 Months Ended
Equity	Sep. 30, 2023
Equity
Equity	Note 13. Equity Common Stock Issuances As of September 30, 2023, Edison International had not issued any shares through its "at-the-market" ("ATM") program established in August 2022. Under the ATM program, Edison International may sell shares of its common stock having an aggregate sales price of up to . Edison International continued to settle its ongoing common stock requirements of various internal programs through issuance of new common stock. During the three months ended September 30, 2023, 204,724 shares of common stock were issued as stock compensation awards for net cash receipts of $11 million, 61,922 shares of new common stock were issued in lieu of distributing $4 million to shareholders opting to receive dividend payments in the form of additional common stock, 20,400 shares of common stock were issued to employees through the 401(k) defined contribution savings plan for net cash receipts of $1 million as dividend payments and 29,442 shares of common stock were issued to employees through the Employee Stock Purchase Plan for net cash receipts of $2 million. During the nine months ended September 30, 2023, 1,013,203 shares of common stock were issued as stock compensation awards for net cash receipts of $50 million, 189,927 shares of new common stock were issued in lieu of distributing $13 million to shareholders opting to receive dividend payments in the form of additional common stock, 90,400 shares of common stock were issued to employees through the 401(k) defined contribution savings plan for net cash receipts of $6 million as dividend payments, 55,923 shares of common stock were issued to employees through the Employee Stock Purchase Plan for net cash receipts of $4 million Offer to Purchase Outstanding Preferred Stock Subsequent to September 30, 2023 On October 11, 2023, Edison International commenced a tender offer to purchase its outstanding 5.00% Fixed-Rate Reset Cumulative Perpetual Preferred Stock, Series B ("Series B Preferred Stock") and its 5.375% Fixed-Rate Reset Cumulative Perpetual Preferred Stock, Series A ("Series A Preferred Stock") for a maximum aggregate purchase price in cash of up to $750 million, plus accrued dividends. The consideration for the securities tendered and accepted for purchase will equal $895 per $1,000 liquidation preference of Series B Preferred Stock and $915 per $1,000 liquidation preference of Series A Preferred Stock, plus, in each case, accrued dividends. The tender offer will expire on November 8, 2023. For further information about Series A Preferred Stock and Series B Preferred Stock, see "Notes to Consolidated Financial Statements—Note 14. Equity" in the 2022 Form 10-K.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
Accumulated Other Comprehensive Loss	Sep. 30, 2023
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Loss	Note 14. Accumulated Other Comprehensive Loss Edison International's accumulated other comprehensive loss, net of tax, consist of: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Beginning balance $ (8) $ (48) $ (11) $ (54) Pension and PBOP: Reclassified from accumulated other comprehensive loss 1 — 1 1 7 Foreign currency translation adjustments — — 2 — Change — 1 3 7 Ending Balance $ (8) $ (47) $ (8) $ (47) 1 These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 9 for additional information . SCE's accumulated other comprehensive loss, net of tax, consists of: SCE's accumulated other comprehensive loss, net of tax, consists of: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Beginning balance $ (8) $ (28) $ (8) $ (32) Pension and PBOP – net loss: Reclassified from accumulated other comprehensive loss 1 — 1 — 5 Change — 1 — 5 Ending Balance $ (8) $ (27) $ (8) $ (27) 1 These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 9 for additional information .

Other Income

Other Income	9 Months Ended
Other Income	Sep. 30, 2023
Other Income
Other Income	Note 15. Other Income Other income net of expenses is as follows: Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 SCE other income (expense): Equity allowance for funds used during construction $ 41 $ 30 $ 116 $ 91 Increase in cash surrender value of life insurance policies and life insurance benefits 9 9 29 30 Interest income 68 19 194 36 Net periodic benefit income – non-service components 26 34 78 99 Civic, political and related activities and donations (12) (11) (28) (29) Other (4) (10) (14) (17) Total SCE other income 128 71 375 210 Other income (expense) of Edison International Parent and Other: Net gains (losses) on equity securities — 8 (3) 2 Other 2 6 5 7 Total Edison International other income $ 130 $ 85 $ 377 $ 219

Supplemental Cash Flows Informa

Supplemental Cash Flows Information	9 Months Ended
Supplemental Cash Flows Information	Sep. 30, 2023
Supplemental Cash Flows Information
Supplemental Cash Flows Information	Note 16. Supplemental Cash Flows Information Supplemental cash flows information is: Edison International SCE Nine months ended September 30, (in millions) 2023 2022 2023 2022 Cash payments (receipts): Interest, net of amounts capitalized $ 1,034 $ 788 $ 888 $ 701 Income taxes, net — (49) — (49) Non-cash financing and investing activities: Dividends declared but not paid: Common stock 283 267 350 325 Preference stock of SCE 9 6 9 6 SCE's accrued capital expenditures at September 30, 2023 and 2022 were $584 million and $649 million, respectively. Accrued capital expenditures will be included as an investing activity in the consolidated statements of cash flows in the period paid.

Related-Party Transactions

Related-Party Transactions	9 Months Ended
Related-Party Transactions	Sep. 30, 2023
Related Party Transactions
Related-Party Transactions	Note 17. Related-Party Transactions SCE has previously purchased wildfire liability insurance from EIS, a wholly-owned subsidiary of Edison International. In July 2022, SCE purchased wildfire liability insurance for premiums of $273 million, from EIS for the period to June 30, 2023. EIS fully reinsured the exposure for these policies through the commercial reinsurance market, with reinsurance limits and premiums equal to those of the insurance purchased by SCE, except for a contract for a premium of $93 million under which EIS provided insurance protection to SCE. SCE recorded the premium as insurance expense and recorded equal revenue due to customer funding through regulatory cost recovery mechanisms, therefore there was no earnings impact on SCE's consolidated statement of income. EIS recorded the premium as insurance revenue. On the Edison International consolidated statement of income, the EIS insurance revenue eliminated with SCE's insurance expense, therefore the SCE customer revenues increased the earnings of Edison International. SCE did not have insurance expense and corresponding revenue for the three months ended September 30, 2023, and the amount of insurance expense and corresponding revenue was $44 million for the nine months ended September 30, 2023. The related-party transactions included in SCE's consolidated balance sheets for wildfire-related insurance purchased from EIS and related expected insurance recoveries were as follows: September 30, December 31, (in millions) 2023 2022 Prepaid insurance 1 $ — $ 106 Long-term insurance receivable due from affiliate 431 334 1 Reflected in "Prepaid expenses" on SCE's consolidated balance sheets. The expense for wildfire-related insurance premiums paid to EIS was zero and $67 million for the three months ended September 30, 2023 and 2022, respectively, and $132 million and $146 million for the nine months ended September 30, 2023 and 2022, respectively.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2023
Summary of Significant Accounting Policies
Organization and Basis of Presentation	Organization and Basis of Presentation Edison International is the ultimate parent holding company of Southern California Edison Company ("SCE") and Edison Energy, LLC ("Edison Energy"). SCE is an investor-owned public utility primarily engaged in the business of supplying and delivering electricity to an approximately 50,000 square mile area of Southern California. Edison Energy is a global energy advisory firm providing integrated sustainability and energy solutions to commercial, industrial and institutional customers. Edison Energy's business activities are currently not material to report as a separate business segment. These combined notes to the consolidated financial statements apply to both Edison International and SCE unless otherwise described. Edison International's consolidated financial statements include the accounts of Edison International, SCE, and other controlled subsidiaries. References to Edison International refer to the consolidated group of Edison International and its subsidiaries. References to "Edison International Parent and Other" refer to Edison International Parent and its competitive subsidiaries and "Edison International Parent" refer to Edison International on a stand-alone basis, not consolidated with its subsidiaries. SCE's consolidated financial statements include the accounts of SCE, its controlled subsidiaries and a variable interest entity, SCE Recovery Funding LLC., of which SCE is the primary beneficiary. All intercompany transactions have been eliminated from the consolidated financial statements. Edison International's and SCE's significant accounting policies were described in the "Notes to Consolidated Financial Statements" included in Edison International's and SCE's combined Annual Report on Form 10-K for the year ended December 31, 2022 (the "2022 Form 10-K"). This quarterly report should be read in conjunction with the financial statements and notes included in the 2022 Form 10-K. In the opinion of management, all adjustments, consisting only of adjustments of a normal recurring nature, have been made that are necessary to fairly state the consolidated financial position, results of operations, and cash flows in accordance with accounting principles generally accepted in the United States ("GAAP") for the periods covered by this quarterly report on Form 10-Q. The results of operations for the interim periods presented are not necessarily indicative of the operating results for the full year. The December 31, 2022 financial statement data was derived from the audited financial statements, but does not include all disclosures required by GAAP for complete annual financial statements. Certain prior period amounts have been conformed to the current period's presentation, including the separate presentation of derivative assets and liabilities on Edison International's and SCE's consolidated statements of cash flows.
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash Cash 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. The cash equivalents were as follows: Edison International SCE September 30, December 31, September 30, December 31, (in millions) 2023 2022 2023 2022 Money market funds $ 120 $ 784 $ — $ 647 Cash is temporarily invested until required for check clearing. Checks issued, but not yet paid by the financial institution, are reclassified from cash to accounts payable at the end of each reporting period. The following table sets forth the cash, cash equivalents and restricted cash included in the consolidated statements of cash flows: September 30, December 31, (in millions) 2023 2022 Edison International: Cash and cash equivalents $ 446 $ 914 Short-term restricted cash 1 3 3 Total cash, cash equivalents and restricted cash $ 449 $ 917 SCE: Cash and cash equivalents $ 317 $ 766 Short-term restricted cash 1 1 — Total cash, cash equivalents and restricted cash $ 318 $ 766 1 Reflected in "Other current assets" on Edison International's and SCE’s consolidated balance sheets.
Allowance for Uncollectible Accounts	Allowance for Uncollectible Accounts The allowance for uncollectible accounts is recorded based on SCE's estimate of expected credit losses and adjusted over the life of the receivables as needed. Since the customer base of SCE is concentrated in Southern California and exposes SCE to a homogeneous set of economic conditions, the allowance is measured on a collective basis on the historical amounts written-off, assessment of customer collectibility and current economic trends, including unemployment rates and any likelihood of recession for the region. The following table sets forth the changes in allowance for uncollectible accounts for SCE: Three months ended Three months ended September 30, 2023 September 30, 2022 (in millions) Customers All others Total Customers All others Total Beginning balance $ 326 $ 17 $ 343 $ 364 $ 17 $ 381 Current period provision for uncollectible accounts 2 25 5 30 69 2 71 Write-offs, net of recoveries (22) (6) (28) (24) (2) (26) Ending balance $ 329 $ 16 $ 345 1 $ 409 $ 17 $ 426 Nine months ended Nine months ended September 30, 2023 September 30, 2022 (in millions) Customers All others Total Customers All others Total Beginning balance $ 334 $ 20 $ 354 1 $ 293 $ 16 $ 309 Current period provision for uncollectible accounts 3 65 6 71 160 11 171 Write-offs, net of recoveries (70) (10) (80) (44) (10) (54) Ending balance $ 329 $ 16 $ 345 1 $ 409 $ 17 $ 426 1 Approximately $5 million and $7 million of allowance for uncollectible accounts are included in " Other long-term assets " on SCE's consolidated balance sheets as of September 30, 2023 and December 31, 2022, respectively. 2 This includes $17 million and $57 million of incremental costs, for the three months ended September 30, 2023 and 2022, respectively, which were probable of recovery from customers and recorded as regulatory assets. 3 This includes $44 million and $115 million of incremental costs, for the nine months ended September 30, 2023 and 2022, respectively, which were probable of recovery from customers and recorded as regulatory assets.
Earnings Per Share	Earnings Per Share Edison International computes earnings per common share ("EPS") using the two-class method, which is an earnings allocation formula that determines EPS for each class of common stock and participating security. Edison International's participating securities are stock-based compensation awards, payable in common shares, which earn dividend equivalents on an equal basis with common shares once the awards are vested. See Note 13 for further information. EPS attributable 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) 2023 2022 2023 2022 Basic earnings (loss) per share: Net income (loss) attributable to common shareholders $ 155 $ (128) $ 819 $ 197 Net income (loss) available to common shareholders $ 155 $ (128) $ 819 $ 197 Weighted average common shares outstanding 383 382 383 381 Basic earnings (loss) per share $ 0.40 $ (0.33) $ 2.14 $ 0.52 Diluted earnings (loss) per share: Net income (loss) attributable to common shareholders $ 155 $ (128) $ 819 $ 197 Net income (loss) available to common shareholders $ 155 $ (128) $ 819 $ 197 Income impact of assumed conversions — — 1 — Net income (loss) available to common shareholders and assumed conversions $ 155 $ (128) $ 820 $ 197 Weighted average common shares outstanding 383 382 383 381 Incremental shares from assumed conversions 2 1 2 1 Adjusted weighted average shares – diluted 385 383 385 382 Diluted earnings (loss) per share $ 0.40 $ (0.33) $ 2.13 $ 0.52 In addition to the participating securities discussed above, Edison International also may award stock options, which are payable in common shares and are included in the diluted earnings per share calculation. Stock option awards to purchase 3,231,385 and 5,089,280 shares of common stock for the three months ended September 30, 2023 and 2022, respectively, and 3,230,603 and 5,204,369 shares of common stock for the nine months ended September 30, 2023 and 2022, respectively, were outstanding, but were not included in the computation of diluted earnings per share because the effect would have been antidilutive.
Revenue Recognition	Revenue Recognition Revenue is recognized by Edison International and SCE when a performance obligation to transfer control of the promised goods is satisfied or when services are rendered to customers. This typically occurs when electricity is delivered to customers, which includes amounts for services rendered but unbilled at the end of a reporting period. Regulatory Proceedings FERC 2023 Formula Rate Update In November 2022, SCE filed its 2023 annual update with the FERC with the proposed rates effective January 1, 2023, subject to settlement procedures and refund. Pending resolution of the FERC formula rate proceedings, SCE recognized revenue in the first nine months of 2023 based on the FERC 2023 annual update rate, subject to refund.
Leases	Leases During the quarter ended September 30, 2023, one SCE 15-year
Edison Carrier Solutions	Edison Carrier Solutions SCE operates commercial telecommunications service under the name of Edison Carrier Solutions ("ECS"), leveraging the temporarily available capacity of SCE's telecommunications network. As technology evolves, management is implementing strategic shifts in ECS services, including potential disposition of assets and ceasing to offer certain wire data services. ECS has notified affected customers of its intent to discontinue certain services over time and gave customers the option to discontinue those services. As a result of customer cancellations in the second quarter of 2023, materials and supplies inventory supporting data services are expected to be sold instead of placed into service and have been written-down to net realizable value, resulting in a charge of $13 million. Labor and other costs of $4 million previously recorded as construction work in progress for projects no longer probable of completion were also charged to expense in the period.
Subsequent Event	Subsequent Event In October 2023, SCE entered into two PPAs, which are subject to CPUC approval, with expected initial delivery dates commencing in 2027 and 2028, respectively. The undiscounted future minimum expected payments for these contracts are $48 million in 2027 and $3.0 billion thereafter.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
Summary of Significant Accounting Policies (Tables)	Sep. 30, 2023
Summary of Significant Accounting Policies
Cash Equivalents	Edison International SCE September 30, December 31, September 30, December 31, (in millions) 2023 2022 2023 2022 Money market funds $ 120 $ 784 $ — $ 647
Cash, Cash Equivalents and Restricted Cash	September 30, December 31, (in millions) 2023 2022 Edison International: Cash and cash equivalents $ 446 $ 914 Short-term restricted cash 1 3 3 Total cash, cash equivalents and restricted cash $ 449 $ 917 SCE: Cash and cash equivalents $ 317 $ 766 Short-term restricted cash 1 1 — Total cash, cash equivalents and restricted cash $ 318 $ 766 1 Reflected in "Other current assets" on Edison International's and SCE’s consolidated balance sheets.
Changes in Allowance for Uncollectible Accounts	Three months ended Three months ended September 30, 2023 September 30, 2022 (in millions) Customers All others Total Customers All others Total Beginning balance $ 326 $ 17 $ 343 $ 364 $ 17 $ 381 Current period provision for uncollectible accounts 2 25 5 30 69 2 71 Write-offs, net of recoveries (22) (6) (28) (24) (2) (26) Ending balance $ 329 $ 16 $ 345 1 $ 409 $ 17 $ 426 Nine months ended Nine months ended September 30, 2023 September 30, 2022 (in millions) Customers All others Total Customers All others Total Beginning balance $ 334 $ 20 $ 354 1 $ 293 $ 16 $ 309 Current period provision for uncollectible accounts 3 65 6 71 160 11 171 Write-offs, net of recoveries (70) (10) (80) (44) (10) (54) Ending balance $ 329 $ 16 $ 345 1 $ 409 $ 17 $ 426 1 Approximately $5 million and $7 million of allowance for uncollectible accounts are included in " Other long-term assets " on SCE's consolidated balance sheets as of September 30, 2023 and December 31, 2022, respectively. 2 This includes $17 million and $57 million of incremental costs, for the three months ended September 30, 2023 and 2022, respectively, which were probable of recovery from customers and recorded as regulatory assets. 3 This includes $44 million and $115 million of incremental costs, for the nine months ended September 30, 2023 and 2022, respectively, which were probable of recovery from customers and recorded as regulatory assets.
EPS Attributable to Edison International Common Shareholders	Three months ended September 30, Nine months ended September 30, (in millions, except per-share amounts) 2023 2022 2023 2022 Basic earnings (loss) per share: Net income (loss) attributable to common shareholders $ 155 $ (128) $ 819 $ 197 Net income (loss) available to common shareholders $ 155 $ (128) $ 819 $ 197 Weighted average common shares outstanding 383 382 383 381 Basic earnings (loss) per share $ 0.40 $ (0.33) $ 2.14 $ 0.52 Diluted earnings (loss) per share: Net income (loss) attributable to common shareholders $ 155 $ (128) $ 819 $ 197 Net income (loss) available to common shareholders $ 155 $ (128) $ 819 $ 197 Income impact of assumed conversions — — 1 — Net income (loss) available to common shareholders and assumed conversions $ 155 $ (128) $ 820 $ 197 Weighted average common shares outstanding 383 382 383 381 Incremental shares from assumed conversions 2 1 2 1 Adjusted weighted average shares – diluted 385 383 385 382 Diluted earnings (loss) per share $ 0.40 $ (0.33) $ 2.13 $ 0.52

