SOUTHERN CALIFORNIA EDISON (SCE-PN) 10-K 27 Feb 25 2024 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2024	Feb. 20, 2025	Jun. 28, 2024
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2024
Current Fiscal Year End Date	--12-31
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 Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Public Float			$ 27.7
Entity Common Stock, Shares Outstanding		385,023,526
Documents Incorporated by Reference [Text Block]	DOCUMENTS INCORPORATED BY REFERENCE
Entity Central Index Key	0000827052
Document Fiscal Period Focus	FY
Amendment Flag	false
Document Fiscal Year Focus	2024
SCE
Entity Information [Line Items]
Document Period End Date	Dec. 31, 2024
Current Fiscal Year End Date	--12-31
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 Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
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
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		434,888,104
Entity Central Index Key	0000092103
Document Fiscal Period Focus	FY
Amendment Flag	false
Document Fiscal Year Focus	2024

Audit Information

Audit Information	12 Months Ended
	Dec. 31, 2024
Auditor [Line Items]
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Los Angeles, California
Auditor Firm ID	238
SCE
Auditor [Line Items]
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Los Angeles, California
Auditor Firm ID	238

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating revenue	$ 17,599	$ 16,338	$ 17,220
Purchased power and fuel	5,209	5,486	6,375
Operation and maintenance	5,172	4,138	4,724
Wildfire-related claims, net of insurance recoveries	652	667	1,313
Wildfire Insurance Fund expense	146	213	214
Depreciation and amortization	2,866	2,635	2,561
Property and other taxes	624	571	501
Impairment, net of other operating income	0	1	49
Total operating expenses	14,669	13,711	15,737
Operating income	2,930	2,627	1,483
Interest expense	(1,869)	(1,612)	(1,169)
Other income, net	502	500	348
Income before income taxes	1,563	1,515	662
Income tax expense (benefit)	17	108	(162)
Net income	1,546	1,407	824
Less: Preference stock dividend requirements of SCE	175	123	107
Preferred stock dividend requirements of Edison International	87	87	105
Net income available to Edison International common shareholders	$ 1,284	$ 1,197	$ 612
Basic earnings per share:
Weighted average shares of common stock outstanding (in shares)	386	383	381
Basic earnings per common share available to Edison International common shareholders (in dollars per share)	$ 3.33	$ 3.12	$ 1.61
Diluted earnings per share:
Weighted average shares of common stock outstanding, including effect of dilutive securities (in shares)	388	385	383
Diluted earnings per common share available to Edison International common shareholders (in dollars per share)	$ 3.31	$ 3.11	$ 1.60
SCE
Operating revenue	$ 17,547	$ 16,275	$ 17,172
Purchased power and fuel	5,209	5,486	6,375
Operation and maintenance	5,064	4,071	4,659
Wildfire-related claims, net of insurance recoveries	647	665	1,305
Wildfire Insurance Fund expense	146	213	214
Depreciation and amortization	2,865	2,633	2,559
Property and other taxes	620	566	497
Impairment, net of other operating income	0	1	50
Total operating expenses	14,551	13,635	15,659
Operating income	2,996	2,640	1,513
Interest expense	(1,575)	(1,356)	(1,005)
Other income, net	493	497	337
Income before income taxes	1,914	1,781	845
Income tax expense (benefit)	120	184	(109)
Net income	1,794	1,597	954
Preferred stock dividend requirements of Edison International	175	123	107
Net income available to Edison International common shareholders	$ 1,619	$ 1,474	$ 847

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Net income	$ 1,546	$ 1,407	$ 824
Other comprehensive income (loss), net of tax:
Pension and postretirement benefits other than pensions	9	(1)	43
Foreign currency translation adjustments	0	3	0
Other comprehensive income, net of tax	9	2	43
Comprehensive income	1,555	1,409	867
Less: Comprehensive income attributable to noncontrolling interests	175	123	107
Comprehensive income attributable to Edison International	1,380	1,286	760
SCE
Net income	1,794	1,597	954
Other comprehensive income (loss), net of tax:
Pension and postretirement benefits other than pensions	3	(4)	24
Other comprehensive income, net of tax	3	(4)	24
Comprehensive income	$ 1,797	$ 1,593	$ 978

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
ASSETS
Cash and cash equivalents	$ 193	$ 345
Receivables, less allowances of $352 and $360 for uncollectible accounts at respective dates	2,169	2,016
Accrued unbilled revenue	848	742
Inventory	538	527
Prepaid expenses	103	112
Regulatory assets	2,748	2,524
Wildfire Insurance Fund contributions	138	204
Other current assets	418	341
Total current assets	7,155	6,811
Nuclear decommissioning trusts	4,286	4,173
Other investments	57	54
Total investments	4,343	4,227
Utility property, plant and equipment, less accumulated depreciation and amortization of $14,207 and $12,910 at respective dates	59,047	55,877
Nonutility property, plant and equipment, less accumulated depreciation of $124 and $114 at respective dates	207	207
Total property, plant and equipment	59,254	56,084
Receivables, less allowances of $43 and $4 for uncollectible accounts at respective dates	62	4
Regulatory assets (include $1,512 and $1,558 related to a Variable Interest Entity "VIE" at respective dates)	8,886	8,897
Wildfire Insurance Fund contributions	1,878	1,951
Operating lease right-of-use assets	1,180	1,221
Long-term insurance receivables	418	501
Other long-term assets	2,403	2,062
Total other assets	14,827	14,636
Total assets	85,579	81,758
LIABILITIES AND EQUITY
Short-term debt	998	1,077
Current portion of long-term debt	2,049	2,697
Accounts payable	2,000	1,983
Wildfire-related claims	60	30
Accrued interest	422	390
Regulatory liabilities	1,347	763
Current portion of operating lease liabilities	124	120
Other current liabilities	1,439	1,538
Total current liabilities	8,439	8,598
Long-term debt (include $1,468 and $1,515 related to a VIE at respective dates)	33,534	30,316
Deferred income taxes and credits	7,180	6,672
Pensions and benefits	384	415
Asset retirement obligations	2,580	2,666
Regulatory liabilities	10,159	9,420
Operating lease liabilities	1,056	1,101
Wildfire-related claims	941	1,368
Other deferred credits and other long-term liabilities	3,566	3,258
Total deferred credits and other liabilities	25,866	24,900
Total liabilities	67,839	63,814
Commitments and contingencies (Note 12)
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	1,645	1,673
Common stock, no par value (800,000,000 shares authorized; 384,784,719 and 383,924,912 shares issued and outstanding at respective dates)	6,353	6,338
Accumulated other comprehensive loss	0	(9)
Retained earnings	7,567	7,499
Total Edison International's shareholders' equity	15,565	15,501
Noncontrolling interests – preference stock of SCE	2,175	2,443
Total equity	17,740	17,944
Total liabilities and equity	85,579	81,758
SCE
ASSETS
Cash and cash equivalents	78	214
Receivables, less allowances of $352 and $360 for uncollectible accounts at respective dates	2,160	1,981
Accrued unbilled revenue	845	741
Inventory	538	527
Prepaid expenses	102	111
Regulatory assets	2,748	2,524
Wildfire Insurance Fund contributions	138	204
Other current assets	415	331
Total current assets	7,024	6,633
Nuclear decommissioning trusts	4,286	4,173
Other investments	38	38
Total investments	4,324	4,211
Utility property, plant and equipment, less accumulated depreciation and amortization of $14,207 and $12,910 at respective dates	59,047	55,877
Nonutility property, plant and equipment, less accumulated depreciation of $124 and $114 at respective dates	199	201
Total property, plant and equipment	59,246	56,078
Receivables, less allowances of $43 and $4 for uncollectible accounts at respective dates	62	4
Regulatory assets (include $1,512 and $1,558 related to a Variable Interest Entity "VIE" at respective dates)	8,886	8,897
Wildfire Insurance Fund contributions	1,878	1,951
Operating lease right-of-use assets	1,174	1,214
Other long-term assets	2,317	1,983
Total other assets	14,751	14,561
Total assets	85,345	81,483
LIABILITIES AND EQUITY
Short-term debt	553	831
Current portion of long-term debt	1,249	2,197
Accounts payable	2,078	1,966
Wildfire-related claims	60	30
Accrued interest	385	355
Regulatory liabilities	1,347	763
Current portion of operating lease liabilities	123	118
Other current liabilities	1,495	1,535
Total current liabilities	7,290	7,795
Long-term debt (include $1,468 and $1,515 related to a VIE at respective dates)	29,266	26,297
Deferred income taxes and credits	8,697	8,126
Pensions and benefits	92	105
Asset retirement obligations	2,580	2,666
Regulatory liabilities	10,159	9,420
Operating lease liabilities	1,051	1,096
Wildfire-related claims	941	1,368
Other deferred credits and other long-term liabilities	3,518	3,206
Total deferred credits and other liabilities	27,038	25,987
Total liabilities	63,594	60,079
Commitments and contingencies (Note 12)
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	2,220	2,495
Common stock, no par value (800,000,000 shares authorized; 384,784,719 and 383,924,912 shares issued and outstanding at respective dates)	2,168	2,168
Additional paid-in capital	8,950	8,446
Accumulated other comprehensive loss	(9)	(12)
Retained earnings	8,422	8,307
Total equity	21,751	21,404
Total liabilities and equity	85,345	81,483
SCE | Nonrelated Party
ASSETS
Long-term insurance receivables	131	157
SCE | Affiliated Entity
ASSETS
Long-term insurance receivables	$ 303	$ 355

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Receivables, allowances for uncollectible accounts, current	$ 352	$ 360
Utility property, plant and equipment, accumulated depreciation	14,207	12,910
Nonutility property, plant and equipment, accumulated depreciation	124	114
Receivables, allowances for uncollectible accounts, Noncurrent	43	4
Total long-term	8,886	8,897
Long-term debt, excluding current maturities	$ 33,534	$ 30,316
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	800,000,000	800,000,000
Common stock, shares issued (in shares)	384,784,719	383,924,912
Common stock, shares outstanding (in shares)	384,784,719	383,924,912
SCE Recovery Funding LLC
Total long-term	$ 1,512	$ 1,558
Long-term debt, excluding current maturities	$ 1,468	$ 1,515
Series A Preferred Stock
Preferred stock, shares issued (in shares)	1,159,317
Preferred stock, shares outstanding (in shares)	1,159,317
Series B Preferred Stock
Preferred stock, shares issued (in shares)	503,454	532,454
Preferred stock, shares outstanding (in shares)	503,454	532,454
SCE
Receivables, allowances for uncollectible accounts, current	$ 347	$ 360
Utility property, plant and equipment, accumulated depreciation	14,207	12,910
Nonutility property, plant and equipment, accumulated depreciation	108	100
Receivables, allowances for uncollectible accounts, Noncurrent	43	4
Total long-term	8,886	8,897
Long-term debt, excluding current maturities	$ 29,266	$ 26,297
Common stock, no par value (in dollars per share)	$ 0	$ 0
Common stock, shares authorized (in shares)	560,000,000	560,000,000
Common stock, shares issued (in shares)	434,888,104	434,888,104
Common stock, shares outstanding (in shares)	434,888,104	434,888,104
SCE | SCE Recovery Funding LLC
Total long-term	$ 1,512	$ 1,558
Long-term debt, excluding current maturities	$ 1,468	$ 1,515
SCE | Preferred Stock
Preferred stock, shares issued (in shares)	0

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net income	$ 1,546	$ 1,407	$ 824
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	2,939	2,721	2,633
Allowance for equity during construction	(187)	(157)	(137)
Impairment, net of other operating income	0	1	49
Deferred income taxes	9	108	(177)
Wildfire Insurance Fund amortization expense	146	213	214
Other	81	57	80
Nuclear decommissioning trusts	(174)	(180)	(123)
Contributions to Wildfire Insurance Fund	(95)	(95)	(95)
Changes in operating assets and liabilities:
Receivables	(278)	(349)	(252)
Inventory	(14)	(63)	(58)
Accounts payable	53	(408)	367
Tax receivables and payables	(43)	9	18
Other current assets and liabilities	(42)	185	207
Derivative assets and liabilities, net	28	(174)	115
Regulatory assets and liabilities, net	1,219	576	(51)
Wildfire-related insurance receivable	83	(36)	(390)
Wildfire-related claims	(397)	(410)	(56)
Other noncurrent assets and liabilities	140	(4)	48
Net cash provided by operating activities	5,014	3,401	3,216
Cash flows from financing activities:
Long-term debt issued, net of discount and issuance costs of $36, $37 and $51 for the respective years	5,256	5,121	5,971
Long-term debt repaid	(2,701)	(2,498)	(1,085)
Short-term debt issued	0	1,076	1,000
Short-term debt repaid	(401)	(2,407)	(1,543)
Common stock repurchased	(200)	0	0
Preferred and preference stock issued, net of issuance cost	345	542	0
Preferred and preference stock repurchased and redeemed	(656)	(289)	0
Commercial paper borrowing (repayments), net	308	1,102	(317)
Dividends and distribution to noncontrolling interests	(168)	(117)	(110)
Common stock dividends paid	(1,198)	(1,112)	(1,050)
Preferred stock dividends paid	(88)	(108)	(99)
Other	177	137	114
Net cash provided by financing activities	674	1,447	2,881
Cash flows from investing activities:
Capital expenditures	(5,707)	(5,448)	(5,778)
Proceeds from sale of nuclear decommissioning trust investments	5,019	4,597	4,177
Purchases of nuclear decommissioning trust investments	(4,898)	(4,417)	(4,054)
Other	50	35	81
Net cash used in investing activities	(5,536)	(5,233)	(5,574)
Net increase (decrease) in cash, cash equivalents and restricted cash	152	(385)	523
Cash, cash equivalents and restricted cash at beginning of year	532	917	394
Cash, cash equivalents and restricted cash at end of year	684	532	917
SCE
Cash flows from operating activities:
Net income	1,794	1,597	954
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	2,929	2,710	2,626
Allowance for equity during construction	(187)	(157)	(137)
Impairment, net of other operating income	0	1	50
Deferred income taxes	69	179	(111)
Wildfire Insurance Fund amortization expense	146	213	214
Other	56	33	59
Nuclear decommissioning trusts	(174)	(180)	(123)
Contributions to Wildfire Insurance Fund	(95)	(95)	(95)
Changes in operating assets and liabilities:
Receivables	(298)	(336)	(245)
Inventory	(14)	(63)	(58)
Accounts payable	148	(413)	366
Tax receivables and payables	(44)	4	(1)
Other current assets and liabilities	(41)	220	150
Derivative assets and liabilities, net	28	(174)	115
Regulatory assets and liabilities, net	1,219	576	(51)
Wildfire-related insurance receivable	78	(39)	(398)
Wildfire-related claims	(397)	(410)	(56)
Other noncurrent assets and liabilities	166	15	60
Net cash provided by operating activities	5,383	3,681	3,319
Cash flows from financing activities:
Long-term debt issued, net of discount and issuance costs of $36, $37 and $51 for the respective years	4,214	3,588	5,032
Long-term debt repaid	(2,201)	(2,098)	(385)
Short-term debt issued	0	706	0
Short-term debt repaid	(386)	(1,051)	(1,543)
Capital contributions from Edison International Parent	500	0	1,400
Preferred and preference stock issued, net of issuance cost	345	542	0
Preferred and preference stock repurchased and redeemed	(628)	0	0
Commercial paper borrowing (repayments), net	94	963	(406)
Common stock dividends paid	(1,440)	(1,400)	(1,300)
Preferred stock dividends paid	(168)	(117)	(110)
Other	(16)	49	36
Net cash provided by financing activities	314	1,182	2,724
Cash flows from investing activities:
Capital expenditures	(5,703)	(5,446)	(5,776)
Proceeds from sale of nuclear decommissioning trust investments	5,019	4,597	4,177
Purchases of nuclear decommissioning trust investments	(4,898)	(4,417)	(4,054)
Other	52	35	96
Net cash used in investing activities	(5,530)	(5,231)	(5,557)
Net increase (decrease) in cash, cash equivalents and restricted cash	167	(368)	486
Cash, cash equivalents and restricted cash at beginning of year	398	766	280
Cash, cash equivalents and restricted cash at end of year	$ 565	$ 398	$ 766

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Premium and net of discount and issuance costs	$ 44	$ 54	$ 62
SCE
Premium and net of discount and issuance costs	$ 36	$ 37	$ 51

Consolidated Statements of Chan

Consolidated Statements of Changes in Equity - USD ($) $ in Millions	Total	SCE	Preferred Stock	Preferred Stock SCE	Common Stock	Common Stock SCE	Additional Paid-in Capital SCE	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss SCE	Retained Earnings	Retained Earnings SCE	Subtotal	Noncontrolling Interests
Beginning balance at Dec. 31, 2021	$ 17,789	$ 19,835	$ 1,977	$ 1,945	$ 6,071	$ 2,168	$ 7,033	$ (54)	$ (32)	$ 7,894	$ 8,721	$ 15,888	$ 1,901
Increase (decrease) in Stockholders' Equity
Net income	824	954								717	954	717	107
Other comprehensive income (loss)	43	24						43	24			43
Capital contribution from Edison International Parent		1,400					1,400
Common stock issued	87				87							87
Common stock dividends declared	(1,083)	(1,325)								(1,083)	(1,325)	(1,083)
Preferred stock dividend declared	(74)	(107)								(74)	(107)	(74)
Dividends to noncontrolling interests	(107)												(107)
Noncash stock-based compensation	42	22			42		22					42
Other	1		(1)									1
Stock-based compensation		(14)					(14)
Ending balance at Dec. 31, 2022	17,522	20,789	1,978	1,945	6,200	2,168	8,441	(11)	(8)	7,454	8,243	15,621	1,901
Increase (decrease) in Stockholders' Equity
Net income	1,407	1,597								1,284	1,597	1,284	123
Other comprehensive income (loss)	2	(4)						2	(4)			2
Common stock issued	92				92							92
Common stock dividends declared	(1,147)	(1,410)								(1,147)	(1,410)	(1,147)
Preferred stock dividend declared	(108)	(123)								(108)	(123)	(108)
Dividends to noncontrolling interests	(123)												(123)
Noncash stock-based compensation	46	26			46		26					46
Preference stock issued, net of issuance cost	542	542		550			(8)						542
Preferred stock repurchased	(289)		(305)							16		(289)
Stock-based compensation		(13)					(13)
Ending balance at Dec. 31, 2023	17,944	21,404	1,673	2,495	6,338	2,168	8,446	(9)	(12)	7,499	8,307	15,501	2,443
Increase (decrease) in Stockholders' Equity
Net income	1,546	1,794								1,371	1,794	1,371	175
Other comprehensive income (loss)	9	3						9	3			9
Capital contribution from Edison International Parent		500					500
Common stock issued	158				158							158
Common stock repurchased	200				200							200
Common stock dividends declared	(1,221)	(1,510)								(1,221)	(1,510)	(1,221)
Preferred stock dividend declared	(88)	(154)								(88)	(154)	(88)
Dividends to noncontrolling interests	(154)									6		6	(160)
Noncash stock-based compensation	57	32			57		32					57
Preference stock issued, net of issuance cost	345	345		350			(5)						345
Preference stock redeemed	(628)	(628)		(625)			12			(15)			(628)
Preferred stock repurchased	(28)		(28)							0		(28)
Stock-based compensation		(35)					(35)
Ending balance at Dec. 31, 2024	$ 17,740	$ 21,751	$ 1,645	$ 2,220	$ 6,353	$ 2,168	$ 8,950	$ 0	$ (9)	$ 7,567	$ 8,422	$ 15,565	$ 2,175

Consolidated Statements of Ch_2

Consolidated Statements of Changes in Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Dividends declared per common share (in dollars per share)	$ 3.1675	$ 2.9925	$ 2.8375
SCE
Dividends declared per common share (in dollars per share)	3.4722	3.2422	3.0468
Series A Preferred Stock
Preferred stock dividends (in dollars per share)	53.75	53.75	53.75
Series B Preferred Stock
Preferred stock dividends (in dollars per share)	50	50	42.08333
O 2022 A Dividends, Minimum
Preferred stock dividends (in dollars per share)			65.1098
O 2022 A Dividends, Minimum | SCE
Preferred stock dividends (in dollars per share)			65.1098
O 2022 A Dividends, Maximum
Preferred stock dividends (in dollars per share)			143.75
O 2022 A Dividends, Maximum | SCE
Preferred stock dividends (in dollars per share)			$ 143.75
O 2023 A Dividends, Minimum
Preferred stock dividends (in dollars per share)		96.823
O 2023 A Dividends, Minimum | SCE
Preferred stock dividends (in dollars per share)		96.823
O 2023 A Dividends, Maximum
Preferred stock dividends (in dollars per share)		143.75
O 2023 A Dividends, Maximum | SCE
Preferred stock dividends (in dollars per share)		$ 143.75
O 2024 A Dividends, Minimum
Preferred stock dividends (in dollars per share)	24.418
O 2024 A Dividends, Minimum | SCE
Preferred stock dividends (in dollars per share)	24.418
O 2024 A Dividends, Maximum
Preferred stock dividends (in dollars per share)	199.479
O 2024 A Dividends, Maximum | SCE
Preferred stock dividends (in dollars per share)	$ 199.479

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Organization and Basis of Presentation Edison International is the ultimate parent holding company of SCE and Edison Energy, LLC, doing business as Trio. 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 across Southern, Central, and Coastal California. Trio is a global energy advisory firm providing integrated sustainability and energy solutions to commercial, industrial, and institutional customers. Trio's business activities are currently not material to report as a separate business segment, and SCE is the single reportable segment. See "Segment Information" below for further discussion. 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 accounting policies conform to GAAP, including the accounting principles for rate-regulated enterprises, which reflect the ratemaking policies of the CPUC and the FERC. SCE applies authoritative guidance for rate-regulated enterprises to the portion of its operations in which regulators set rates at levels intended to recover the estimated costs of providing service, plus a return on net investments in assets, or rate base. Regulators may also impose certain penalties or grant certain incentives. Due to timing and other differences in the collection of electric utility revenue, these accounting principles require an incurred cost that would otherwise be charged to expense by a non-regulated entity to be capitalized as a regulatory asset if it is probable that the cost is recoverable through future rates; and conversely the accounting principles require recording of a regulatory liability for amounts collected in rates to recover costs expected to be incurred in the future or amounts collected in excess of costs incurred and refundable to customers. In addition, SCE recognizes revenue and regulatory assets from alternative revenue programs, which enables the utility to adjust future rates in response to past activities or completed events, if certain criteria are met. SCE assesses at the end of each reporting period whether regulatory assets are probable of future recovery. See Note 11 for the composition of regulatory assets and liabilities. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reported period. Actual results could differ from those estimates. Certain prior period amounts have been conformed to the current period's presentation, including the separate presentation of accrued interest on Edison International's and SCE's consolidated balance sheets. Segment Information The President and Chief Executive Officer ("CEO") of Edison International, as the chief operating decision maker ("CODM"), assesses Edison International’s performance and allocates resources based on its net income. This measure is reported as "Net income attributable to Edison International common shareholders" on Edison International's consolidated statements of income. The President and CEO of SCE, as its CODM, evaluates SCE's performance and allocates resources based on "Net income available for common stock" reported on SCE's consolidated statements of income. These net income measures are used by the Edison International and SCE CODMs to compare earnings from period to period and facilitate their respective assessment of performance of Edison International and SCE. The CODMs also use core earnings (loss) for financial planning and for additional analyses of performance. Core earnings (loss) is a non-GAAP financial measure which is defined as earnings attributable to shareholders less non-core items. Non-core items include income or loss from discontinued operations and income or loss from significant discrete items that management does not consider representative of ongoing earnings. Edison International's and SCE's significant segment expenses agree to those disclosed in the consolidated statements of income. The measures of Edison International's and SCE's segment assets are reported on Edison International's and SCE's consolidated balance sheets, respectively, as total assets. 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 December 31, (in millions) 2024 2023 2024 2023 Money market funds $ 101 $ 199 $ — $ 78 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: December 31, (in millions) 2024 2023 Edison International: Cash and cash equivalents $ 193 $ 345 Short-term restricted cash 1 40 35 Long-term restricted cash 2 451 152 Total cash, cash equivalents and restricted cash $ 684 $ 532 SCE: Cash and cash equivalents $ 78 $ 214 Short-term restricted cash 1 36 33 Long-term restricted cash 2 451 151 Total cash, cash equivalents and restricted cash $ 565 $ 398 1 Includes SCE Recovery Funding LLC's restricted cash for payments of senior secured recovery bonds and is reflected in "Other current assets" on Edison International's and SCE's consolidated balance sheets. 2 The SCE amount represents cash collected for customer-funded wildfire self-insurance and is reflected in "Other long-term assets" on Edison International's and SCE's consolidated balance sheets. See Note 12 for further information. 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 which 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 increase in the provision of uncollectible accounts and write-offs for the year ended December 31, 2024, is driven primarily by consumer protection programs. The following table sets forth the changes in allowance for uncollectible accounts for SCE: (in millions) Customers All others Total Balance at December 31, 2021 $ 293 $ 16 $ 309 Current period provision for uncollectible accounts 1 111 11 122 Write-offs, net of recoveries (70) (7) (77) Balance at December 31, 2022 $ 334 $ 20 $ 354 Current period provision for uncollectible accounts 1 109 6 115 Write-offs, net of recoveries (96) (9) (105) Balance at December 31, 2023² $ 347 $ 17 $ 364 Current period provision for uncollectible accounts 1 278 12 290 Write-offs, net of recoveries (253) (11) (264) Balance at December 31, 2024² $ 372 $ 18 $ 390 1 This includes $222 million, $78 million, and $40 million of incremental costs for the years ended December 31, 2024, 2023, and 2022, respectively, which were probable of recovery from customers and recorded as regulatory assets. 2 Approximately $43 million and $4 million of allowance for uncollectible accounts are included in "Other long-term assets" on SCE's consolidated balance sheets as of December 31, 2024 and 2023 respectively. Inventory SCE's inventory is primarily composed of materials, supplies and spare parts, and generally stated at weighted average cost or net realizable value when appropriate. Emission Allowances and Energy Credits SCE is allocated GHG allowances annually which it is then required to sell into quarterly auctions. GHG proceeds from the auctions are recorded as a regulatory liability to be refunded to customers. SCE purchases GHG allowances in quarterly auctions or from counterparties to satisfy its GHG emission compliance obligations and recovers such costs of GHG allowances from customers. GHG allowances held for use are classified as "Other current assets" on the consolidated balance sheets and are stated, similar to an inventory method, at the lower of weighted average cost or market. SCE will evaluate GHG allowances for impairment upon a triggering event that would indicate SCE might not recover the full cost of an allowance. SCE had GHG allowances held for use of $66 million and $128 million at December 31, 2024 and 2023, respectively. GHG emission obligations were $22 million and $117 million at December 31, 2024 and 2023, respectively, and are classified as "Other current liabilities" on the consolidated balance sheets. SCE is allocated low carbon fuel standard ("LCFS") credits which it sells to market participants. Proceeds from the sales, net of selling fees and program administration expenses, are recorded in a balancing account to be refunded to eligible customers. SCE's net proceeds from the sale of these LCFS credits were $243 million and $248 million at December 31, 2024 and 2023, respectively. LCFS credits are classified as "Regulatory liabilities" on the consolidated balance sheets. Property, Plant and Equipment SCE plant additions, including replacements and betterments, are capitalized. Direct material and labor and indirect costs such as construction overhead, administrative and general costs, employee benefits, and property taxes are capitalized as part of plant additions. The CPUC authorizes a capitalization rate for each of the indirect costs which are allocated to each project based on either labor or total costs. Estimated useful lives authorized by the CPUC in the 2021 GRC and weighted average useful lives of SCE's property, plant and equipment, are as follows: Estimated Useful Lives Weighted Average Generation plant 10 years to 54 years 39 years Distribution plant 20 years to 67 years 50 years Transmission plant 30 years to 65 years 53 years General plant and other 5 years to 60 years 19 years Depreciation of utility property, plant and equipment is computed on a straight-line, remaining-life basis. SCE's depreciation expense was $2.8 billion, $2.5 billion and $2.5 billion for 2024, 2023 and 2022, respectively. Depreciation expense stated as a percentage of average original cost of depreciable utility plant was, on a composite basis, 4.3%, 4.1% and 4.2% for 2024, 2023 and 2022, respectively. The original costs of retired property are charged to accumulated depreciation. See Note 2 for further information. Nuclear fuel for Palo Verde is recorded as utility plant (nuclear fuel in the fabrication and installation phase is recorded as construction in progress) in accordance with CPUC ratemaking procedures. Palo Verde nuclear fuel is amortized using the units of production method. Allowance for funds used during construction ("AFUDC") represents the estimated cost of debt and equity funds that finance utility-plant construction and is capitalized during certain plant construction. AFUDC is recovered in rates through depreciation expense over the useful life of the related asset. Equity AFUDC represents a method to compensate SCE for the estimated cost of equity used to finance utility plant additions and is recorded as part of construction in progress. The following table summarizes SCE's AFUDC related to debt and equity: Years ended December 31, (in millions) 2024 2023 2022 Debt AFUDC 1 $ 82 $ 74 $ 53 Equity AFUDC 2 187 157 137 1 Reflected as a reduction of "Interest expense" on the consolidated statements of income. 2 Reflected in "Other income" on the consolidated statements of income. Major Maintenance Major maintenance costs for SCE's facilities and equipment are expensed as incurred. Impairment of Long-Lived Assets Impairments of long-lived assets are evaluated based on a review of estimated future cash flows expected to be generated whenever events or changes in circumstances indicate that the carrying amount of such investments or assets may not be recoverable. If the carrying amount of a long-lived asset exceeds expected future cash flows, undiscounted and without interest charges, an impairment loss is recognized in the amount of the excess of fair value over the carrying amount. Fair value is determined via market, cost and income-based valuation techniques, as appropriate. Accounting principles for rate-regulated enterprises also require recognition of an impairment loss if it becomes probable that the regulated utility will abandon a plant investment, or if it becomes probable that the cost of a recently completed plant will be disallowed, either directly or indirectly, for ratemaking purposes, and a reasonable estimate of the disallowance amount can be made. Upon approval of the TKM Settlement Agreement, SCE will record an impairment charge of approximately $10 million in the first quarter of 2025. For further information on the TKM Settlement Agreement, see "Note 12. Commitments and Contingencies—Contingencies—Southern California Wildfires and Mudslides." Initial and annual contributions to the wildfire insurance fund established pursuant to California Assembly Bill 1054 (the "Wildfire Insurance Fund" and "AB 1054") Edison International and SCE accounted for the contributions to the Wildfire Insurance Fund similarly to prepaid insurance. No period of coverage was provided in AB 1054, therefore expense is being allocated to periods ratably based on an estimated period of coverage. At December 31, 2024 and 2023, Edison International and SCE had a $1.9 billion and a $2.0 billion long-term asset, respectively, as well as a $138 million and $204 million current asset, respectively, reflected as "Wildfire Insurance Fund contributions" in their consolidated balance sheets for the initial $2.4 billion contribution made during 2019 and the present value of annual contributions SCE committed to make to the Wildfire Insurance Fund, reduced by amortization. At December 31, 2024 and 2023, long-term liabilities of $363 million and $450 million, respectively, have been reflected in "Other deferred credits and other long-term liabilities" for the present value of unpaid contributions. Contributions were discounted to the present value using US treasury interest rates at the date SCE committed to participate in the Wildfire Insurance Fund. Edison International and SCE reassesses the period of coverage of the fund at least annually in the first quarter each year, and adjustments are applied on a prospective basis. At December 31, 2024, 2023 and 2022, the asset was amortized based on an estimated period of coverage of 20 years, 15 years, and 15 years, respectively. All expenses related to the contributions are being reflected in "Wildfire Insurance Fund Expense" in the consolidated statements of income. Changes in the estimated period of coverage provided by the Wildfire Insurance Fund could lead to material changes in future expense recognition. In estimating the period of coverage, Edison International and SCE used Monte Carlo simulations based on historical data from wildfires caused by electrical utility equipment to estimate expected losses, using ten years (2014 – 2023) of available historical data in 2024, nine years (2014 – 2022) of available historical data in 2023, and eight years (2014 – 2021) of available historical data in 2022. The details of the operation of the Wildfire Insurance Fund and estimates related to claims by SCE, PG&E, and SDG&E against the fund have been applied to the expected loss simulations to estimate the period of coverage of the fund. The most sensitive inputs to the estimated period of coverage are the expected frequency of wildfire events caused by investor-owned utility electrical equipment and the estimated costs associated with those forecasted events. These inputs are most affected by the historical data used in estimating expected losses. There were fires in the service area of SCE, PG&E and SDG&E since the inception of the Wildfire Insurance Fund, including fires for which the cause is unknown, which may in the future be determined to be covered by the Wildfire Insurance Fund and have not been reflected or estimated in this analysis will be included in this analysis at that time. As of the date of this filing, SCE is continuing to perform its annual assessment for 2025 to reassess its estimate of the life of the Wildfire Insurance Fund. Edison International and SCE assess the Wildfire Insurance Fund contribution assets for impairment each reporting period. An impairment will be recorded if the recorded asset exceeds SCE's ability to benefit from the remaining coverage provided by the Wildfire Insurance Fund. Nuclear Decommissioning and Asset Retirement Obligations The fair value of a liability for an ARO is recorded in the period in which it is incurred, including a liability for the fair value of a conditional ARO, if the fair value can be reasonably estimated even though uncertainty exists about the timing and/or method of settlement. When an ARO liability is initially recorded, SCE capitalizes the cost by increasing the carrying amount of the related long-lived asset. For each subsequent period, the liability is increased for accretion expense and the capitalized cost is depreciated over the useful life of the related asset. SCE has not recorded an ARO for assets that are expected to operate indefinitely or where SCE cannot estimate a settlement date (or range of potential settlement dates). As such, ARO liabilities are not recorded for certain retirement activities, including certain hydroelectric facilities. The following table summarizes the changes in SCE's ARO liability: December 31, (in millions) 2024 2023 Beginning balance $ 2,666 $ 2,754 Accretion 1 137 144 Revisions (2) (3) Liabilities settled (221) (229) Ending balance $ 2,580 $ 2,666 1 An ARO represents the present value of a future obligation. Accretion is an increase in the liability to account for the time value of money resulting from discounting. AROs related to decommissioning of SCE's nuclear power facilities are based on site-specific studies conducted as part of each NDCTP conducted before the CPUC. ARO are revised when updated site-specific decommissioning cost estimates are available. The ARO for decommissioning SCE's San Onofre and Palo Verde nuclear power facilities was $2.1 billion as of December 31, 2024. The liability to decommission SCE's nuclear power facilities is based on a 2024 decommissioning study, filed as part of the 2024 NDCTP, for San Onofre Unit 1, 2, and 3 and a 2023 decommissioning study for Palo Verde. Decommissioning of San Onofre Unit 1 began in 1999 and the transfer of spent nuclear fuel from Unit 1 to dry cask storage in the Independent Spent Fuel Storage Installation ("ISFSI") 1 was completed in 2005. Major decommissioning work for Unit 1 has been completed except for certain underground work. Decommissioning of San Onofre Units 2 and 3 began in June 2013 and the transfer of spent nuclear fuel from San Onofre Units 2 and 3 to dry cask storage in the two ISFSIs was completed in August 2020. In August 2020, SCE commenced, and is currently conducting major decommissioning activities in accordance with the terms of the Coastal Developmental Permit for San Onofre Units 2 and 3. Due to regulatory recovery of SCE's nuclear decommissioning expense, prudently incurred costs for nuclear decommissioning activities do not affect SCE's earnings. Through the ratemaking process, SCE has substantially collected in rates, as a component of depreciation expense, all amounts for the future decommissioning of its nuclear assets and has placed those amounts in independent trusts. Amounts collected in rates in excess of the ARO liability are classified as ARO regulatory liabilities. See Note 11 for further information. Amortization of the ARO asset (included within the unamortized nuclear investment) and accretion of the ARO liability are deferred as decreases to the ARO regulatory liability account, resulting in no impact on earnings. Changes in the estimated costs, timing of decommissioning or the assumptions underlying these estimates could cause material revisions to the estimated total cost to decommission. SCE currently estimates that it will spend approximately $7.6 billion through 2098 to decommission its nuclear facilities. This estimate is based on SCE's decommissioning cost methodology used for ratemaking purposes, escalated at rates ranging from 2.1% to 7.5% (depending on the cost element) annually. These costs are expected to be funded from independent decommissioning trusts. SCE estimates annual after-tax earnings on the decommissioning funds of 3.6% to 5.7% dependent on asset class. If the estimated costs increase, the assumed return on trust assets is not earned, or costs escalate at higher rates, SCE expects that additional funds needed for decommissioning will be recoverable through future rates, subject to a reasonableness review. See Note 10 for further information. SCE's nuclear decommissioning costs are subject to CPUC review through the triennial regulatory proceedings. SCE's nuclear decommissioning trust investments primarily consist of fixed income investments that are classified as available-for-sale and equity investments. Due to regulatory mechanisms, investment earnings and realized gains and losses have no impact on earnings. Unrealized gains and losses on decommissioning trust funds, including impairment, increase or decrease the trust assets and the related regulatory asset or liability and have no impact on electric utility revenue or decommissioning expense. SCE reviews each fixed income security for impairment on the last day of each month. If the fair value on the last day of the month is less than the amortized cost for that security, SCE impairs the disclosed amortized cost. If the fair value is greater or less than the carrying value for that security at the time of sale, SCE recognizes a related realized gain or loss, respectively. Deferred Financing Costs Debt premium, discount, and issuance expenses incurred in connection with obtaining financing are deferred and amortized over the life of each debt issue. These deferred amounts are recorded as an offset to long-term debt. See Note 5 for further details. Under CPUC ratemaking procedures, SCE's debt reacquisition expenses are amortized over the remaining life of the reacquired debt, or if refinanced, the life of the new debt. The unamortized losses on reacquired debt are reflected as long-term "Regulatory assets" in the consolidated balance sheets. See Note 11 for further details. Amortization of deferred financing costs charged to interest expense is as follows: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Amortization of deferred financing costs charged to interest expense $ 41 $ 39 $ 37 $ 34 $ 32 $ 31 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. SCE's Revenue from Contracts with Customers Provision of Electricity SCE principally generates revenue through supplying and delivering electricity to its customers. Rates charged to customers are based on tariff rates, approved by the CPUC and FERC. Starting with SCE's 2021 GRC, revenue is authorized through quadrennial GRC proceedings, which are intended to provide SCE a reasonable opportunity to recover its costs and earn a return on its CPUC-jurisdictional rate base. The CPUC sets an annual revenue requirement for the base year and the remaining three years are set by a methodology established in the GRC proceeding. As described above, SCE also earns revenue, with no return, to recover costs for power procurement, certain wildfire related expenses and other activities. Revenue is authorized by the FERC through a formula rate which is intended to provide SCE a reasonable opportunity to recover transmission capital and operating costs that are prudently incurred, including a return on its FERC-jurisdictional rate base. Under the operation of the formula rate, transmission revenue is updated to actual cost of service annually. For SCE's electricity sales for both residential and non-residential customers, SCE satisfies the performance obligation of delivering electricity over time as the customers simultaneously receive and consume the delivered electricity. Energy sales are typically on a month-to-month implied contract for transmission, distribution and generation services. Revenue is recognized over time as the energy is supplied and delivered to customers and the respective revenue is billed and paid on a monthly basis. CPUC and FERC rates decouple authorized revenue from the volume of electricity sales and the price of energy procured so that SCE has the opportunity to receive revenue equal to amounts authorized by the relevant regulatory agencies. As a result, the volume of electricity sold does not have a direct impact on SCE's financial results. See Note 7 for further information on SCE's revenue. Sales and Use Taxes SCE bills certain sales and use taxes levied by state or local governments to its customers. Included in these sales and use taxes are franchise fees, which SCE pays to various municipalities (based on contracts with these municipalities) in order to operate within the limits of the municipality. SCE bills these franchise fees to its customers based on a CPUC-authorized rate. These franchise fees, which are required to be paid regardless of SCE's ability to collect from the customer, are accounted for on a gross basis. SCE's franchise fees billed to customers were $183 million, $168 million, and $172 million for the years ended December 31, 2024, 2023, and 2022, respectively. When SCE acts as an agent for sales and use tax, the taxes are accounted for on a net basis. Amounts billed to and collected from customers for these taxes are remitted to the taxing authorities and are not recognized as electric utility revenue. SCE's Alternative Revenue Programs The CPUC and FERC have authorized additional, alternative revenue programs which adjust billings for the effects of broad external factors or provide for additional billings if the utility achieves certain objectives. These alternative revenue programs allow SCE to recover costs that SCE has been authorized to pass on to customers, including costs of certain capital and operations and maintenance activities, costs to purchase electricity and natural gas, and to fund public purpose, demand response, and customer energy efficiency programs, and earn a reasonable return. In general, revenue is recognized for these alternative revenue programs at the time the costs are incurred, or at the time when specific events permitting billing of the additional revenues have been completed. SCE begins recognizing revenues for these programs when a program has been established by an order from either the CPUC or FERC that allows for automatic adjustment of future rates, the amount of revenue for the period is objectively determinable and probable of recovery and the revenue will be collected within 24 months following the end of the annual period. Power Purchase Agreements SCE enters into power purchase agreements ("PPAs") in the normal course of business. A power purchase agreement may be considered a variable interest in a variable interest entity ("VIE"). If SCE is the primary beneficiary in the VIE, SCE is required to consolidate the VIE. None of SCE's PPAs resulted in consolidation at December 31, 2024 and 2023. See Note 3 for further discussion of PPAs that are considered variable interests. A PPA may also contain a lease for accounting purposes. See "Leases" below and Note 12 and Note 13 for further discussion of SCE's PPAs. A PPA that does not contain a lease may be classified as a derivative which is recorded at fair value on the consolidated balance sheets, unless the PPA is eligible for an election to designate as a normal purchase or sale, which is accounted for on an accrual basis as an executory contract. PPAs that do not meet the above classifications are accounted for on an accrual basis. Derivative Instruments SCE records derivative instruments on its consolidated balance sheets as either assets or liabilities measured at fair value unless otherwise exempted from derivative treatment as normal purchases or sales. The normal purchases and sales exception requires, among other things, physical delivery in quantities expected to be used or sold over a reasonable period in the normal course of business. Realized gains and losses from SCE's derivative instruments are expected to be recovered from or refunded to customers through regulatory mechanisms and, therefore, SCE's fair value changes have no impact on purchased power expense or earnings. SCE does not use hedge accounting for derivative transactions due to regulatory accounting treatment. Where SCE's derivative instruments are subject to a master netting agreement and certain criteria are met, SCE presents its derivative assets and liabilities on a net basis on its consolidated balance sheets. In addition, derivative positions are offset against margin and cash collateral deposits. The results of derivative activities are recorded as part of cash flows from operating activities on the consolidated statements of cash flows. See Note 6 for further information on derivative instruments. Leases A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified assets for a period of time in exchange for consideration. An entity controls the use when it has a right to obtain substantially all of the benefits from the use of the asset and has the right to direct the use. SCE determines if an arrangement is a lease at contract inception. For all classes of underlying assets, except battery storage assets where each component is separately accounted for, SCE accounts for lease and non-lease components as a single lease component. Lease liabilities are recognized based on the present value of the lease payments over the lease term at the commencement date. SCE calculates and uses the rate implicit in the lease if the information is readily available or if not available, SCE uses its incremental borrowing rate in determining the present value of lease payments. Incremental borrowing rates are comprised of underlying risk-free rates and secured credit spreads relative to first mortgage bonds with like tenors of lease term durations. Lease right-of-use ("ROU") assets are based on the liability, subject to adjustments, such as lease incentives. The ROU assets also include any lease payments made at or before the commencement date. SCE excludes variable lease payments in measuring lease assets and lease liabilities. SCE's lease terms include options to extend or terminate the lease when it is reasonably certain that such options will be exercised. SCE elected to exclude from the balance sheet short-term leases of one year or less. SCE enters into power purchase agreements that may contain leases. This occurs when a power purchase agreement designates a specific power plant, SCE obtains substantially all

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment SCE's utility property, plant and equipment included in the consolidated balance sheets is composed of the following: December 31, (in millions) 2024 2023 Distribution $ 37,093 $ 34,573 Transmission 19,189 18,526 Generation 4,217 3,593 General plant and other 7,046 6,383 Accumulated depreciation (14,207) (12,910) 53,338 50,165 Construction work in progress 5,585 5,590 Nuclear fuel, at amortized cost 124 122 Total utility property, plant and equipment $ 59,047 $ 55,877 Capitalized Software Costs SCE capitalizes costs incurred during the application development stage of internal use software projects to property, plant and equipment. SCE amortizes capitalized software costs ratably over their useful lives, primarily 5 and 7 year lives, commencing upon operational use. Capitalized software costs, included in general plant and other above, was $2.5 billion and $2.1 billion at December 31, 2024 and 2023, respectively, and accumulated amortization was $1.1 billion and $0.9 billion, at December 31, 2024 and 2023, respectively. Amortization expense for capitalized software was $416 million, $358 million, and $344 million in 2024, 2023, and 2022, respectively. At December 31, 2024, amortization expense is estimated to be $428 million, $371 million, $288 million, $186 million, and $72 million for 2025 through 2029, respectively. Jointly Owned Utility Projects SCE owns undivided interests in transmission and generating assets for which each participant provides its own financing. SCE's proportionate share of these assets is reflected in the consolidated balance sheets and included in the above table. SCE's proportionate share of expenses for each project is reflected in the consolidated statements of income. The following is SCE's investment in each asset as of December 31, 2024: (in millions) Plant in Construction Accumulated Nuclear Fuel Total Ownership Transmission systems: Eldorado $ 448 $ 40 $ (71) $ — $ 417 71 % Pacific Intertie 356 8 (121) — 243 50 % Generating station: Palo Verde (nuclear) 2,249 62 (1,694) 124 741 16 % Total $ 3,053 $ 110 $ (1,886) $ 124 $ 1,401 In addition to the jointly owned assets in the table above, SCE has ownership interests in jointly owned power poles with other companies.

Variable Interest Entities

Variable Interest Entities	12 Months Ended
	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	Variable Interest Entities A VIE is defined as a legal entity that meets any of the following conditions: (1) the total equity investment at risk is not sufficient to fund the entity's activities without additional subordinated financial support, (2) the equity holders as a group, lack any of the following characteristics: the power to direct activities that most significantly impact the entity's economic performance, substantive voting 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. Variable Interest in VIEs that are Consolidated SCE Recovery Funding LLC is a bankruptcy remote, wholly owned special purpose subsidiary of SCE, formed for the purpose of issuing securitized bonds related to SCE's AB 1054 Excluded Capital Expenditures. This entity is a VIE because its equity investment is insufficient to support its operations. The most significant activity of SCE Recovery Funding LLC is to service the securitized bonds according to the decisions made by SCE. Therefore, SCE is determined to be the primary beneficiary and consolidates SCE Recovery Funding LLC. SCE Recovery Funding LLC 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 area ("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. December 31, (in millions) 2024 2023 Other current assets $ 49 $ 53 Regulatory assets: non-current 1,512 1,558 Regulatory liabilities: current 30 34 Current portion of long-term debt 1 49 47 Other current liabilities 6 6 Long-term debt 1 1,468 1,515 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 certain PPAs where the counterparty entities meet one or both of the VIE conditions discussed above and in which SCE has variable interests, including: agreements through which SCE provides natural gas to fuel the plants, fixed price contracts for renewable energy, and resource adequacy agreements that allow purchase of energy at fixed prices upon the seller's election. Since payments for capacity are the primary source of income, the most significant economic activity for these VIEs is typically the operation and maintenance of the power plants, which SCE does not perform. Therefore, SCE has concluded that it is not the primary beneficiary of any of these VIEs because it does not control the commercial and operating activities that most significantly impact the economic performance of these entities. 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. 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 5,200 MW and 3,343 MW at December 31, 2024 and 2023, respectively, and the amounts that SCE paid to these projects were $778 million and $528 million for the years ended December 31, 2024 and 2023, respectively. These amounts are recoverable in customer rates, subject to a reasonableness review.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements 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 December 31, 2024 and 2023, nonperformance risk was not material for Edison International or 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 consists of 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: December 31, 2024 (in millions) Level 1 Level 2 Level 3 Netting and Collateral 1 Total Assets at fair value Derivative contracts $ — $ 1 $ 212 $ (1) $ 212 Other — 22 — — 22 Nuclear decommissioning trusts: Stocks 2 1,631 — — — 1,631 Fixed Income 3 975 1,618 — — 2,593 Short-term investments, primarily cash equivalents 128 39 — — 167 Subtotal of nuclear decommissioning trusts 4 2,734 1,657 — — 4,391 Total assets 2,734 1,680 212 (1) 4,625 Liabilities at fair value Derivative contracts — 47 — (47) — Total liabilities — 47 — (47) — Net assets $ 2,734 $ 1,633 $ 212 $ 46 $ 4,625 December 31, 2023 (in millions) Level 1 Level 2 Level 3 Netting and Collateral 1 Total Assets at fair value Derivative contracts $ — $ 3 $ 91 $ (3) $ 91 Money market funds and other 78 22 — — 100 Nuclear decommissioning trusts: Stocks 2 1,658 — — — 1,658 Fixed Income 3 923 1,421 — — 2,344 Short-term investments, primarily cash equivalents 169 104 — — 273 Subtotal of nuclear decommissioning trusts 4 2,750 1,525 — — 4,275 Total assets 2,828 1,550 91 (3) 4,466 Liabilities at fair value Derivative contracts — 77 — (77) — Total liabilities — 77 — (77) — Net assets $ 2,828 $ 1,473 $ 91 $ 74 $ 4,466 1 Represents the netting of assets and liabilities under master netting agreements and cash collateral. 2 Approximately 75% of SCE's equity investments were in companies located in the United States at December 31, 2024 and 2023. 3 Includes corporate bonds, which were diversified by the inclusion of collateralized mortgage obligations and other asset backed securities of $94 million and $106 million at December 31, 2024 and 2023, respectively. 4 Excludes net payables of $105 million and $102 million at December 31, 2024 and 2023, 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: Years ended December 31, (in millions) 2024 2023 Fair value of net assets at beginning of period $ 91 $ 63 Sales (1) (1) Settlements 14 (40) Total realized/unrealized gains, net of losses 1 108 69 Fair value of net assets at end of period $ 212 $ 91 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 2024 and 2023. The following table sets forth the significant unobservable inputs used to determine fair value for Level 3 CRR assets and liabilities: Fair Value Significant Range Weighted Assets Liabilities December 31, 2024 $ 212 $ — CAISO CRR auction prices $(4.64) - $50,048.16 $ 27.20 December 31, 2023 91 — CAISO CRR auction prices (6.44) - 16,574.36 2.74 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. The fair value of these financial instruments is based on evaluated prices that reflect significant observable market information such as reported trades, actual trade information of similar securities, benchmark yields, broker/dealer quotes, issuer spreads, bids, offers and relevant credit information. There are no securities classified as Level 3 in the nuclear decommissioning trusts. SCE's investment policies and CPUC requirements place limitations on the types and investment grade ratings of the securities that may be held by the nuclear decommissioning trust funds. These policies restrict the trust from holding alternative investments and limit the trust funds' exposures to investments in highly illiquid markets. With respect to equity and fixed income securities, the trustee obtains prices from third-party pricing services which SCE is able to independently corroborate as described below. The trustee monitors prices supplied by pricing services, including reviewing prices against defined parameters' tolerances and performs research and resolves variances beyond the set parameters. SCE corroborates the fair values of securities by comparison to other market-based price sources obtained by SCE's investment managers. Differences outside established thresholds are followed-up with the trustee and resolved. For each reporting period, SCE reviews the trustee determined fair value hierarchy and overrides the trustee level classification when appropriate. See Note 10 for more information on 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 $101 million and $121 million at December 31, 2024 and 2023, respectively. Assets measured at fair value and classified as Level 2 were immaterial at December 31, 2024 and 2023. There were no securities classified as Level 3 for Edison International Parent and Other at December 31, 2024 and 2023. 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 current portion of long-term debt) are as follows: December 31, 2024 December 31, 2023 (in millions) Carrying Value 1 Fair Value 2 Carrying Value 1 Fair Value 2 Edison International $ 35,583 $ 33,160 $ 33,013 $ 31,315 SCE 30,515 27,994 28,494 26,712 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	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Debt and Credit Agreements	Note 5. Debt and Credit Agreements Long-Term Debt The following table summarizes long-term debt (rates and terms are as of December 31, 2024) of Edison International and SCE: December 31, (in millions) 2024 2023 Edison International Parent and Other: Debentures and notes: 2025 – 2054 (4.125% to 8.125%) $ 5,100 $ 4,550 Current portion of long-term debt (800) (500) Unamortized debt discount/premium and issuance costs, net (32) (31) Total Edison International Parent and Other 4,268 4,019 SCE: First and refunding mortgage bonds: 2025 – 2053 (1.20% to 6.05%) 27,400 24,700 Pollution-control bonds: 2028 – 2035 (1.45% to 4.50%) 752 752 Debentures and notes: 2029 – 2053 (5.06% to 6.65%) 306 306 Senior secured recovery bonds 1 : 2028 – 2047 (0.86% to 5.11%) 1,532 1,579 Other long-term debt 2 706 1,322 Current portion of long-term debt (1,249) (2,197) Unamortized debt discount/premium and issuance costs, net (181) (165) Total SCE 29,266 26,297 Total Edison International $ 33,534 $ 30,316 1 The senior secured recovery bonds are payable only from and secured by the Recovery Property at SCE Recovery Funding LLC, and do not constitute a debt or other legal obligation of, or interest in, SCE or any of its affiliates, except for SCE Recovery Funding LLC. For further details, see Note 3. 2 Subsequent to December 31, 2024 and 2023, SCE issued first and refunding mortgage bonds which were used to partially pay down its commercial paper balance. As a result, SCE included the paydown amount of $706 million and $722 million in other long-term debt at December 31, 2024 and 2023, respectively. The 2023 amount also includes a $600 million term loan with an interest rate of adjusted term secured overnight financing rate ("SOFR") plus 0.90% that matured in 2024. Edison International and SCE long-term debt maturities over the next five years are as follows: (in millions) Edison SCE 2025 $ 2,049 $ 1,249 2026 1,900 1,900 2027 2,501 1,901 2028 2,942 1,792 2029 3,363 2,313 Debt Financing Subsequent to December 31, 2024 In January 2025, SCE issued $850 million of 5.45% first and refunding mortgage bonds due in 2035 and $650 million of 5.90% first and refunding mortgage bonds due in 2055 . The proceeds were used to repay commercial paper borrowings and for general corporate purposes. Liens and Security Interests Almost all of SCE's properties are subject to a trust indenture lien. SCE has pledged first and refunding mortgage bonds as collateral for borrowed funds obtained from pollution-control bonds issued by government agencies. SCE has a debt covenant that requires a debt to total capitalization ratio to be less than or equal to 0.65 to 1. At December 31, 2024 , SCE's debt to total capitalization ratio was 0.58 to 1 and was in compliance with all other financial covenants that affect access to capital. Edison International Parent's credit facility requires a consolidated debt to total capitalization ratio as defined in the applicable agreements of less than or equal to 0.70 to 1. At December 31, 2024 , Edison International consolidated debt to total capitalization ratio was 0.65 to 1. Credit Agreements and Short-Term Debt The following table summarizes the status of the credit facilities at December 31, 2024: (in millions, except for rates) Borrower Termination Date SOFR plus (bps) Commitment Outstanding borrowings Outstanding letters of credit Amount available Edison International Parent 1, 3 May 2028 128 $ 1,500 $ 445 $ — $ 1,055 SCE 2, 3 May 2028 108 3,350 1,260 6 2,084 Total Edison International $ 4,850 $ 1,705 $ 6 $ 3,139 1 At December 31, 2024 and 2023, Edison International Parent had $444 million and $246 million outstanding commercial paper, net of discount of $1 million and zero, at a weighted-average interest rate of 4.86% and 5.82%, respectively. 2 At December 31, 2024 and 2023, SCE had $1,259 million and $1,554 million outstanding commercial paper, net of discount of $1 million and $4 million, at a weighted-average interest rate of 4.95% and 5.82%, respectively. This includes $706 million and $722 million, at December 31, 2024 and 2023, respectively, outstanding commercial paper reclassified from "Short-term debt" to "Long-term debt" on the consolidated balance sheets, due to subsequent debt refinancing. 3 The aggregate maximum principal amount under the Edison International Parent and SCE revolving credit facilities may be increased up to $2.0 billion and $4.0 billion, respectively, provided that additional lender commitments are obtained. In May 2024, Edison International Parent and SCE amended their credit facilities to extend the maturity date to May 2028, with additional one-year extension options. Uncommitted Letters of Credit SCE has 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. At December 31, 2024 , SCE had $118 million in standby letters of credit outstanding under these agreements, which expire between January and December 2025 . The unused capacity under these agreements was $507 million .