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Tables)	9 Months Ended
Consolidated Statements of Changes in Equity (Tables)	Sep. 30, 2023
Schedule of Capitalization, Equity [Line Items]
Schedule of Changes in Equity	The following table provides Edison International's changes in equity for the three and nine months ended September 30, 2023: Noncontrolling Equity Attributable to Edison International Shareholders Interests Accumulated Other Preferred Common Comprehensive Retained Preference Total (in millions, except per share amounts) Stock Stock Loss Earnings Subtotal Stock Equity Balance at December 31, 2022 $ 1,978 $ 6,200 $ (11) $ 7,454 $ 15,621 $ 1,901 $ 17,522 Net income — — — 336 336 29 365 Other comprehensive income — — 2 — 2 — 2 Common stock issued — 15 — — 15 — 15 Common stock dividends declared ($0.7375 per share) — — — (282) (282) — (282) Preferred stock dividend declared ($26.875 per share for Series A and $25.00 per share for Series B) — — — (52) (52) — (52) Dividends to noncontrolling interests ($22.281 - $35.937 per share for preference stock) — — — — — (29) (29) Noncash stock-based compensation — 8 — — 8 — 8 Balance at March 31, 2023 $ 1,978 $ 6,223 $ (9) $ 7,456 $ 15,648 $ 1,901 $ 17,549 Net income — — — 380 380 29 409 Other comprehensive income — — 1 — 1 — 1 Common stock issued — 35 — — 35 — 35 Common stock dividends declared ($0.7375 per share) — — — (283) (283) — (283) Dividends to noncontrolling interests ($24.273 - $35.937 per share for preference stock) — — — — — (29) (29) Noncash stock-based compensation — 12 — — 12 — 12 Balance at June 30, 2023 $ 1,978 $ 6,270 $ (8) $ 7,553 $ 15,793 $ 1,901 $ 17,694 Net income — — — 182 182 30 212 Common stock issued — 19 — — 19 — 19 Common stock dividends declared ($0.7375 per share) — — — (283) (283) — (283) Preferred stock dividend declared ($26.875 per share for Series A and $25.00 per share for Series B) — — — (53) (53) — (53) Dividends to noncontrolling interests ($25.1276 - $35.937 per share for preference stock) — — — — — (30) (30) Noncash stock-based compensation — 12 — — 12 — 12 Balance at September 30, 2023 $ 1,978 $ 6,301 $ (8) $ 7,399 $ 15,670 $ 1,901 $ 17,571 The following table provides Edison International's changes in equity for the three and nine months ended September 30, 2022: Noncontrolling Equity Attributable to Edison International Shareholders Interests Accumulated Other Preferred Common Comprehensive Retained Preference Total (in millions, except per share amounts) Stock Stock Loss Earnings Subtotal Stock Equity Balance at December 31, 2021 $ 1,977 $ 6,071 $ (54) $ 7,894 $ 15,888 $ 1,901 $ 17,789 Net income — — — 110 110 26 136 Other comprehensive income — — 2 — 2 — 2 Common stock issued, net of issuance cost — 12 — — 12 — 12 Common stock dividends declared ($0.7000 per share) — — — (267) (267) — (267) Preferred stock dividend declared ($26.875 per share for Series A and $17.08333 per share for Series B) — — — (21) (21) — (21) Dividends to noncontrolling interests ($11.160 - $35.937 per share for preference stock) — — — — — (26) (26) Noncash stock-based compensation — 7 — — 7 — 7 Balance at March 31, 2022 $ 1,977 $ 6,090 $ (52) $ 7,716 $ 15,731 $ 1,901 $ 17,632 Net income — — — 267 267 25 292 Other comprehensive income — — 4 — 4 — 4 Common stock issued, net of issuance cost — 27 — — 27 — 27 Common stock dividends declared ($0.7000 per share) — — — (267) (267) — (267) Dividends to noncontrolling interests ($14.017 - $35.937 per share for preference stock) — — — — — (25) (25) Noncash stock-based compensation — 12 — — 12 — 12 Balance at June 30, 2022 $ 1,977 $ 6,129 $ (48) $ 7,716 $ 15,774 $ 1,901 $ 17,675 Net (loss) income — — — (101) (101) 27 (74) Other comprehensive income — — 1 — 1 — 1 Common stock issued, net of issuance cost — 28 — — 28 — 28 Common stock dividends declared ($0.7000 per share) — — — (267) (267) — (267) Preferred stock dividend declared ($26.875 per share for Series A and $25.00 per share for Series B) (53) (53) — (53) Dividends to noncontrolling interests ($17.8564 - $35.937 per share for preference stock) — — — — — (27) (27) Noncash stock-based compensation and other — 10 — — 10 10 Balance at September 30, 2022 $ 1,977 $ 6,167 $ (47) $ 7,295 $ 15,392 $ 1,901 $ 17,293
SCE
Schedule of Capitalization, Equity [Line Items]
Schedule of Changes in Equity	The following table provides SCE's changes in equity for the three and nine months ended September 30, 2023: Accumulated Additional Other Preference Common Paid-in Comprehensive Retained Total (in millions, except per share amounts) Stock Stock Capital Loss Earnings Equity Balance at December 31, 2022 $ 1,945 $ 2,168 $ 8,441 $ (8) $ 8,243 $ 20,789 Net income — — — — 399 399 Dividends declared on common stock ($0.8048 per share) — — — — (350) (350) Dividends declared on preference stock ($22.281 - $35.937 per share) — — — — (29) (29) Stock-based compensation — — (8) — — (8) Noncash stock-based compensation — — 5 — 1 6 Balance at March 31, 2023 $ 1,945 $ 2,168 $ 8,438 $ (8) $ 8,264 $ 20,807 Net income — — — — 449 449 Dividends declared on common stock ($0.8048 per share) — — — — (350) (350) Dividends declared on preference stock ($24.273 - $35.937 per share) — — — — (29) (29) Stock-based compensation — — (3) — — (3) Noncash stock-based compensation — — 7 — — 7 Balance at June 30, 2023 $ 1,945 $ 2,168 $ 8,442 $ (8) $ 8,334 $ 20,881 Net income — — — — 269 269 Dividends declared on common stock ($0.8048 per share) — — — — (350) (350) Dividends declared on preference stock ($25.1276 - $35.937 per share) — — — — (30) (30) Stock-based compensation — — (1) — — (1) Noncash stock-based compensation and other — — 6 — — 6 Balance at September 30, 2023 $ 1,945 $ 2,168 $ 8,447 $ (8) $ 8,223 $ 20,775 The following table provides SCE's changes in equity for the three and nine months ended September 30, 2022: Accumulated Additional Other Preference Common Paid-in Comprehensive Retained Total (in millions, except per share amounts) Stock Stock Capital Loss Earnings Equity Balance at December 31, 2021 $ 1,945 $ 2,168 $ 7,033 $ (32) $ 8,721 $ 19,835 Net income — — — — 173 173 Other comprehensive income — — — 1 — 1 Dividends declared on common stock ($0.7473 per share) — — — — (325) (325) Dividends declared on preference stock ($11.160 - $35.937 per share) — — — — (26) (26) Stock-based compensation — — (9) — — (9) Noncash stock-based compensation — — 4 — (1) 3 Balance at March 31, 2022 $ 1,945 $ 2,168 $ 7,028 $ (31) $ 8,542 $ 19,652 Net income — — — — 327 327 Other comprehensive income — — — 3 — 3 Capital contribution from Edison International Parent — — 700 — — 700 Dividends declared on common stock ($0.7473 per share) — — — — (325) (325) Dividends declared on preferred and preference stock ($14.017 - $35.937 per share for preference stock) — — — — (25) (25) Stock-based compensation — — (1) — — (1) Noncash stock-based compensation — — 5 — 1 6 Balance at June 30, 2022 $ 1,945 $ 2,168 $ 7,732 $ (28) $ 8,520 $ 20,337 Net loss — — — — (53) (53) Other comprehensive income — — — 1 — 1 Dividends declared on common stock ($0.7473 per share) — — — — (325) (325) Dividends declared on preferred and preference stock ($17.8564 - $35.937 per share for preference stock) — — — — (27) (27) Stock-based compensation — — (2) — — (2) Noncash stock-based compensation and other — — 5 — 5 Balance at September 30, 2022 $ 1,945 $ 2,168 $ 7,735 $ (27) $ 8,115 $ 19,936