Derivative Instruments

Derivative Instruments	12 Months Ended
	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	Derivative Instruments Derivative financial instruments are used to manage exposure to commodity price risk resulting from SCE's electricity and natural gas procurement activities. The risks of fluctuating commodity prices 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. Certain power and gas contracts contain a provision that requires SCE to maintain an investment grade rating from the major credit rating agencies, 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 fair value of these derivative contracts and any related collateral were immaterial as of December 31, 2024 and 2023. 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. 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: December 31, 2024 (in millions) Derivative Assets Short-Term 1 Derivative Liabilities Short-Term 2 Commodity derivative contracts Gross amounts recognized $ 213 $ 47 Gross amounts offset in the consolidated balance sheets (1) (1) Cash collateral posted — (46) Net amounts presented in the consolidated balance sheets $ 212 $ — December 31, 2023 (in millions) Derivative Assets Short-Term 1 Derivative Liabilities Short-Term 2 Commodity derivative contracts Gross amounts recognized $ 94 $ 77 Gross amounts offset in the consolidated balance sheets (3) (3) Cash collateral posted — (74) Net amounts presented in the consolidated balance sheets $ 91 $ — 1 Included in "Other current assets" on SCE's consolidated balance sheets. 2 Included in "Other current liabilities" on SCE's consolidated balance sheets. At December 31, 2024, SCE posted $74 million of cash collateral, of which $46 million was offset against derivative liabilities and $28 million was reflected in "Other current assets" on the consolidated balance sheets. Financial Statement Impact of Derivative Instruments SCE recognizes realized gains and losses on derivative instruments as purchased power expense and unrealized gains and losses as regulatory assets or liabilities. Both realized and unrealized gains and losses are expected to be recovered from customers and therefore do not affect earnings. Cash flows from derivative activities, including cash collateral, 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: Years ended December 31, (in millions) 2024 2023 2022 Realized $ (409) $ (14) $ 178 Unrealized 149 (322) 310 Notional Volumes of Derivative Instruments The following table summarizes the notional volumes of derivatives used for SCE's economic hedging activities: Economic Hedges Unit of December 31, Commodity 2024 2023 Electricity options, swaps and forwards Gigawatt hours 3,295 3,494 Natural gas options, swaps and forwards Billion cubic feet 4 31 Congestion revenue rights Gigawatt hours 8,141 35,011

Revenue

Revenue	12 Months Ended
	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenue	Revenue The following table is a summary of SCE's revenue: Years ended December 31, (in millions) 2024 2023 2022 Revenue from contracts with customers Commercial $ 8,000 $ 7,333 $ 7,028 Residential 7,060 6,421 6,707 Other 3,335 3,266 3,025 Total revenue from contracts with customer 1 18,395 17,020 16,760 Alternative revenue program and other 2 (848) (745) 412 Total operating revenue $ 17,547 $ 16,275 $ 17,172 1 At December 31, 2024 and 2023, SCE's receivables related to contracts from customers were $2.9 billion and $2.5 billion, which included accrued unbilled revenue of $845 million and $741 million, respectively. 2 Includes differences between revenues from contracts with customers and authorized levels for certain CPUC and FERC revenues. Deferred Revenue As of December 31, 2024, SCE has deferred revenue of $354 million related to the sale of the use of transfer capability of West of Devers transmission line, of which $13 million and $341 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	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes Current and Deferred Taxes The components of income tax expense (benefit) by location of taxing jurisdiction are: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Current: Federal $ 1 $ — $ 2 $ 3 $ — $ — State 7 — 13 48 5 2 8 — 15 51 5 2 Deferred: Federal 59 101 (103) 118 149 (44) State (50) 7 (74) (49) 30 (67) 9 108 (177) 69 179 (111) Total $ 17 $ 108 $ (162) $ 120 $ 184 $ (109) The components of net accumulated deferred income tax liability are: Edison International SCE December 31, (in millions) 2024 2023 2024 2023 Deferred tax assets: Property $ 943 $ 894 $ 929 $ 877 Wildfire-related 1 254 356 251 354 Nuclear decommissioning trust assets in excess of nuclear ARO liability 373 380 373 380 Loss and credit carryforwards 2 3,703 3,486 2,242 2,103 Regulatory balances 610 626 610 626 Pension and postretirement benefits other than pensions, net 117 127 21 25 Leases 335 345 335 345 Other 177 159 167 147 Sub-total 6,512 6,373 4,928 4,857 Less: valuation allowance 3 17 17 — — Total 6,495 6,356 4,928 4,857 Deferred tax liabilities: Property 11,220 10,627 11,202 10,611 Regulatory balances 1,299 1,450 1,299 1,450 Nuclear decommissioning trust assets 373 380 373 380 Leases 335 345 335 345 Other 187 187 155 158 Total 13,414 12,989 13,364 12,944 Accumulated deferred income tax liability, net 4 $ 6,919 $ 6,633 $ 8,436 $ 8,087 1 Relates to estimated losses accrual for wildfire-related claims, net of expected recoveries from insurance and FERC customers, and contributions to the Wildfire Insurance Fund. For further information, see Note 12 and Note 1. 2 As of December 31, 2024, unrecognized tax benefits of $397 million and $327 million for Edison International and SCE, respectively, are presented net against the deferred tax asset for the loss and tax credit carryforwards. As of December 31, 2023, the unrecognized tax benefits netted against deferred tax assets and tax credit carryforwards were $363 million and $299 million for Edison International and SCE, respectively. 3 As of December 31, 2024 and 2023, Edison International has recorded $17 million valuation allowance on deferred tax assets. The $17 million valuation allowance is related to non-California state net operating loss carryforwards which are expected to expire before being utilized. 4 Included in "Deferred income taxes and credits" on the consolidated balance sheets. Net Operating Loss and Tax Credit Carryforwards The amounts of net operating loss and tax credit carryforwards (after-tax) are as follows: Edison International SCE December 31, 2024 (in millions) Loss Credit Loss Credit Expire in 2025 $ 7 $ — $ 7 $ — Expire between 2026 to 2029 28 — 12 — Expire between 2030 to 2044 1,719 699 786 290 No expiration date 1 1,623 24 1,448 26 Total $ 3,377 $ 723 $ 2,253 $ 316 1 Under the Tax Cut and Jobs Act signed into law on December 22, 2017 ("Tax Reform"), net operating losses generated after December 31, 2017 can carryforward indefinitely. Edison International consolidates for federal income tax purposes, but not for financial accounting purposes, a group of wind projects referred to as Capistrano Wind. The amount of net operating loss and tax credit carryforwards recognized as part of deferred income taxes includes $107 million and $106 million related to Capistrano Wind for 2024 and 2023, respectively. The tax attributes not utilized as of December 31, 2024 will be available for the Edison International consolidated group to utilize in the future. When the remaining Capistrano tax attributes are used in the future by Edison International, payments will be made to those entities under a tax allocation agreement. Under the tax allocation agreement, Edison International has recorded a corresponding liability as part of other long-term liabilities related to its obligation to make payments to Capistrano Wind when these tax benefits are realized. 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: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Income from operations before income taxes $ 1,563 $ 1,515 $ 662 $ 1,914 $ 1,781 $ 845 Provision for income tax at federal statutory rate of 21% 328 318 139 402 374 177 (Decrease) increase in income tax from: State tax, net of federal income tax effect (24) 3 (70) — 23 (57) Property-related (279) (205) (219) (279) (205) (219) Corporate-owned life insurance cash surrender value (9) (8) (9) (9) (8) (9) Other 1 — (3) 6 — (1) Total income tax expense (benefit) $ 17 $ 108 $ (162) $ 120 $ 184 $ (109) Effective tax rate 1.1 % 7.1 % (24.5) % 6.3 % 10.3 % (12.9) % 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. In the third quarter of 2024, SCE generated an investment tax credit of approximately $231 million, primarily from 200MW and 112.5MW utility owned storage projects. The tax benefits associated with these credits will be recognized and returned to customers as the credits are utilized. Under the Inflation Reduction Act of 2022, 15% corporate alternative minimum tax ("CAMT") is imposed on corporations with average adjusted financial statement income exceeding $1.0 billion over a specified 3-year period. Both Edison International and SCE are not subject to CAMT in 2024. Accounting for Uncertainty in Income Taxes Authoritative guidance related to accounting for uncertainty in income taxes requires an enterprise to recognize, in its financial statements, the best estimate of the impact of a tax position by determining if the weight of available evidence indicates it is more likely than not, based solely on the technical merits, that the position will be sustained upon examination. The guidance requires the disclosure of all unrecognized tax benefits, which includes both the reserves recorded for tax positions on filed tax returns and the unrecognized portion of affirmative claims. Unrecognized Tax Benefits The following table provides a reconciliation of unrecognized tax benefits: Edison International SCE (in millions) 2024 2023 2022 2024 2023 2022 Balance at January 1, $ 430 $ 646 $ 613 $ 418 $ 374 $ 340 Tax positions taken during the current year: Increases 66 65 54 66 65 54 Tax positions taken during a prior year: Increases 1 13 — — 4 — Decreases 1 (34) (294) (21) (27) (25) (20) Balance at December 31, $ 463 $ 430 $ 646 $ 457 $ 418 $ 374 1 The Edison International decrease in 2023 was mainly related to a write-off of a reserve for a claim related to the Edison Mission Energy bankruptcy. As of December 31, 2024, if recognized, $72 million of unrecognized tax benefits would impact Edison International's effective tax rate and $66 million of the unrecognized tax benefits would impact SCE's effective tax rate. Tax Disputes Tax years that remain open for examination by the Internal Revenue Service and Franchise Tax Board are 2021 – 2023 and 2013 – 2018 & 2020 - 2023, respectively. Accrued Interest and Penalties The total amount of accrued interest and penalties related to income tax liabilities are: Edison International SCE December 31, (in millions) 2024 2023 2024 2023 Accrued interest and penalties $ — $ — $ 36 $ 28 The net after-tax interest and penalties recognized in income tax (benefit) expense are: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Net after-tax interest and penalties tax expense $ — $ — $ — $ 7 $ 4 $ 2

Compensation and Benefit Plans

Compensation and Benefit Plans	12 Months Ended
	Dec. 31, 2024
Retirement Benefits [Abstract]
Compensation and Benefit Plans	Compensation and Benefit Plans Employee Savings Plan The 401(k) defined contribution savings plan is designed to supplement employees' retirement income. The employer contributions were as follows: Edison SCE (in millions) Years ended December 31, 2024 $ 136 $ 134 2023 121 119 2022 103 101 Pension Plans and Postretirement Benefits Other Than Pensions Pension Plans Noncontributory defined benefit pension plans (some with cash balance features) cover most employees meeting minimum service requirements. Employees hired by the participating companies on or after December 31, 2017 are no longer eligible to participate in the pension plan. In lieu of that, an additional non-contributory employer contribution is deposited into the Edison 401(k) Savings Plan. SCE recognizes pension expense for its nonexecutive plan as calculated by the actuarial method used for ratemaking. The expected contributions (all by the employer) for Edison International and SCE are approximately $44 million and $15 million, respectively, for the year ending December 31, 2025. The majority of annual contributions made by SCE to its pension plans are anticipated to be recovered through CPUC-approved regulatory mechanisms. The funded position of Edison International's pension is sensitive to changes in market conditions. Changes in overall interest rate levels significantly affect the company's liabilities, while assets held in the various trusts established to fund Edison International's pension are affected by movements in the equity and bond markets. Due to SCE's regulatory recovery treatment, unrealized losses equal to the unfunded status are recorded to a regulatory asset and unrealized gains equal to the funded status are recorded to a regulatory liability. See Note 11 for further information. Information on pension plan assets and benefit obligations is shown below. Edison International SCE Years ended December 31, (in millions) 2024 2023 2024 2023 Change in projected benefit obligation Projected benefit obligation at beginning of year $ 3,647 $ 3,524 $ 3,278 $ 3,159 Service cost 103 101 99 97 Interest cost 175 180 157 162 Actuarial (gain) loss (59) 96 (47) 82 Benefits paid (230) (254) (198) (222) Projected benefit obligation at end of year $ 3,636 $ 3,647 $ 3,289 $ 3,278 Change in plan assets Fair value of plan assets at beginning of year $ 3,609 $ 3,462 $ 3,415 $ 3,275 Actual return on plan assets 192 369 182 349 Employer contributions 37 32 17 13 Benefits paid (230) (254) (198) (222) Fair value of plan assets at end of year 3,608 3,609 3,416 3,415 (Underfunded)/Overfunded status at end of year $ (28) $ (38) $ 127 $ 137 Amounts recognized in the consolidated balance sheets consist of 1 : Long-term assets $ 166 $ 169 $ 137 $ 149 Current liabilities (27) (30) (1) (2) Long-term liabilities (167) (177) (9) (10) $ (28) $ (38) $ 127 $ 137 Amounts recognized in accumulated other comprehensive loss consist of: Net loss $ 8 $ 21 $ 13 $ 8 Amounts recognized as a regulatory liability (146) (159) (133) (159) Accumulated benefit obligation at end of year $ 3,508 $ 3,495 $ 3,172 $ 3,136 Pension plans with plan assets in excess of an accumulated benefit obligation: Projected benefit obligation 3,636 3,647 3,289 3,278 Accumulated benefit obligation 3,508 3,495 3,172 3,136 Fair value of plan assets 3,608 3,609 3,416 3,415 Weighted average assumptions used to determine obligations at end of year: Discount rate 5.56% 5.04% 5.56% 5.04% Rate of compensation increase 4.00% 4.00% 4.00% 4.00% 1 The SCE liability excludes a long-term payable due to Edison International Parent of $88 million and $94 million at December 31, 2024 and 2023, respectively, related to certain SCE postretirement benefit obligations transferred to Edison International Parent. For Edison International and SCE, respectively, the 2024 actuarial gains are primarily related to $159 million and $146 million from an increase of 52 basis points in the discount rate (from 5.04% as of December 31, 2023 to 5.56% as of December 31, 2024). For Edison International and SCE, respectively, the 2023 actuarial losses are primarily related to $96 million and $92 million in losses from a decrease of 32 basis points in the discount rate (from 5.36% as of December 31, 2022 to 5.04% as of December 31, 2023). Net periodic pension expense components are: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Service cost $ 103 $ 101 $ 120 $ 101 $ 99 $ 118 Non-service cost (benefit) Interest cost 175 180 111 162 166 101 Expected return on plan assets (232) (214) (227) (219) (202) (215) Settlement costs — — 4 — — 4 Amortization of prior service cost — — — — — — Amortization of net loss 4 3 5 2 2 2 Regulatory adjustment (23) (47) 6 (22) (47) 6 Total non-service benefit 1 (76) (78) (101) (77) (81) (102) Total expense $ 27 $ 23 $ 19 $ 24 $ 18 $ 16 1 Included in "Other income" on Edison International's and SCE's consolidated income statements. For further details, see Note 16. Other changes in pension plan assets and benefit obligations recognized in other comprehensive income: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Net (gain) loss $ (9) $ 6 $ (45) $ (2) $ 6 $ (24) Settlement charges — — (4) — — (4) Amortization of net gain (4) (2) (8) (2) (2) (5) Total (gain) loss recognized in other comprehensive income (13) 4 (57) (4) 4 (33) Total recognized in expense and other comprehensive income $ 14 $ 27 $ (38) $ 20 $ 22 $ (17) In accordance with authoritative guidance on rate-regulated enterprises, SCE records amortization of net gains and losses into regulatory assets and liabilities instead of charges and credits to other comprehensive income for the portion of SCE's postretirement benefit plans that are recoverable in utility rates. Edison International and SCE used the following weighted average assumptions to determine pension expense: Years ended December 31, 2024 2023 2022 Discount rate 5.04 % 5.36 % 2.75 % Rate of compensation increase 4.00 % 4.00 % 4.00 % Expected long-term return on plan assets 6.75 % 6.50 % 5.50 % Interest crediting rate for cash balance account 1 : Starting rate 5.54 % 5.86 % 3.12 % Ultimate rate 5.54 % 5.86 % 4.50 % Year ultimate rate is reached 2024 2023 2026 1 Edison International and SCE were using a graduated assumption for interest crediting rate for cash balance account, where current interest rate gradually increased to an ultimate rate at a certain year. Starting 2023, Edison International and SCE changed to use single interest crediting rate assumption to determine the pension expense for cash balance account. The following benefit payments, which reflect service rendered and expected future service, are expected to be paid: (in millions) Edison SCE 2025 $ 332 $ 291 2026 344 301 2027 338 304 2028 332 299 2029 324 294 2030 – 2034 1,496 1,370 PBOP(s) Employees hired prior to December 31, 2017 who retire at or after age 55 with at least 10 years of service may be eligible for postretirement healthcare benefits. Eligibility for a company contribution toward the cost of these benefits in retirement depends on a number of factors, including the employee's years of service, age, hire date, and retirement date. Employees hired on or after December 31, 2017 are no longer eligible for retiree healthcare benefits. In lieu of those benefits, Edison International will provide a health reimbursement account of $200 per month available only after meeting certain age and service year requirements. Under the terms of the Edison International Welfare Benefit Plan ("PBOP Plan"), each participating employer (Edison International or its participating subsidiaries) is responsible for the costs and expenses of PBOP Plan benefits with respect to its employees and former employees that exceed the participants' share of contributions. A participating employer may terminate the PBOP Plan benefits with respect to its employees and former employees, as may SCE (as PBOP Plan sponsor), and, accordingly, the participants' PBOP Plan benefits are not vested benefits. There are no expected contributions for PBOP benefits for the year ended December 31, 2025. Annual contributions related to SCE employees made to SCE plans are anticipated to be recovered through CPUC-approved regulatory mechanisms and are expected to be, at a minimum, equal to the total annual expense for these plans. SCE has three voluntary employees' beneficiary association trusts ("VEBA Trusts") that can only be used to pay for retiree health care benefits of SCE and its subsidiaries. Once funded into the VEBA Trusts, neither SCE nor Edison International can subsequently recover the remaining amounts in the VEBA Trusts. Participants of the PBOP Plan do not have a beneficial interest in the VEBA Trusts. The VEBA Trust assets are sensitive to changes in market conditions. Changes in overall interest rate levels significantly affect the company's liabilities, while assets held in the various trusts established to fund Edison International's other postretirement benefits are affected by movements in the equity and bond markets. Due to SCE's regulatory recovery treatment, the funded status is offset by a regulatory liability. Information on PBOP Plan assets and benefit obligations is shown below: Edison International SCE Years ended December 31, (in millions) 2024 2023 2024 2023 Change in benefit obligation Benefit obligation at beginning of year $ 773 $ 1,331 $ 769 $ 1,323 Service cost 14 20 14 20 Interest cost 38 67 38 67 Change in plan provisions 23 — 23 — Actuarial gain (34) (567) (34) (563) Plan participants' contributions 26 28 26 28 Benefits paid (99) (106) (99) (106) Benefit obligation at end of year $ 741 $ 773 $ 737 $ 769 Change in plan assets Fair value of plan assets at beginning of year $ 2,275 $ 2,187 $ 2,275 $ 2,187 Actual return on assets 78 162 78 162 Employer contributions 1 4 1 4 Plan participants' contributions 26 28 26 28 Benefits paid (99) (106) (99) (106) Fair value of plan assets at end of year 2,281 2,275 2,281 2,275 Overfunded status at end of year $ 1,540 $ 1,502 $ 1,544 $ 1,506 Amounts recognized in the consolidated balance sheets consist of: Long-term assets $ 1,544 $ 1,506 $ 1,544 $ 1,506 Current liabilities (1) — — — Long-term liabilities (3) (4) — — $ 1,540 $ 1,502 $ 1,544 $ 1,506 Amounts recognized in accumulated other comprehensive loss consist of: Net gain $ (4) $ (5) $ — $ — Amounts recognized as a regulatory liability (1,544) (1,505) (1,544) (1,505) Weighted average assumptions used to determine obligations at end of year: Discount rate 5.60 % 5.06 % 5.60 % 5.06 % Assumed health care cost trend rates: Rate assumed for following year 6.25 % 6.50 % 6.25 % 6.50 % Ultimate rate 5.00 % 5.00 % 5.00 % 5.00 % Year ultimate rate reached 2029 2029 2029 2029 For both Edison International and SCE, the 2024 actuarial gains are primarily related to $41 million in gains from the change in discount rate. For Edison International and SCE, the 2023 actuarial gains are primarily related to $553 million and $550 million in gains from the change in postretirement medical carrier and retiree medical delivery mechanism effective in 2024, respectively. Net periodic PBOP expense components are: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Service cost $ 14 $ 20 $ 34 $ 14 $ 20 $ 34 Non-service cost (benefit) Interest cost 38 67 56 38 67 55 Expected return on plan assets (113) (107) (97) (113) (107) (97) Amortization of prior service cost (1) (1) (2) (1) (1) (2) Amortization of net gain (95) (50) (45) (95) (50) (45) Regulatory adjustment 157 71 55 157 71 55 Total non-service benefit 1 (14) (20) (33) (14) (20) (34) Total expense $ — $ — $ 1 $ — $ — $ — 1 Included in "Other income" on Edison International's and SCE's consolidated income statements. For further details, see Note 16. In accordance with authoritative guidance on rate-regulated enterprises, SCE records amortization of net gains and losses to regulatory assets and liabilities instead of charges and credits to other comprehensive income (loss) for the portion of SCE's postretirement benefit plans that are recoverable in utility rates. Edison International and SCE used the following weighted average assumptions to determine PBOP expense: Years ended December 31, 2024 2023 2022 Discount rate 5.06% 5.43% 2.95% Expected long-term return on plan assets 4.88% 5.00% 3.50% Assumed health care cost trend rates: Current year 6.50% 6.75% 6.25% Ultimate rate 5.00% 5.00% 5.00% Year ultimate rate reached 2029 2029 2029 The following benefit payments (net of plan participants' contributions) are expected to be paid: (in millions) Edison SCE 2025 $ 49 $ 48 2026 50 50 2027 54 54 2028 55 54 2029 55 55 2030 – 2034 282 281 Plan Assets Description of Pension and Postretirement Benefits Other than Pensions Investment Strategies The investment of plan assets is overseen by a fiduciary investment committee. Plan assets are invested using a combination of asset classes and may have active and passive investment strategies within asset classes. Target allocations for 2024 pension plan assets were 17.3% for U.S. equities, 9.7% for non-U.S. equities, 55% for fixed income and 18% for opportunistic and/or alternative investments. Target allocations for 2024 PBOP plan assets (except for Represented VEBA which is 95% for fixed income and 5% for U.S. and non-U.S. equities) are 29% for U.S. and non-U.S. equities, 65% for fixed income and 6% for opportunistic and/or alternative investments. Edison International employs multiple investment management firms. Investment managers within each asset class cover a range of investment styles and approaches. Risk is managed through diversification among multiple asset classes, managers, styles and securities. Plan asset classes and individual manager performances are measured against targets. Edison International also monitors the stability of its investment managers' organizations. Allowable investment types under CPUC investment guidelines include: • United States equities: common and preferred stocks of large, medium, and small companies which are predominantly United States-based. • Non-United States equities: equity securities issued by companies domiciled outside the United States and in depository receipts which represent ownership of securities of non-United States companies. • Fixed income: fixed income securities issued or guaranteed by the United States government, non-United States governments, government agencies and instrumentalities including municipal bonds, mortgage backed securities and corporate debt obligations. A portion of the fixed income positions may be held in debt securities that are below investment grade. • Opportunistic, alternative and other investments: Opportunistic investments in short to intermediate term market opportunities. Investments may have fixed income and/or equity characteristics and may be either liquid or illiquid. Alternative investments are limited partnerships that invest in non-publicly traded entities. Other investments are diversified among multiple asset classes such as global equity, fixed income currency and commodities markets. Investments are made in liquid or illiquid instruments within and across markets. The investment returns are expected to approximate the plans' expected investment returns. Asset class portfolio weights are permitted to range within plus or minus 5%. Where approved by the fiduciary investment committee, futures contracts are used for portfolio rebalancing and to reallocate portfolio cash positions. Where authorized, a few of the plans' investment managers employ limited use of derivatives, including futures contracts, options, options on futures and interest rate swaps in place of direct investment in securities to gain efficient exposure to markets. Derivatives are not used to leverage the plans or any portfolios. Determination of the Expected Long-Term Rate of Return on Assets The overall expected long-term rate of return on assets assumption is based on the long-term target asset allocation for plan assets and capital markets return forecasts for asset classes employed. A portion of the PBOP trust asset returns is subject to taxation, so the expected long-term rate of return for these assets is determined on an after-tax basis. Capital Markets Return Forecasts Edison International's capital markets return forecast methodologies primarily use a combination of historical market data, current market conditions, proprietary forecasting expertise, complex models to develop asset class return forecasts, and a building block approach. The forecasts are developed using variables such as real risk-free interest, inflation and asset class specific risk premiums. For equities, the risk premium is based on an implied average equity risk premium of 4% over cash. The forecasted return on private equity and opportunistic investments are estimated at a 3% premium above public equity, reflecting a premium for higher volatility and lower liquidity. For fixed income, the risk premium is based on a comprehensive modeling of credit spreads. Fair Value of Plan Assets The PBOP Plan and the Southern California Edison Company Retirement Plan Trust assets include investments in equity securities, U.S. treasury securities, other fixed-income securities, common/collective funds, mutual funds, other investment entities, foreign exchange and interest rate contracts, and partnership/joint ventures. Equity securities, U.S. treasury securities, and mutual and money market funds are classified as Level 1 as fair value is determined by observable, unadjusted quoted market prices in active or highly liquid and transparent markets. The fair value of the underlying investments in equity mutual funds are based on stock-exchange prices. The fair value of the underlying investments in fixed-income mutual funds and other fixed income securities including municipal bonds are based on evaluated prices that reflect significant observable market information such as reported trades, actual trade information of similar securities, benchmark yields, broker/dealer quotes, issuer spreads, bids, offers, and relevant credit information. Foreign exchange and interest rate contracts are classified as Level 2 because the values are based on observable prices but are not traded on an exchange. Futures contracts trade on an exchange and therefore are classified as Level 1. No investment is classified as Level 3 as of December 31, 2024 and 2023. Common/collective funds and partnerships are measured at fair value using the net asset value per share ("NAV") and have not been classified in the fair value hierarchy. Other investment entities are valued similarly to common/collective funds and are therefore classified as NAV. The Level 1 registered investment companies are either mutual or money market funds. The remaining funds in this category are readily redeemable and classified as NAV and are discussed further in the below pension plan trust investments table's note 8. Edison International reviews the process/procedures of both the pricing services and the trustee to gain an understanding of the inputs/assumptions and valuation techniques used to price each asset type/class. The trustee and Edison International's validation procedures for pension and PBOP equity and fixed income securities are the same as the nuclear decommissioning trusts. For further discussion, see Note 4. The values of Level 1 mutual and money market funds are publicly quoted. The trustees obtain the values of common/collective and other investment funds from the fund managers. The values of partnerships are based on partnership valuation statements updated for cash flows. SCE's investment managers corroborate the trustee fair values. Pension Plan The following table sets forth the investments for Edison International and SCE that were accounted for at fair value as of December 31, 2024 and 2023, respectively, by asset class and level within the fair value hierarchy: December 31, 2024 (in millions) Level 1 Level 2 NAV 1 Total U.S. government and agency securities 2 $ 244 $ 353 $ — $ 597 Corporate stocks 3 148 4 — 152 Corporate bonds 4 — 1,084 — 1,084 Common/collective funds 5 — — 652 652 Partnerships/joint ventures 6 — — 680 680 Other investment entities 7 — — 58 58 Registered investment companies 8 238 — 142 380 Interest-bearing cash 14 — — 14 Other — 57 8 65 Total $ 644 $ 1,498 $ 1,540 $ 3,682 Receivables and payables, net (74) Combined net plan assets available for benefits 3,608 SCE's share of net plan assets $ 3,416 December 31, 2023 (in millions) Level 1 Level 2 NAV 1 Total U.S. government and agency securities 2 $ 256 $ 352 $ — $ 608 Corporate stocks 3 176 5 — 181 Corporate bonds 4 — 1,057 — 1,057 Common/collective funds 5 — — 584 584 Partnerships/joint ventures 6 — — 657 657 Other investment entities 7 — — 58 58 Registered investment companies 8 212 — 153 365 Interest-bearing cash 10 — — 10 Other — 46 8 54 Total $ 654 $ 1,460 $ 1,460 $ 3,574 Receivables and payables, net 35 Combined net plan assets available for benefits 3,609 SCE's share of net plan assets $ 3,415 1 These investments are measured at fair value using the net asset value per share practical expedient and have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the net plan assets available for benefits. 2 Level 1 U.S. government and agency securities are U.S. treasury bonds and notes. Level 2 primarily relates to the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. 3 Corporate stocks are diversified. At December 31, 2024 and 2023, respectively, performance for actively managed separate accounts is primarily benchmarked against the Russell Indexes (33% and 36%) and Morgan Stanley Capital International (MSCI) index (67% and 64%). 4 Corporate bonds are diversified. At December 31, 2024 and 2023, respectively, this category includes $77 million and $78 million for collateralized mortgage obligations and other asset backed securities. 5 The common/collective assets are invested in equity index funds that seek to track performance of the Standard and Poor's 500 Index (38% and 41% at December 31, 2024 and 2023). In addition, at December 31, 2024 and 2023, respectively, 38% and 40% of the assets in this category are in index funds which seek to track performance in the MSCI All Country World Index ex-US and 19% and 16% of this category are in a non-index U.S. equity fund, which is actively managed. 6 At December 31, 2024 and 2023, respectively, 69% and 74% are invested in private equity funds with investment strategies that include branded consumer products and clean technology companies, 16% and 17% are invested in ABS including distressed mortgages and commercial and residential loans, 9% and zero are invested in fixed income securities, and 5% are invested in a broad range of financial assets in all global markets at both December 31, 2024 and 2023. 7 At December 31, 2024 and 2023, respectively, 70% and 68% are invested in domestic mortgage backed securities and 30% and 32% in high yield debt securities. 8 At December 31, 2024 and 2023, respectively, 56% and 57% are invested in Level 1 corporate bond funds, 10% and 13% in a fixed income fund used for cash management, and 34% and 28% in a US equity fund. At December 31, 2024 and 2023, respectively, approximately 64% and 62% of the publicly traded equity investments, including equities in the common/collective funds, were located in the United States. Postretirement Benefits Other than Pensions The following table sets forth the VEBA Trust assets for Edison International and SCE that were accounted for at fair value as of December 31, 2024 and 2023, respectively, by asset class and level within the fair value hierarchy: December 31, 2024 (in millions) Level 1 Level 2 NAV 1 Total U.S. government and agency securities 2 $ 489 $ 51 $ — $ 540 Corporate stocks 3 81 2 — 83 Corporate notes and bonds 4 — 1,126 — 1,126 Common/collective funds 5 — — 235 235 Partnerships 6 — — 119 119 Registered investment companies 7 52 — — 52 Interest bearing cash — 45 — 45 Other 8 — 95 — 95 Total $ 622 $ 1,319 $ 354 $ 2,295 Receivables and payables, net (14) Net plan assets available for benefits $ 2,281 December 31, 2023 (in millions) Level 1 Level 2 NAV 1 Total U.S. government and agency securities 2 $ 569 $ 84 $ — $ 653 Corporate stocks 3 85 2 — 87 Corporate notes and bonds 4 — 1,064 — 1,064 Common/collective funds 5 — — 222 222 Partnerships 6 — — 124 124 Registered investment companies 7 47 — — 47 Interest bearing cash — 29 — 29 Other 8 2 70 — 72 Total $ 703 $ 1,249 $ 346 $ 2,298 Receivables and payables, net (23) Net plan assets available for benefits $ 2,275 1 These investments are measured at fair value using the net asset value per share practical expedient and have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the net plan assets available for benefits. 2 Level 1 U.S. government and agency securities are U.S. treasury bonds and notes. Level 2 primarily relates to the Federal Home Loan Mortgage Corporation and the Federal National Mortgage Association. 3 Corporate stock performance for actively managed separate accounts is primarily benchmarked against the Russell Indexes (78% and 74% at December 31, 2024 and 2023, respectively) and the MSCI All Country World Index (22% and 26% at December 31, 2024 and 2023, respectively). 4 Corporate notes and bonds are diversified and include approximately $343 million and $237 million for commercial collateralized mortgage obligations and other asset backed securities at December 31, 2024 and 2023, respectively. 5 At December 31, 2024 and 2023, respectively, 47% and 45% of the common/collective assets are invested in index funds which seek to track performance in the MSCI All Country World Investable Market Index, 41% and 40% are invested in a non-index U.S. equity fund which is actively managed. The remaining assets in this category are primarily invested in emerging market fund and fixed income funds. 6 At December 31, 2024 and 2023, respectively, 71% and 65% of the partnerships are invested in private equity and venture capital funds. Investment strategies for these funds include branded consumer products, clean and information technology and healthcare. Of the remaining partnerships category, 22% and 28% are invested in asset backed securities including distressed mortgages, distressed companies and commercial and residential loans and debt and equity of banks; 7% are invested in a broad range of financial assets in all global markets at both December 31, 2024 and 2023. 7 At December 31, 2024 and 2023, respectively, registered investment companies were primarily invested in a money market fund (73% and 70%) and exchange rate traded funds which seek to track performance of MSCI Emerging Market Index, Russell 2000 Index and international small cap equities (27% and 30%). 8 Other includes $52 million and $58 million of municipal securities at December 31, 2024 and 2023, respectively. At both December 31, 2024 and 2023, approximately 78% of the publicly traded equity investments, including equities in the common/collective funds, were located in the United States. Stock-Based Compensation Edison International maintains a shareholder-approved incentive plan (the "2007 Performance Incentive Plan") that includes stock-based compensation. The maximum number of shares of Edison International's common stock authorized to be issued or transferred pursuant to awards under the 2007 Performance Incentive Plan, as amended, is approximately 71 million shares. As of December 31, 2024, Edison International had approximately 13 million shares remaining available for new award grants under its stock-based compensation plans. The following table summarizes total expense and tax benefits associated with stock-based compensation: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Stock-based compensation expense 1 : Stock options $ 13 $ 12 $ 13 $ 7 $ 6 $ 7 Performance shares 21 15 13 10 8 6 Restricted stock units 21 17 14 15 12 9 Other 2 2 2 — — — Total stock-based compensation expense $ 57 $ 46 $ 42 $ 32 $ 26 $ 22 Income tax benefits related to stock-based compensation expense $ 23 $ 7 $ 9 $ 14 $ 5 $ 5 1 Reflected in "Operation and maintenance" on Edison International's and SCE's consolidated statements of income. Stock Options Under the 2007 Performance Incentive Plan, Edison International has granted stock options at exercise prices equal to the closing price at the grant date. Edison International may grant stock options and other awards related to, or with a value derived from, its common stock to directors and certain employees. Options generally expire 10 years after the grant date and vest over a period of three The fair value for each option granted was determined as of the grant date using the Black-Scholes option-pricing model. The Black-Scholes option-pricing model requires various assumptions noted in the following table: Years ended December 31, 2024 2023 2022 Expected terms (in years) 4.7 4.8 5.0 Risk-free interest rate 3.7% - 4.5% 3.6% - 4.7% 1.6% - 4.1% Expected dividend yield 3.6% - 4.7% 4.2% - 4.7% 4.0% - 5.0% Weighted average expected dividend yield 4.7% 4.2% 4.0% Expected volatility 23.6% - 30.4% 29.0% - 29.6% 27.8% - 28.6% Weighted average volatility 30.3% 29.1% 27.8% The expected term represents the period of time for which the options are expected to be outstanding and is primarily based on historical exercise and post-vesting cancellation experience and stock price history. The risk-free interest rate for periods within the contractual life of the option is based on a zero-coupon U.S. Treasury STRIPS (separate trading of registered interest and principal of securities) whose maturity corresponds to the option's expected term on the measurement date. Expected volatility is based on the historical volatility of Edison International's common stock for the length of the option's expected term. The volatility period used was 56 months, 58 months, and 60 months at December 31, 2024, 2023, and 2022, respectively. The following is a summary of the status of Edison International's stock options: Weighted Average Shares Exercise Remaining Aggregate Edison International: Outstanding at December 31, 2023 11,418,243 $ 64.30 Granted 749,968 66.70 Forfeited or expired (107,158) 71.89 Exercised 1 (3,417,478) 64.49 Outstanding at December 31, 2024 8,643,575 64.33 5.01 Exercisable and expected to vest at December 31, 2024 8,438,864 64.40 4.95 $ 130 Exercisable at December 31, 2024 6,651,227 $ 64.79 4.19 $ 100 SCE: Outstanding at December 31, 2023 5,192,275 $ 64.22 Granted 390,760 66.82 Forfeited or expired (98,077) 71.44 Exercised 1 (1,892,980) 64.49 Affiliate transfers, net 14,472 64.22 Outstanding at December 31, 2024 3,606,450 64.18 5.27 Exercisable and expected to vest at December 31,2024 3,508,129 64.25 5.21 $ 55 Exercisable at December 31, 2024 2,609,173 $ 64.66 4.33 $ 40 1 Edison International and SCE recognized tax benefits of $13 million and $7 million, respectively, from stock options exercised in 2024. At December 31, 2024, total unrecognized compensation cost related to stock options and the weighted average period the cost is expected to be recognized are as follows: Edison International SCE Unrecognized compensation cost, net of expected forfeitures (in millions) $ 7 $ 4 Weighted average period (in years) 1.3 1.3 The following is a summary of supplemental data on stock options: Edison International SCE Years ended December 31, (in millions, except per award amounts) 2024 2023 2022 2024 2023 2022 Weighted average grant date fair value per option granted $ 13.32 $ 12.69 $ 9.92 $ 13.36 $ 12.71 $ 9.92 Fair value of options vested 14 8 8 7 7 5 Value of options exercised 45 14 17 25 11 12 Performance Shares A target number of contingent performance shares were awarded to executives in 2024, 2023, and 2022 and vest as of December 31, 2026, 2025, and 2024, respectively. The vesting of the grants is dependent upon market and financial performance and service conditions as defined in the grants for each of the years. The number of performance shares earned from each year's grants could range from zero to twice the target number (plus additional units credited as dividend equivalents). The fair value of market condition performance s