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	9 Months Ended
Variable Interest Entities (Tables)	Sep. 30, 2023
Variable Interest Entities
Summary of SCE Recovery Funding LLC on balance sheets	September 30, December 31, (in millions) 2023 2022 Other current assets $ 78 $ 45 Regulatory assets: non-current 1,571 834 Regulatory liabilities: current 22 33 Current portion of long-term debt 1 54 29 Other current liabilities 26 4 Long-term debt 1 1,539 809 1 The bondholders have no recourse to SCE. The long-term debt balance is net of unamortized debt issuance costs.
Summary of the Trusts' Income Statements	Three months ended September 30, (in millions) Trust II Trust III Trust IV Trust V Trust VI 2023 Dividend income $ 2 $ 4 $ 4 $ 4 $ 6 Dividend distributions 2 4 4 4 6 2022 Dividend income $ 2 $ 4 $ 4 $ 4 $ 6 Dividend distributions 2 4 4 4 6 Nine months ended September 30, (in millions) Trust II Trust III Trust IV Trust V Trust VI 2023 Dividend income $ 8 $ 12 $ 13 $ 12 $ 18 Dividend distributions 8 12 13 12 18 2022 Dividend income $ 8 $ 12 $ 13 $ 12 $ 18 Dividend distributions 8 12 13 12 18

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
Fair Value Measurements (Tables)	Sep. 30, 2023
Fair Value Measurements
Fair Value by Level within the Fair Value Hierarchy	September 30, 2023 Netting and (in millions) Level 1 Level 2 Level 3 Collateral 1 Total Assets at fair value Derivative contracts $ — $ 5 $ 34 $ (5) $ 34 Money market funds and other — 22 — — 22 Nuclear decommissioning trusts: Stocks 2 1,550 — — — 1,550 Fixed Income 3 927 1,339 — — 2,266 Short-term investments, primarily cash equivalents 188 29 — — 217 Subtotal of nuclear decommissioning trusts 4 2,665 1,368 — — 4,033 Total assets 2,665 1,395 34 (5) 4,089 Liabilities at fair value Derivative contracts — 45 — (45) — Total liabilities — 45 — (45) — Net assets $ 2,665 $ 1,350 $ 34 $ 40 $ 4,089 December 31, 2022 Netting and (in millions) Level 1 Level 2 Level 3 Collateral 1 Total Assets at fair value Derivative contracts $ — $ 392 $ 67 $ (218) $ 241 Money market funds and other 647 22 — — 669 Nuclear decommissioning trusts: Stocks 2 1,610 — — — 1,610 Fixed Income 3 941 1,281 — — 2,222 Short-term investments, primarily cash equivalents 137 64 — — 201 Subtotal of nuclear decommissioning trusts 4 2,688 1,345 — — 4,033 Total assets 3,335 1,759 67 (218) 4,943 Liabilities at fair value Derivative contracts — 116 4 (119) 1 Total liabilities — 116 4 (119) 1 Net assets $ 3,335 $ 1,643 $ 63 $ (99) $ 4,942 1 Represents the netting of assets and liabilities under master netting agreements and cash collateral. 2 Approximately 75% and 74% SCE's equity investments were in companies located in the United States at September 30, 2023 and December 31, 2022, respectively. 3 Includes corporate bonds, which were diversified by the inclusion of collateralized mortgage obligations and other asset backed securities, of $87 million and $49 million at September 30, 2023 and December 31, 2022, respectively. 4 Excludes net payables of $90 million and $85 million at September 30, 2023 and December 31, 2022, respectively, which consist of interest and dividend receivables as well as receivables and payables related to SCE's pending securities sales and purchases.
Summary of level 3 fair value changes	Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 Fair value of net assets at beginning of period $ 12 $ 32 $ 63 $ 44 Sales — (1) (1) (7) Settlements (23) (25) (47) (54) Total realized/unrealized gains 1 45 47 19 70 Fair value of net assets at end of period $ 34 $ 53 $ 34 $ 53 1 Due to regulatory mechanisms, SCE's realized and unrealized gains and losses are recorded as regulatory assets and liabilities.
Valuation techniques and significant inputs	Fair Value Significant Weighted (in millions) Unobservable Range Average Assets Liabilities Input (per MWh) (per MWh) Congestion revenue rights September 30, 2023 $ 34 $ — CAISO CRR auction prices $(2.86) - $45.78 $ 0.29 December 31, 2022 67 4 CAISO CRR auction prices (7.91) - 3,856.67 1.64
Long-term debt fair value	September 30, 2023 December 31, 2022 Carrying Fair Carrying Fair (in millions) Value 1 Value 2 Value 1 Value 2 Edison International $ 32,471 $ 28,700 $ 29,639 $ 26,824 SCE 28,398 24,688 26,258 23,469 1 Carrying value is net of debt issuance costs. 2 The fair value of long-term debt is classified as Level 2.

Debt and Credit Agreements (Tab

Debt and Credit Agreements (Tables)	9 Months Ended
Debt and Credit Agreements (Tables)	Sep. 30, 2023
Debt and Credit Agreements
Schedule of First and Refunding Mortgage Bonds	Description Month of Issuance Rate Maturity Date Amount Series 2023A 1 March 2023 5.30% 2028 $ 750 Series 2023B 2 March 2023 5.70% 2053 450 Series 2023C 1 May 2023 4.90% 2026 400 Series 2023D 2 May 2023 5.88% 2053 700 Series 2023E 1 September 2023 5.65% 2028 550 1 The proceeds were used to fund the payment of wildfire claims and related expenses above the amount of expected insurance proceeds. 2 The proceeds were used to repay commercial paper borrowings and for general corporate purposes.
Summary for Status of Credit Facilities	(in millions, except for rates) Borrower Termination Date Secured Overnight Financing Rate ("SOFR") plus (bps) Commitment Outstanding borrowings Outstanding letters of credit Amount available Edison International Parent 1, 3 May 2027 128 $ 1,500 $ 389 $ — $ 1,111 SCE 2, 3 May 2027 108 3,350 621 202 2,527 Total Edison International $ 4,850 $ 1,010 $ 202 $ 3,638 1 At September 30, 2023, Edison International Parent had $388 million outstanding commercial paper, net of discount, at a weighted-average interest rate of 5.84% . 2 At September 30, 2023, SCE had $616 million outstanding commercial paper, net of discount, at a weighted-average interest rate of 5.73% . 3 In May 2023, Edison International Parent and SCE amended their credit facilities to extend the maturity date to May 2027, with two additional one-year extension options. The aggregate maximum principal amount under the SCE and Edison International Parent revolving credit facilities may be increased up to $4.0 billion and $2.0 billion, respectively, provided that additional lender commitments are obtained.

Derivative Instruments (Tables)

Derivative Instruments (Tables)	9 Months Ended
Derivative Instruments (Tables)	Sep. 30, 2023
Derivative Instruments
Schedule of derivative assets financial position	September 30, 2023 Derivative Assets Derivative Liabilities (in millions) Short-Term 1 Long-Term 2 Short-Term Commodity derivative contracts Gross amounts recognized $ 33 $ 6 $ 45 Gross amounts offset in the consolidated balance sheets (5) — (5) Cash collateral received — — (40) Net amounts presented in the consolidated balance sheets $ 28 $ 6 $ — December 31, 2022 Derivative Assets Derivative Liabilities (in millions) Short-Term 1 Short-Term 3 Commodity derivative contracts Gross amounts recognized $ 459 $ 120 Gross amounts offset in the consolidated balance sheets (119) (119) Cash collateral received (99) — Net amounts presented in the consolidated balance sheets $ 241 $ 1 1 Included in "Other current assets" on SCE's consolidated balance sheets. 2 Included in "Other long-term assets" on SCE's consolidated balance sheets. 3 Included in "Other current liabilities" on SCE's consolidated balance sheets.
Schedule of gains/(losses) of SCE's economic hedging activity	Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 Realized $ (57) $ 69 $ 52 $ 179 Unrealized 34 36 (344) 1
Schedule of notional volumes of derivatives	Unit of Economic Hedges Commodity Measure September 30, 2023 December 31, 2022 Electricity options, swaps and forwards Gigawatt hours 2,299 1,022 Natural gas options, swaps and forwards Billion cubic feet 34 42 Congestion revenue rights Gigawatt hours 30,770 44,028

Revenue (Tables)

Revenue (Tables)	9 Months Ended
Revenue (Tables)	Sep. 30, 2023
Revenue
Summary of Revenue	Three months ended September 30, 2023 Three months ended September 30, 2022 Cost- Cost- Earning Recovery Total Earning Recovery Total (in millions) Activities Activities Consolidated Activities Activities Consolidated Revenue from contracts with customers 1 $ 2,362 $ 3,479 $ 5,841 $ 2,350 $ 3,603 $ 5,953 Alternative revenue programs and other operating revenue 2 25 (1,179) (1,154) 100 (836) (736) Total operating revenue $ 2,387 $ 2,300 $ 4,687 $ 2,450 $ 2,767 $ 5,217 Nine months ended September 30, 2023 Nine months ended September 30, 2022 Cost- Cost- Earning Recovery Total Earning Recovery Total (in millions) Activities Activities Consolidated Activities Activities Consolidated Revenues from contracts with customers 1 $ 6,481 $ 6,685 $ 13,166 $ 6,313 $ 7,000 $ 13,313 Alternative revenue programs and other operating revenue 2 306 (886) (580) 568 (707) (139) Total operating revenue $ 6,787 $ 5,799 $ 12,586 $ 6,881 $ 6,293 $ 13,174 1 At September 30, 2023 and December 31, 2022, SCE's receivables related to contracts from customers were $3.1 billion and $2.3 billion, respectively, which include accrued unbilled revenue of $929 million and $638 million, respectively. 2 Includes differences between revenues from contracts with customers and authorized levels for certain CPUC and FERC revenues.

Income Taxes (Tables)

Income Taxes (Tables)	9 Months Ended
Income Taxes (Tables)	Sep. 30, 2023
Income Taxes
Summary of reconciliation of income tax expense	The table below provides a reconciliation of income tax expense computed at the federal statutory income tax rate to the income tax provision: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Edison International: Income (loss) from operations before income taxes $ 189 $ (261) $ 1,027 $ 119 Provision for income tax at federal statutory rate of 21% 40 (55) 216 25 (Decrease) increase in income tax from: State tax, net of federal benefit (16) (58) (16) (79) Property-related (47) (79) (152) (172) Other — 5 (7) (9) Total income tax (benefit) expense $ (23) $ (187) $ 41 $ (235) Effective tax rate (12.2) % (71.6) % 4.0 % (197.5) % SCE: Income (loss) from operations before income taxes $ 268 $ (230) $ 1,213 $ 252 Provision for income tax at federal statutory rate of 21% 56 (48) 255 53 (Decrease) increase in income tax from: State tax, net of federal benefit (11) (53) — (66) Property-related (47) (79) (152) (172) Other 1 3 (7) (10) Total income tax (benefit) expense $ (1) $ (177) $ 96 $ (195) Effective tax rate (0.4) % (77.0) % 7.9 % (77.4) %

Compensation and Benefit Plans

Compensation and Benefit Plans (Tables)	9 Months Ended
Compensation and Benefit Plans (Tables)	Sep. 30, 2023
Pension Plans
Pension and Other Postretirement Benefits
Summary of expense components for plans	Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 Edison International: Service cost $ 25 $ 30 $ 75 $ 90 Non-service cost (benefit) Interest cost 45 27 135 81 Expected return on plan assets (54) (57) (162) (171) Settlement costs — — — 3 Amortization of net loss 1 — 1 2 3 Regulatory adjustment (12) 2 (36) 6 Total non-service benefit 2 $ (21) $ (27) $ (61) $ (78) Total expense $ 4 $ 3 $ 14 $ 12 SCE: Service cost $ 24 $ 29 $ 72 $ 87 Non-service cost (benefit) Interest cost 42 25 126 75 Expected return on plan assets (51) (54) (153) (162) Settlement costs — — — 3 Amortization of net loss 1 — 1 — 3 Regulatory adjustment (12) 2 (36) 6 Total non-service benefit 2 $ (21) $ (26) $ (63) $ (75) Total expense $ 3 $ 3 $ 9 $ 12 1 Represents the amount of net loss reclassified from other comprehensive loss. 2 Included in "Other Income" on Edison International's and SCE’s consolidated statements of income.
Postretirement Benefits Other Than Pensions
Pension and Other Postretirement Benefits
Summary of expense components for plans	Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 Service cost $ 5 $ 8 $ 15 $ 24 Non-service cost (benefit) Interest cost 18 14 54 42 Expected return on plan assets (27) (24) (81) (72) Amortization of net gain (12) (12) (36) (36) Regulatory adjustment 16 14 48 42 Total non-service benefit 1 $ (5) $ (8) $ (15) $ (24) Total expense $ — $ — $ — $ — 1 Included in "Other income" on Edison International ' s and SCE ' s consolidated statements of income .

Investments (Tables)

Investments (Tables)	9 Months Ended
Investments (Tables)	Sep. 30, 2023
Investments
Summary of amortized cost and fair value of the trust investments	Amortized Costs Fair Values Longest September 30, December 31, September 30, December 31, (in millions) Maturity Dates 2023 2022 2023 2022 Municipal bonds 2061 $ 632 $ 672 $ 682 $ 754 Government and agency securities 2073 1,146 1,025 1,210 1,091 Corporate bonds 2070 350 351 376 377 Short-term investments and receivables/payables 1 One-year 115 110 125 116 Total debt securities and other $ 2,243 $ 2,158 2,393 2,338 Equity securities 1,550 1,610 Total $ 3,943 $ 3,948 1 As of December 31, 2022, short-term investments included $41 million of repurchase agreement payable by financial institutions which earned interest, was 97% secured by U.S. Treasury securities and matured on January 3, 2023.
Summary of gains and losses	Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Gross realized gains $ 48 $ 22 $ 243 $ 111 Gross realized losses (38) (35) (69) (96) Net unrealized (losses)/gains for equity securities (81) (83) (17) (515)

Regulatory Assets and Liabili_2

Regulatory Assets and Liabilities (Tables)	9 Months Ended
Regulatory Assets and Liabilities (Tables)	Sep. 30, 2023
Regulatory Assets and Liabilities
Regulatory assets	September 30, December 31, (in millions) 2023 2022 Current: Regulatory balancing and memorandum accounts $ 2,357 $ 2,400 Power contracts — 71 Other 51 26 Total current 2,408 2,497 Long-term: Deferred income taxes 5,456 5,178 Unamortized investments, net of accumulated amortization 109 113 Unamortized loss on reacquired debt 100 109 Regulatory balancing and memorandum accounts 1,192 1,589 Environmental remediation 233 241 Recovery assets 1,571 834 Other 113 117 Total long-term 8,774 8,181 Total regulatory assets $ 11,182 $ 10,678
Regulatory liabilities	September 30, December 31, (in millions) 2023 2022 Current: Regulatory balancing and memorandum accounts $ 685 $ 584 Energy derivatives — 338 Other 32 42 Total current 717 964 Long-term: Costs of removal 2,673 2,589 Deferred income taxes 2,227 2,250 Recoveries in excess of ARO liabilities 1,285 1,231 Regulatory balancing and memorandum accounts 1,377 1,116 Pension and other postretirement benefits 984 1,007 Other 24 18 Total long-term 8,570 8,211 Total regulatory liabilities $ 9,287 $ 9,175
Schedule of Regulatory Balancing Accounts	September 30, December 31, (in millions) 2023 2022 Asset (liability) Energy resource recovery account $ (141) $ 1,580 Portfolio allocation balancing account 929 (73) New system generation balancing account 237 (63) Public purpose programs and energy efficiency programs (1,805) (1,577) Base revenue requirement balancing account 1,006 1,108 GRC wildfire mitigation balancing accounts 174 67 Residential uncollectibles balancing account 51 — Greenhouse gas auction revenue and low carbon fuel standard revenue (393) (289) FERC balancing accounts (208) (123) Wildfire and drought restoration accounts 432 352 Wildfire-related memorandum accounts 985 1,168 Risk management balancing account 1 (74) — COVID-19-related memorandum accounts 66 67 Customer service re-platform memorandum account 96 64 Tax accounting memorandum account and pole loading balancing account 61 90 Excess bond and power charge balancing account 11 (56) Other 60 (26) Asset $ 1,487 $ 2,289 1 The risk management balancing account is used to support the administration of the customer-funded self-insurance program. See "Note 12 — Contingencies — Southern California Wildfires and Mudslides — Wildfire Insurance Coverage" for more details .

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
Commitments and Contingencies (Tables)	Sep. 30, 2023
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Schedule of Contingency Accruals and Changes	(in millions) Balance at December 31, 2022 1 $ 1,119 Increase in accrued estimated losses 565 Amounts paid (747) Balance at September 30, 2023 2 $ 937 1 At December 31, 2022, $121 million in current liabilities, wildfire-related claims, on Edison International's and SCE's consolidated balance sheets consisted of $65 million of settlements executed and $56 million of short term payables under the SED Agreement in connection with the 2017/2018 Wildfire/Mudslide Events. At December 31, 2022, the $1,687 million included in deferred credits and other liabilities, wildfire-related claims, on Edison International's and SCE's consolidated balance sheets included Edison International's and SCE's best estimate of expected losses for remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events of $934 million, $64 million of long term payables under the SED Agreement and other wildfire-related claims estimates of $689 million. 2 At September 30, 2023, $150 million in current liabilities, wildfire-related claims, on Edison International's and SCE's consolidated balance sheets consisted of $144 million of settlements executed and $6 million of short term payables under the SED Agreement in connection with the 2017/2018 Wildfire/Mudslide Events. At September 30, 2023, the $1,583 million included in deferred credits and other liabilities, wildfire-related claims, on Edison International's and SCE's consolidated balance sheets included Edison International's and SCE's best estimate of expected losses for remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events of $728 million, $59 million of long term payables under the SED Agreement and other wildfire-related claims estimates of $796 million. For the three and nine months ended September 30, 2023 and 2022, Edison International's and SCE's consolidated statements of income included charges for the estimated losses, net of expected recoveries from insurance and FERC customers, related to the 2017/2018 Wildfire/Mudslide Events as follows: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Charge for wildfire-related claims $ 475 $ 880 $ 565 $ 1,296 Expected revenue from FERC customers (27) (50) (33) (76) Total pre-tax charge 448 830 532 1,220 Income tax benefit (125) (232) (148) (341) Total after-tax charge $ 323 $ 598 $ 384 $ 879
Post-2018 Wildfires
Commitments and Contingencies
Schedule of Contingency Accruals and Changes	The following table presents changes in estimated losses since December 31, 2022: (in millions) Balance at December 31, 2022 $ 682 Increase in accrued estimated losses 124 Amounts paid (16) Balance at September 30, 2023 $ 790 For the three and nine months ended September 30, 2023 and 2022, Edison International's and SCE's consolidated statements of income included charges for the estimated losses, net of expected recoveries from insurance and customers, related to the Post-2018 Wildfires as follows, respectively: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Edison International: Charge for wildfire-related claims 1 $ 118 $ 415 $ 124 $ 565 Expected insurance recoveries 2 (111) (244) (111) (383) Expected revenue from CPUC and FERC customers — (162) — (162) Total pre-tax charge 7 9 13 20 Income tax benefit (2) (3) (4) (6) Total after-tax charge $ 5 $ 6 $ 9 $ 14 Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 SCE: Charge for wildfire-related claims 1 $ 118 $ 415 $ 124 $ 565 Expected insurance recoveries (114) (253) (114) (392) Expected revenue from CPUC and FERC customers — (162) — (162) Total pre-tax charge 4 — 10 11 Income tax benefit (1) — (3) (3) Total after-tax charge $ 3 $ — $ 7 $ 8 1 Includes estimated co-insurance payments recorded as operations and maintenance expense. 2 Edison Insurance Services, Inc. ("EIS"), a wholly-owned subsidiary of Edison International, paid $3 million insurance for the three and nine months ended September 30, 2023 and $9 million insurance for the three and nine months ended September 30, 2022. These insurance payments were included in the insurance recovery of SCE but were excluded from that of Edison International.

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
Accumulated Other Comprehensive Loss (Tables)	Sep. 30, 2023
Accumulated Other Comprehensive Loss
Components of Accumulated Other Comprehensive Loss	Edison International's accumulated other comprehensive loss, net of tax, consist of: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Beginning balance $ (8) $ (48) $ (11) $ (54) Pension and PBOP: Reclassified from accumulated other comprehensive loss 1 — 1 1 7 Foreign currency translation adjustments — — 2 — Change — 1 3 7 Ending Balance $ (8) $ (47) $ (8) $ (47) 1 These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 9 for additional information . SCE's accumulated other comprehensive loss, net of tax, consists of: SCE's accumulated other comprehensive loss, net of tax, consists of: Three months ended September 30, Nine months ended September 30, (in millions) 2023 2022 2023 2022 Beginning balance $ (8) $ (28) $ (8) $ (32) Pension and PBOP – net loss: Reclassified from accumulated other comprehensive loss 1 — 1 — 5 Change — 1 — 5 Ending Balance $ (8) $ (27) $ (8) $ (27) 1 These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 9 for additional information .

Other Income (Tables)

Other Income (Tables)	9 Months Ended
Other Income (Tables)	Sep. 30, 2023
Other Income
Summary of Other Income	Other income net of expenses is as follows: Three months ended Nine months ended September 30, September 30, (in millions) 2023 2022 2023 2022 SCE other income (expense): Equity allowance for funds used during construction $ 41 $ 30 $ 116 $ 91 Increase in cash surrender value of life insurance policies and life insurance benefits 9 9 29 30 Interest income 68 19 194 36 Net periodic benefit income – non-service components 26 34 78 99 Civic, political and related activities and donations (12) (11) (28) (29) Other (4) (10) (14) (17) Total SCE other income 128 71 375 210 Other income (expense) of Edison International Parent and Other: Net gains (losses) on equity securities — 8 (3) 2 Other 2 6 5 7 Total Edison International other income $ 130 $ 85 $ 377 $ 219

Supplemental Cash Flows Infor_2

Supplemental Cash Flows Information (Tables)	9 Months Ended
Supplemental Cash Flows Information (Tables)	Sep. 30, 2023
Supplemental Cash Flows Information
Summary of Supplemental Cash Flows Information	Supplemental cash flows information is: Edison International SCE Nine months ended September 30, (in millions) 2023 2022 2023 2022 Cash payments (receipts): Interest, net of amounts capitalized $ 1,034 $ 788 $ 888 $ 701 Income taxes, net — (49) — (49) Non-cash financing and investing activities: Dividends declared but not paid: Common stock 283 267 350 325 Preference stock of SCE 9 6 9 6

Related-Party Transactions (Tab

Related-Party Transactions (Tables)	9 Months Ended
Related-Party Transactions (Tables)	Sep. 30, 2023
Related Party Transactions
Schedule of Related-Party Transactions	September 30, December 31, (in millions) 2023 2022 Prepaid insurance 1 $ — $ 106 Long-term insurance receivable due from affiliate 431 334 1 Reflected in "Prepaid expenses" on SCE's consolidated balance sheets.

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Organization) (Details)	9 Months Ended
	Sep. 30, 2023 mi²
SCE
Organization
Supply of electricity area covered (in square miles)	50,000

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Cash) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Restricted Cash and Cash Equivalents Items [Line Items]
Money market funds	$ 120	$ 784
Cash and cash equivalents	446	914
Short-term restricted cash	$ 3	$ 3
Restricted Cash, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Total cash, cash equivalents, and restricted cash	$ 449	$ 917	$ 233	$ 394
SCE
Restricted Cash and Cash Equivalents Items [Line Items]
Money market funds		647
Cash and cash equivalents	317	$ 766
Short-term restricted cash	$ 1
Restricted Cash, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Total cash, cash equivalents, and restricted cash	$ 318	$ 766	$ 91	$ 280

Summary of Significant Accoun_6

Summary of Significant Accounting Policies (Allowance) (Details) - SCE - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 343	$ 381	$ 354	$ 309
Accounts Receivable, Regulatory Assets, Credit Loss Expense (Reversal)	17	57	44	115
Current period provision for uncollectible accounts	30	71	71	171
Write-offs, net of recoveries	(28)	(26)	(80)	(54)
Ending balance	345	426	345	426
Allowance for long-term uncollectible accounts	5		5		$ 7
Customers
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	326	364	334	293
Current period provision for uncollectible accounts	25	69	65	160
Write-offs, net of recoveries	(22)	(24)	(70)	(44)
Ending balance	329	409	329	409
All others
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	17	17	20	16
Current period provision for uncollectible accounts	5	2	6	11
Write-offs, net of recoveries	(6)	(2)	(10)	(10)
Ending balance	$ 16	$ 17	$ 16	$ 17

Summary of Significant Accoun_7

Summary of Significant Accounting Policies (EPS) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Basic earnings (loss) per share:
Net income (loss)	$ 155	$ (128)	$ 819	$ 197
Weighted average common shares outstanding (in shares)	383,000,000	382,000,000	383,000,000	381,000,000
Basic earnings (loss) per share (in dollars per share)	$ 0.40	$ (0.33)	$ 2.14	$ 0.52
Diluted earnings (loss) per share:
Net income (loss)	$ 155	$ (128)	$ 819	$ 197
Income impact of assumed conversions			1
Net income (loss) available to common shareholders and assumed conversions	$ 155	$ (128)	$ 820	$ 197
Weighted average common shares outstanding (in shares)	383,000,000	382,000,000	383,000,000	381,000,000
Incremental shares from assumed conversions (in shares)	2,000,000	1,000,000	2,000,000	1,000,000
Adjusted weighted average shares - diluted (in shares)	385,000,000	383,000,000	385,000,000	382,000,000
Diluted earnings (loss) per share (in dollars per share)	$ 0.40	$ (0.33)	$ 2.13	$ 0.52
Stock Compensation Plan
Diluted earnings (loss) per share:
Antidilutive awards excluded from earnings per share (in shares)	3,231,385	5,089,280	3,230,603	5,204,369

Summary of Significant Accoun_8

Summary of Significant Accounting Policies (Leases) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	$ 1,292	$ 1,442
Operating lease liabilities	$ 1,113	$ 936
SCE
Lessee, Lease, Description [Line Items]
Operating lease term	15 years
Operating lease liabilities	$ 226

Summary of Significant Accoun_9

Summary of Significant Accounting Policies (Disposal) (Details) - Edison Carrier Solutions $ in Millions	3 Months Ended
	Jun. 30, 2023 USD ($)
Discontinue
Materials and supplies impairment	$ 13
Construction work in progress write down	$ 4

Summary of Significant Accou_10

Summary of Significant Accounting Policies (Subsequent Event) (Details) - SCE - USD ($) $ in Millions	Oct. 31, 2023	Sep. 30, 2023
Leases
Operating lease term		15 years
Power Purchase Agreement
Leases
2027	$ 48
Thereafter	$ 3,000