Investments

Investments	12 Months Ended
	Dec. 31, 2024
Regulated Entity, Other Assets, Noncurrent [Abstract]
Investments	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 on fair value of the trust investments): Amortized Costs Fair Values (in millions) Longest Maturity Dates December 31, December 31, December 31, December 31, Municipal bonds 2067 $ 729 $ 636 $ 860 $ 757 Government and agency securities 2074 1,201 1,072 1,341 1,186 Corporate bonds 2072 346 361 392 401 Short-term investments and receivables/payables 1 One-year 152 164 62 171 Total debt securities and other 2,428 2,233 2,655 2,515 Equity securities 1,631 1,658 Total 2 $ 4,286 $ 4,173 1 Short-term investments include $18 million and $38 million of repurchase agreements payable by financial institutions which earn interest, were both fully secured by U.S. Treasury securities and mature by January 2, 2025 and January 2, 2024 as of December 31, 2024 and 2023, respectively. 2 Represents amounts before reduction for deferred tax liabilities on net unrealized gains of $373 million and $380 million as of December 31, 2024 and 2023, respectively. Trust fund earnings (based on specific identification) increase the trust fund balance and the ARO regulatory liability. Unrealized holding gains, net of losses, were $1.7 billion and $1.8 billion at December 31, 2024 and 2023, respectively. The following table summarizes the gains and losses for the trust investments: Years ended December 31, (in millions) 2024 2023 2022 Gross realized gains $ 326 $ 323 $ 150 Gross realized losses (24) (73) (127) Net unrealized (losses) gains for equity securities (19) 103 (369) Due to regulatory mechanisms, changes in the assets of the trusts from income or loss items do not materially affect earnings.

Regulatory Assets and Liabiliti

Regulatory Assets and Liabilities	12 Months Ended
	Dec. 31, 2024
Regulatory Assets and Liabilities Disclosure [Abstract]
Regulatory Assets and Liabilities	Regulatory Assets and Liabilities Included in SCE's regulatory assets and liabilities are regulatory balancing accounts. CPUC-authorized balancing account mechanisms require SCE to refund or recover any differences between forecasted and actual costs. The CPUC has authorized balancing accounts for specified costs or programs such as fuel, purchased power, demand-side management programs, wildfire related costs, nuclear decommissioning and public purpose programs. Certain of these balancing accounts include a return on rate base of 7.87% and 7.44% in 2024 and 2023, respectively. The CPUC authorizes the use of a balancing account to recover from or refund to customers differences in revenue resulting from actual and forecasted electricity sales. Amounts included in regulatory assets and liabilities are generally recorded with corresponding offsets to the applicable income statement accounts. Regulatory Assets SCE's regulatory assets included on the consolidated balance sheets are: December 31, (in millions) 2024 2023 Current: Regulatory balancing and memorandum accounts $ 2,723 $ 2,502 Other 25 22 Total current 2,748 2,524 Long-term: Deferred income taxes 5,982 5,533 Unamortized investments, net of accumulated amortization 115 110 Unamortized losses on reacquired debt 88 99 Regulatory balancing and memorandum accounts 867 1,257 Environmental remediation 222 226 Recovery assets 1,512 1,558 Other 100 114 Total long-term 8,886 8,897 Total regulatory assets $ 11,634 $ 11,421 In accordance with the accounting standards applicable to rate-regulated enterprises, SCE defers costs as regulatory assets that are probable of future recovery from customers and has recorded regulatory assets for these incremental costs at December 31, 2024. While SCE believes such costs are probable of future recovery, there is no assurance that SCE will collect all amounts currently deferred as regulatory assets. SCE's regulatory assets related to deferred income taxes represent tax benefits passed through to customers. The CPUC requires SCE to flow through certain deferred income tax benefits to customers by reducing electricity rates, thereby deferring recovery of such amounts to future periods. Based on current regulatory ratemaking and income tax laws, SCE expects to recover its regulatory assets related to deferred income taxes over the life of the assets that give rise to the accumulated deferred income taxes, approximately from 1 to 60 years. For further information, see Note 8. SCE has long-term unamortized investments which include nuclear assets related to Palo Verde and the beyond the meter program. Nuclear assets related to Palo Verde and the beyond the meter program are expected to be recovered by 2046 and 2031, respectively, and both earned returns of 7.87% and 7.44% in 2024 and 2023, respectively. SCE's net regulatory asset related to its unamortized losses on reacquired debt will be recovered over the original amortization period of the reacquired debt over periods ranging from 10 to 40 years or the life of the new issuance if the debt is refunded or refinanced. SCE's regulatory assets related to environmental remediation represent a portion of the costs incurred at certain sites that SCE is allowed to recover through customer rates. See "Environmental Remediation" discussed in Note 12. Recovery assets represent the balance associated with the Recovery Property and prudently incurred financing costs securitized with issuance of the associated bond. The recovery period is until 2047, when the bonds and interest are paid in full. For further details, see Note 3. Regulatory Liabilities SCE's regulatory liabilities included on the consolidated balance sheets are: December 31, (in millions) 2024 2023 Current: Regulatory balancing and memorandum accounts $ 1,144 $ 704 Energy derivatives 165 16 Other 38 43 Total current 1,347 763 Long-term: Costs of removal 2,520 2,635 Deferred income taxes 2,163 2,211 Recoveries in excess of ARO liabilities 1,748 1,498 Regulatory balancing and memorandum accounts 2,023 1,395 Pension and other postretirement benefits 1,690 1,664 Other 15 17 Total long-term 10,159 9,420 Total regulatory liabilities $ 11,506 $ 10,183 SCE's regulatory liabilities related to energy derivatives are primarily an offset to unrealized gains on derivatives. SCE's regulatory liabilities related to costs of removal represent differences between asset removal costs recorded and amounts collected in rates for those costs. SCE's regulatory liabilities include excess deferred income taxes resulting from statutory income tax rate changes. The regulatory liabilities are generally expected to be refunded to customers over the lives of the assets and liabilities that gave rise to the deferred income taxes. SCE's regulatory liabilities related to recoveries in excess of ARO liabilities represent the cumulative differences between ARO obligations and amounts collected in rates primarily for the decommissioning of SCE's nuclear generation facilities. Decommissioning costs recovered through rates are primarily placed in nuclear decommissioning trusts. This regulatory liability also represents the deferral of realized and unrealized gains and losses on the nuclear decommissioning trust investments. See Note 10 for further discussion. SCE's regulatory liabilities related to pension and other post-retirement plans represent the net overfunded status of the plans. This amount is expected to be amortized over the expected future service of the employees (subject to regulatory adjustment) or refunded to ratepayers at the termination or completion of the plan. See "Pension Plans and Postretirement Benefits Other than Pensions" discussion in Note 9. Net Regulatory Balancing and Memorandum Accounts Balancing accounts track amounts that the CPUC or FERC have authorized for recovery. Balancing account over and under collections represent differences between cash collected in current rates for specified forecasted costs and such costs that are actually incurred. Undercollections are recorded as regulatory balancing account assets. Overcollections are recorded as regulatory balancing account liabilities. With some exceptions, SCE seeks to adjust rates on an annual basis or at other designated times to recover or refund the balances recorded in its balancing accounts. Memorandum accounts are authorized to track costs for potential future recovery. Regulatory balancing and memorandum accounts that SCE does not expect to collect or refund in the next 12 months are reflected in the long-term section of the consolidated balance sheets. Regulatory balancing and memorandum accounts that do not have the right of offset are presented gross in the consolidated balance sheets. Under and over collections in balancing accounts and amounts recorded in memorandum accounts typically accrue interest based on a three-month commercial paper rate published by the Federal Reserve. The following table summarizes the significant components of regulatory balancing and memorandum accounts included in the above tables of regulatory assets and liabilities: December 31, (in millions) 2024 2023 Asset (liability) Energy procurement related costs $ (97) $ 397 Public purpose and energy efficiency (1,708) (1,736) GRC related balancing accounts 1 976 1,361 FERC related balancing accounts 125 (211) Wildfire risk mitigation and insurance 2 741 1,169 Wildfire and drought restoration 3 238 417 Tax accounting memorandum account (40) 108 Other 188 155 Assets, net of liabilities $ 423 $ 1,660 1 The GRC related balancing accounts primarily consist of the base revenue requirement balancing account ("BRRBA"), the vegetation management balancing account ("VMBA"), the Wildfire Risk Mitigation balancing account ("WRMBA") and the risk management balancing account ("RMBA"). The 2021 GRC decision approved the establishment of the VMBA to track vegetation management expenses up to 115% of amounts authorized, the WRMBA to track the costs of SCE's Wildfire Covered Conductor Program up to 110% of amounts authorized and the RMBA to track the authorized costs of wildfire insurance. If spending is less than authorized, SCE will refund those amounts to customers. If spending is within the specified threshold, if any, for each balancing account, SCE will recover those costs from customers. Amounts above the specified threshold, or above amounts authorized if a higher threshold was not established, for each balancing account may be eligible for deferral to wildfire risk mitigation and insurance accounts. 2 The wildfire risk mitigation and insurance regulatory assets represent wildfire-related costs that are probable of future recovery from customers, subject to a reasonableness review. The Fire Hazard Prevention Memorandum Account was used to track costs related to fire safety and to implement fire prevention corrective action measures in extreme and very high fire threat areas. The Wildfire Expense Memorandum Account ("WEMA") is used to track incremental wildfire insurance costs and uninsured wildfire-related financing, legal and claims costs related to the Other Wildfire Events that SCE believes are probable of recovery. See Note 12 for further details. The Wildfire Mitigation Plan Memorandum Account is used to track costs incurred to implement SCE's wildfire mitigation plan that are not currently reflected in SCE's revenue requirements. The Fire Risk Mitigation Memorandum Account is used to track costs related to the reduction of fire risk that are incremental to costs approved for recovery in SCE's GRCs that are not tracked in any other wildfire-related memorandum account. The balance also includes vegetation management spending in excess of the 115% threshold for the VMBA described above. 3 The wildfire and drought restoration regulatory assets represent restoration costs that are recorded in a Catastrophic Event Memorandum Account.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Power Purchase Agreements SCE entered into various agreements to purchase power, electric capacity and other energy products. At December 31, 2024, the undiscounted future expected minimum payments for the SCE PPAs (primarily related to renewable energy contracts), which were approved by the CPUC and met other critical contract provisions (including completion of major milestones for construction), were as follows: (in millions) Total 2025 $ 2,986 2026 3,139 2027 2,704 2028 2,423 2029 2,421 Thereafter 16,493 Total future commitments 1 $ 30,166 1 Certain power purchase agreements are treated as operating leases. For further discussion, see Note 13. Includes long-term lease contracts commencing in 2024 with total future minimum lease payments of $57 million. Additionally, as of December 31, 2024, SCE has executed contracts that have not met the critical contract provisions that would increase contractual obligations by $25 million in 2025, $140 million in 2026, $274 million in 2027, $381 million in 2028, $450 million in 2029 and $5,370 million thereafter, if all critical contract provisions are completed. Costs incurred for PPAs were $4.0 billion in 2024, $4.5 billion in 2023 and $5.1 billion in 2022, which include costs associated with contracts with terms of less than one year. Other Commitments The following summarizes the estimated minimum future commitments for SCE's other commitments: (in millions) 2025 2026 2027 2028 2029 Thereafter Total Other contractual obligations $ 62 $ 59 $ 59 $ 59 $ 48 $ 142 $ 429 Costs incurred for other commitments were $65 million in 2024, $60 million in 2023 and $58 million in 2022. Other commitments include fuel supply contracts for Palo Verde which require payment only if the fuel is made available for purchase. Also included are commitments related to maintaining reliability and expanding SCE's transmission and distribution system. The table above does not include asset retirement obligations, which are discussed in Note 1. Indemnities 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 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. Legal costs expected to be incurred by Edison International and SCE in connection with loss contingencies are expensed as incurred. Southern California Wildfires and Mudslides Unprecedented weather conditions in California due to climate change have contributed to wildfires, including those where SCE's equipment has been alleged to be associated with the fire's ignition, that have caused loss of life and substantial damage in SCE's service area, including as recently as January 2025. Numerous claims related to wildfire events have been initiated against SCE and Edison International. Edison International and SCE have, or may, incur material losses in connection with the 2017/2018 Wildfire/Mudslide Events, the Other Wildfire Events that are described below, and the January 2025 Eaton Fire. Of the Other Wildfire Events described below , only the 2017 Creek Fire ignited prior to the adoption of AB 1054 in July 2019. SCE's equipment has been, and may further be, alleged to be associated with other wildfires that have originated in Southern California, and SCE's service area remains susceptible to additional wildfire activity. 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, including claims for non-economic damages. 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 and in estimating settlement outcomes. Estimates and Assumptions 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 and Other Wildfire Events. Due to the number of uncertainties and possible outcomes related to the 2017/2018 Wildfire/Mudslide Events and Other Wildfire Events litigation, Edison International and SCE cannot estimate the upper end of the range of reasonably possible losses that may be incurred in connection with the 2017/2018 Wildfire/Mudslide Events or the Other Wildfire Events. Estimated losses for wildfire 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 and uncertainty in estimating settlement outcomes. For instance, SCE receives additional information with respect to damages claimed as claims mediation and trial 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 claims mediation processes, uncertainties related to the impact of outcomes of wildfire litigation against other parties and increasingly negative jury sentiments in general litigation, uncertainties related to the sufficiency of insurance held by plaintiffs, uncertainties related to 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 wildfire events, the complexities associated with fires that merge, as applicable for the Thomas and Koenigstein Fires, and, for the Montecito Mudslides, whether inverse condemnation will be held applicable to SCE with respect to damages caused by the mudslides, and the uncertainty as to how these factors impact future settlements. Litigation 2017/2018 Wildfire/Mudslide Events Wildfires in SCE's service area 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 CAL FIRE, have determined that the largest of the 2017 fires in SCE's service area originated on December 4, 2017, in the Anlauf Canyon area of Ventura County, followed shortly thereafter by a second fire that originated near Koenigstein Road in the City of Santa Paula. 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 service area, the Woolsey Fire, originated in Ventura County. 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. 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 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 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 February 20, 2025, in addition to the outstanding claims of approximately 290 individual plaintiffs, there were alleged and potential claims of certain public entity plaintiffs, including CAL OES, outstanding. SCE has settled all fire suppression claims and subrogation plaintiffs' claims related to the 2017/2018 Wildfire/Mudslide Events. 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. Some of SCE's cross-claims are still outstanding. The litigation could take a number of years to be completely resolved because of the complexity of the matters and number of plaintiffs. As of February 20, 2025, SCE has entered into settlements with approximately 13,600 individual plaintiffs in the 2017/2018 Wildfire/Mudslide Events litigation. The statutes of limitations for individual plaintiffs in the 2017/2018 Wildfire/Mudslide Events have expired. As of February 20, 2025, SCE has received demands for approximately 94% and 100% of outstanding individual plaintiff claims in the TKM litigation and Woolsey Fire litigation, respectively. In October 2021, SCE and the SED executed an 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 was composed 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 $125 million and $250 million of third-party uninsured claims payments (and related financing costs) in the TKM litigation and the Woolsey Fire litigation, respectively. 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 did not admit imprudence, negligence, or liability with respect to the 2017/2018 Wildfire/Mudslide Events in the SED Agreement. 2017 Creek Fire The Creek Fire originated near Sylmar in Los Angeles County in December 2017 and burned approximately 16,000 acres, destroyed an estimated 123 structures, damaged an estimated 81 structures, and resulted in 3 civilian injuries. While the United States Forest Service's ("USFS") January 2018 report of investigation concluded that the Los Angeles Department of Water and Power ("LADWP") long-span transmission lines slapping together in high winds resulted in arcing and ignition of the fire, in August 2024, the USFS issued a supplemental report concluding that the fire was caused by SCE power lines. In 2023, the USFS dismissed its claim against LADWP and filed a claim against SCE to recover over $40 million for fire-suppression costs incurred by the USFS and environmental damage to U.S. lands. A trial in the USFS litigation is currently set for September 2025. Other than for the claims of 7 individual plaintiffs related to one property that were damaged by the Creek Fire, SCE has entered into settlements or settlements in principle on all claims filed by individual and subrogation plaintiffs who filed complaints against SCE related to the fire. A damages-only bench trial is currently set for June 2025 in one of the outstanding individual plaintiff cases. 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 p rocess. The SED is conducting an investigation with respect to the Creek Fire. SCE ha s accrued charges for potential losses relating to the Creek Fire. 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 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. The SED is conducting an investigation with respect to the Saddle Ridge Fire. There are currently no trials scheduled in the Saddle Ridge Fire litigation. 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 determined that losses in connection with the Saddle Ridge Fire are probable and consequently 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 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. In May 2023, SCE received a report of investigation from the USFS, in which the USFS finds that the Bobcat Fire was caused when an SCE electrical wire made contact with a tree limb. The SED has concluded its investigation of the Bobcat Fire and found no violations of its rules and regulations by SCE related to the Bobcat Fire. SCE has settled subrogation plaintiff claims and a claim brought by the United States of America against SCE and one of its contractors to recover fire-suppression costs, property and natural resource losses, and emergency response costs. Individual plaintiffs have also filed complaints against SCE related to the Bobcat Fire. 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 process. SCE has accrued charges for potential losses relating to the Bobcat Fire. 2020 Silverado Fire The "Silverado Fire" originated in Orange County in October 2020 and burned over 12,000 acres. The Orange County Fire Authority ("OCFA"). OCFA jointly with CAL FIRE have reported that the Silverado Fire destroyed five structures, damaged nine other structures and resulted in two firefighter injuries. There were also four other structures damaged or destroyed. In addition, methane re-generation pipelines were destroyed and approximately 200 acres of avocado orchards were damaged in the fire. Fire authorities have estimated suppression costs at approximately $20 million. An investigation into the cause of the Silverado Fire was conducted by the OCFA and CAL FIRE. OCFA and CAL FIRE concluded in their October 2020 report of investigation that contact between an SCE conductor and a T-Mobile USA, Inc. ("T-Mobile") line resulted in ignition of the Silverado Fire. In 2024, SCE paid a fine of approximately $2 million imposed by the SED for failure to comply with maintenance requirements with respect to two conductors. Multiple lawsuits related to the Silverado Fire have been filed by individual and subrogation plaintiffs, CAL FIRE, T-Mobile, County of Orange and Cal OES naming SCE as a defendant. T-Mobile has also been named as a defendant and maintains a cross-complaint against SCE and Edison International. A trial in the Silverado Fire litigation has been set for May 2025. 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 process. S CE has accrued charges for potential losses relating to the Silverado Fire. 2022 Coastal Fire The "Coastal Fire" originated in Orange County in May 2022 and burned approximately 200 acres. The Orange County Fire Authority ("OCFA") has reported that the Coastal Fire destroyed 20 residential structures and damaged 11 residential structures. Two firefighters also reportedly sustained minor injuries. In addition, fire authorities have estimated suppression costs at approximately $3 million. While SCE's investigation remains ongoing, SCE's information reflects that a SCE circuit in the area experienced an anomaly (a relay) approximately 2 minutes prior to the reported time of the fire. An investigation into the cause of the Coastal Fire was led by the OCFA. The OCFA has retained SCE equipment in connection with its investigation. In September 2024, SCE received a report of investigation from the OCFA, in which the OCFA finds that the Coastal Fire was unintentionally caused by sparks from overhead SCE electrical equipment igniting vegetation under the equipment. The SED is conducting an investigation with respect to the Coastal Fire. One damages only trial for one individual plaintiff household is currently scheduled for May 2025 in the Coastal Fire litigation. 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 process. SCE has accrued charges for potential losses relating to the Coastal Fire. 2022 Fairview Fire The "Fairview Fire" originated in Riverside County in September 2022 and burned approximately 28,000 acres. CAL FIRE has reported that the Fairview Fire destroyed 22 residential structures, damaged five residential structures, and destroyed or damaged 17 minor structures. CAL FIRE also reported two civilian fatalities, one civilian injury and two injuries to responding fire personnel. In addition, fire authorities have estimated suppression costs at $39 million. While SCE's investigation remains ongoing, SCE's information reflects that a SCE circuit in the area experienced an anomaly (a relay) approximately 8 minutes prior to the reported start time of the fire. In November 2023, SCE received a report of investigation conducted by CAL FIRE, in which CAL FIRE finds that the Fairview Fire was caused when a sagging SCE electrical conductor came in contact with a communication line, causing sparks to fall and ignite surrounding vegetation. In July 2024, the SED issued a notice of violation alleging that SCE failed to comply with clearance requirements with respect to its electrical conductor. Jury trials for bellwether plaintiffs in the Fairview Fire litigation have been set for May 2025. 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 process. SCE has accrued charges for potential losses relating to the Fairview Fire. Settlement of Claims The following table presents settlements paid. (in millions) Inception to December 31, 2024 2024 2023 2022 2017/2018 Wildfire/Mudslide Events $ 9,454 $ 779 $ 1,034 $ 1,911 Other Wildfire Events 564 361 190 13 Total $ 10,018 $ 1,140 $ 1,224 $ 1,924 Edison International and SCE has not admitted wrongdoing or liability as part of any settlements related to the 2017/2018 Wildfire/Mudslide Events or the Other Wildfire Events. SCE continues to explore reasonable settlement opportunities with plaintiffs in outstanding wildfire litigation. Loss Estimates The following table presents changes in estimated losses since December 31, 2023: (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Balance at December 31, 2023 $ 715 $ 683 $ 1,398 Increase in accrued estimated losses 490 253 743 Amounts paid (779) (361) (1,140) Balance at December 31, 2024 $ 426 $ 575 $ 1,001 Edison International's and SCE's consolidated balance sheets included fixed payments to be made under executed settlement agreements and accrued estimated losses presented in the tables below: (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Current portion of Wildfire-related claims liabilities 1 $ 48 $ 12 $ 60 Long term wildfire-related claims liabilities 2 378 563 941 Total Balance at December 31, 2024 $ 426 $ 575 $ 1,001 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Current portion of Wildfire-related claims liabilities 1 $ 30 $ — $ 30 Long term wildfire-related claims liabilities 2 685 683 1,368 Total Balance at December 31, 2023 $ 715 $ 683 $ 1,398 1. At December 31, 2024, current liabilities related to 2017/2018 Wildfire/Mudslide Events consisted of $29 million of settlements executed and $19 million of short-term payables under the SED Agreement. At December 31, 2023, current liabilities related to 2017/2018 Wildfire/Mudslide Events consisted of $16 million of settlements executed and $14 million of short-term payables under the SED Agreement. 2. At December 31, 2024, long-term wildfire-related claims related to 2017/2018 Wildfire/Mudslide Events consisted of $38 million of long-term payables under the SED Agreement and $340 million of estimate of expected losses for remaining alleged and potential claims. At December 31, 2023, long-term wildfire-related claims related to 2017/2018 Wildfire/Mudslide Events consisted of $48 million of long-term payables under the SED Agreement and $637 million of estimate of expected losses for remaining alleged and potential claims. Edison International and SCE have accrued their best estimate of expected losses for remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events and at the low end of the estimated range of reasonably possible losses for each of the Other Wildfire Events as no amount within the range of reasonably possible losses for each such fire appears, at this time, to be a better estimate than any other amount within the range. While Edison International and SCE may incur a material loss in excess of the amounts accrued, they cannot estimate the upper end of the range of reasonably possible losses that may be incurred in connection with the 2017/2018 Wildfire/Mudslide Events or the Other Wildfire Events. The estimated losses for the 2017/2018 Wildfire/Mudslide Events do not include estimates of potential losses related to certain potential public entity plaintiff claims, including CAL OES's claim in the TKM litigation, for which the statute of limitations has been tolled, and for an individual plaintiff demand received in the first quarter of 2024 that continues to be analyzed and has not been substantiated, as losses from these alleged and potential claims are not estimable at this time. Management reviews its loss estimates for remaining alleged and potential claims related to wildfire litigation quarterly. The first quarter 2024 analysis with respect to the 2017/2018 Wildfire/Mudslide Events included a review of information received during the first quarter of 2024 about outstanding claims, including demands from most of the individual plaintiffs who had opted into the Woolsey Fire mediation program, and from settling claims through that quarter. As a result of management's reviews, SCE recorded an increase in estimated losses of $490 million for the 2017/2018 Wildfire/Mudslide Events during the first quarter of 2024. For the years ended December 31, 2024, 2023 and 2022, SCE's consolidated statements of income included charges for the estimated losses, net of expected recoveries, as follows: Year ended December 31, 2024 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Charge for wildfire-related claims $ 490 $ 253 $ 743 Expected insurance recoveries 1 — (96) (96) Expected recoveries through electric rates (27) (9) (36) Total pre-tax charge 463 148 611 Income tax benefit (130) (42) (172) Total after-tax charge $ 333 $ 106 $ 439 Year ended December 31, 2023 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Charge for wildfire-related claims $ 630 $ 184 $ 814 Expected insurance recoveries 1 — (149) (149) Expected recoveries through electric rates (37) (2) (39) Total pre-tax charge 593 33 626 Income tax benefit (165) (9) (174) Total after-tax charge $ 428 $ 24 $ 452 Year ended December 31, 2022 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Charge for wildfire-related claims $ 1,296 $ 572 $ 1,868 Expected insurance recoveries 1 — (399) (399) Expected recoveries through electric rates (76) (162) (238) Total pre-tax charge 1,220 11 1,231 Income tax benefit (341) (3) (344) Total after-tax charge $ 879 $ 8 $ 887 1. In 2024, 2023 and 2022, Edison Insurance Services, Inc. ("EIS"), a wholly-owned subsidiary of Edison International, incurred $4 million, $3 million and $9 million insurance expenses, respectively. These amounts were included in the insurance recoveries of SCE but were excluded from those of Edison International. In total, through December 31, 2024, SCE has recorded estimated losses of $11 billion, expected recoveries from insurance and third parties of $2.7 billion and expected recoveries through electric rates of $617 million related to the 2017/2018 Wildfire/Mudslide Events and the Other Wildfire Events. The after-tax net charges to earnings recorded through December 31, 2024, have been $5.6 billion. Recoveries SCE has exhausted expected insurance recoveries related to the 2017/2018 Wildfire/Mudslide Events. Expected recoveries from insurance recorded for the Other Wildfire Events are supported by SCE's insurance coverage for multiple policy years. Edison International and SCE record a receivable for insurance recoveries when recovery of a recorded loss is determined to be probable. Recovery of SCE's losses realized in connection with the Woolsey Fire and the Other Wildfire Events in excess of available insurance is subject to approval by regulators. The CPUC and FERC may not allow SCE to recover uninsured losses through electric rates, including by requiring refund of amounts recovered, if it is determined that such losses were not prudently incurred. Under accounting standards for rate-regulated enterprises, SCE defers costs as regulatory assets in the period it concludes that such costs are probable of future recovery in electric rates. SCE utilizes objectively determinable evidence to form its view on the probability of future recovery. While Edison International and SCE may incur material losses in excess of the amounts accrued for certain of the Other Wildfire Events, Edison International and SCE expect that additional losses incurred in connection with any such fire, other than for the Creek Fire, will be covered by insurance, subject to self-insured retentions and co-insurance, and expect that any such additional losses after expected recoveries from insurance and through electric rates will not be material. As of December 31, 2024, SCE has recorded total expected recoveries of $2.7 billion from insurance, of $152 million within the WEMA and RMBA and $465 million within the FERC related balancing account related to the 2017/2018 Wildfire/Mudslide Events and the Other Wildfire Events. The following table sets forth total expected recoveries SCE has recorded since inception through December 31, 2024: (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Insurance recoveries $ 2,000 $ 718 $ 2,718 FERC recoveries 440 25 465 CPUC- RMBA recoveries — 12 12 CPUC-WEMA deferral — 140 140 Total $ 2,440 $ 895 $ 3,335 The following tables summarize expected recoveries from insurance and through electric rates as of December 31, 2024 and 2023: December 31, 2024 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Long-term insurance receivables $ — $ 434 $ 434 FERC related balancing accounts 64 9 73 CPUC-WEMA — 140 140 Total $ 64 $ 583 $ 647 December 31, 2023 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Long-term insurance receivables $ — $ 512 $ 512 FERC related balancing accounts 37 14 51 CPUC-WEMA — 140 140 Total $ 37 $ 666 $ 703 For events that occurred in 2017 and early 2018, principally