Consolidated Statements of Ch_3

Consolidated Statements of Changes in Equity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Increase (decrease) in Stockholders' Equity
Beginning balance	$ 17,694	$ 17,549	$ 17,522	$ 17,675	$ 17,632	$ 17,789	$ 17,522	$ 17,789
Net income (loss)	212	409	365	(74)	292	136	986	354
Other comprehensive income		1	2	1	4	2	3	7
Common stock issued, net of issuance cost	19	35	15	28	27	12
Common stock dividends declared	(283)	(283)	(282)	(267)	(267)	(267)
Preferred stock dividend declared	(53)		(52)	(53)		(21)
Dividends to noncontrolling interests	(30)	(29)	(29)	(27)	(25)	(26)
Noncash stock-based compensation	12	12	8	10	12	7
Ending Balance	$ 17,571	$ 17,694	$ 17,549	$ 17,293	$ 17,675	$ 17,632	17,571	17,293
Dividends declared per common share (in dollars per share)	$ 0.7375	$ 0.7375	$ 0.7375	$ 0.7000	$ 0.7000	$ 0.7000
Series A
Increase (decrease) in Stockholders' Equity
Preferred stock dividends (in dollars per share)	26.875		26.875	26.875		26.875
Series B
Increase (decrease) in Stockholders' Equity
Preferred stock dividends (in dollars per share)	$ 25		$ 25	$ 25		$ 17.08333
Preferred stock
Increase (decrease) in Stockholders' Equity
Beginning balance	$ 1,978	$ 1,978	$ 1,978	$ 1,977	$ 1,977	$ 1,977	1,978	1,977
Ending Balance	1,978	1,978	1,978	1,977	1,977	1,977	1,978	1,977
Common Stock, Including APIC
Increase (decrease) in Stockholders' Equity
Beginning balance	6,270	6,223	6,200	6,129	6,090	6,071	6,200	6,071
Common stock issued, net of issuance cost	19	35	15	28	27	12
Noncash stock-based compensation	12	12	8	10	12	7
Ending Balance	6,301	6,270	6,223	6,167	6,129	6,090	6,301	6,167
Accumulated Other Comprehensive Loss
Increase (decrease) in Stockholders' Equity
Beginning balance	(8)	(9)	(11)	(48)	(52)	(54)	(11)	(54)
Other comprehensive income		1	2	1	4	2
Ending Balance	(8)	(8)	(9)	(47)	(48)	(52)	(8)	(47)
Retained Earnings
Increase (decrease) in Stockholders' Equity
Beginning balance	7,553	7,456	7,454	7,716	7,716	7,894	7,454	7,894
Net income (loss)	182	380	336	(101)	267	110
Common stock dividends declared	(283)	(283)	(282)	(267)	(267)	(267)
Preferred stock dividend declared	(53)		(52)	(53)		(21)
Ending Balance	7,399	7,553	7,456	7,295	7,716	7,716	7,399	7,295
Equity Attributable to Common Shareholders
Increase (decrease) in Stockholders' Equity
Beginning balance	15,793	15,648	15,621	15,774	15,731	15,888	15,621	15,888
Net income (loss)	182	380	336	(101)	267	110
Other comprehensive income		1	2	1	4	2
Common stock issued, net of issuance cost	19	35	15	28	27	12
Common stock dividends declared	(283)	(283)	(282)	(267)	(267)	(267)
Preferred stock dividend declared	(53)		(52)	(53)		(21)
Noncash stock-based compensation	12	12	8	10	12	7
Ending Balance	15,670	15,793	15,648	15,392	15,774	15,731	15,670	15,392
Noncontrolling Interest
Increase (decrease) in Stockholders' Equity
Beginning balance	1,901	1,901	1,901	1,901	1,901	1,901	1,901	1,901
Net income (loss)	30	29	29	27	25	26
Dividends to noncontrolling interests	(30)	(29)	(29)	(27)	(25)	(26)
Ending Balance	$ 1,901	$ 1,901	$ 1,901	$ 1,901	$ 1,901	$ 1,901	1,901	1,901
Noncontrolling Interest \| Minimum
Increase (decrease) in Stockholders' Equity
Preferred stock dividends (in dollars per share)	$ 25.1276	$ 24.273	$ 22.281	$ 17.8564	$ 14.017	$ 11.160
Noncontrolling Interest \| Maximum
Increase (decrease) in Stockholders' Equity
Preferred stock dividends (in dollars per share)	$ 35.937	$ 35.937	$ 35.937	$ 35.937	$ 35.937	$ 35.937
SCE
Increase (decrease) in Stockholders' Equity
Beginning balance	$ 20,881	$ 20,807	$ 20,789	$ 20,337	$ 19,652	$ 19,835	20,789	19,835
Net income (loss)	269	449	399	(53)	327	173	1,117	447
Other comprehensive income				1	3	1		5
Capital contribution from Edison International Parent					700
Common stock dividends declared	(350)	(350)	(350)	(325)	(325)	(325)
Preferred stock dividend declared	(30)	(29)	(29)	(27)	(25)	(26)
Stock-based compensation	(1)	(3)	(8)	(2)	(1)	(9)
Noncash stock-based compensation	6	7	6	5	6	3
Ending Balance	$ 20,775	$ 20,881	$ 20,807	$ 19,936	$ 20,337	$ 19,652	20,775	19,936
Dividends declared per common share (in dollars per share)	$ 0.8048	$ 0.8048	$ 0.8048	$ 0.7473	$ 0.7473	$ 0.7473
SCE \| Minimum
Increase (decrease) in Stockholders' Equity
Preferred stock dividends (in dollars per share)	25.1276	24.273	22.281	17.8564	14.017	11.160
SCE \| Maximum
Increase (decrease) in Stockholders' Equity
Preferred stock dividends (in dollars per share)	$ 35.937	$ 35.937	$ 35.937	$ 35.937	$ 35.937	$ 35.937
SCE \| Preferred stock
Increase (decrease) in Stockholders' Equity
Beginning balance	$ 1,945	$ 1,945	$ 1,945	$ 1,945	$ 1,945	$ 1,945	1,945	1,945
Ending Balance	1,945	1,945	1,945	1,945	1,945	1,945	1,945	1,945
SCE \| Common stock
Increase (decrease) in Stockholders' Equity
Beginning balance	2,168	2,168	2,168	2,168	2,168	2,168	2,168	2,168
Ending Balance	2,168	2,168	2,168	2,168	2,168	2,168	2,168	2,168
SCE \| Additional Paid-in Capital
Increase (decrease) in Stockholders' Equity
Beginning balance	8,442	8,438	8,441	7,732	7,028	7,033	8,441	7,033
Capital contribution from Edison International Parent					700
Stock-based compensation	(1)	(3)	(8)	(2)	(1)	(9)
Noncash stock-based compensation	6	7	5	5	5	4
Ending Balance	8,447	8,442	8,438	7,735	7,732	7,028	8,447	7,735
SCE \| Accumulated Other Comprehensive Loss
Increase (decrease) in Stockholders' Equity
Beginning balance	(8)	(8)	(8)	(28)	(31)	(32)	(8)	(32)
Other comprehensive income				1	3	1
Ending Balance	(8)	(8)	(8)	(27)	(28)	(31)	(8)	(27)
SCE \| Retained Earnings
Increase (decrease) in Stockholders' Equity
Beginning balance	8,334	8,264	8,243	8,520	8,542	8,721	8,243	8,721
Net income (loss)	269	449	399	(53)	327	173
Common stock dividends declared	(350)	(350)	(350)	(325)	(325)	(325)
Preferred stock dividend declared	(30)	(29)	(29)	(27)	(25)	(26)
Noncash stock-based compensation			1		1	(1)
Ending Balance	$ 8,223	$ 8,334	$ 8,264	$ 8,115	$ 8,520	$ 8,542	$ 8,223	$ 8,115

Variable Interest Entities (Rec

Variable Interest Entities (Recovery Funding) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Variable Interest Entity
Other current assets	$ 278	$ 397
Regulatory assets: non-current	8,774	8,181
Regulatory liabilities: current	717	964
Current portion of long-term debt	2,939	2,614
Other current liabilities	1,754	1,601
Long-term debt	29,532	27,025
SCE Recovery Funding LLC
Variable Interest Entity
Other current assets	78	45
Regulatory assets: non-current	1,571	834
Regulatory liabilities: current	22	33
Current portion of long-term debt	54	29
Other current liabilities	26	4
Long-term debt	1,539	809
SCE
Variable Interest Entity
Other current assets	269	384
Regulatory assets: non-current	8,774	8,181
Regulatory liabilities: current	717	964
Current portion of long-term debt	2,939	2,214
Other current liabilities	1,691	1,578
Long-term debt	25,459	24,044
SCE \| SCE Recovery Funding LLC
Variable Interest Entity
Debt carrying amount	1,600
Regulatory assets: non-current	1,571	834
Long-term debt	$ 1,539	$ 809

Variable Interest Entities (Tru

Variable Interest Entities (Trusts) (Details) - SCE - USD ($)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2022
Variable Interest Entity
Common stock	$ 2,168,000,000		$ 2,168,000,000							$ 2,168,000,000
Trust Securities [Member]
Variable Interest Entity
Liquidation value (in dollars per share)					$ 2,500
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity
Liquidation value (in dollars per share)					$ 25
Common stock	10,000		10,000		$ 10,000					10,000
Power Purchase Agreement
Variable Interest Entity
Amounts paid to VIEs	191,000,000	$ 252,000,000	476,000,000	$ 460,000,000
Trust II
Variable Interest Entity
Liquidation preference									$ 400,000,000
Trust II \| Trust Securities [Member]
Variable Interest Entity
Liquidation preference	220,000,000		220,000,000							220,000,000
Trust II \| 5.10% Series G Preferred Stock
Variable Interest Entity
Security dividend rate, (as a percent)									5.10%
Liquidation preference	220,000,000		220,000,000						$ 400,000,000
Trust III
Variable Interest Entity
Liquidation preference								$ 275,000,000
Trust III \| Trust Securities [Member]
Variable Interest Entity
Liquidation preference	275,000,000		275,000,000							275,000,000
Trust III \| 5.75% Series H Preferred Stock
Variable Interest Entity
Security dividend rate, (as a percent)								5.75%
Liquidation preference	275,000,000		275,000,000					$ 275,000,000		275,000,000
Trust IV
Variable Interest Entity
Liquidation preference							$ 325,000,000
Trust IV \| Trust Securities [Member]
Variable Interest Entity
Liquidation preference	325,000,000		325,000,000							325,000,000
Trust IV \| 5.375% Series J Preferred Stock
Variable Interest Entity
Security dividend rate, (as a percent)							5.375%
Liquidation preference	325,000,000		325,000,000				$ 325,000,000			325,000,000
Trust V
Variable Interest Entity
Liquidation preference						$ 300,000,000
Trust V \| Trust Securities [Member]
Variable Interest Entity
Liquidation preference	300,000,000		300,000,000							300,000,000
Trust V \| 5.45% Series K Preferred Stock
Variable Interest Entity
Security dividend rate, (as a percent)						5.45%
Liquidation preference	300,000,000		300,000,000			$ 300,000,000				300,000,000
Trust VI
Variable Interest Entity
Liquidation preference					$ 475,000,000
Trust VI \| Trust Securities [Member]
Variable Interest Entity
Liquidation preference	475,000,000		475,000,000							475,000,000
Trust VI \| 5.00% Series L Preferred Stock
Variable Interest Entity
Security dividend rate, (as a percent)					5%
Liquidation preference	$ 475,000,000		$ 475,000,000		$ 475,000,000					$ 475,000,000

Variable Interest Entities (Inc

Variable Interest Entities (Income Statement) (Details) - SCE - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Trust II
Variable Interest Entity
Dividend income	$ 2	$ 2	$ 8	$ 8
Dividend distributions	2	2	8	8
Trust III
Variable Interest Entity
Dividend income	4	4	12	12
Dividend distributions	4	4	12	12
Trust IV
Variable Interest Entity
Dividend income	4	4	13	13
Dividend distributions	4	4	13	13
Trust V
Variable Interest Entity
Dividend income	4	4	12	12
Dividend distributions	4	4	12	12
Trust VI
Variable Interest Entity
Dividend income	6	6	18	18
Dividend distributions	$ 6	$ 6	$ 18	$ 18

Fair Value Measurements (Hierar

Fair Value Measurements (Hierarchy) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Assets at fair value
Nuclear decommissioning trusts	$ 3,943	$ 3,948
SCE
Assets at fair value
Nuclear decommissioning trusts	$ 3,943	$ 3,948
Liabilities at fair value
Percentage of equity investments located in the United States (as a percent)	75%	74%
Collateralized mortgage obligations and other asset backed securities	$ 87	$ 49
Receivable (payables), net, related to investments	(90)	(85)
SCE \| Fair Value, Measurements, Recurring
Assets at fair value
Netting and Collateral	(5)	(218)
Derivative contracts, net	34	241
Money market funds and other	22	669
Nuclear decommissioning trusts	4,033	4,033
Total assets	4,089	4,943
Liabilities at fair value
Netting and Collateral	(45)	(119)
Derivative contracts, net	0	1
Total liabilities	0	1
Net assets	4,089	4,942
Netting and Collateral, Total	40	(99)
SCE \| Fair Value, Measurements, Recurring \| Level 1
Assets at fair value
Derivative contracts	0
Money market funds and other	0	647
Nuclear decommissioning trusts	2,665	2,688
Total assets	2,665	3,335
Liabilities at fair value
Derivative contracts	0
Total liabilities	0
Net assets	2,665	3,335
SCE \| Fair Value, Measurements, Recurring \| Level 2
Assets at fair value
Derivative contracts	5	392
Money market funds and other	22	22
Nuclear decommissioning trusts	1,368	1,345
Total assets	1,395	1,759
Liabilities at fair value
Derivative contracts	45	116
Total liabilities	45	116
Net assets	1,350	1,643
SCE \| Fair Value, Measurements, Recurring \| Level 3
Assets at fair value
Derivative contracts	34	67
Money market funds and other	0
Nuclear decommissioning trusts	0
Total assets	34	67
Liabilities at fair value
Derivative contracts	0	4
Total liabilities	0	4
Net assets	34	63
SCE \| Fair Value, Measurements, Recurring \| Equity securities
Assets at fair value
Nuclear decommissioning trusts	1,550	1,610
SCE \| Fair Value, Measurements, Recurring \| Equity securities \| Level 1
Assets at fair value
Nuclear decommissioning trusts	1,550	1,610
SCE \| Fair Value, Measurements, Recurring \| Equity securities \| Level 2
Assets at fair value
Nuclear decommissioning trusts	0
SCE \| Fair Value, Measurements, Recurring \| Equity securities \| Level 3
Assets at fair value
Nuclear decommissioning trusts	0
SCE \| Fair Value, Measurements, Recurring \| Fixed Income
Assets at fair value
Nuclear decommissioning trusts	2,266	2,222
SCE \| Fair Value, Measurements, Recurring \| Fixed Income \| Level 1
Assets at fair value
Nuclear decommissioning trusts	927	941
SCE \| Fair Value, Measurements, Recurring \| Fixed Income \| Level 2
Assets at fair value
Nuclear decommissioning trusts	1,339	1,281
SCE \| Fair Value, Measurements, Recurring \| Fixed Income \| Level 3
Assets at fair value
Nuclear decommissioning trusts	0
SCE \| Fair Value, Measurements, Recurring \| Short-term investments, primarily cash equivalents
Assets at fair value
Nuclear decommissioning trusts	217	201
SCE \| Fair Value, Measurements, Recurring \| Short-term investments, primarily cash equivalents \| Level 1
Assets at fair value
Nuclear decommissioning trusts	188	137
SCE \| Fair Value, Measurements, Recurring \| Short-term investments, primarily cash equivalents \| Level 2
Assets at fair value
Nuclear decommissioning trusts	29	$ 64
SCE \| Fair Value, Measurements, Recurring \| Short-term investments, primarily cash equivalents \| Level 3
Assets at fair value
Nuclear decommissioning trusts	$ 0