Leases

Leases	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Leases	Leases Leases as Lessee SCE enters into various agreements to purchase power, electric capacity and other energy products that may be accounted for as leases when SCE has dispatch rights that determine when and how a plant runs. SCE also leases property and equipment primarily related to vehicles, office space and other equipment. The terms of the lease contracts included in the table below are primarily 15 to 20 years for PPA leases, 3 to 72 years for office leases, and 5 to 13 years for the remaining other operating leases. Finance leases are immaterial to the periods presented. The following table summarizes SCE's future lease payments for operating leases as of December 31, 2024: (in millions) PPA Operating Leases Other Operating Leases 1 2025 $ 106 $ 64 2026 89 58 2027 84 54 2028 84 48 2029 85 41 Thereafter 698 104 Total lease payments 1,146 369 Amount representing interest 265 76 Lease liabilities $ 881 $ 293 1 Excludes escalation clauses based on consumer price or other indices and residual value guarantees that are not considered probable at the commencement date of the lease. The timing of SCE's recognition of the lease expense conforms to ratemaking treatment for SCE's recovery of the cost of electricity and is included in purchased power for PPA operating leases. The following table summarizes the components of SCE's lease expense: Years ended December 31, (in millions) 2024 2023 2022 PPA leases: Operating lease cost $ 115 $ 503 $ 580 Variable lease cost 1 1,700 2,277 2,661 Total PPA lease cost 1,815 2,780 3,241 Other operating leases cost 64 56 52 Total lease cost $ 1,879 $ 2,836 $ 3,293 1 Includes lease costs from legacy renewable energy contracts where payments are based on contingent external factors such as wind, hydro and solar power generation. Other information related to leases was as follows: Years ended December 31, (in millions, except lease term and discount rate) 2024 2023 2022 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from: PPA operating leases $ 115 $ 503 $ 580 Other operating leases 62 55 50 ROU assets obtained in exchange for lease obligations: PPA operating leases $ 11 $ 226 $ 20 Other operating leases 79 69 76 Weighted average remaining lease term (in years): PPA operating leases 12.50 13.37 9.42 Other operating leases 8.86 9.56 10.38 Weighted average discount rate: PPA operating leases 4.30% 4.30% 2.95% Other operating leases 4.50% 4.22% 3.78% Leases as Lessor SCE also enters into operating leases to rent certain land and facilities as a lessor. These leases primarily have terms that range from 15 to 65 years. During the years ended December 31, 2024, 2023 and 2022, SCE recognized lease income of $18 million, $17 million and $18 million, respectively, which is included in operating revenue on the consolidated statements of income. At December 31, 2024, the undiscounted cash flow expected to be received from lease payments for the remaining years is as follows: (in millions) 2025 $ 12 2026 8 2027 8 2028 8 2029 7 Thereafter 118 Total $ 161

Equity

Equity	12 Months Ended
	Dec. 31, 2024
Stockholders' Equity Note [Abstract]
Equity	Equity Common Stock Stock Repurchase Programs On December 12, 2024, the Edison International Board of Directors authorized a stock repurchase program effective February 20, 2025 for repurchase of up to $75 million of its common stock until February 18, 2026 ("2025 Repurchase Program"). The Repurchase Program will be used to offset dilution from common stock issued under Edison International's long-term incentive compensation programs and will be funded using Edison International's working capital. The timing and the amount of any repurchased common stock will be determined by Edison International's management based on their evaluation of market conditions and other factors. The 2025 Repurchase Program may be executed through various methods, including open market purchases, privately negotiated transactions, and other transactions in accordance with applicable securities laws. Any repurchased shares of common stock will be retired. The 2025 Repurchase Program does not obligate Edison International to acquire any particular amount of common stock, and it may be suspended or discontinued at any time at its discretion. On July 25, 2024, Edison International announced a stock repurchase program effective July 29, 2024 for repurchase of up to $200 million of its common stock until December 31, 2025 ("2024 Repurchase Program"). The 2024 Repurchase Program was used to offset dilution from common stock issued under Edison International's long-term incentive compensation programs and was funded using Edison International's working capital. During the year ended December 31, 2024, Edison International repurchased and retired 2,412,203 shares under the 2024 Repurchase Program for an average price of $82.91 per share. As of December 31, 2024, no authorized repurchase amount remained under the 2024 Share Repurchase Program. At-the-market Program As of December 31, 2024 , 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 $500 million . Edison International has no obligation to sell the remaining shares available under the ATM program. On February 21, 2025, Edison International delivered notice to the agents to terminate the ATM program, which was effective February 24, 2025. Preferred Stock As of December 31, 2024, Edison International had 1,159,317 shares of 5.375% Fixed-Rate Reset Cumulative Perpetual Preferred Stock, Series A ("Series A Preferred Stock") and 503,454 shares of 5.00% Fixed-Rate Reset Cumulative Perpetual Preferred Stock, Series B ("Series B Preferred Stock") outstanding, each with a liquidation value of $1,000 per share. The dividends are payable on a semi-annual basis and will be reset every five years beginning on March 15, 2026 and March 15, 2027, for Series A Preferred Stock and Series B Preferred Stock, respectively, to equal the then-current five-year U.S. Treasury rate plus a spread. In the first and second quarter of 2024, Edison International repurchased 20,000 shares and 9,000 shares, respectively, of its Series B Preferred Stock via open market repurchases for $19 million (at an average price of $952 ) and $9 million (at an average price of $967), respectively , including accrued and unpaid dividends. In December 2023 , Edison International repurchased 29,186 shares of its Series A Preferred Stock and 133,323 shares of its Series B Preferred Stock via open market repurchases for $28 million (at an average price of $971) and $127 million (at an average price of $955), respectively, including accrued and unpaid dividends. In November 2023, Edison International, through a tender offer, repurchased 61,497 shares of its Series A Preferred Stock and 84,223 shares of its Series B Preferred Stock for $57 million (at an average price of $925) and $76 million (at an average price of $904), respectively, including accrued and unpaid dividends. Edison International recognized a total net gain of $1 million and $16 million for the years ended December 31, 2024 and 2023 , respectively, from the repurchases as reflected in "Preferred stock dividend requirements of Edison International" on the consolidated statements of income. Edison International may, at its option, redeem its preferred stocks in whole or in part during certain periods of time prior to each of the dividend reset dates at a price equal to $1,000 per share plus any accumulated and unpaid dividends. Edison International may also, at its option, redeem the preferred stocks in whole but not in part at a price equal to $1,020 per share plus any accumulated and unpaid dividends within a certain period of time following any change in the criteria rating agencies use that would have adverse effects on the equity credit attributed by rating agencies to the preferred stocks. The preferred stocks rank senior to Edison International's common stock with respect to dividends rights and distribution rights upon liquidation. The preferred stocks are not subject to any mandatory sinking fund, retirement fund, purchase fund or other similar provisions. Holders of the shares of the preferred stocks do not have the right to require Edison International to repurchase or redeem shares of the preferred stocks. Preferred and Preference Stock of Utility SCE's authorized shares are: $100 cumulative preferred – 12 million shares, $25 cumulative preferred – 24 million shares and preference with no par value – 50 million shares. There were no preferred shares issued or outstanding as of December 31, 2024 and 2023. Shares of SCE's preference stock rank senior to SCE's common stock with respect to dividend rights and distribution rights upon liquidation. SCE's outstanding preference shares are not subject to mandatory redemption and there is no sinking fund requirement for redemptions or repurchases of preference shares. There are no dividends in arrears for the preference shares. The following table summarizes preference stocks (dividends declared per share are for 2024): Issue Date Shares Redemption Dividends December 31, (in millions, except shares and per share amounts) 2024 2023 No par value (cumulative): 3-month SOFR+4.199% Series E 2012 — $ 1,000 $ 24.418 $ — $ 350 5.10% Series G 2013 88,004 2,500 127.500 220 220 3-month SOFR+2.99% Series H 2014 — 2,500 187.776 — 275 5.375% Series J 2015 130,004 2,500 134.375 325 325 5.45% Series K 2016 120,004 2,500 136.250 300 300 5.00% Series L 2017 190,004 2,500 125.000 475 475 7.50% Series M 2023 220,004 2,500 199.479 550 550 6.95% Series N 2024 140,004 2,500 102.319 350 — SCE's preference stock 2,220 2,495 Less: issuance costs (45) (52) Edison International's preference stock of utility $ 2,175 $ 2,443 Shares of Series E, G, H and L preference stock may be redeemed at par, in whole or in part. Shares of Series J, K, and M preference stock may be redeemed at par, in whole, but not in part, at any time prior to September 15, 2025, March 15, 2026, and November 22, 2028, respectively, if certain changes in tax or investment company law or interpretation (or applicable rating agency equity credit criteria for Series L and M only) occur and certain other conditions are satisfied. On or after September 15, 2025, March 15, 2026, and November 22, 2028, SCE may redeem the Series J, K, and M shares, respectively, at par, in whole or in part. For shares of Series J and K preference stock, distributions will accrue and be payable at a floating rate from and including September 15, 2025 and March 15, 2026, respectively. In May 2024, $350 million Series N preference stock was issued. The proceeds were used to redeem all of the Series E preference stock. In November 2024, Series H preference stock was redeemed.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss The changes in accumulated other comprehensive loss, net of tax, consist of: Edison International SCE Years ended December 31, (in millions) 2024 2023 2024 2023 Beginning balance $ (9) $ (11) $ (12) $ (8) Pension and PBOP: Other comprehensive (loss) income before reclassifications 7 (2) 1 (5) Reclassified from accumulated other comprehensive loss 1 2 1 2 1 Foreign currency translation adjustments — 3 — — Change 9 2 3 (4) Ending balance $ — $ (9) $ (9) $ (12) 1 These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 9 for additional information .

Other Income, Net

Other Income, Net	12 Months Ended
	Dec. 31, 2024
Other Income and Expenses [Abstract]
Other Income, Net	Other Income, Net Other income net of expenses is as follows: Years ended December 31, (in millions) 2024 2023 2022 SCE other income (expense): Equity AFUDC $ 187 $ 157 $ 137 Increase in cash surrender value of life insurance policies and life insurance benefits 42 37 42 Interest income 250 261 80 Net periodic benefit income – non-service components 91 100 136 Civic, political and related activities and donations (63) (42) (42) Other (14) (16) (16) Total SCE other income, net 493 497 337 Other income (expense) of Edison International Parent and Other: Net (losses) gains on equity securities — (3) 1 Interest income and other 9 6 10 Total Edison International other income, net $ 502 $ 500 $ 348

Supplemental Cash Flows Informa

Supplemental Cash Flows Information	12 Months Ended
	Dec. 31, 2024
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flows Information	Supplemental Cash Flows Information Supplemental cash flows information is: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Cash payments (receipts): Interest, net of amounts capitalized $ 1,588 $ 1,401 $ 1,001 $ 1,306 $ 1,155 $ 864 Income taxes, net 51 — (49) 78 — (49) Non-cash financing and investing activities: Dividends declared but not paid: Common stock 318 299 282 430 360 350 Preference stock of SCE — 9 8 — 9 8 Details of debt exchange: Pollution-control bonds redeemed (2.625%) — (135) — — (135) — Pollution-control bonds remarketed (4.50%) — 135 — — 135 — SCE's accrued capital expenditures for the years ended December 31, 2024, 2023, and 2022 were $644 million, $680 million, and $652 million, respectively. Accrued capital expenditures are included in investing activities in the consolidated statements of cash flows in the period paid.

Related-Party Transactions

Related-Party Transactions	12 Months Ended
	Dec. 31, 2024
Related Party Transactions [Abstract]
Related-Party Transactions	Related-Party Transactions Edison International and SCE provide and receive various services to and from its subsidiaries and affiliates. Services provided to Edison International by SCE are priced at fully loaded cost (i.e., direct cost of goods or service and allocation of overhead cost). Specified administrative services performed by Edison International or SCE employees, such as payroll and employee benefit programs, are shared among all affiliates of Edison International. Costs are allocated based on one of the following formulas: percentage of time worked, equity in investment and advances, number of employees, or multi-factor (operating revenue, operating expenses, total assets and number of employees). Edison International allocates various corporate administrative and general costs to SCE and other subsidiaries using established allocation factors. For the years ended December 31, 2024 and 2023, SCE did not purchase wildfire liability insurance from EIS. Beginning on July 1, 2023, in lieu of obtaining wildfire liability insurance from the commercial insurance market, SCE implemented its customer-funded wildfire self-insurance program. For the year ended December 31, 2022, SCE purchased wildfire liability insurance for premiums of $273 million from EIS. 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 for the 12 months ended June 30, 2023 under which EIS provided insurance protection to SCE. SCE recorded the premium as insurance expense and recorded an equal amount of revenue due to customer funding through regulatory cost recovery mechanisms, therefore there was no earnings impact on SCE's consolidated statements of income. EIS recorded the premium as insurance revenue. On the Edison International consolidated statements of income, the EIS insurance revenue was eliminated with SCE's insurance expense, therefore the SCE customer revenues increased the earnings of Edison International. The amount of insurance expense and corresponding revenue was $44 million for the year ended December 31, 2023. The expected insurance recoveries from previously purchased wildfire-related insurance from EIS included in SCE's consolidated balance sheets were $303 million and $355 million at December 31, 2024 and December 31, 2023, respectively. The expense for wildfire-related insurance premiums paid to EIS was $132 million and $213 million for the years ended December 31, 2023 and 2022, respectively. Edison International Foundation ("EIXF") is an unconsolidated not-for-profit organization. Edison International does not have title to, and cannot receive contributions back from, EIXF. Edison International made contributions to EIXF of $19 million for the year ended December 31, 2024, which was reflected in "Other income, net" on Edison International's consolidated statements of income. There were no contributions in 2023 and 2022.

Schedule I - Condensed Financia

Schedule I - Condensed Financial Information of Parent	12 Months Ended
	Dec. 31, 2024
Condensed Financial Information Disclosure [Abstract]
Schedule I - Condensed Financial Information of Parent	SCHEDULES SUPPLEMENTING FINANCIAL STATEMENTS EDISON INTERNATIONAL SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT CONDENSED BALANCE SHEETS December 31, (in millions) 2024 2023 Assets: Cash and cash equivalents $ 4 $ 1 Other current assets 606 441 Total current assets 610 442 Investments in subsidiaries 20,630 20,026 Deferred income taxes 760 700 Other long-term assets 67 58 Total assets $ 22,067 $ 21,226 Liabilities and equity: Short-term debt $ 445 $ 246 Current portion of long-term debt 800 500 Other current liabilities 639 598 Total current liabilities 1,884 1,344 Long-term debt 4,268 4,019 Other long-term liabilities 350 362 Total equity 15,565 15,501 Total liabilities and equity $ 22,067 $ 21,226 EDISON INTERNATIONAL SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT CONDENSED STATEMENTS OF INCOME For the Years Ended December 31, 2024, 2023 and 2022 (in millions) 2024 2023 2022 Interest income $ 3 $ 2 $ 3 Operating, interest and other expenses 342 299 209 Loss before equity in earnings of subsidiaries (339) (297) (206) Equity in earnings of subsidiaries 1,610 1,498 867 Income before income taxes 1,271 1,201 661 Income tax benefit (100) (83) (56) Net income 1,371 1,284 717 Preferred stock dividend requirements of Edison International 87 87 105 Net income available to Edison International common shareholders $ 1,284 $ 1,197 $ 612 CONDENSED STATEMENTS OF COMPREHENSIVE INCOME For the Years Ended December 31, 2024, 2023 and 2022 (in millions) 2024 2023 2022 Net income $ 1,371 $ 1,284 $ 717 Other comprehensive income, net of tax 9 2 43 Comprehensive income $ 1,380 $ 1,286 $ 760 EDISON INTERNATIONAL SCHEDULE I – CONDENSED FINANCIAL INFORMATION OF PARENT CONDENSED STATEMENTS OF CASH FLOWS For the Years Ended December 31, 2024, 2023 and 2022 (in millions) 2024 2023 2022 Net cash provided by operating activities $ 1,097 $ 1,148 $ 1,133 Cash flows from financing activities: Long-term debt issued 1,049 1,549 945 Long-term debt issuance costs (7) (16) (6) Long-term debt repaid (500) (400) (700) Short-term debt issued — 370 1,000 Short-term debt repaid (15) (1,356) — Common stock issued 12 20 13 Common stock repurchased (200) — — Preferred stock repurchased (28) (289) — Payable due to affiliates — (3) (14) Commercial paper borrowing (repayments), net 214 139 89 Payments for stock-based compensation (24) (5) (8) Receipts for stock-based compensation 206 71 72 Common stock dividends paid (1,198) (1,112) (1,050) Preferred stock dividends paid (88) (108) (99) Net cash (used in) provided by financing activities (579) (1,140) 242 Cash flows from investing activities: Capital contributions to affiliate (516) (15) (1,426) Dividends from affiliate 1 4 3 Net cash used in investing activities: (515) (11) (1,423) Net increase (decrease) in cash and cash equivalents 3 (3) (48) Cash and cash equivalents, beginning of year 1 4 52 Cash and cash equivalents, end of year $ 4 $ 1 $ 4 Note 1. Basis of Presentation The accompanying condensed financial statements of Edison International Parent should be read in conjunction with the consolidated financial statements and notes thereto of Edison International and subsidiaries ("Registrant") included in this Form 10-K. Edison International Parent's significant accounting policies are consistent with those of the Registrant, SCE and other wholly owned and controlled subsidiaries. Dividends Received Edison International Parent received cash dividends from SCE of $1.4 billion, $1.4 billion and $1.3 billion in 2024, 2023 and 2022, respectively. Dividend Restrictions For information on Edison International Parent dividend restrictions, see "Notes to Consolidated Financial Statements—Note 1. Summary of Significant Accounting Policies—SCE Dividends" and "—Edison International Dividends." Note 2. Debt and Equity Financing Long-Term Debt The following table summarizes Edison International Parent's long-term debt at December 31, 2024: (in millions) 4.95% Senior Note due 2025 $ 400 4.70% Senior Note due 2025 400 5.75% Senior Note due 2027 600 4.125% Senior Note due 2028 550 5.25% Senior Note due 2028 600 6.95% Senior Note due 2029 550 5.45% Senior Note due 2029 500 5.25% Senior Note due 2032 550 8.125% Junior Subordinated Note due 2053 500 7.875% Junior Subordinated Note due 2054 450 For information on Edison International Parent's material provisions on long-term debt and credit facility, see "Notes to Consolidated Financial Statements—Note 5. Debt and Credit Agreements—Liens and Security Interests" and "—Credit Agreements and Short-Term Debt." Common and Preferred Stock For information on Edison International Parent common stock and preferred stock, see "Notes to Consolidated Financial Statements—Note 14. Equity." Note 3. Related-Party Transactions Edison International's Parent expense from services provided by SCE was $2 million in 2024, $2 million in 2023 and $2 million in 2022. Edison International Parent's interest expense from loans due to affiliates was $2 million in 2024, $2 million in 2023 and $3 million in 2022. Edison International Parent had current related-party receivables of $571 million and $400 million and current related-party payables of $186 million and $185 million at December 31, 2024 and 2023, respectively. Edison International Parent had long-term related-party payables of $98 million and $112 million at December 31, 2024 and 2023, respectively. For a discussion of Edison International Parent's contribution to Edison International Foundation for the year ended December 31, 2024, see "Notes to Consolidated Financial Statements—Note 18. Related Party Transactions". Note 4. Contingencies For a discussion of material contingencies see "Notes to Consolidated Financial Statements—Note 8. Income Taxes" and "—Note 12. Commitments and Contingencies."

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Dec. 31, 2024
Trading Arrangements, by Individual
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

Insider Trading Policies and Pr

Insider Trading Policies and Procedures	12 Months Ended
	Dec. 31, 2024
Insider Trading Policies and Procedures [Line Items]
Insider Trading Policies and Procedures Adopted	true

Cybersecurity Risk Management a

Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Cybersecurity presents an ever-evolving challenge to the electric power industry and Edison International and SCE have identified cybersecurity as a key enterprise risk. SCE's operations require the continuous availability of critical information and operational technology systems, sensitive customer and employee data, and infrastructure information, all of which are targets for malicious actors. Cybersecurity attacks, which can arise from external actors, internal threats, or through SCE's supply chain, are continually becoming more frequent and more sophisticated. SCE's grid modernization efforts and the transition to a more connected grid, including incorporating communication and operating technologies aimed at enabling SCE to respond faster, operate its systems more efficiently and reliably, and incorporate DERs at a greater level, also increases SCE’s vulnerability to cybersecurity attacks. To SCE's knowledge it has not experienced a material cybersecurity incident to date. SCE’s increased reliance on technology necessarily increases cybersecurity risk. Cybersecurity incidents that may cause a major disruption of SCE's operations, and therefore may materially affect Edison International and SCE's financial condition, operations, and business reputation, include cyber attacks designed to compromise or exfiltrate data (e.g., ransomware attacks), damage or destroy systems, interrupt availability, conduct future malicious actions, and/or gain control of or otherwise interrupt the operation of SCE’s electric grid. For additional information on risks from cybersecurity threats that may have a material effect on Edison International and SCE, see the "Risks Relating to Edison International and Southern California Edison Company—Cybersecurity and Physical Security Risks."
Cybersecurity Risk Management Processes Integrated [Flag]	true
Cybersecurity Risk Management Processes Integrated [Text Block]	SCE's grid modernization efforts and the transition to a more connected grid, including incorporating communication and operating technologies aimed at enabling SCE to respond faster, operate its systems more efficiently and reliably, and incorporate DERs at a greater level, also increases SCE’s vulnerability to cybersecurity attacks
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false
Cybersecurity Risk Board of Directors Oversight [Text Block]	Risk Management, Strategy and Oversight SCE assesses and monitors cybersecurity risks to current infrastructure, new projects, and third parties, including vendors. SCE maintains incident response plans, utilizes cybersecurity incident response exercises, performs targeted audits, leverages third party assessments and uses the National Institute of Standards and Technology (NIST) Cybersecurity Framework (CSF) as a guideline to identify, evaluate and manage material risks from cybersecurity threats. SCE also engages consultants, and coordinates with the Federal government and industry peers, to assist in identifying, evaluating and managing its cybersecurity risks, and uses contractual terms to establish cybersecurity requirements with certain third parties. Identified cybersecurity risks are documented and presented to management to review and advise on cybersecurity strategies and mitigation measures. Based on management reviews, cybersecurity strategies and remediation plans are developed or adjusted to address pertinent risks. Edison International and SCE leverage training, policies, technical and procedural controls, and mitigation plans to address risks from cybersecurity t hreats. Management has established a cybersecurity oversight group comprised of a multidisciplinary senior management team, including its Vice President of Enterprise Risk Management, to monitor and provide strategic direction for the prevention, detection, mitigation, and remediation of risks from cybersecurity threats. A Boards of Directors’ liaison regularly attends meetings of the cybersecurity oversight group and provides reports to the Safety and Operations Committees of the Boards of Directors. Other members of the Boards of Directors are invited to attend meetings and typically attend at least one meeting annually. The Edison International and SCE Audit and Finance Committees of the Boards of Directors oversee enterprise risk management, including risks from cybersecurity threats. Annually, Edison International and SCE’s enterprise risk management team conducts a review of enterprise risks, including risks from cybersecurity threats, and presents the results of its review to management and the Audit and Finance Committees. In addition, the Boards of Directors have assigned primary responsibility for cybersecurity operations oversight to the Edison International and SCE Safety and Operations Committees, which receive regular cybersecurity updates from SCE’s Chief Security Officer on specific topics, including the dynamic cybersecurity landscape and defense and risk mitigation strategies. To inform its oversight over cybersecurity threats, SCE’s Chief Security Officer also presents to the full Boards of Directors annually. The Boards of Directors also receive a periodic cybersecurity report from an external SCE consultant that includes an assessment of SCE's cybersecurity program and organization. SCE’s Chief Security Officer has primary responsibility for assessing and managing risks from cybersecurity threats, and serves as Edison International and SCE’s chief information security officer. SCE’s Chief Security Officer has extensive experience in the cybersecurity industry, including previous experience in cybersecurity roles at Southern Company, the MITRE Corporation, the National Institute of Standards and Technology (NIST), and the Federal Bureau of Investigation (FBI). SCE's Chief Security Officer earned a bachelor’s degree in computer information systems from Clemson University and is a Certified Information Systems Security Professional (CISSP). For additional information on the Edison International Board of Directors cybersecurity related experience and oversight of cybersecurity risk management, see Edison International’s Proxy Statement under the headings "Director Skills Matrix" and "Board Oversight of Strategy, Risk and ESG."
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]	The Edison International and SCE Audit and Finance Committees of the Boards of Directors oversee enterprise risk management, including risks from cybersecurity threats
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]	A Boards of Directors’ liaison regularly attends meetings of the cybersecurity oversight group and provides reports to the Safety and Operations Committees of the Boards of Directors
Cybersecurity Risk Role of Management [Text Block]	The Edison International and SCE Audit and Finance Committees of the Boards of Directors oversee enterprise risk management, including risks from cybersecurity threats. Annually, Edison International and SCE’s enterprise risk management team conducts a review of enterprise risks, including risks from cybersecurity threats, and presents the results of its review to management and the Audit and Finance Committees. In addition, the Boards of Directors have assigned primary responsibility for cybersecurity operations oversight to the Edison International and SCE Safety and Operations Committees, which receive regular cybersecurity updates from SCE’s Chief Security Officer on specific topics, including the dynamic cybersecurity landscape and defense and risk mitigation strategies.
Cybersecurity Risk Management Positions or Committees Responsible [Flag]	true
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]	SCE’s Chief Security Officer also presents to the full Boards of Directors annually. The Boards of Directors also receive a periodic cybersecurity report from an external SCE consultant that includes an assessment of SCE's cybersecurity program and organization.
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]	SCE’s Chief Security Officer has extensive experience in the cybersecurity industry, including previous experience in cybersecurity roles at Southern Company, the MITRE Corporation, the National Institute of Standards and Technology (NIST), and the Federal Bureau of Investigation (FBI). SCE's Chief Security Officer earned a bachelor’s degree in computer information systems from Clemson University and is a Certified Information Systems Security Professional (CISSP).
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]	SCE’s Chief Security Officer also presents to the full Boards of Directors annually. The Boards of Directors also receive a periodic cybersecurity report from an external SCE consultant that includes an assessment of SCE's cybersecurity program and organization
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]	true