Fair Value Measurements (Level

Fair Value Measurements (Level 3) (Details) - SCE - Level 3 - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Fair Value Disclosures Level 3 [Roll Forward]
Fair value of net assets at beginning of period	$ 12	$ 32	$ 63	$ 44
Sales		(1)	(1)	(7)
Settlements	(23)	(25)	(47)	(54)
Total realized/unrealized (losses)/gains	45	47	19	70
Fair value of net assets at end of period	$ 34	$ 53	$ 34	$ 53

Fair Value Measurements (Leve_2

Fair Value Measurements (Level 3 Inputs) (Details) - SCE - Level 3 - Congestion revenue rights (GWh) - Auction prices $ in Millions	Sep. 30, 2023 USD ($) $ / MWh	Dec. 31, 2022 USD ($) $ / MWh
Quantitative Information About Level 3 Measurements [Line Items]
Fair value, Level 3 assets \| $	$ 34	$ 67
Fair value, Level 3 liabilities \| $		$ 4
Minimum
Quantitative Information About Level 3 Measurements [Line Items]
Derivative Asset (Liability) Net, Measurement Input	(2.86)	(7.91)
Maximum
Quantitative Information About Level 3 Measurements [Line Items]
Derivative Asset (Liability) Net, Measurement Input	45.78	3,856.67
Weighted Average
Quantitative Information About Level 3 Measurements [Line Items]
Derivative Asset (Liability) Net, Measurement Input	0.29	1.64

Fair Value Measurements (Parent

Fair Value Measurements (Parent) (Details) - Edison International Parent and Other - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Level 1
Fair Value
Equity investments fair value		$ 5
Money market funds fair value	$ 120	137
Level 2
Fair Value
Short-term investments fair value	$ 0	2
Level 3
Fair Value
Short-term investments fair value		$ 0

Fair Value Measurements (Debt)

Fair Value Measurements (Debt) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Fair Value of Long-Term Debt Recorded at Carrying Value
Carrying Value	$ 32,471	$ 29,639
Fair Value	28,700	26,824
SCE
Fair Value of Long-Term Debt Recorded at Carrying Value
Carrying Value	28,398	26,258
Fair Value	$ 24,688	$ 23,469

Debt and Credit Agreements (Rec

Debt and Credit Agreements (Recovery and Term) (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2023
Debt
Outstanding borrowings			$ 1,010
Term loan due May 2023
Debt
Repayments of outstanding debt	$ 730
SCE \| 5.30% first and refunding mortgage bonds due 2028
Debt
Debt, face amount			$ 750
Interest rate on debt (as a percent)			5.30%
SCE \| 5.70% first and refunding mortgage bonds due 2053
Debt
Debt, face amount			$ 450
Interest rate on debt (as a percent)			5.70%
SCE \| 4.9% first and refunding mortgage bonds due 2026
Debt
Debt, face amount			$ 400
Interest rate on debt (as a percent)			4.90%
SCE \| 5.875% first and refunding mortgage bonds due 2053
Debt
Debt, face amount			$ 700
Interest rate on debt (as a percent)			5.88%
SCE \| 5.65% first and refunding mortgage bonds due 2028
Debt
Debt, face amount			$ 550
Interest rate on debt (as a percent)			5.65%
SCE \| Series-A 2023 senior secured recovery bonds
Debt
Debt, face amount	775
SCE \| Recovery Bonds, 4.697%, due 2042
Debt
Debt, face amount	$ 425
Interest rate on debt (as a percent)	4.697%
SCE \| Recovery Bonds, 5.112%, due 2049
Debt
Debt, face amount	$ 350
Interest rate on debt (as a percent)	5.112%
Edison International Parent and Other \| 8.125% Junior subordinated notes due 2053
Debt
Debt, face amount		$ 500
Interest rate on debt (as a percent)		8.125%
Variable rate on debt (as a percent)		3.864%
Edison International Parent and Other \| 5.25% Senior Notes due 2028
Debt
Debt, face amount	$ 600
Interest rate on debt (as a percent)	5.25%

Debt and Credit Agreements (Cre

Debt and Credit Agreements (Credit Facilities) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	May 31, 2023
Line of Credit Facility [Line Items]
Commitment	$ 4,850
Outstanding borrowings	1,010
Outstanding letters of credit	202
Amount available	3,638
Edison International Parent and Other \| Multi-year credit facilities
Line of Credit Facility [Line Items]
Commitment	1,500
Outstanding borrowings	389
Amount available	$ 1,111
Contingent maximum available borrowing		$ 2,000
Edison International Parent and Other \| Multi-year credit facilities \| Secured Overnight Financing Rate ("SOFR")
Line of Credit Facility [Line Items]
Variable rate on debt (as a percent)	1.28%
Edison International Parent and Other \| Multi-year credit facilities \| Commercial paper
Line of Credit Facility [Line Items]
Outstanding borrowings	$ 388
Weighted average interest rate (as a percent)	5.84%
SCE \| Multi-year credit facilities
Line of Credit Facility [Line Items]
Commitment	$ 3,350
Outstanding borrowings	621
Outstanding letters of credit	202
Amount available	$ 2,527
Contingent maximum available borrowing		$ 4,000
SCE \| Multi-year credit facilities \| Secured Overnight Financing Rate ("SOFR")
Line of Credit Facility [Line Items]
Variable rate on debt (as a percent)	1.08%
SCE \| Multi-year credit facilities \| Commercial paper
Line of Credit Facility [Line Items]
Outstanding borrowings	$ 616
Weighted average interest rate (as a percent)	5.73%

Debt and Credit Agreements (Unc

Debt and Credit Agreements (Uncommitted Letters of Credit) (Details) - USD ($) $ in Millions	Oct. 31, 2023	Sep. 30, 2023
Line of Credit Facility [Line Items]
Outstanding letters of credit		$ 202
Standby letters of credit
Line of Credit Facility [Line Items]
Outstanding letters of credit	$ 625

Derivative Instruments (Derivat

Derivative Instruments (Derivative) (Details) - SCE - Derivatives with contingent features - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Derivatives
Aggregate fair value of all derivative liabilities with credit-risk-related contingent features	$ 1	$ 1
Posted collateral	0	$ 24
Potential amount of collateral to be posted if contingencies triggered	$ 1

Derivative Instruments (Balance

Derivative Instruments (Balance Sheet) (Details) - SCE - Commodity derivative contracts - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Derivative Liabilities
Cash collateral posted for liability	$ 110
Other Current Assets
Derivative Assets
Gross amounts recognized	33	$ 459
Gross amounts offset in the consolidated balance sheets	(5)	(119)
Cash collateral posted/received	0	(99)
Net amounts presented in the consolidated balance sheets	28	241
Derivative Liabilities
Cash collateral not offset against liability	70
Other long-term assets
Derivative Assets
Gross amounts recognized	6
Net amounts presented in the consolidated balance sheets	6
Other Current Liabilities
Derivative Liabilities
Gross amounts recognized	45	120
Gross amounts offset in the consolidated balance sheets	(5)	(119)
Cash collateral posted/received	(40)
Net amounts presented in the consolidated balance sheets	$ 0	$ 1

Derivative Instruments (Hedging

Derivative Instruments (Hedging Activities) (Details) - SCE - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Realized	$ (57)	$ 69	$ 52	$ 179
Unrealized	$ 34	$ 36	$ (344)	$ 1

Derivative Instruments (Notiona

Derivative Instruments (Notional Values) (Details) - SCE	9 Months Ended	12 Months Ended
Derivative Instruments (Notional Values) (Details) - SCE	Sep. 30, 2023 Bcfe GWh	Dec. 31, 2022 GWh Bcfe
Electricity options, swaps and forwards (GWh)
Derivatives
Notional volumes of derivative instruments	2,299	1,022
Natural gas options, swaps and forwards (Bcf)
Derivatives
Notional volumes of derivative instruments \| Bcfe	34	42
Congestion revenue rights (GWh)
Derivatives
Notional volumes of derivative instruments	30,770	44,028

Revenue (Summary) (Details)

Revenue (Summary) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Revenue (Summary) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Revenue
Total operating revenue	$ 4,702	$ 5,228	$ 12,632	$ 13,204
SCE
Revenue
Revenue from contracts with customers	5,841	5,953	13,166	13,313
Alternative revenue programs and other operating revenue	(1,154)	(736)	(580)	(139)
Total operating revenue	4,687	5,217	12,586	13,174
Receivables from contracts with customers	3,100		3,100		$ 2,300
Accrued unbilled revenues	929		929		$ 638
SCE \| Earning Activities
Revenue
Revenue from contracts with customers	2,362	2,350	6,481	6,313
Alternative revenue programs and other operating revenue	25	100	306	568
Total operating revenue	2,387	2,450	6,787	6,881
SCE \| Cost- Recovery Activities
Revenue
Revenue from contracts with customers	3,479	3,603	6,685	7,000
Alternative revenue programs and other operating revenue	(1,179)	(836)	(886)	(707)
Total operating revenue	$ 2,300	$ 2,767	$ 5,799	$ 6,293

Revenue (Deferred) (Details)

Revenue (Deferred) (Details) - SCE - West of Devers $ in Millions	Sep. 30, 2023 USD ($)
Revenue
Deferred revenue balance	$ 371
Deferred revenue current	13
Deferred revenue non-current	$ 358

Income Taxes (Rate Reconciliati

Income Taxes (Rate Reconciliation) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Tax Disclosure [Line Items]
Statutory tax rate (as a percent)	21%		21%	21%	21%
Income (loss) from operations before income taxes	$ 189		$ (261)	$ 1,027	$ 119
Provision for income tax at federal statutory rate of 21%	40		(55)	216	25
(Decrease) increase in income tax from:
State tax, net of federal benefit	(16)		(58)	(16)	(79)
Property-related	(47)		(79)	(152)	(172)
Other			5	(7)	(9)
Total income tax (benefit) expense	$ (23)		$ (187)	$ 41	$ (235)
Effective tax rate	(12.20%)		(71.60%)	4%	(197.50%)
Increase (decrease) to previously recorded tax expense		$ 268
SCE
Income Tax Disclosure [Line Items]
Statutory tax rate (as a percent)	21%		21%	21%	21%
Income (loss) from operations before income taxes	$ 268		$ (230)	$ 1,213	$ 252
Provision for income tax at federal statutory rate of 21%	56		(48)	255	53
(Decrease) increase in income tax from:
State tax, net of federal benefit	(11)		(53)		(66)
Property-related	(47)		(79)	(152)	(172)
Other	1		3	(7)	(10)
Total income tax (benefit) expense	$ (1)		$ (177)	$ 96	$ (195)
Effective tax rate	(0.40%)		(77.00%)	7.90%	(77.40%)

Compensation and Benefit Plan_2

Compensation and Benefit Plans (Expenses) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Pension Plans
Pension and Other Postretirement Benefits
Service cost	$ 25	$ 30	$ 75	$ 90
Non-service cost (benefit)
Interest cost	45	27	135	81
Expected return on plan assets	(54)	(57)	(162)	(171)
Settlement costs				3
Amortization of net loss		1	2	3
Regulatory adjustment	(12)	2	(36)	6
Total non-service benefit	(21)	(27)	(61)	(78)
Total expense	4	3	14	12
Postretirement Benefits Other Than Pensions
Pension and Other Postretirement Benefits
Service cost	5	8	15	24
Non-service cost (benefit)
Interest cost	18	14	54	42
Expected return on plan assets	(27)	(24)	(81)	(72)
Amortization of net loss	(12)	(12)	(36)	(36)
Regulatory adjustment	16	14	48	42
Total non-service benefit	(5)	(8)	(15)	(24)
SCE
Non-service cost (benefit)
Total non-service benefit	(26)	(34)	(78)	(99)
SCE \| Pension Plans
Pension and Other Postretirement Benefits
Service cost	24	29	72	87
Non-service cost (benefit)
Interest cost	42	25	126	75
Expected return on plan assets	(51)	(54)	(153)	(162)
Settlement costs				3
Amortization of net loss		1		3
Regulatory adjustment	(12)	2	(36)	6
Total non-service benefit	(21)	(26)	(63)	(75)
Total expense	$ 3	$ 3	$ 9	$ 12

Investments (Trust Value) (Deta

Investments (Trust Value) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Fair Value
Fair Values	$ 3,943	$ 3,948
SCE
Fair Value
Fair Values	3,943	3,948
SCE \| Total debt securities and other
Fair Value
Amortized Costs	2,243	2,158
Fair Values	2,393	2,338
SCE \| Municipal bonds
Fair Value
Amortized Costs	632	672
Fair Values	682	754
SCE \| Government and agency securities
Fair Value
Amortized Costs	1,146	1,025
Fair Values	1,210	1,091
SCE \| Corporate bonds
Fair Value
Amortized Costs	350	351
Fair Values	376	377
SCE \| Short-term investments and receivables/payables
Fair Value
Amortized Costs	115	110
Fair Values	125	116
SCE \| Repurchase agreements
Fair Value
Fair Values		$ 41
Repurchase agreement secured by US Treasury Securities (as a percent)		97%
SCE \| Equity securities
Fair Value
Fair Values	1,550	$ 1,610
SCE \| Fair Value, Measurements, Recurring
Fair Value
Fair Values	$ 4,033	$ 4,033

Investments (Trust Info) (Detai

Investments (Trust Info) (Details) - SCE - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Investments
Cumulative unrealized holding gains, net of losses	$ 1,500	$ 1,600
Deferred income taxes related to unrealized gains	313	321
Nuclear decommissioning trusts, net of deferred tax	$ 3,600	$ 3,600

Investments (Trust gain loss) (

Investments (Trust gain loss) (Details) - SCE - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Investments
Gross realized gains	$ 48	$ 22	$ 243	$ 111
Gross realized losses	(38)	(35)	(69)	(96)
Net unrealized (losses)/gains for equity securities	$ (81)	$ (83)	$ (17)	$ (515)

Investments (Other) (Details)

Investments (Other) (Details) - Edison International Parent and Other - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Investments
Marketable securities		$ 5
Equity investments without readily determinable fair values	$ 13	12
Cumulative upward adjustments investments without readily determinable fair values	$ 9	$ 9

Regulatory Assets and Liabili_3

Regulatory Assets and Liabilities (Assets) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Regulatory Assets
Current regulatory assets	$ 2,408	$ 2,497
Regulatory assets: non-current	8,774	8,181
SCE
Regulatory Assets
Current regulatory assets	2,408	2,497
Regulatory assets: non-current	8,774	8,181
Total regulatory assets	11,182	10,678
SCE \| Regulatory balancing and memorandum accounts-Assets
Regulatory Assets
Current regulatory assets	2,357	2,400
Regulatory assets: non-current	1,192	1,589
SCE \| Power contracts
Regulatory Assets
Current regulatory assets		71
SCE \| Deferred income taxes
Regulatory Assets
Regulatory assets: non-current	5,456	5,178
SCE \| Unamortized investments, net of accumulated amortization
Regulatory Assets
Regulatory assets: non-current	109	113
SCE \| Unamortized loss on reacquired debt
Regulatory Assets
Regulatory assets: non-current	100	109
SCE \| Environmental remediation
Regulatory Assets
Regulatory assets: non-current	233	241
SCE \| Recovery assets
Regulatory Assets
Regulatory assets: non-current	1,571	834
SCE \| Other regulatory assets or liabilities
Regulatory Assets
Current regulatory assets	51	26
Regulatory assets: non-current	$ 113	$ 117

Regulatory Assets and Liabili_4

Regulatory Assets and Liabilities (Liabilities) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Regulatory Liabilities
Current regulatory liabilities	$ 717	$ 964
Long-term regulatory liabilities	8,570	8,211
SCE
Regulatory Liabilities
Current regulatory liabilities	717	964
Long-term regulatory liabilities	8,570	8,211
Total regulatory liabilities	9,287	9,175
SCE \| Regulatory balancing and memorandum accounts-Liabilities
Regulatory Liabilities
Current regulatory liabilities	685	584
Long-term regulatory liabilities	1,377	1,116
SCE \| Energy derivatives
Regulatory Liabilities
Current regulatory liabilities		338
SCE \| Costs of removal
Regulatory Liabilities
Long-term regulatory liabilities	2,673	2,589
SCE \| Deferred income taxes
Regulatory Liabilities
Long-term regulatory liabilities	2,227	2,250
SCE \| Recoveries in excess of ARO liabilities
Regulatory Liabilities
Long-term regulatory liabilities	1,285	1,231
SCE \| Pension and other postretirement benefits
Regulatory Liabilities
Long-term regulatory liabilities	984	1,007
SCE \| Other regulatory assets or liabilities
Regulatory Liabilities
Current regulatory liabilities	32	42
Long-term regulatory liabilities	$ 24	$ 18

Regulatory Assets and Liabili_5

Regulatory Assets and Liabilities (Balancing Accounts) (Details) - SCE - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	$ 1,487	$ 2,289
Energy resource recovery account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	(141)	1,580
Portfolio allocation balancing account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	929	(73)
New system generation balancing account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	237	(63)
Public purpose programs and energy efficiency programs
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	(1,805)	(1,577)
Base revenue requirement balancing account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	1,006	1,108
GRC wildfire mitigation balancing accounts
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	174	67
Residential uncollectibles balancing account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	51
Greenhouse gas auction revenue and low carbon fuel standard revenue
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	(393)	(289)
FERC balancing accounts
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	(208)	(123)
Wildfire and drought restoration accounts
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	432	352
Wildfire-related memorandum accounts
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	985	1,168
Risk management balancing account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	(74)
COVID 19-related memorandum accounts
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	66	67
Customer service re-platform (CSRP)
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	96	64
Tax accounting memorandum account and pole loading balancing account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	61	90
Excess Bond and Power Charge Balancing Account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	11	(56)
Other balancing account
Regulatory Assets and Liabilities
Net regulatory assets (liabilities)	$ 60	$ (26)

Commitments and Contingencies_2

Commitments and Contingencies (Overview) (Details) - SCE $ in Millions	1 Months Ended
	Sep. 30, 2022 USD ($) a item individual	May 31, 2022 USD ($) a individual item	Sep. 30, 2020 USD ($) a individual item	Oct. 31, 2019 a item individual	Nov. 30, 2018 a item individual	Jan. 31, 2018 item individual	Dec. 04, 2017 a individual item
December 2017 Wildfires
Commitments and Contingencies
Acres burned \| a							280,000
Structures destroyed							1,343
Fatalities \| individual							2
November 2018 Wildfires
Commitments and Contingencies
Acres burned \| a					100,000
Structures destroyed					1,643
Structures damaged					364
Fatalities \| individual					3
Additional fatalities \| individual					4
Montecito Mudslides
Commitments and Contingencies
Structures destroyed						135
Structures damaged						324
Fatalities \| individual						21
Additional fatalities presumed \| individual						2
Saddle Ridge Fire
Commitments and Contingencies
Acres burned \| a				9,000
Structures destroyed				19
Structures damaged				88
Fatalities \| individual				1
Number of Injured \| individual				8
Bobcat fire
Commitments and Contingencies
Acres burned \| a			116,000
Number of Injured \| individual			6
Estimated fire suppression costs \| $			$ 80
Bobcat fire \| Home/Residential
Commitments and Contingencies
Structures destroyed			87
Structures damaged			28
Bobcat fire \| Commercial property
Commitments and Contingencies
Structures destroyed			1
Bobcat fire \| Minor structures
Commitments and Contingencies
Structures destroyed			83
Structures damaged			19
Coastal Fire
Commitments and Contingencies
Acres burned \| a		200
Structures destroyed		20
Structures damaged		11
Number of Injured \| individual		2
Estimated fire suppression costs \| $		$ 3
Fairview Fire
Commitments and Contingencies
Acres burned \| a	28,000
Structures destroyed	22
Fatalities \| individual	2
Number of civilian injury \| individual	1
Number of Injured \| individual	2
Estimated fire suppression costs \| $	$ 39
Fairview Fire \| Home/Residential
Commitments and Contingencies
Structures damaged	5
Fairview Fire \| Minor structures
Commitments and Contingencies
Structures damaged	17

Commitments and Contingencies_3

Commitments and Contingencies (Wildfires) (Details) $ in Millions	1 Months Ended			2 Months Ended	3 Months Ended						9 Months Ended		12 Months Ended
	Oct. 31, 2021 USD ($)	Jan. 31, 2021 $ / claim	Oct. 31, 2020 USD ($)	Apr. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2020 $ / claim	Dec. 31, 2019 USD ($)	Sep. 30, 2023 USD ($) plaintiff	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Increase (decrease) in estimated loss					$ 475
Expected revenue through electric rates					27			$ 50			$ 33	$ 76
Total after-tax charge					323			598			384	879
Payments											747
Charge for wildfire-related claims					937						937		$ 1,119
Total pre-tax charge					448			830			532	1,220
Increase in accrued estimated losses					475			880			$ 565	1,296
2017/2018 Wildfire/Mudslide Events \| Individual Plaintiff Settlements
Commitments and Contingencies
Number of plaintiffs \| plaintiff											2,000
Post-2018 Wildfires
Commitments and Contingencies
Increase (decrease) in estimated loss											$ 124
Expected revenue through electric rates								162				162
Total after-tax charge					5			6			9	14
Payments											16
Charge for wildfire-related claims					790						790		682
Total pre-tax charge					7			9			13	20
Increase in accrued estimated losses					118			415			124	565
SCE
Commitments and Contingencies
Regulatory Assets					11,182						11,182		10,678
SCE \| 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Expected revenue through electric rates					27
Regulatory Assets					51						51
SCE \| 2017/2018 Wildfire/Mudslide Events \| SED Settlement
Commitments and Contingencies
Charge for wildfire-related claims	$ 550
Fine to State	110
Shareholder-funded safety measures costs	65
Third-party uninsured claims cost recovery waiver	$ 375
SCE \| 2017/2018 Wildfire/Mudslide Events \| Local Public Entity Settlements
Commitments and Contingencies
Payments										$ 360
SCE \| 2017/2018 Wildfire/Mudslide Events \| TKM Subrogation Settlement
Commitments and Contingencies
Payments			$ 1,200
Payment agreement for each dollar of claim \| $ / claim									0.555
SCE \| 2017/2018 Wildfire/Mudslide Events \| Individual Plaintiff Settlements
Commitments and Contingencies
Payments					316	$ 278	$ 148						$ 1,700	$ 1,700	$ 300
SCE \| 2017/2018 Wildfire/Mudslide Events \| Settled Litigation
Commitments and Contingencies
Charge for wildfire-related claims					209						209
SCE \| 2017/2018 Wildfire/Mudslide Events \| Settled Litigation \| SED Settlement
Commitments and Contingencies
Charge for wildfire-related claims					65						65
SCE \| 2017/2018 Wildfire/Mudslide Events \| Estimated Losses for Remaining Alleged and Potential Claims
Commitments and Contingencies
Charge for wildfire-related claims					728						728
SCE \| 2017/2018 Wildfire/Mudslide Events \| Aggregate
Commitments and Contingencies
Expected revenue through electric rates											409
Payments											8,400
Increase in accrued estimated losses											$ 9,300
SCE \| 2017/2018 Wildfire/Mudslide Events \| Aggregate \| Individual Plaintiff Settlements
Commitments and Contingencies
Number of plaintiffs \| plaintiff											11,000
SCE \| November 2018 Wildfires \| Woolsey Subrogation Settlement
Commitments and Contingencies
Payments				$ 2,200
Payment agreement for each dollar of claim \| $ / claim		0.67
SCE \| Post-2018 Wildfires
Commitments and Contingencies
Expected revenue through electric rates								162				162
Total after-tax charge					3						$ 7	8
Regulatory Assets					166						166
Total pre-tax charge					4						10	11
Increase in accrued estimated losses					118			$ 415			124	$ 565
Expected insurance recoveries					$ 560						560
SCE \| Post-2018 Wildfires \| Aggregate
Commitments and Contingencies
Expected revenue through electric rates											166
Total after-tax charge											48
Payments											30
Increase in accrued estimated losses											820
SCE \| Post-2018 Wildfires \| Aggregate \| CPUC
Commitments and Contingencies
Expected revenue through electric rates											152
SCE \| Post-2018 Wildfires \| Aggregate \| FERC
Commitments and Contingencies
Expected revenue through electric rates											$ 14