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2024
Accounting Policies [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Edison International is the ultimate parent holding company of SCE and Edison Energy, LLC, doing business as Trio. 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 across Southern, Central, and Coastal California. Trio is a global energy advisory firm providing integrated sustainability and energy solutions to commercial, industrial, and institutional customers. Trio's business activities are currently not material to report as a separate business segment, and SCE is the single reportable segment. See "Segment Information" below for further discussion. 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 accounting policies conform to GAAP, including the accounting principles for rate-regulated enterprises, which reflect the ratemaking policies of the CPUC and the FERC. SCE applies authoritative guidance for rate-regulated enterprises to the portion of its operations in which regulators set rates at levels intended to recover the estimated costs of providing service, plus a return on net investments in assets, or rate base. Regulators may also impose certain penalties or grant certain incentives. Due to timing and other differences in the collection of electric utility revenue, these accounting principles require an incurred cost that would otherwise be charged to expense by a non-regulated entity to be capitalized as a regulatory asset if it is probable that the cost is recoverable through future rates; and conversely the accounting principles require recording of a regulatory liability for amounts collected in rates to recover costs expected to be incurred in the future or amounts collected in excess of costs incurred and refundable to customers. In addition, SCE recognizes revenue and regulatory assets from alternative revenue programs, which enables the utility to adjust future rates in response to past activities or completed events, if certain criteria are met. SCE assesses at the end of each reporting period whether regulatory assets are probable of future recovery. See Note 11 for the composition of regulatory assets and liabilities. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reported period. Actual results could differ from those estimates. Certain prior period amounts have been conformed to the current period's presentation, including the separate presentation of accrued interest on Edison International's and SCE's consolidated balance sheets.
Segment Information	Segment Information
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash
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 which 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 increase in the provision of uncollectible accounts and write-offs for the year ended December 31, 2024, is driven primarily by consumer protection programs.
Inventory	Inventory SCE's inventory is primarily composed of materials, supplies and spare parts, and generally stated at weighted average cost or net realizable value when appropriate.
Emission Allowances and Energy Credits	Emission Allowances and Energy Credits SCE is allocated GHG allowances annually which it is then required to sell into quarterly auctions. GHG proceeds from the auctions are recorded as a regulatory liability to be refunded to customers. SCE purchases GHG allowances in quarterly auctions or from counterparties to satisfy its GHG emission compliance obligations and recovers such costs of GHG allowances from customers. GHG allowances held for use are classified as "Other current assets" on the consolidated balance sheets and are stated, similar to an inventory method, at the lower of weighted average cost or market. SCE will evaluate GHG allowances for impairment upon a triggering event that would indicate SCE might not recover the full cost of an allowance. SCE had GHG allowances held for use of $66 million and $128 million at December 31, 2024 and 2023, respectively. GHG emission obligations were $22 million and $117 million at December 31, 2024 and 2023, respectively, and are classified as "Other current liabilities" on the consolidated balance sheets.
Property, Plant and Equipment	Property, Plant and Equipment SCE plant additions, including replacements and betterments, are capitalized. Direct material and labor and indirect costs such as construction overhead, administrative and general costs, employee benefits, and property taxes are capitalized as part of plant additions. The CPUC authorizes a capitalization rate for each of the indirect costs which are allocated to each project based on either labor or total costs. Estimated useful lives authorized by the CPUC in the 2021 GRC and weighted average useful lives of SCE's property, plant and equipment, are as follows: Estimated Useful Lives Weighted Average Generation plant 10 years to 54 years 39 years Distribution plant 20 years to 67 years 50 years Transmission plant 30 years to 65 years 53 years General plant and other 5 years to 60 years 19 years Depreciation of utility property, plant and equipment is computed on a straight-line, remaining-life basis. SCE's depreciation expense was $2.8 billion, $2.5 billion and $2.5 billion for 2024, 2023 and 2022, respectively. Depreciation expense stated as a percentage of average original cost of depreciable utility plant was, on a composite basis, 4.3%, 4.1% and 4.2% for 2024, 2023 and 2022, respectively. The original costs of retired property are charged to accumulated depreciation. See Note 2 for further information. Nuclear fuel for Palo Verde is recorded as utility plant (nuclear fuel in the fabrication and installation phase is recorded as construction in progress) in accordance with CPUC ratemaking procedures. Palo Verde nuclear fuel is amortized using the units of production method. Allowance for funds used during construction ("AFUDC") represents the estimated cost of debt and equity funds that finance utility-plant construction and is capitalized during certain plant construction. AFUDC is recovered in rates through depreciation expense over the useful life of the related asset. Equity AFUDC represents a method to compensate SCE for the estimated cost of equity used to finance utility plant additions and is recorded as part of construction in progress. The following table summarizes SCE's AFUDC related to debt and equity: Years ended December 31, (in millions) 2024 2023 2022 Debt AFUDC 1 $ 82 $ 74 $ 53 Equity AFUDC 2 187 157 137 1 Reflected as a reduction of "Interest expense" on the consolidated statements of income. 2 Reflected in "Other income" on the consolidated statements of income. Major Maintenance Major maintenance costs for SCE's facilities and equipment are expensed as incurred.
Impairment of Long-Lived Assets	Impairment of Long-Lived Assets Impairments of long-lived assets are evaluated based on a review of estimated future cash flows expected to be generated whenever events or changes in circumstances indicate that the carrying amount of such investments or assets may not be recoverable. If the carrying amount of a long-lived asset exceeds expected future cash flows, undiscounted and without interest charges, an impairment loss is recognized in the amount of the excess of fair value over the carrying amount. Fair value is determined via market, cost and income-based valuation techniques, as appropriate. Accounting principles for rate-regulated enterprises also require recognition of an impairment loss if it becomes probable that the regulated utility will abandon a plant investment, or if it becomes probable that the cost of a recently completed plant will be disallowed, either directly or indirectly, for ratemaking purposes, and a reasonable estimate of the disallowance amount can be made. Upon approval of the TKM Settlement Agreement, SCE will record an impairment charge of approximately $10 million in the first quarter of 2025. For further information on the TKM Settlement Agreement, see "Note 12. Commitments and Contingencies—Contingencies—Southern California Wildfires and Mudslides."
Initial and annual contributions to the wildfire insurance fund established pursuant to California Assembly Bill 1054 (the "Wildfire Insurance Fund" and "AB 1054")	Initial and annual contributions to the wildfire insurance fund established pursuant to California Assembly Bill 1054 (the "Wildfire Insurance Fund" and "AB 1054") Edison International and SCE accounted for the contributions to the Wildfire Insurance Fund similarly to prepaid insurance. No period of coverage was provided in AB 1054, therefore expense is being allocated to periods ratably based on an estimated period of coverage. At December 31, 2024 and 2023, Edison International and SCE had a $1.9 billion and a $2.0 billion long-term asset, respectively, as well as a $138 million and $204 million current asset, respectively, reflected as "Wildfire Insurance Fund contributions" in their consolidated balance sheets for the initial $2.4 billion contribution made during 2019 and the present value of annual contributions SCE committed to make to the Wildfire Insurance Fund, reduced by amortization. At December 31, 2024 and 2023, long-term liabilities of $363 million and $450 million, respectively, have been reflected in "Other deferred credits and other long-term liabilities" for the present value of unpaid contributions. Contributions were discounted to the present value using US treasury interest rates at the date SCE committed to participate in the Wildfire Insurance Fund. Edison International and SCE reassesses the period of coverage of the fund at least annually in the first quarter each year, and adjustments are applied on a prospective basis. At December 31, 2024, 2023 and 2022, the asset was amortized based on an estimated period of coverage of 20 years, 15 years, and 15 years, respectively. All expenses related to the contributions are being reflected in "Wildfire Insurance Fund Expense" in the consolidated statements of income. Changes in the estimated period of coverage provided by the Wildfire Insurance Fund could lead to material changes in future expense recognition. In estimating the period of coverage, Edison International and SCE used Monte Carlo simulations based on historical data from wildfires caused by electrical utility equipment to estimate expected losses, using ten years (2014 – 2023) of available historical data in 2024, nine years (2014 – 2022) of available historical data in 2023, and eight years (2014 – 2021) of available historical data in 2022. The details of the operation of the Wildfire Insurance Fund and estimates related to claims by SCE, PG&E, and SDG&E against the fund have been applied to the expected loss simulations to estimate the period of coverage of the fund. The most sensitive inputs to the estimated period of coverage are the expected frequency of wildfire events caused by investor-owned utility electrical equipment and the estimated costs associated with those forecasted events. These inputs are most affected by the historical data used in estimating expected losses. There were fires in the service area of SCE, PG&E and SDG&E since the inception of the Wildfire Insurance Fund, including fires for which the cause is unknown, which may in the future be determined to be covered by the Wildfire Insurance Fund and have not been reflected or estimated in this analysis will be included in this analysis at that time. As of the date of this filing, SCE is continuing to perform its annual assessment for 2025 to reassess its estimate of the life of the Wildfire Insurance Fund. Edison International and SCE assess the Wildfire Insurance Fund contribution assets for impairment each reporting period. An impairment will be recorded if the recorded asset exceeds SCE's ability to benefit from the remaining coverage provided by the Wildfire Insurance Fund.
Nuclear Decommissioning and Asset Retirement Obligations	Nuclear Decommissioning and Asset Retirement Obligations The fair value of a liability for an ARO is recorded in the period in which it is incurred, including a liability for the fair value of a conditional ARO, if the fair value can be reasonably estimated even though uncertainty exists about the timing and/or method of settlement. When an ARO liability is initially recorded, SCE capitalizes the cost by increasing the carrying amount of the related long-lived asset. For each subsequent period, the liability is increased for accretion expense and the capitalized cost is depreciated over the useful life of the related asset. SCE has not recorded an ARO for assets that are expected to operate indefinitely or where SCE cannot estimate a settlement date (or range of potential settlement dates). As such, ARO liabilities are not recorded for certain retirement activities, including certain hydroelectric facilities. The following table summarizes the changes in SCE's ARO liability: December 31, (in millions) 2024 2023 Beginning balance $ 2,666 $ 2,754 Accretion 1 137 144 Revisions (2) (3) Liabilities settled (221) (229) Ending balance $ 2,580 $ 2,666 1 An ARO represents the present value of a future obligation. Accretion is an increase in the liability to account for the time value of money resulting from discounting. AROs related to decommissioning of SCE's nuclear power facilities are based on site-specific studies conducted as part of each NDCTP conducted before the CPUC. ARO are revised when updated site-specific decommissioning cost estimates are available. The ARO for decommissioning SCE's San Onofre and Palo Verde nuclear power facilities was $2.1 billion as of December 31, 2024. The liability to decommission SCE's nuclear power facilities is based on a 2024 decommissioning study, filed as part of the 2024 NDCTP, for San Onofre Unit 1, 2, and 3 and a 2023 decommissioning study for Palo Verde. Decommissioning of San Onofre Unit 1 began in 1999 and the transfer of spent nuclear fuel from Unit 1 to dry cask storage in the Independent Spent Fuel Storage Installation ("ISFSI") 1 was completed in 2005. Major decommissioning work for Unit 1 has been completed except for certain underground work. Decommissioning of San Onofre Units 2 and 3 began in June 2013 and the transfer of spent nuclear fuel from San Onofre Units 2 and 3 to dry cask storage in the two ISFSIs was completed in August 2020. In August 2020, SCE commenced, and is currently conducting major decommissioning activities in accordance with the terms of the Coastal Developmental Permit for San Onofre Units 2 and 3. Due to regulatory recovery of SCE's nuclear decommissioning expense, prudently incurred costs for nuclear decommissioning activities do not affect SCE's earnings. Through the ratemaking process, SCE has substantially collected in rates, as a component of depreciation expense, all amounts for the future decommissioning of its nuclear assets and has placed those amounts in independent trusts. Amounts collected in rates in excess of the ARO liability are classified as ARO regulatory liabilities. See Note 11 for further information. Amortization of the ARO asset (included within the unamortized nuclear investment) and accretion of the ARO liability are deferred as decreases to the ARO regulatory liability account, resulting in no impact on earnings. Changes in the estimated costs, timing of decommissioning or the assumptions underlying these estimates could cause material revisions to the estimated total cost to decommission. SCE currently estimates that it will spend approximately $7.6 billion through 2098 to decommission its nuclear facilities. This estimate is based on SCE's decommissioning cost methodology used for ratemaking purposes, escalated at rates ranging from 2.1% to 7.5% (depending on the cost element) annually. These costs are expected to be funded from independent decommissioning trusts. SCE estimates annual after-tax earnings on the decommissioning funds of 3.6% to 5.7% dependent on asset class. If the estimated costs increase, the assumed return on trust assets is not earned, or costs escalate at higher rates, SCE expects that additional funds needed for decommissioning will be recoverable through future rates, subject to a reasonableness review. See Note 10 for further information. SCE's nuclear decommissioning costs are subject to CPUC review through the triennial regulatory proceedings. SCE's nuclear decommissioning trust investments primarily consist of fixed income investments that are classified as available-for-sale and equity investments. Due to regulatory mechanisms, investment earnings and realized gains and losses have no impact on earnings. Unrealized gains and losses on decommissioning trust funds, including impairment, increase or decrease the trust assets and the related regulatory asset or liability and have no impact on electric utility revenue or decommissioning expense. SCE reviews each fixed income security for impairment on the last day of each month. If the fair value on the last day of the month is less than the amortized cost for that security, SCE impairs the disclosed amortized cost. If the fair value is greater or less than the carrying value for that security at the time of sale, SCE recognizes a related realized gain or loss, respectively.
Deferred Financing Costs	Deferred Financing Costs Debt premium, discount, and issuance expenses incurred in connection with obtaining financing are deferred and amortized over the life of each debt issue. These deferred amounts are recorded as an offset to long-term debt. See Note 5 for further details. Under CPUC ratemaking procedures, SCE's debt reacquisition expenses are amortized over the remaining life of the reacquired debt, or if refinanced, the life of the new debt. The unamortized losses on reacquired debt are reflected as long-term "Regulatory assets" in the consolidated balance sheets. See Note 11 for further details. Amortization of deferred financing costs charged to interest expense is as follows: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Amortization of deferred financing costs charged to interest expense $ 41 $ 39 $ 37 $ 34 $ 32 $ 31
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. SCE's Revenue from Contracts with Customers Provision of Electricity SCE principally generates revenue through supplying and delivering electricity to its customers. Rates charged to customers are based on tariff rates, approved by the CPUC and FERC. Starting with SCE's 2021 GRC, revenue is authorized through quadrennial GRC proceedings, which are intended to provide SCE a reasonable opportunity to recover its costs and earn a return on its CPUC-jurisdictional rate base. The CPUC sets an annual revenue requirement for the base year and the remaining three years are set by a methodology established in the GRC proceeding. As described above, SCE also earns revenue, with no return, to recover costs for power procurement, certain wildfire related expenses and other activities. Revenue is authorized by the FERC through a formula rate which is intended to provide SCE a reasonable opportunity to recover transmission capital and operating costs that are prudently incurred, including a return on its FERC-jurisdictional rate base. Under the operation of the formula rate, transmission revenue is updated to actual cost of service annually. For SCE's electricity sales for both residential and non-residential customers, SCE satisfies the performance obligation of delivering electricity over time as the customers simultaneously receive and consume the delivered electricity. Energy sales are typically on a month-to-month implied contract for transmission, distribution and generation services. Revenue is recognized over time as the energy is supplied and delivered to customers and the respective revenue is billed and paid on a monthly basis. CPUC and FERC rates decouple authorized revenue from the volume of electricity sales and the price of energy procured so that SCE has the opportunity to receive revenue equal to amounts authorized by the relevant regulatory agencies. As a result, the volume of electricity sold does not have a direct impact on SCE's financial results. See Note 7 for further information on SCE's revenue. Sales and Use Taxes SCE bills certain sales and use taxes levied by state or local governments to its customers. Included in these sales and use taxes are franchise fees, which SCE pays to various municipalities (based on contracts with these municipalities) in order to operate within the limits of the municipality. SCE bills these franchise fees to its customers based on a CPUC-authorized rate. These franchise fees, which are required to be paid regardless of SCE's ability to collect from the customer, are accounted for on a gross basis. SCE's franchise fees billed to customers were $183 million, $168 million, and $172 million for the years ended December 31, 2024, 2023, and 2022, respectively. When SCE acts as an agent for sales and use tax, the taxes are accounted for on a net basis. Amounts billed to and collected from customers for these taxes are remitted to the taxing authorities and are not recognized as electric utility revenue. SCE's Alternative Revenue Programs The CPUC and FERC have authorized additional, alternative revenue programs which adjust billings for the effects of broad external factors or provide for additional billings if the utility achieves certain objectives. These alternative revenue programs allow SCE to recover costs that SCE has been authorized to pass on to customers, including costs of certain capital and operations and maintenance activities, costs to purchase electricity and natural gas, and to fund public purpose, demand response, and customer energy efficiency programs, and earn a reasonable return. In general, revenue is recognized for these alternative revenue programs at the time the costs are incurred, or at the time when specific events permitting billing of the additional revenues have been completed. SCE begins recognizing revenues for these programs when a program has been established by an order from either the CPUC or FERC that allows for automatic adjustment of future rates, the amount of revenue for the period is objectively determinable and probable of recovery and the revenue will be collected within 24 months following the end of the annual period.
Power Purchase Agreements	Power Purchase Agreements SCE enters into power purchase agreements ("PPAs") in the normal course of business. A power purchase agreement may be considered a variable interest in a variable interest entity ("VIE"). If SCE is the primary beneficiary in the VIE, SCE is required to consolidate the VIE. None of SCE's PPAs resulted in consolidation at December 31, 2024 and 2023. See Note 3 for further discussion of PPAs that are considered variable interests. A PPA may also contain a lease for accounting purposes. See "Leases" below and Note 12 and Note 13 for further discussion of SCE's PPAs. A PPA that does not contain a lease may be classified as a derivative which is recorded at fair value on the consolidated balance sheets, unless the PPA is eligible for an election to designate as a normal purchase or sale, which is accounted for on an accrual basis as an executory contract. PPAs that do not meet the above classifications are accounted for on an accrual basis.
Derivatives Instruments	Derivative Instruments SCE records derivative instruments on its consolidated balance sheets as either assets or liabilities measured at fair value unless otherwise exempted from derivative treatment as normal purchases or sales. The normal purchases and sales exception requires, among other things, physical delivery in quantities expected to be used or sold over a reasonable period in the normal course of business. Realized gains and losses from SCE's derivative instruments are expected to be recovered from or refunded to customers through regulatory mechanisms and, therefore, SCE's fair value changes have no impact on purchased power expense or earnings. SCE does not use hedge accounting for derivative transactions due to regulatory accounting treatment. Where SCE's derivative instruments are subject to a master netting agreement and certain criteria are met, SCE presents its derivative assets and liabilities on a net basis on its consolidated balance sheets. In addition, derivative positions are offset against margin and cash collateral deposits. The results of derivative activities are recorded as part of cash flows from operating activities on the consolidated statements of cash flows. See Note 6 for further information on derivative instruments.
Leases	Leases A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified assets for a period of time in exchange for consideration. An entity controls the use when it has a right to obtain substantially all of the benefits from the use of the asset and has the right to direct the use. SCE determines if an arrangement is a lease at contract inception. For all classes of underlying assets, except battery storage assets where each component is separately accounted for, SCE accounts for lease and non-lease components as a single lease component. Lease liabilities are recognized based on the present value of the lease payments over the lease term at the commencement date. SCE calculates and uses the rate implicit in the lease if the information is readily available or if not available, SCE uses its incremental borrowing rate in determining the present value of lease payments. Incremental borrowing rates are comprised of underlying risk-free rates and secured credit spreads relative to first mortgage bonds with like tenors of lease term durations. Lease right-of-use ("ROU") assets are based on the liability, subject to adjustments, such as lease incentives. The ROU assets also include any lease payments made at or before the commencement date. SCE excludes variable lease payments in measuring lease assets and lease liabilities. SCE's lease terms include options to extend or terminate the lease when it is reasonably certain that such options will be exercised. SCE elected to exclude from the balance sheet short-term leases of one year or less. SCE enters into power purchase agreements that may contain leases. This occurs when a power purchase agreement designates a specific power plant, SCE obtains substantially all of the economic benefits from the use of the plant and has the right to direct the use of the plant. SCE also enters into a number of agreements to lease property and equipment in the normal course of business, primarily related to vehicles, office space and other equipment. See Note 13 for further information on leases. Edison International Parent and Other's leases primarily relate to Trio, which are immaterial to Edison International.
Stock-Based Compensation	Stock-Based Compensation Stock options, performance shares, deferred stock units, and restricted stock units have been granted under Edison International's long-term incentive compensation programs. For equity awards that are settled in common stock, Edison International either issues new common stock, or uses a third party to purchase shares from the market and deliver such shares for the settlement of the awards. Stock options, performance shares, deferred stock units and restricted stock units are settled in common stock. For awards that are otherwise settled entirely in common stock, Edison International withholds or sells shares or substitutes cash awards to the extent necessary to satisfy applicable tax withholding obligations or government levies. Stock-based compensation expense is recognized, net of estimated forfeitures, on a straight-line basis over the requisite service period based on estimated fair values. For equity awards paid in common stock, fair value is determined at the grant date. For equity awards that have market conditions defined in the grants, expense is recognized based on grant date fair value if the requisite service period is fulfilled. However, with respect to the portion of the performance shares payable in common stock that are subject to financial performance conditions defined in the grants, the number of performance shares expected to be earned is subject to revision and updated at each reporting period, with a related adjustment to compensation expense. For awards granted to retirement-eligible participants, stock compensation expense is recognized on a prorated basis over the initial year. For awards granted to participants who become eligible for retirement during the requisite service period, stock compensation expense is recognized over the period between the date of grant and the date the participant first becomes eligible for retirement. Edison International and SCE estimate the number of awards that are expected to vest rather than account for forfeitures when they occur. Share-based payments may create a permanent difference between the amount of compensation expense recognized for book and tax purposes. The tax impact of this permanent difference is recognized in earnings in the period it is created. See Note 9 for further information. Employee Stock Purchase Plan The Edison International Employee Stock Purchase Plan ("ESPP"), effective beginning July 2021, allows eligible employees to make purchases of Edison International's common stock. The maximum aggregate numbers of shares that may be issued under the ESPP is 3,000,000 shares. Eligible employees may authorize payroll deductions of between 1% and 10% of their eligible base compensation, to purchase shares of common stock at 97% of the market price on the last day of each six months offering period. An eligible employee may purchase up to $25,000 worth of Edison International's common stock per calendar year under the ESPP. The ESPP is considered noncompensatory and stock issuances under the ESPP are recorded directly in equity.
SCE Dividends	SCE Dividends CPUC holding company rules require that SCE's dividend policy be established by the SCE Board of Directors on the same basis as if SCE were a stand-alone utility company, and that the capital requirements of SCE, as deemed to be necessary to meet SCE's electricity service obligations, shall receive first priority from the Boards of Directors of both Edison International and SCE. In addition, the CPUC regulates SCE's capital structure which limits the dividends it may pay to its shareholders. The common equity component of SCE's CPUC authorized capital structure is 52% on a weighted average basis over the January 1, 2023 to December 31, 2025 compliance period ("Capital Structure Compliance Period"). The CPUC authorized capital structure differs from the capital structure calculated based on GAAP due to certain exclusions allowed by CPUC, including the impact of SCE's contributions to the Wildfire Insurance Fund under AB 1054. In August 2023, the CPUC issued a decision on SCE's application to the CPUC for an extension of the waiver of compliance with its equity ratio requirement that allows SCE to exclude from its equity ratio calculations (i) net charges accrued in connection with the 2017/2018 Wildfire/Mudslide Events and (ii) debt issued for the purpose of paying claims, and associated expenses, related to the 2017/2018 Wildfire/Mudslide Events up to an amount equal to the net charges accrued in connection with the 2017/2018 Wildfire/Mudslide Events. Under the decision, effective as of the beginning of the new cost of capital cycle on January 1, 2023, the CPUC also authorized SCE to exclude from its equity ratio calculations debt that exceeds the net charges accrued in connection with the 2017/2018 Wildfire/Mudslide Events due to the timing difference between the wildfire claims payment and the realization of the cash tax benefits. The temporary exclusion will lapse on August 31, 2025, or when determinations regarding cost recovery for both TKM and the Woolsey Fire are made, whichever comes earlier. In January 2025, the CPUC approved the TKM Settlement Agreement, under which SCE is allowed to permanently exclude any after-tax charges to equity associated with the costs disallowed or funded by shareholders in the TKM Settlement Agreement and the debt issued to finance those costs. If the CPUC has not made a determination regarding cost recovery related to the Woolsey Fire by August 31, 2025, SCE will file another application for a waiver of compliance with its equity ratio requirement. While the temporary exclusion is in place, SCE is required to notify the CPUC if an adverse financial event reduces SCE's spot equity ratio by more than one percent from the level most recently filed with the CPUC in the proceeding. The last spot equity ratio SCE filed with the CPUC in the proceeding did not exclude the then $1.8 billion net charge and was 45.2% as of December 31, 2018 (at the time the common equity component of SCE's CPUC authorized capital structure was required to remain at or above 48% on a weighted average basis over the applicable 37 -month period). SCE's spot equity ratio on December 31, 2018, would have been 48.7% had the $1.8 billion net charge at December 31, 2018 been excluded, therefore SCE will notify the CPUC if its spot ratio drops below 47.7% in any quarter. SCE monitors its compliance with the CPUC's equity ratio requirement based on the weighted average of the common equity component of SCE's CPUC authorized capital structure over the Capital Structure Compliance Period using its actual capital structure from the beginning of the Capital Structure Compliance Period through the reporting date together with forecasted performance and expected financing activities for the remainder of the Capital Structure Compliance Period. SCE expects to be compliant with its CPUC authorized capital structure at the end of the Capital Structure Compliance Period. SCE's ability to declare and pay common dividends may be restricted under the terms of its outstanding series of preference stock. For further information see Note 14. As a California corporation, SCE's ability to pay dividends is also governed by the California General Corporation Law. California law requires that for a dividend to be declared: (a) retained earnings must equal or exceed the proposed dividend, or (b) immediately after the dividend is made, the value of the corporation's assets must exceed the value of its liabilities plus amounts required to be paid, if any, in order to liquidate stock senior to the shares receiving the dividend. Additionally, a California corporation may not declare a dividend if it is, or as a result of the dividend would be, likely to be unable to meet its liabilities as they mature. Prior to declaring dividends, the SCE Board of Directors evaluates available information, including when applicable, information pertaining to wildfire events, to ensure that the California law requirements for the declarations are met. On February 27, 2025, SCE declared a dividend to Edison International of $430 million. The timing and amount of future dividends are also dependent on a number of other factors including SCE's requirements to fund other obligations and capital expenditures, and its ability to access the capital markets and generate operating cash flows and earnings. If SCE incurs significant costs related to catastrophic wildfires and is unable to recover such costs through insurance, the Wildfire Insurance Fund (for fires after July 12, 2019), or from customers or is unable to access capital markets on reasonable terms, SCE may be limited in its ability to pay future dividends to Edison International and its preference shareholders. Edison International Dividend Edison International's ability to declare and pay common dividends may be restricted under the terms of its outstanding preferred stock. For further information see Note 14. In December 2024, Edison International declared a 6.1% increase to the annual dividend rate from $3.12 per share to $3.31 per share. On February 27, 2025, Edison International declared a dividend of $0.8275 per share to be paid on April 30, 2025. Edison International intends to maintain its target payout ratio of 45% – 55% of SCE's core earnings.
Earnings Per Share	Earnings Per Share
Income Taxes	Income Taxes Edison International and SCE estimate their income taxes for each jurisdiction in which they operate. This involves estimating current period tax expense along with assessing temporary differences resulting from the differing treatment of items (such as depreciation) for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are included in the consolidated balance sheets. Income tax expense includes the current tax liability from operations and the change in deferred income taxes during the year. Interest income, interest expense, and penalties associated with income taxes are generally reflected in "Income tax expense (benefit)" on the consolidated statements of income. Investment tax credits are generally deferred and amortized to income tax expense over the lives of the related properties. The scope of projects eligible for investment tax credits was expanded in 2023 to include standalone energy storage projects. The Inflation Reduction Act provided an election that permits investment tax credits related to standalone energy storage projects to be returned to utility customers over a period that is shorter than the life of the related property. Edison International's eligible subsidiaries are included in Edison International's consolidated federal income tax and combined state tax returns. Edison International has tax-allocation and payment agreements with certain of its subsidiaries. Pursuant to an income tax-allocation agreement approved by the CPUC, SCE's tax liability is computed as if it filed its federal and state income tax returns on a separate return basis.
Severance Costs	Severance Costs Severance costs are recorded when it is probable that employees will be entitled to benefits under an existing plan and the amount can be reasonably estimated. As a result of current and probable reductions in workforce, SCE recorded estimated severance costs of $53 million for the year ended December 31, 2024. Severance costs are included in "Operation and maintenance" on the consolidated statements of income. The severance costs are partially offset by $3 million expected FERC recovery, which is recorded in "Operating Revenue" on the consolidated statements of income.
New Accounting Guidance	New Accounting Guidance Accounting Guidance Adopted In November 2023, the FASB issued an accounting standards update to enhance the disclosures related to public entities' reportable segments. The new guidance requires an entity with only one reportable segment to include all the required segment disclosures. Edison International and SCE each have one reportable segment, and have adopted this guidance for the year ended December 31, 2024. See "Segment Information" above for further information. Accounting Guidance Not Yet Adopted In December 2023, the FASB issued an accounting standards update requiring public entities to provide more disclosures primarily related to the income tax rate reconciliation and income taxes paid. The guidance also eliminates certain existing disclosure requirements related to uncertain tax positions and unrecognized deferred tax liabilities. The guidance is effective for annual periods after January 1, 2025 with early adoption permitted. The guidance is applied prospectively. Edison International and SCE are currently evaluating the impact of the new guidance. In November 2024, the FASB issued an accounting standards update requiring public entities to provide disaggregated disclosure of income statement expenses. The guidance does not change the expense captions an entity presents on the face of the income statement, rather, it requires disaggregation of certain expense captions into specified categories in disclosures within the footnotes to the financial statements. The guidance is effective for annual disclosure for the year ended December 31, 2027 and subsequent interim periods with early adoption permitted. The guidance is applied prospectively. Edison International and SCE are currently evaluating the impact of the new guidance.

Summary of Significant Accoun_3

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

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2024
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant, and Equipment	SCE's utility property, plant and equipment included in the consolidated balance sheets is composed of the following: December 31, (in millions) 2024 2023 Distribution $ 37,093 $ 34,573 Transmission 19,189 18,526 Generation 4,217 3,593 General plant and other 7,046 6,383 Accumulated depreciation (14,207) (12,910) 53,338 50,165 Construction work in progress 5,585 5,590 Nuclear fuel, at amortized cost 124 122 Total utility property, plant and equipment $ 59,047 $ 55,877
Schedule of Jointly Owned Utility Projects	The following is SCE's investment in each asset as of December 31, 2024: (in millions) Plant in Construction Accumulated Nuclear Fuel Total Ownership Transmission systems: Eldorado $ 448 $ 40 $ (71) $ — $ 417 71 % Pacific Intertie 356 8 (121) — 243 50 % Generating station: Palo Verde (nuclear) 2,249 62 (1,694) 124 741 16 % Total $ 3,053 $ 110 $ (1,886) $ 124 $ 1,401

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	12 Months Ended
	Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of SCE Recovery Funding LLC on balance sheets	The following table summarizes the impact of SCE Recovery Funding LLC on SCE's and Edison International's consolidated balance sheets. December 31, (in millions) 2024 2023 Other current assets $ 49 $ 53 Regulatory assets: non-current 1,512 1,558 Regulatory liabilities: current 30 34 Current portion of long-term debt 1 49 47 Other current liabilities 6 6 Long-term debt 1 1,468 1,515 1 The bondholders have no recourse to SCE. The long-term debt balance is net of unamortized debt issuance costs.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2024
Fair Value Disclosures [Abstract]
Schedule of Fair Value by Level within the Fair Value Hierarchy	The following table sets forth assets and liabilities of SCE that were accounted for at fair value by level within the fair value hierarchy: December 31, 2024 (in millions) Level 1 Level 2 Level 3 Netting and Collateral 1 Total Assets at fair value Derivative contracts $ — $ 1 $ 212 $ (1) $ 212 Other — 22 — — 22 Nuclear decommissioning trusts: Stocks 2 1,631 — — — 1,631 Fixed Income 3 975 1,618 — — 2,593 Short-term investments, primarily cash equivalents 128 39 — — 167 Subtotal of nuclear decommissioning trusts 4 2,734 1,657 — — 4,391 Total assets 2,734 1,680 212 (1) 4,625 Liabilities at fair value Derivative contracts — 47 — (47) — Total liabilities — 47 — (47) — Net assets $ 2,734 $ 1,633 $ 212 $ 46 $ 4,625 December 31, 2023 (in millions) Level 1 Level 2 Level 3 Netting and Collateral 1 Total Assets at fair value Derivative contracts $ — $ 3 $ 91 $ (3) $ 91 Money market funds and other 78 22 — — 100 Nuclear decommissioning trusts: Stocks 2 1,658 — — — 1,658 Fixed Income 3 923 1,421 — — 2,344 Short-term investments, primarily cash equivalents 169 104 — — 273 Subtotal of nuclear decommissioning trusts 4 2,750 1,525 — — 4,275 Total assets 2,828 1,550 91 (3) 4,466 Liabilities at fair value Derivative contracts — 77 — (77) — Total liabilities — 77 — (77) — Net assets $ 2,828 $ 1,473 $ 91 $ 74 $ 4,466 1 Represents the netting of assets and liabilities under master netting agreements and cash collateral. 2 Approximately 75% of SCE's equity investments were in companies located in the United States at December 31, 2024 and 2023. 3 Includes corporate bonds, which were diversified by the inclusion of collateralized mortgage obligations and other asset backed securities of $94 million and $106 million at December 31, 2024 and 2023, respectively. 4 Excludes net payables of $105 million and $102 million at December 31, 2024 and 2023, 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	The following table sets forth a summary of changes in SCE's fair value of Level 3 net derivative assets and liabilities: Years ended December 31, (in millions) 2024 2023 Fair value of net assets at beginning of period $ 91 $ 63 Sales (1) (1) Settlements 14 (40) Total realized/unrealized gains, net of losses 1 108 69 Fair value of net assets at end of period $ 212 $ 91 1 Due to regulatory mechanisms, SCE's realized and unrealized gains and losses are recorded as regulatory assets and liabilities.
Schedule of Valuation Techniques and Significant Inputs	The following table sets forth the significant unobservable inputs used to determine fair value for Level 3 CRR assets and liabilities: Fair Value Significant Range Weighted Assets Liabilities December 31, 2024 $ 212 $ — CAISO CRR auction prices $(4.64) - $50,048.16 $ 27.20 December 31, 2023 91 — CAISO CRR auction prices (6.44) - 16,574.36 2.74
Schedule of Long-Term Debt Fair Value	The carrying value and fair value of Edison International's and SCE's long-term debt (including current portion of long-term debt) are as follows: December 31, 2024 December 31, 2023 (in millions) Carrying Value 1 Fair Value 2 Carrying Value 1 Fair Value 2 Edison International $ 35,583 $ 33,160 $ 33,013 $ 31,315 SCE 30,515 27,994 28,494 26,712 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)	12 Months Ended
	Dec. 31, 2024
Debt Disclosure [Abstract]
Schedule of Long-term Debt	December 31, (in millions) 2024 2023 Edison International Parent and Other: Debentures and notes: 2025 – 2054 (4.125% to 8.125%) $ 5,100 $ 4,550 Current portion of long-term debt (800) (500) Unamortized debt discount/premium and issuance costs, net (32) (31) Total Edison International Parent and Other 4,268 4,019 SCE: First and refunding mortgage bonds: 2025 – 2053 (1.20% to 6.05%) 27,400 24,700 Pollution-control bonds: 2028 – 2035 (1.45% to 4.50%) 752 752 Debentures and notes: 2029 – 2053 (5.06% to 6.65%) 306 306 Senior secured recovery bonds 1 : 2028 – 2047 (0.86% to 5.11%) 1,532 1,579 Other long-term debt 2 706 1,322 Current portion of long-term debt (1,249) (2,197) Unamortized debt discount/premium and issuance costs, net (181) (165) Total SCE 29,266 26,297 Total Edison International $ 33,534 $ 30,316 1 The senior secured recovery bonds are payable only from and secured by the Recovery Property at SCE Recovery Funding LLC, and do not constitute a debt or other legal obligation of, or interest in, SCE or any of its affiliates, except for SCE Recovery Funding LLC. For further details, see Note 3. 2 Subsequent to December 31, 2024 and 2023, SCE issued first and refunding mortgage bonds which were used to partially pay down its commercial paper balance. As a result, SCE included the paydown amount of $706 million and $722 million in other long-term debt at December 31, 2024 and 2023, respectively. The 2023 amount also includes a $600 million term loan with an interest rate of adjusted term secured overnight financing rate ("SOFR") plus 0.90% that matured in 2024.
Schedule of First and Refunding Mortgage Bonds	Edison International and SCE long-term debt maturities over the next five years are as follows: (in millions) Edison SCE 2025 $ 2,049 $ 1,249 2026 1,900 1,900 2027 2,501 1,901 2028 2,942 1,792 2029 3,363 2,313
Summary for Status of Credit Facilities	The following table summarizes the status of the credit facilities at December 31, 2024: (in millions, except for rates) Borrower Termination Date SOFR plus (bps) Commitment Outstanding borrowings Outstanding letters of credit Amount available Edison International Parent 1, 3 May 2028 128 $ 1,500 $ 445 $ — $ 1,055 SCE 2, 3 May 2028 108 3,350 1,260 6 2,084 Total Edison International $ 4,850 $ 1,705 $ 6 $ 3,139 1 At December 31, 2024 and 2023, Edison International Parent had $444 million and $246 million outstanding commercial paper, net of discount of $1 million and zero, at a weighted-average interest rate of 4.86% and 5.82%, respectively. 2 At December 31, 2024 and 2023, SCE had $1,259 million and $1,554 million outstanding commercial paper, net of discount of $1 million and $4 million, at a weighted-average interest rate of 4.95% and 5.82%, respectively. This includes $706 million and $722 million, at December 31, 2024 and 2023, respectively, outstanding commercial paper reclassified from "Short-term debt" to "Long-term debt" on the consolidated balance sheets, due to subsequent debt refinancing. 3 The aggregate maximum principal amount under the Edison International Parent and SCE revolving credit facilities may be increased up to $2.0 billion and $4.0 billion, respectively, provided that additional lender commitments are obtained. In May 2024, Edison International Parent and SCE amended their credit facilities to extend the maturity date to May 2028, with additional one-year extension options.

Derivative Instruments (Tables)

Derivative Instruments (Tables)	12 Months Ended
	Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivatives Financial Position	The following table summarizes the gross and net fair values of SCE's commodity derivative instruments: December 31, 2024 (in millions) Derivative Assets Short-Term 1 Derivative Liabilities Short-Term 2 Commodity derivative contracts Gross amounts recognized $ 213 $ 47 Gross amounts offset in the consolidated balance sheets (1) (1) Cash collateral posted — (46) Net amounts presented in the consolidated balance sheets $ 212 $ — December 31, 2023 (in millions) Derivative Assets Short-Term 1 Derivative Liabilities Short-Term 2 Commodity derivative contracts Gross amounts recognized $ 94 $ 77 Gross amounts offset in the consolidated balance sheets (3) (3) Cash collateral posted — (74) Net amounts presented in the consolidated balance sheets $ 91 $ — 1 Included in "Other current assets" on SCE's consolidated balance sheets. 2
Schedule of Gains/(Losses) of SCE's Economic Hedging Activity	The following table summarizes the gains/(losses) of SCE's economic hedging activity: Years ended December 31, (in millions) 2024 2023 2022 Realized $ (409) $ (14) $ 178 Unrealized 149 (322) 310
Schedule of Notional Volumes of Derivatives	The following table summarizes the notional volumes of derivatives used for SCE's economic hedging activities: Economic Hedges Unit of December 31, Commodity 2024 2023 Electricity options, swaps and forwards Gigawatt hours 3,295 3,494 Natural gas options, swaps and forwards Billion cubic feet 4 31 Congestion revenue rights Gigawatt hours 8,141 35,011

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2024
Revenue from Contract with Customer [Abstract]
Summary of Revenue	The following table is a summary of SCE's revenue: Years ended December 31, (in millions) 2024 2023 2022 Revenue from contracts with customers Commercial $ 8,000 $ 7,333 $ 7,028 Residential 7,060 6,421 6,707 Other 3,335 3,266 3,025 Total revenue from contracts with customer 1 18,395 17,020 16,760 Alternative revenue program and other 2 (848) (745) 412 Total operating revenue $ 17,547 $ 16,275 $ 17,172 1 At December 31, 2024 and 2023, SCE's receivables related to contracts from customers were $2.9 billion and $2.5 billion, which included accrued unbilled revenue of $845 million and $741 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)	12 Months Ended
	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Components of Income Tax Expense (Benefit)	The components of income tax expense (benefit) by location of taxing jurisdiction are: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Current: Federal $ 1 $ — $ 2 $ 3 $ — $ — State 7 — 13 48 5 2 8 — 15 51 5 2 Deferred: Federal 59 101 (103) 118 149 (44) State (50) 7 (74) (49) 30 (67) 9 108 (177) 69 179 (111) Total $ 17 $ 108 $ (162) $ 120 $ 184 $ (109)
Components of Net Accumulated Deferred Income Tax Liability	The components of net accumulated deferred income tax liability are: Edison International SCE December 31, (in millions) 2024 2023 2024 2023 Deferred tax assets: Property $ 943 $ 894 $ 929 $ 877 Wildfire-related 1 254 356 251 354 Nuclear decommissioning trust assets in excess of nuclear ARO liability 373 380 373 380 Loss and credit carryforwards 2 3,703 3,486 2,242 2,103 Regulatory balances 610 626 610 626 Pension and postretirement benefits other than pensions, net 117 127 21 25 Leases 335 345 335 345 Other 177 159 167 147 Sub-total 6,512 6,373 4,928 4,857 Less: valuation allowance 3 17 17 — — Total 6,495 6,356 4,928 4,857 Deferred tax liabilities: Property 11,220 10,627 11,202 10,611 Regulatory balances 1,299 1,450 1,299 1,450 Nuclear decommissioning trust assets 373 380 373 380 Leases 335 345 335 345 Other 187 187 155 158 Total 13,414 12,989 13,364 12,944 Accumulated deferred income tax liability, net 4 $ 6,919 $ 6,633 $ 8,436 $ 8,087 1 Relates to estimated losses accrual for wildfire-related claims, net of expected recoveries from insurance and FERC customers, and contributions to the Wildfire Insurance Fund. For further information, see Note 12 and Note 1. 2 As of December 31, 2024, unrecognized tax benefits of $397 million and $327 million for Edison International and SCE, respectively, are presented net against the deferred tax asset for the loss and tax credit carryforwards. As of December 31, 2023, the unrecognized tax benefits netted against deferred tax assets and tax credit carryforwards were $363 million and $299 million for Edison International and SCE, respectively. 3 As of December 31, 2024 and 2023, Edison International has recorded $17 million valuation allowance on deferred tax assets. The $17 million valuation allowance is related to non-California state net operating loss carryforwards which are expected to expire before being utilized. 4 Included in "Deferred income taxes and credits" on the consolidated balance sheets.
Summary of Net Operating Loss and Tax Credit Carryforwards	The amounts of net operating loss and tax credit carryforwards (after-tax) are as follows: Edison International SCE December 31, 2024 (in millions) Loss Credit Loss Credit Expire in 2025 $ 7 $ — $ 7 $ — Expire between 2026 to 2029 28 — 12 — Expire between 2030 to 2044 1,719 699 786 290 No expiration date 1 1,623 24 1,448 26 Total $ 3,377 $ 723 $ 2,253 $ 316 1 Under the Tax Cut and Jobs Act signed into law on December 22, 2017 ("Tax Reform"), net operating losses generated after December 31, 2017 can carryforward indefinitely.
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: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Income from operations before income taxes $ 1,563 $ 1,515 $ 662 $ 1,914 $ 1,781 $ 845 Provision for income tax at federal statutory rate of 21% 328 318 139 402 374 177 (Decrease) increase in income tax from: State tax, net of federal income tax effect (24) 3 (70) — 23 (57) Property-related (279) (205) (219) (279) (205) (219) Corporate-owned life insurance cash surrender value (9) (8) (9) (9) (8) (9) Other 1 — (3) 6 — (1) Total income tax expense (benefit) $ 17 $ 108 $ (162) $ 120 $ 184 $ (109) Effective tax rate 1.1 % 7.1 % (24.5) % 6.3 % 10.3 % (12.9) %
Schedule of Reconciliation of Unrecognized Tax Benefits	The following table provides a reconciliation of unrecognized tax benefits: Edison International SCE (in millions) 2024 2023 2022 2024 2023 2022 Balance at January 1, $ 430 $ 646 $ 613 $ 418 $ 374 $ 340 Tax positions taken during the current year: Increases 66 65 54 66 65 54 Tax positions taken during a prior year: Increases 1 13 — — 4 — Decreases 1 (34) (294) (21) (27) (25) (20) Balance at December 31, $ 463 $ 430 $ 646 $ 457 $ 418 $ 374 1
Schedule of Interest and Penalties Related to Income Tax Liabilities	The total amount of accrued interest and penalties related to income tax liabilities are: Edison International SCE December 31, (in millions) 2024 2023 2024 2023 Accrued interest and penalties $ — $ — $ 36 $ 28 The net after-tax interest and penalties recognized in income tax (benefit) expense are: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Net after-tax interest and penalties tax expense $ — $ — $ — $ 7 $ 4 $ 2

Compensation and Benefit Plans

Compensation and Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2024
Pension and Other Postretirement Benefits
Schedule of Employee Savings Plan Employer Contributions	The 401(k) defined contribution savings plan is designed to supplement employees' retirement income. The employer contributions were as follows: Edison SCE (in millions) Years ended December 31, 2024 $ 136 $ 134 2023 121 119 2022 103 101
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	The following table summarizes total expense and tax benefits associated with stock-based compensation: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Stock-based compensation expense 1 : Stock options $ 13 $ 12 $ 13 $ 7 $ 6 $ 7 Performance shares 21 15 13 10 8 6 Restricted stock units 21 17 14 15 12 9 Other 2 2 2 — — — Total stock-based compensation expense $ 57 $ 46 $ 42 $ 32 $ 26 $ 22 Income tax benefits related to stock-based compensation expense $ 23 $ 7 $ 9 $ 14 $ 5 $ 5 1 Reflected in "Operation and maintenance" on Edison International's and SCE's consolidated statements of income.
Schedule of Black-Sholes Option-Pricing Model Assumptions	The Black-Scholes option-pricing model requires various assumptions noted in the following table: Years ended December 31, 2024 2023 2022 Expected terms (in years) 4.7 4.8 5.0 Risk-free interest rate 3.7% - 4.5% 3.6% - 4.7% 1.6% - 4.1% Expected dividend yield 3.6% - 4.7% 4.2% - 4.7% 4.0% - 5.0% Weighted average expected dividend yield 4.7% 4.2% 4.0% Expected volatility 23.6% - 30.4% 29.0% - 29.6% 27.8% - 28.6% Weighted average volatility 30.3% 29.1% 27.8%
Summary of Stock Options Activity	The following is a summary of the status of Edison International's stock options: Weighted Average Shares Exercise Remaining Aggregate Edison International: Outstanding at December 31, 2023 11,418,243 $ 64.30 Granted 749,968 66.70 Forfeited or expired (107,158) 71.89 Exercised 1 (3,417,478) 64.49 Outstanding at December 31, 2024 8,643,575 64.33 5.01 Exercisable and expected to vest at December 31, 2024 8,438,864 64.40 4.95 $ 130 Exercisable at December 31, 2024 6,651,227 $ 64.79 4.19 $ 100 SCE: Outstanding at December 31, 2023 5,192,275 $ 64.22 Granted 390,760 66.82 Forfeited or expired (98,077) 71.44 Exercised 1 (1,892,980) 64.49 Affiliate transfers, net 14,472 64.22 Outstanding at December 31, 2024 3,606,450 64.18 5.27 Exercisable and expected to vest at December 31,2024 3,508,129 64.25 5.21 $ 55 Exercisable at December 31, 2024 2,609,173 $ 64.66 4.33 $ 40 1 Edison International and SCE recognized tax benefits of $13 million and $7 million, respectively, from stock options exercised in 2024.
Schedule of Unrecognized Compensation Expense	At December 31, 2024, total unrecognized compensation cost related to stock options and the weighted average period the cost is expected to be recognized are as follows: Edison International SCE Unrecognized compensation cost, net of expected forfeitures (in millions) $ 7 $ 4 Weighted average period (in years) 1.3 1.3
Schedule of Supplemental Data on Stock-based Compensation	The following is a summary of supplemental data on stock options: Edison International SCE Years ended December 31, (in millions, except per award amounts) 2024 2023 2022 2024 2023 2022 Weighted average grant date fair value per option granted $ 13.32 $ 12.69 $ 9.92 $ 13.36 $ 12.71 $ 9.92 Fair value of options vested 14 8 8 7 7 5 Value of options exercised 45 14 17 25 11 12
Summary of Nonvested Share Activity	The following is a summary of the status of Edison International's nonvested performance shares: Equity Awards Shares Weighted Average Edison International: Nonvested at December 31, 2023 496,841 $ 71.93 Granted 276,838 72.21 Forfeited (5,872) 72.57 Vested (249,287) 67.90 Nonvested at December 31, 2024 518,520 $ 74.01 SCE: Nonvested at December 31, 2023 249,091 $ 71.99 Granted 144,339 72.37 Forfeited (5,282) 72.23 Vested (123,197) 67.73 Affiliate transfers, net 23 71.99 Nonvested at December 31, 2024 264,974 $ 74.17
Summary of Nonvested Restricted Stock Units Activity	The following is a summary of the status of Edison International's nonvested restricted stock units: Edison International SCE Shares Weighted Average Shares Weighted Average Nonvested at December 31, 2023 892,412 $ 61.19 645,549 $ 61.17 Granted 325,501 66.88 233,112 66.88 Forfeited (22,886) 65.24 (18,908) 65.34 Vested (318,579) 55.71 (238,921) 55.89 Affiliate transfers, net — — (105) 61.17 Nonvested at December 31, 2024 876,448 $ 65.19 620,727 $ 65.22
Pension Plan
Pension and Other Postretirement Benefits
Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan	Information on pension plan assets and benefit obligations is shown below. Edison International SCE Years ended December 31, (in millions) 2024 2023 2024 2023 Change in projected benefit obligation Projected benefit obligation at beginning of year $ 3,647 $ 3,524 $ 3,278 $ 3,159 Service cost 103 101 99 97 Interest cost 175 180 157 162 Actuarial (gain) loss (59) 96 (47) 82 Benefits paid (230) (254) (198) (222) Projected benefit obligation at end of year $ 3,636 $ 3,647 $ 3,289 $ 3,278 Change in plan assets Fair value of plan assets at beginning of year $ 3,609 $ 3,462 $ 3,415 $ 3,275 Actual return on plan assets 192 369 182 349 Employer contributions 37 32 17 13 Benefits paid (230) (254) (198) (222) Fair value of plan assets at end of year 3,608 3,609 3,416 3,415 (Underfunded)/Overfunded status at end of year $ (28) $ (38) $ 127 $ 137 Amounts recognized in the consolidated balance sheets consist of 1 : Long-term assets $ 166 $ 169 $ 137 $ 149 Current liabilities (27) (30) (1) (2) Long-term liabilities (167) (177) (9) (10) $ (28) $ (38) $ 127 $ 137 Amounts recognized in accumulated other comprehensive loss consist of: Net loss $ 8 $ 21 $ 13 $ 8 Amounts recognized as a regulatory liability (146) (159) (133) (159) Accumulated benefit obligation at end of year $ 3,508 $ 3,495 $ 3,172 $ 3,136 Pension plans with plan assets in excess of an accumulated benefit obligation: Projected benefit obligation 3,636 3,647 3,289 3,278 Accumulated benefit obligation 3,508 3,495 3,172 3,136 Fair value of plan assets 3,608 3,609 3,416 3,415 Weighted average assumptions used to determine obligations at end of year: Discount rate 5.56% 5.04% 5.56% 5.04% Rate of compensation increase 4.00% 4.00% 4.00% 4.00% 1
Summary of Expense Components for Plans	Net periodic pension expense components are: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Service cost $ 103 $ 101 $ 120 $ 101 $ 99 $ 118 Non-service cost (benefit) Interest cost 175 180 111 162 166 101 Expected return on plan assets (232) (214) (227) (219) (202) (215) Settlement costs — — 4 — — 4 Amortization of prior service cost — — — — — — Amortization of net loss 4 3 5 2 2 2 Regulatory adjustment (23) (47) 6 (22) (47) 6 Total non-service benefit 1 (76) (78) (101) (77) (81) (102) Total expense $ 27 $ 23 $ 19 $ 24 $ 18 $ 16 1 Included in "Other income" on Edison International's and SCE's consolidated income statements. For further details, see Note 16.
Schedule of Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income	Other changes in pension plan assets and benefit obligations recognized in other comprehensive income: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Net (gain) loss $ (9) $ 6 $ (45) $ (2) $ 6 $ (24) Settlement charges — — (4) — — (4) Amortization of net gain (4) (2) (8) (2) (2) (5) Total (gain) loss recognized in other comprehensive income (13) 4 (57) (4) 4 (33) Total recognized in expense and other comprehensive income $ 14 $ 27 $ (38) $ 20 $ 22 $ (17)
Schedule of Assumptions Used	Edison International and SCE used the following weighted average assumptions to determine pension expense: Years ended December 31, 2024 2023 2022 Discount rate 5.04 % 5.36 % 2.75 % Rate of compensation increase 4.00 % 4.00 % 4.00 % Expected long-term return on plan assets 6.75 % 6.50 % 5.50 % Interest crediting rate for cash balance account 1 : Starting rate 5.54 % 5.86 % 3.12 % Ultimate rate 5.54 % 5.86 % 4.50 % Year ultimate rate is reached 2024 2023 2026 1 Edison International and SCE were using a graduated assumption for interest crediting rate for cash balance account, where current interest rate gradually increased to an ultimate rate at a certain year. Starting 2023, Edison International and SCE changed to use single interest crediting rate assumption to determine the pension expense for cash balance account.
Schedule of Expected Benefit Payments	The following benefit payments, which reflect service rendered and expected future service, are expected to be paid: (in millions) Edison SCE 2025 $ 332 $ 291 2026 344 301 2027 338 304 2028 332 299 2029 324 294 2030 – 2034 1,496 1,370
Schedule of Pension Plan Assets by Hierarchy Levels	The following table sets forth the investments for Edison International and SCE that were accounted for at fair value as of December 31, 2024 and 2023, respectively, by asset class and level within the fair value hierarchy: December 31, 2024 (in millions) Level 1 Level 2 NAV 1 Total U.S. government and agency securities 2 $ 244 $ 353 $ — $ 597 Corporate stocks 3 148 4 — 152 Corporate bonds 4 — 1,084 — 1,084 Common/collective funds 5 — — 652 652 Partnerships/joint ventures 6 — — 680 680 Other investment entities 7 — — 58 58 Registered investment companies 8 238 — 142 380 Interest-bearing cash 14 — — 14 Other — 57 8 65 Total $ 644 $ 1,498 $ 1,540 $ 3,682 Receivables and payables, net (74) Combined net plan assets available for benefits 3,608 SCE's share of net plan assets $ 3,416 December 31, 2023 (in millions) Level 1 Level 2 NAV 1 Total U.S. government and agency securities 2 $ 256 $ 352 $ — $ 608 Corporate stocks 3 176 5 — 181 Corporate bonds 4 — 1,057 — 1,057 Common/collective funds 5 — — 584 584 Partnerships/joint ventures 6 — — 657 657 Other investment entities 7 — — 58 58 Registered investment companies 8 212 — 153 365 Interest-bearing cash 10 — — 10 Other — 46 8 54 Total $ 654 $ 1,460 $ 1,460 $ 3,574 Receivables and payables, net 35 Combined net plan assets available for benefits 3,609 SCE's share of net plan assets $ 3,415 1 These investments are measured at fair value using the net asset value per share practical expedient and have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the net plan assets available for benefits. 2 Level 1 U.S. government and agency securities are U.S. treasury bonds and notes. Level 2 primarily relates to the Federal National Mortgage Association and the Federal Home Loan Mortgage Corporation. 3 Corporate stocks are diversified. At December 31, 2024 and 2023, respectively, performance for actively managed separate accounts is primarily benchmarked against the Russell Indexes (33% and 36%) and Morgan Stanley Capital International (MSCI) index (67% and 64%). 4 Corporate bonds are diversified. At December 31, 2024 and 2023, respectively, this category includes $77 million and $78 million for collateralized mortgage obligations and other asset backed securities. 5 The common/collective assets are invested in equity index funds that seek to track performance of the Standard and Poor's 500 Index (38% and 41% at December 31, 2024 and 2023). In addition, at December 31, 2024 and 2023, respectively, 38% and 40% of the assets in this category are in index funds which seek to track performance in the MSCI All Country World Index ex-US and 19% and 16% of this category are in a non-index U.S. equity fund, which is actively managed. 6 At December 31, 2024 and 2023, respectively, 69% and 74% are invested in private equity funds with investment strategies that include branded consumer products and clean technology companies, 16% and 17% are invested in ABS including distressed mortgages and commercial and residential loans, 9% and zero are invested in fixed income securities, and 5% are invested in a broad range of financial assets in all global markets at both December 31, 2024 and 2023. 7 At December 31, 2024 and 2023, respectively, 70% and 68% are invested in domestic mortgage backed securities and 30% and 32% in high yield debt securities. 8
Other Postretirement Benefits Plan
Pension and Other Postretirement Benefits
Schedule of Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan	Information on PBOP Plan assets and benefit obligations is shown below: Edison International SCE Years ended December 31, (in millions) 2024 2023 2024 2023 Change in benefit obligation Benefit obligation at beginning of year $ 773 $ 1,331 $ 769 $ 1,323 Service cost 14 20 14 20 Interest cost 38 67 38 67 Change in plan provisions 23 — 23 — Actuarial gain (34) (567) (34) (563) Plan participants' contributions 26 28 26 28 Benefits paid (99) (106) (99) (106) Benefit obligation at end of year $ 741 $ 773 $ 737 $ 769 Change in plan assets Fair value of plan assets at beginning of year $ 2,275 $ 2,187 $ 2,275 $ 2,187 Actual return on assets 78 162 78 162 Employer contributions 1 4 1 4 Plan participants' contributions 26 28 26 28 Benefits paid (99) (106) (99) (106) Fair value of plan assets at end of year 2,281 2,275 2,281 2,275 Overfunded status at end of year $ 1,540 $ 1,502 $ 1,544 $ 1,506 Amounts recognized in the consolidated balance sheets consist of: Long-term assets $ 1,544 $ 1,506 $ 1,544 $ 1,506 Current liabilities (1) — — — Long-term liabilities (3) (4) — — $ 1,540 $ 1,502 $ 1,544 $ 1,506 Amounts recognized in accumulated other comprehensive loss consist of: Net gain $ (4) $ (5) $ — $ — Amounts recognized as a regulatory liability (1,544) (1,505) (1,544) (1,505) Weighted average assumptions used to determine obligations at end of year: Discount rate 5.60 % 5.06 % 5.60 % 5.06 % Assumed health care cost trend rates: Rate assumed for following year 6.25 % 6.50 % 6.25 % 6.50 % Ultimate rate 5.00 % 5.00 % 5.00 % 5.00 % Year ultimate rate reached 2029 2029 2029 2029
Summary of Expense Components for Plans	Net periodic PBOP expense components are: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Service cost $ 14 $ 20 $ 34 $ 14 $ 20 $ 34 Non-service cost (benefit) Interest cost 38 67 56 38 67 55 Expected return on plan assets (113) (107) (97) (113) (107) (97) Amortization of prior service cost (1) (1) (2) (1) (1) (2) Amortization of net gain (95) (50) (45) (95) (50) (45) Regulatory adjustment 157 71 55 157 71 55 Total non-service benefit 1 (14) (20) (33) (14) (20) (34) Total expense $ — $ — $ 1 $ — $ — $ — 1 Included in "Other income" on Edison International's and SCE's consolidated income statements. For further details, see Note 16.
Schedule of Assumptions Used	Edison International and SCE used the following weighted average assumptions to determine PBOP expense: Years ended December 31, 2024 2023 2022 Discount rate 5.06% 5.43% 2.95% Expected long-term return on plan assets 4.88% 5.00% 3.50% Assumed health care cost trend rates: Current year 6.50% 6.75% 6.25% Ultimate rate 5.00% 5.00% 5.00% Year ultimate rate reached 2029 2029 2029
Schedule of Pension Plan Assets by Hierarchy Levels	The following benefit payments (net of plan participants' contributions) are expected to be paid: (in millions) Edison SCE 2025 $ 49 $ 48 2026 50 50 2027 54 54 2028 55 54 2029 55 55 2030 – 2034 282 281
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	The following table sets forth the VEBA Trust assets for Edison International and SCE that were accounted for at fair value as of December 31, 2024 and 2023, respectively, by asset class and level within the fair value hierarchy: December 31, 2024 (in millions) Level 1 Level 2 NAV 1 Total U.S. government and agency securities 2 $ 489 $ 51 $ — $ 540 Corporate stocks 3 81 2 — 83 Corporate notes and bonds 4 — 1,126 — 1,126 Common/collective funds 5 — — 235 235 Partnerships 6 — — 119 119 Registered investment companies 7 52 — — 52 Interest bearing cash — 45 — 45 Other 8 — 95 — 95 Total $ 622 $ 1,319 $ 354 $ 2,295 Receivables and payables, net (14) Net plan assets available for benefits $ 2,281 December 31, 2023 (in millions) Level 1 Level 2 NAV 1 Total U.S. government and agency securities 2 $ 569 $ 84 $ — $ 653 Corporate stocks 3 85 2 — 87 Corporate notes and bonds 4 — 1,064 — 1,064 Common/collective funds 5 — — 222 222 Partnerships 6 — — 124 124 Registered investment companies 7 47 — — 47 Interest bearing cash — 29 — 29 Other 8 2 70 — 72 Total $ 703 $ 1,249 $ 346 $ 2,298 Receivables and payables, net (23) Net plan assets available for benefits $ 2,275 1 These investments are measured at fair value using the net asset value per share practical expedient and have not been classified in the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the net plan assets available for benefits. 2 Level 1 U.S. government and agency securities are U.S. treasury bonds and notes. Level 2 primarily relates to the Federal Home Loan Mortgage Corporation and the Federal National Mortgage Association. 3 Corporate stock performance for actively managed separate accounts is primarily benchmarked against the Russell Indexes (78% and 74% at December 31, 2024 and 2023, respectively) and the MSCI All Country World Index (22% and 26% at December 31, 2024 and 2023, respectively). 4 Corporate notes and bonds are diversified and include approximately $343 million and $237 million for commercial collateralized mortgage obligations and other asset backed securities at December 31, 2024 and 2023, respectively. 5 At December 31, 2024 and 2023, respectively, 47% and 45% of the common/collective assets are invested in index funds which seek to track performance in the MSCI All Country World Investable Market Index, 41% and 40% are invested in a non-index U.S. equity fund which is actively managed. The remaining assets in this category are primarily invested in emerging market fund and fixed income funds. 6 At December 31, 2024 and 2023, respectively, 71% and 65% of the partnerships are invested in private equity and venture capital funds. Investment strategies for these funds include branded consumer products, clean and information technology and healthcare. Of the remaining partnerships category, 22% and 28% are invested in asset backed securities including distressed mortgages, distressed companies and commercial and residential loans and debt and equity of banks; 7% are invested in a broad range of financial assets in all global markets at both December 31, 2024 and 2023. 7 At December 31, 2024 and 2023, respectively, registered investment companies were primarily invested in a money market fund (73% and 70%) and exchange rate traded funds which seek to track performance of MSCI Emerging Market Index, Russell 2000 Index and international small cap equities (27% and 30%). 8 Other includes $52 million and $58 million of municipal securities at December 31, 2024 and 2023, respectively.