Commitments and Contingencies_4

Commitments and Contingencies (Accrual roll forward) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Loss contingency accrual roll forward
Wildfire-related claims, current	$ 150		$ 150		$ 121
Wildfire-related claims, non-current	1,583		1,583		1,687
2017/2018 Wildfire/Mudslide Events
Loss contingency accrual roll forward
Balance, beginning			1,119
Increase in accrued estimated losses	475	$ 880	565	$ 1,296
Amounts paid			(747)
Balance, end	937		937		1,119
Wildfire-related claims, current	150		150		121
Wildfire-related claims, non-current	1,583		1,583		1,687
2017/2018 Wildfire/Mudslide Events \| SED Settlement
Loss contingency accrual roll forward
Wildfire-related claims, current	6		6		56
Wildfire-related claims, non-current	59		59		64
2017/2018 Wildfire/Mudslide Events \| Settled Litigation
Loss contingency accrual roll forward
Wildfire-related claims, current	144		144		65
2017/2018 Wildfire/Mudslide Events \| Estimated Losses for Remaining Alleged and Potential Claims
Loss contingency accrual roll forward
Wildfire-related claims, non-current	728		728		934
Other Wildfire Related Claims
Loss contingency accrual roll forward
Wildfire-related claims, non-current	796		796		689
Post-2018 Wildfires
Loss contingency accrual roll forward
Balance, beginning			682
Increase in accrued estimated losses	118	415	124	565
Amounts paid			(16)
Balance, end	790		790		682
SCE
Loss contingency accrual roll forward
Wildfire-related claims, current	150		150		121
Wildfire-related claims, non-current	1,583		1,583		$ 1,687
SCE \| 2017/2018 Wildfire/Mudslide Events \| Settled Litigation
Loss contingency accrual roll forward
Balance, end	209		209
SCE \| 2017/2018 Wildfire/Mudslide Events \| Settled Litigation \| SED Settlement
Loss contingency accrual roll forward
Balance, end	65		65
SCE \| 2017/2018 Wildfire/Mudslide Events \| Estimated Losses for Remaining Alleged and Potential Claims
Loss contingency accrual roll forward
Balance, end	728		728
SCE \| Post-2018 Wildfires
Loss contingency accrual roll forward
Increase in accrued estimated losses	$ 118	$ 415	$ 124	$ 565

Commitments and Contingencies_5

Commitments and Contingencies (Expense summary) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Charge for wildfire-related claims	$ 475	$ 880	$ 565	$ 1,296
Expected revenue from CPUC and FERC customers	(27)	(50)	(33)	(76)
Total pre-tax charge	448	830	532	1,220
Income tax benefit	(125)	(232)	(148)	(341)
Total after-tax charge	323	598	384	879
Post-2018 Wildfires
Commitments and Contingencies
Charge for wildfire-related claims	118	415	124	565
Expected insurance recoveries	(111)	(244)	(111)	(383)
Expected revenue from CPUC and FERC customers		(162)		(162)
Total pre-tax charge	7	9	13	20
Income tax benefit	(2)	(3)	(4)	(6)
Total after-tax charge	5	6	9	14
SCE \| 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Expected revenue from CPUC and FERC customers	(27)
SCE \| Post-2018 Wildfires
Commitments and Contingencies
Charge for wildfire-related claims	118	415	124	565
Expected insurance recoveries	(114)	(253)	(114)	(392)
Expected revenue from CPUC and FERC customers		$ (162)		(162)
Total pre-tax charge	4		10	11
Income tax benefit	(1)		(3)	(3)
Total after-tax charge	$ 3		$ 7	$ 8

Commitments and Contingencies_6

Commitments and Contingencies (Wildfire Insurance) (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended		12 Months Ended
	Aug. 31, 2023	May 31, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
SCE
Commitments and Contingencies
Regulatory assets			$ 11,182		$ 11,182				$ 10,678
Wildfire insurance expense							$ 450	$ 437
SCE \| Customer-funded self-insurance
Commitments and Contingencies
Wildfire insurance coverage		$ 1,000
Rate funded wildfire self-insurance program		150
Rate funded wildfire self-insurance program future proceeds, assuming no claims		$ 300
Shareholder contribution on self insurance (as a percent)		2.50%
Threshold for insurance costs before shareholder contributions		$ 500
Maximum annual shareholder contribution		12.5
Self-insurance fund value		$ 1,000
SCE \| Insurance coverage through June 2023
Commitments and Contingencies
Wildfire insurance coverage					1,000
Self insurance					100
Coverage net					937
SCE \| Insurance coverage through June 2022
Commitments and Contingencies
Wildfire insurance coverage					1,000
Self insurance					100
Co-insurance					63
SCE \| Commercial insurance carriers
Commitments and Contingencies
Wildfire insurance expense							$ 357	$ 413
SCE \| Commercial insurance carriers \| Insurance coverage through June 2023
Commitments and Contingencies
Coverage net					835
SCE \| Commercial insurance carriers \| Insurance coverage through June 2022
Commitments and Contingencies
Coverage net					875
SCE \| Edison Insurance Services-EIS \| Insurance coverage through June 2023
Commitments and Contingencies
Coverage net					102
SCE \| Edison Insurance Services-EIS \| Insurance coverage through June 2022
Commitments and Contingencies
Coverage net					28
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Charge for wildfire-related claims			475	$ 880	565	$ 1,296
Expected revenue through electric rates			27	50	33	76
2017/2018 Wildfire/Mudslide Events \| SCE
Commitments and Contingencies
Wildfire insurance coverage					1,000
Self insurance					10
Expected revenue through electric rates			27
Regulatory assets			51		51
Potential impairment			173		173
2017/2018 Wildfire/Mudslide Events \| SCE \| Aggregate
Commitments and Contingencies
Charge for wildfire-related claims					9,300
Litigation settlement					8,600
Insurance recoveries					2,000
Expected revenue through electric rates					409
2017/2018 Wildfire/Mudslide Events \| SCE \| SED Settlement \| Aggregate
Commitments and Contingencies
Litigation settlement					65
November 2018 Wildfires \| SCE
Commitments and Contingencies
Wildfire insurance coverage					1,000
Self insurance					10
Thomas and Koenigstein Fires and Montecito Mudslides \| SCE
Commitments and Contingencies
Requested increase (decrease) revenue requirement	$ 2,400
Loss contingency, Uninsured claims	2,000
Legal and other costs	400
CPUC cost recovery proceedings, capital recovery portion	$ 65
Post-2018 Wildfires
Commitments and Contingencies
Charge for wildfire-related claims			118	415	124	565
Insurance recoveries			111	244	111	383
Expected revenue through electric rates				162		162
Post-2018 Wildfires \| Edison Insurance Services-EIS
Commitments and Contingencies
Charge for wildfire-related claims			3	9	3	9
Post-2018 Wildfires \| SCE
Commitments and Contingencies
Charge for wildfire-related claims			118	415	124	565
Insurance recoveries			114	253	114	392
Expected revenue through electric rates				$ 162		$ 162
Regulatory assets			166		166
Expected insurance recoveries			$ 560		560
Post-2018 Wildfires \| SCE \| Aggregate
Commitments and Contingencies
Charge for wildfire-related claims					820
Insurance recoveries					587
Expected revenue through electric rates					$ 166

Commitments and Contingencies_7

Commitments and Contingencies (Environmental Remediation) (Details) - SCE $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($) site	Sep. 30, 2022 USD ($)
Jointly Owned Utility Plant Interests [Line Items]
Recorded estimated minimum liability	$ 254
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent
Environmental remediation regulatory assets	$ 233
Expected recovery from incentive mechanism	$ 36
Expected recovery from incentive mechanism (percent)	90%
Recovery through customer rates	$ 197
Recovery through customer rates (percent)	100%
Environmental remediation expense	$ 9	$ 5
Clean up (period)	40 years
Expected remediation costs, low end of range	$ 9
Expected remediation costs, high end of range	$ 26
Material sites
Jointly Owned Utility Plant Interests [Line Items]
Identified remediation sites (number) \| site	26
Minimum estimated liability	$ 1
Recorded estimated minimum liability	251
Cost may exceed liability	120
Material sites \| San Onofre
Jointly Owned Utility Plant Interests [Line Items]
Recorded estimated minimum liability	$ 159
Immaterial sites
Jointly Owned Utility Plant Interests [Line Items]
Identified remediation sites (number) \| site	12
Recorded estimated minimum liability	$ 3
Cost may exceed liability	$ 5

Commitments and Contingencies_8

Commitments and Contingencies (Nuclear) (Details) $ in Millions	Sep. 30, 2023 USD ($)
Palo Verde (nuclear)
Commitments and Contingencies
Federal loss limit, bodily injury and property damage from nuclear incident	$ 16,500
San Onofre
Commitments and Contingencies
Federal loss limit, bodily injury and property damage from nuclear incident	560
SCE
Commitments and Contingencies
Limit on retroactive premium adjustments assessment, per year	24
Maximum per incident, prior events	255
Maximum per incident, prior events, annually	38
SCE \| Palo Verde (nuclear)
Commitments and Contingencies
Minimum federal requirement of nuclear property insurance	1,100
Maximum per incident	79
Maximum per incident annual	12
SCE \| San Onofre
Commitments and Contingencies
Minimum federal requirement of nuclear property insurance	$ 50

Equity (Issuances) (Details)

Equity (Issuances) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended	9 Months Ended
	Oct. 11, 2023	Sep. 30, 2023	Sep. 30, 2023	Aug. 31, 2022
Equity
Preferred stock redemption amount	$ 750
Series A
Equity
Preferred stock, dividend rate, (as a percent)	5.375%
Liquidation preference	$ 915
Liquidation value (in dollars per share)	$ 1,000
Series B
Equity
Preferred stock, dividend rate, (as a percent)	5%
Liquidation preference	$ 895
Liquidation value (in dollars per share)	$ 1,000
At-the-market Program (ATM)
Equity
Aggregate sale price				$ 500
Stock compensation awards
Equity
Stock issued (in shares)		204,724	1,013,203
Proceeds received, net of offering costs		$ 11	$ 50
In lieu of dividend payment
Equity
Stock issued (in shares)		61,922	189,927
Proceeds received, net of offering costs		$ 4	$ 13
401(K)
Equity
Stock issued (in shares)		20,400	90,400
Proceeds received, net of offering costs		$ 1	$ 6
Employee Stock Purchase Plan
Equity
Stock issued (in shares)		29,442	55,923
Proceeds received, net of offering costs		$ 2	$ 4
Voluntary Cash Purchase
Equity
Stock issued (in shares)			9,905
Proceeds received, net of offering costs			$ 1

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended					9 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 17,549	$ 17,522	$ 17,675	$ 17,632	$ 17,789	$ 17,522	$ 17,789
Pension and PBOP - net loss:
Other comprehensive income, net of tax	1	2	1	4	2	3	7
Ending Balance	17,694	17,549	17,293	17,675	17,632	17,571	17,293
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(9)	(11)	(48)	(52)	(54)	(11)	(54)
Pension and PBOP - net loss:
Other comprehensive income, net of tax	1	2	1	4	2
Ending Balance	(8)	(9)	(47)	(48)	(52)	(8)	(47)
Accumulated Defined Benefit Plans Adjustment
Pension and PBOP - net loss:
Reclassified from accumulated other comprehensive loss1			1			1	7
Foreign currency translation adjustments
Pension and PBOP - net loss:
Reclassified from accumulated other comprehensive loss1						2
SCE
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	20,807	20,789	20,337	19,652	19,835	20,789	19,835
Pension and PBOP - net loss:
Other comprehensive income, net of tax			1	3	1		5
Ending Balance	20,881	20,807	19,936	20,337	19,652	20,775	19,936
SCE \| Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(8)	(8)	(28)	(31)	(32)	(8)	(32)
Pension and PBOP - net loss:
Other comprehensive income, net of tax			1	3	1
Ending Balance	$ (8)	$ (8)	(27)	$ (28)	$ (31)	$ (8)	(27)
SCE \| Accumulated Defined Benefit Plans Adjustment
Pension and PBOP - net loss:
Reclassified from accumulated other comprehensive loss1			$ 1				$ 5

Other Income (Details)

Other Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Other Income (Details) - USD ($) $ in Millions	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Income And Expense
Total other income and (expenses)	$ 130	$ 85	$ 377	$ 219
SCE
Other Income And Expense
Equity allowance for funds used during construction	41	30	116	91
Increase in cash surrender value of life insurance policies and life insurance benefits	9	9	29	30
Interest income	68	19	194	36
Net periodic benefit income - non-service components	26	34	78	99
Civic, political and related activities and donations	(12)	(11)	(28)	(29)
Other	(4)	(10)	(14)	(17)
Total other income and (expenses)	128	71	375	210
Edison International Parent and Other
Other Income And Expense
Net gains (losses) on equity securities		8	(3)	2
Other	$ 2	$ 6	$ 5	$ 7

Supplemental Cash Flows Infor_3

Supplemental Cash Flows Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash payments (receipts):
Interest, net of amounts capitalized	$ 1,034	$ 788
Income taxes, net	0	(49)
Common stock
Non-cash financing and investing activities:
Dividends declared but not paid	283	267
Preferred stock
Non-cash financing and investing activities:
Dividends declared but not paid	9	6
SCE
Cash payments (receipts):
Interest, net of amounts capitalized	888	701
Income taxes, net	0	(49)
Non-cash financing and investing activities:
Accrued capital expenditures	584	649
SCE \| Common stock
Non-cash financing and investing activities:
Dividends declared but not paid	350	325
SCE \| Preferred stock
Non-cash financing and investing activities:
Dividends declared but not paid	$ 9	$ 6

Related-Party Transactions (Det

Related-Party Transactions (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Related party transactions
Long-term insurance receivable due from affiliate		$ 549		$ 549				$ 465
SCE
Related party transactions
Wildfire insurance expense						$ 450	$ 437
SCE \| Wildfire liability insurance \| Edison Insurance Services-EIS
Related party transactions
Wildfire-related insurance premiums	$ 273
Insurance purchased but not reinsured	$ 93
Insurance income and related expense				44
Prepaid insurance								106
Long-term insurance receivable due from affiliate		431		431				$ 334
Wildfire insurance expense		$ 0	$ 67	$ 132	$ 146

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended	9 Months Ended
Insider Trading Arrangements	Sep. 30, 2023	Sep. 30, 2023
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		Trading Plans During the quarter ended September 30, 2023, no director or Section 16 officer adopted or terminated any Rule 10b5-1 trading arrangements or non-Rule 10b5-1 trading arrangements (in each case, as defined in Item 408(a) of Regulation S-K).
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false