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2024
Regulated Entity, Other Assets, Noncurrent [Abstract]
Summary of Amortized Cost and Fair Value of the Trust Investments	The following table sets forth amortized cost and fair value of the trust investments (see Note 4 for a discussion on fair value of the trust investments): Amortized Costs Fair Values (in millions) Longest Maturity Dates December 31, December 31, December 31, December 31, Municipal bonds 2067 $ 729 $ 636 $ 860 $ 757 Government and agency securities 2074 1,201 1,072 1,341 1,186 Corporate bonds 2072 346 361 392 401 Short-term investments and receivables/payables 1 One-year 152 164 62 171 Total debt securities and other 2,428 2,233 2,655 2,515 Equity securities 1,631 1,658 Total 2 $ 4,286 $ 4,173 1 Short-term investments include $18 million and $38 million of repurchase agreements payable by financial institutions which earn interest, were both fully secured by U.S. Treasury securities and mature by January 2, 2025 and January 2, 2024 as of December 31, 2024 and 2023, respectively. 2
Summary of Gains and Losses	The following table summarizes the gains and losses for the trust investments: Years ended December 31, (in millions) 2024 2023 2022 Gross realized gains $ 326 $ 323 $ 150 Gross realized losses (24) (73) (127) Net unrealized (losses) gains for equity securities (19) 103 (369)

Regulatory Assets and Liabili_2

Regulatory Assets and Liabilities (Tables)	12 Months Ended
	Dec. 31, 2024
Regulatory Assets and Liabilities Disclosure [Abstract]
Schedule of Regulatory Assets	SCE's regulatory assets included on the consolidated balance sheets are: December 31, (in millions) 2024 2023 Current: Regulatory balancing and memorandum accounts $ 2,723 $ 2,502 Other 25 22 Total current 2,748 2,524 Long-term: Deferred income taxes 5,982 5,533 Unamortized investments, net of accumulated amortization 115 110 Unamortized losses on reacquired debt 88 99 Regulatory balancing and memorandum accounts 867 1,257 Environmental remediation 222 226 Recovery assets 1,512 1,558 Other 100 114 Total long-term 8,886 8,897 Total regulatory assets $ 11,634 $ 11,421
Schedule of Regulatory Liabilities	SCE's regulatory liabilities included on the consolidated balance sheets are: December 31, (in millions) 2024 2023 Current: Regulatory balancing and memorandum accounts $ 1,144 $ 704 Energy derivatives 165 16 Other 38 43 Total current 1,347 763 Long-term: Costs of removal 2,520 2,635 Deferred income taxes 2,163 2,211 Recoveries in excess of ARO liabilities 1,748 1,498 Regulatory balancing and memorandum accounts 2,023 1,395 Pension and other postretirement benefits 1,690 1,664 Other 15 17 Total long-term 10,159 9,420 Total regulatory liabilities $ 11,506 $ 10,183
Schedule of Regulatory Balancing Accounts	The following table summarizes the significant components of regulatory balancing and memorandum accounts included in the above tables of regulatory assets and liabilities: December 31, (in millions) 2024 2023 Asset (liability) Energy procurement related costs $ (97) $ 397 Public purpose and energy efficiency (1,708) (1,736) GRC related balancing accounts 1 976 1,361 FERC related balancing accounts 125 (211) Wildfire risk mitigation and insurance 2 741 1,169 Wildfire and drought restoration 3 238 417 Tax accounting memorandum account (40) 108 Other 188 155 Assets, net of liabilities $ 423 $ 1,660 1 The GRC related balancing accounts primarily consist of the base revenue requirement balancing account ("BRRBA"), the vegetation management balancing account ("VMBA"), the Wildfire Risk Mitigation balancing account ("WRMBA") and the risk management balancing account ("RMBA"). The 2021 GRC decision approved the establishment of the VMBA to track vegetation management expenses up to 115% of amounts authorized, the WRMBA to track the costs of SCE's Wildfire Covered Conductor Program up to 110% of amounts authorized and the RMBA to track the authorized costs of wildfire insurance. If spending is less than authorized, SCE will refund those amounts to customers. If spending is within the specified threshold, if any, for each balancing account, SCE will recover those costs from customers. Amounts above the specified threshold, or above amounts authorized if a higher threshold was not established, for each balancing account may be eligible for deferral to wildfire risk mitigation and insurance accounts. 2 The wildfire risk mitigation and insurance regulatory assets represent wildfire-related costs that are probable of future recovery from customers, subject to a reasonableness review. The Fire Hazard Prevention Memorandum Account was used to track costs related to fire safety and to implement fire prevention corrective action measures in extreme and very high fire threat areas. The Wildfire Expense Memorandum Account ("WEMA") is used to track incremental wildfire insurance costs and uninsured wildfire-related financing, legal and claims costs related to the Other Wildfire Events that SCE believes are probable of recovery. See Note 12 for further details. The Wildfire Mitigation Plan Memorandum Account is used to track costs incurred to implement SCE's wildfire mitigation plan that are not currently reflected in SCE's revenue requirements. The Fire Risk Mitigation Memorandum Account is used to track costs related to the reduction of fire risk that are incremental to costs approved for recovery in SCE's GRCs that are not tracked in any other wildfire-related memorandum account. The balance also includes vegetation management spending in excess of the 115% threshold for the VMBA described above. 3 The wildfire and drought restoration regulatory assets represent restoration costs that are recorded in a Catastrophic Event Memorandum Account.

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract]
Schedule of Undiscounted Expected Payments for PPA	SCE entered into various agreements to purchase power, electric capacity and other energy products. At December 31, 2024, the undiscounted future expected minimum payments for the SCE PPAs (primarily related to renewable energy contracts), which were approved by the CPUC and met other critical contract provisions (including completion of major milestones for construction), were as follows: (in millions) Total 2025 $ 2,986 2026 3,139 2027 2,704 2028 2,423 2029 2,421 Thereafter 16,493 Total future commitments 1 $ 30,166 1 Certain power purchase agreements are treated as operating leases. For further discussion, see Note 13. Includes long-term lease contracts commencing in 2024 with total future minimum lease payments of $57 million.
Schedule of Certain Future Other Commitments	The following summarizes the estimated minimum future commitments for SCE's other commitments: (in millions) 2025 2026 2027 2028 2029 Thereafter Total Other contractual obligations $ 62 $ 59 $ 59 $ 59 $ 48 $ 142 $ 429
Schedule of Contingency Accruals and Changes	The following table presents settlements paid. (in millions) Inception to December 31, 2024 2024 2023 2022 2017/2018 Wildfire/Mudslide Events $ 9,454 $ 779 $ 1,034 $ 1,911 Other Wildfire Events 564 361 190 13 Total $ 10,018 $ 1,140 $ 1,224 $ 1,924 The following table presents changes in estimated losses since December 31, 2023: (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Balance at December 31, 2023 $ 715 $ 683 $ 1,398 Increase in accrued estimated losses 490 253 743 Amounts paid (779) (361) (1,140) Balance at December 31, 2024 $ 426 $ 575 $ 1,001 Edison International's and SCE's consolidated balance sheets included fixed payments to be made under executed settlement agreements and accrued estimated losses presented in the tables below: (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Current portion of Wildfire-related claims liabilities 1 $ 48 $ 12 $ 60 Long term wildfire-related claims liabilities 2 378 563 941 Total Balance at December 31, 2024 $ 426 $ 575 $ 1,001 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Current portion of Wildfire-related claims liabilities 1 $ 30 $ — $ 30 Long term wildfire-related claims liabilities 2 685 683 1,368 Total Balance at December 31, 2023 $ 715 $ 683 $ 1,398 1. At December 31, 2024, current liabilities related to 2017/2018 Wildfire/Mudslide Events consisted of $29 million of settlements executed and $19 million of short-term payables under the SED Agreement. At December 31, 2023, current liabilities related to 2017/2018 Wildfire/Mudslide Events consisted of $16 million of settlements executed and $14 million of short-term payables under the SED Agreement. 2. At December 31, 2024, long-term wildfire-related claims related to 2017/2018 Wildfire/Mudslide Events consisted of $38 million of long-term payables under the SED Agreement and $340 million of estimate of expected losses for remaining alleged and potential claims. At December 31, 2023, long-term wildfire-related claims related to 2017/2018 Wildfire/Mudslide Events consisted of $48 million of long-term payables under the SED Agreement and $637 million of estimate of expected losses for remaining alleged and potential claims. For the years ended December 31, 2024, 2023 and 2022, SCE's consolidated statements of income included charges for the estimated losses, net of expected recoveries, as follows: Year ended December 31, 2024 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Charge for wildfire-related claims $ 490 $ 253 $ 743 Expected insurance recoveries 1 — (96) (96) Expected recoveries through electric rates (27) (9) (36) Total pre-tax charge 463 148 611 Income tax benefit (130) (42) (172) Total after-tax charge $ 333 $ 106 $ 439 Year ended December 31, 2023 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Charge for wildfire-related claims $ 630 $ 184 $ 814 Expected insurance recoveries 1 — (149) (149) Expected recoveries through electric rates (37) (2) (39) Total pre-tax charge 593 33 626 Income tax benefit (165) (9) (174) Total after-tax charge $ 428 $ 24 $ 452 Year ended December 31, 2022 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Charge for wildfire-related claims $ 1,296 $ 572 $ 1,868 Expected insurance recoveries 1 — (399) (399) Expected recoveries through electric rates (76) (162) (238) Total pre-tax charge 1,220 11 1,231 Income tax benefit (341) (3) (344) Total after-tax charge $ 879 $ 8 $ 887 1. In 2024, 2023 and 2022, Edison Insurance Services, Inc. ("EIS"), a wholly-owned subsidiary of Edison International, incurred $4 million, $3 million and $9 million insurance expenses, respectively. These amounts were included in the insurance recoveries of SCE but were excluded from those of Edison International. The following table sets forth total expected recoveries SCE has recorded since inception through December 31, 2024: (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Insurance recoveries $ 2,000 $ 718 $ 2,718 FERC recoveries 440 25 465 CPUC- RMBA recoveries — 12 12 CPUC-WEMA deferral — 140 140 Total $ 2,440 $ 895 $ 3,335 The following tables summarize expected recoveries from insurance and through electric rates as of December 31, 2024 and 2023: December 31, 2024 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Long-term insurance receivables $ — $ 434 $ 434 FERC related balancing accounts 64 9 73 CPUC-WEMA — 140 140 Total $ 64 $ 583 $ 647 December 31, 2023 (in millions) 2017/2018 Wildfire/Mudslide Events Other Wildfire Events Total Long-term insurance receivables $ — $ 512 $ 512 FERC related balancing accounts 37 14 51 CPUC-WEMA — 140 140 Total $ 37 $ 666 $ 703

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2024
Leases [Abstract]
Schedule of Finance Lease Payments	The following table summarizes SCE's future lease payments for operating leases as of December 31, 2024: (in millions) PPA Operating Leases Other Operating Leases 1 2025 $ 106 $ 64 2026 89 58 2027 84 54 2028 84 48 2029 85 41 Thereafter 698 104 Total lease payments 1,146 369 Amount representing interest 265 76 Lease liabilities $ 881 $ 293 1 Excludes escalation clauses based on consumer price or other indices and residual value guarantees that are not considered probable at the commencement date of the lease.
Schedule of Lease Expense Components	Years ended December 31, (in millions) 2024 2023 2022 PPA leases: Operating lease cost $ 115 $ 503 $ 580 Variable lease cost 1 1,700 2,277 2,661 Total PPA lease cost 1,815 2,780 3,241 Other operating leases cost 64 56 52 Total lease cost $ 1,879 $ 2,836 $ 3,293 1 Includes lease costs from legacy renewable energy contracts where payments are based on contingent external factors such as wind, hydro and solar power generation. Other information related to leases was as follows: Years ended December 31, (in millions, except lease term and discount rate) 2024 2023 2022 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from: PPA operating leases $ 115 $ 503 $ 580 Other operating leases 62 55 50 ROU assets obtained in exchange for lease obligations: PPA operating leases $ 11 $ 226 $ 20 Other operating leases 79 69 76 Weighted average remaining lease term (in years): PPA operating leases 12.50 13.37 9.42 Other operating leases 8.86 9.56 10.38 Weighted average discount rate: PPA operating leases 4.30% 4.30% 2.95% Other operating leases 4.50% 4.22% 3.78%
Schedule of Undiscounted Cash Flow Expected from Lease Payments	(in millions) 2025 $ 12 2026 8 2027 8 2028 8 2029 7 Thereafter 118 Total $ 161

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2024
Stockholders' Equity Note [Abstract]
Schedule of Preferred Stock and Preference Stock	The following table summarizes preference stocks (dividends declared per share are for 2024): Issue Date Shares Redemption Dividends December 31, (in millions, except shares and per share amounts) 2024 2023 No par value (cumulative): 3-month SOFR+4.199% Series E 2012 — $ 1,000 $ 24.418 $ — $ 350 5.10% Series G 2013 88,004 2,500 127.500 220 220 3-month SOFR+2.99% Series H 2014 — 2,500 187.776 — 275 5.375% Series J 2015 130,004 2,500 134.375 325 325 5.45% Series K 2016 120,004 2,500 136.250 300 300 5.00% Series L 2017 190,004 2,500 125.000 475 475 7.50% Series M 2023 220,004 2,500 199.479 550 550 6.95% Series N 2024 140,004 2,500 102.319 350 — SCE's preference stock 2,220 2,495 Less: issuance costs (45) (52) Edison International's preference stock of utility $ 2,175 $ 2,443

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2024
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Loss	The changes in accumulated other comprehensive loss, net of tax, consist of: Edison International SCE Years ended December 31, (in millions) 2024 2023 2024 2023 Beginning balance $ (9) $ (11) $ (12) $ (8) Pension and PBOP: Other comprehensive (loss) income before reclassifications 7 (2) 1 (5) Reclassified from accumulated other comprehensive loss 1 2 1 2 1 Foreign currency translation adjustments — 3 — — Change 9 2 3 (4) Ending balance $ — $ (9) $ (9) $ (12) 1 These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 9 for additional information .

Other Income, Net (Tables)

Other Income, Net (Tables)	12 Months Ended
	Dec. 31, 2024
Other Income and Expenses [Abstract]
Schedule of Other Income, Net	Other income net of expenses is as follows: Years ended December 31, (in millions) 2024 2023 2022 SCE other income (expense): Equity AFUDC $ 187 $ 157 $ 137 Increase in cash surrender value of life insurance policies and life insurance benefits 42 37 42 Interest income 250 261 80 Net periodic benefit income – non-service components 91 100 136 Civic, political and related activities and donations (63) (42) (42) Other (14) (16) (16) Total SCE other income, net 493 497 337 Other income (expense) of Edison International Parent and Other: Net (losses) gains on equity securities — (3) 1 Interest income and other 9 6 10 Total Edison International other income, net $ 502 $ 500 $ 348

Supplemental Cash Flows Infor_2

Supplemental Cash Flows Information (Tables)	12 Months Ended
	Dec. 31, 2024
Supplemental Cash Flow Elements [Abstract]
Schedule of Supplemental Cash Flows Information	Supplemental cash flows information is: Edison International SCE Years ended December 31, (in millions) 2024 2023 2022 2024 2023 2022 Cash payments (receipts): Interest, net of amounts capitalized $ 1,588 $ 1,401 $ 1,001 $ 1,306 $ 1,155 $ 864 Income taxes, net 51 — (49) 78 — (49) Non-cash financing and investing activities: Dividends declared but not paid: Common stock 318 299 282 430 360 350 Preference stock of SCE — 9 8 — 9 8 Details of debt exchange: Pollution-control bonds redeemed (2.625%) — (135) — — (135) — Pollution-control bonds remarketed (4.50%) — 135 — — 135 —

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Narrative (Details) $ / shares in Units, $ in Millions		1 Months Ended		3 Months Ended	12 Months Ended
	Feb. 27, 2025 USD ($) $ / shares	Dec. 31, 2024 USD ($) $ / shares shares	Jul. 31, 2021 shares	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($) mi² segment $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 01, 2024 $ / shares
Organization
Wildfire insurance fund contributions, noncurrent		$ 1,878			$ 1,878	$ 1,951
Wildfire insurance fund contributions, current		138			138	204
Wildfire insurance fund contributions					95	95	$ 95
Asset retirement obligations		$ 2,580			$ 2,580	2,666
Performance incentive plan award (in shares) | shares		71,000,000			71,000,000
Dividend declared					$ 1,221	$ 1,147	$ 1,083
Dividend increase (decrease) (as a percent)		6.10%			6.10%
Dividends declared per common share (in dollars per share) | $ / shares		$ 3.12			$ 3.1675	$ 2.9925	$ 2.8375
Dividends payable (in dollars per share) | $ / shares										$ 3.31
Antidilutive awards excluded from earnings per share (in shares) | shares					1,533,982	3,771,766	5,839,549
Number of reportable segment | segment					1
Forecast
Organization
Asset impairment charges				$ 10
Subsequent Event
Organization
Dividends declared per common share (in dollars per share) | $ / shares	$ 0.8275
Minimum
Organization
Dividend target payout ratio		45%			45%
Maximum
Organization
Dividend target payout ratio		55%			55%
Employee Stock
Organization
Performance incentive plan award (in shares) | shares			3,000,000
Purchase price based on market (as a percent)			97%
Maximum payroll deduction | shares			25,000
Employee Stock | Minimum
Organization
Payroll deductions (as a percent)			1%
Employee Stock | Maximum
Organization
Payroll deductions (as a percent)			10%
Measurement Input
Organization
Historical term used in estimate					10 years	9 years	8 years
Wildfire Insurance Fund
Organization
Wildfire insurance fund contributions, noncurrent		$ 1,900			$ 1,900	$ 2,000
Wildfire insurance fund contributions, current		138			138	204
Wildfire insurance fund contributions								$ 2,400
Wildfire insurance fund liability, noncurrent		363			$ 363	$ 450
Insurance fund contribution amortization period					20 years	15 years	15 years
SCE
Organization
Supply of electricity area covered (in square miles) | mi²					50,000
GHG allowances		66			$ 66	$ 128
GHG emission obligations		22			22	117
Regulatory liabilities		11,506			11,506	10,183
Depreciation					$ 2,800	$ 2,500	$ 2,500
Depreciation expense based on cost (as a percent)					4.30%	4.10%	4.20%
Wildfire insurance fund contributions, noncurrent		1,878			$ 1,878	$ 1,951
Wildfire insurance fund contributions, current		138			138	204
Wildfire insurance fund contributions					95	95	$ 95
Asset retirement obligations		2,580			2,580	2,666	2,754
Franchise fees billed to customers					$ 183	168	172
Weighted-average equity component authorization (as a percent)					52%				45.20%
Wildfire related charge incurred after tax									$ 1,800
Weighted-average common equity component authorization period									37 months
Weighted-average common equity component of total capitalization percent (below)									48.70%
Spot rate equity ratio									47.70%
Waiver threshold percent									47.70%
Dividend declared					$ 1,510	$ 1,410	$ 1,325
Dividends declared per common share (in dollars per share) | $ / shares					$ 3.4722	$ 3.2422	$ 3.0468
Severance costs					$ 53
Other restructuring costs					3
SCE | Subsequent Event
Organization
Dividend declared	$ 430
SCE | Minimum
Organization
Weighted-average equity component authorization (as a percent)									48%
SCE | Palo Verde and San Onofre Units
Organization
Asset retirement obligations		2,100			2,100
Estimated cost to decommission nuclear facilities		7,600			$ 7,600
Decommissioning cost escalated rates, low end (percent)					2.10%
Decommissioning cost escalated rates, high end (percent)					7.50%
Estimated annual net of tax earnings, low end (percent)					3.60%
Estimated annual net of tax earnings, high end (percent)					5.70%
SCE | LCFS net sales proceeds
Organization
Regulatory liabilities		$ 243			$ 243	$ 248

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Cash and Restricted Cash (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restricted Cash and Cash Equivalents
Money market funds	$ 101	$ 199
Cash and cash equivalents	193	345
Short-term restricted cash	$ 40	$ 35
Restricted Cash, Current, Statement of Financial Position Flag	Other current assets	Other current assets
Long-term restricted cash	$ 451	$ 152
Restricted Cash, Noncurrent, Statement of Financial Position Flag	Other long-term assets	Other long-term assets
Total cash, cash equivalents and restricted cash	$ 684	$ 532	$ 917	$ 394
SCE
Restricted Cash and Cash Equivalents
Money market funds	0	78
Cash and cash equivalents	78	214
Short-term restricted cash	$ 36	$ 33
Restricted Cash, Current, Statement of Financial Position Flag	Other current assets	Other current assets
Long-term restricted cash	$ 451	$ 151
Restricted Cash, Noncurrent, Statement of Financial Position Flag	Other long-term assets	Other long-term assets
Total cash, cash equivalents and restricted cash	$ 565	$ 398	$ 766	$ 280

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Changes in Allowance for Uncollectible Accounts (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Credit Loss Roll Forward
Allowance for long-term credit losses	$ 43	$ 4
SCE
Credit Loss Roll Forward
Beginning balance	364	354	$ 309
Current period provision for uncollectible accounts	290	115	122
Write-offs, net of recoveries	(264)	(105)	(77)
Ending balance	390	364	354
Recovery from customers, incremental costs	222	78	40
Allowance for long-term credit losses	43	4
SCE | Customers
Credit Loss Roll Forward
Beginning balance	347	334	293
Current period provision for uncollectible accounts	278	109	111
Write-offs, net of recoveries	(253)	(96)	(70)
Ending balance	372	347	334
SCE | All others
Credit Loss Roll Forward
Beginning balance	17	20	16
Current period provision for uncollectible accounts	12	6	11
Write-offs, net of recoveries	(11)	(9)	(7)
Ending balance	$ 18	$ 17	$ 20

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Property, Plant and Equipment (Details) - SCE	Dec. 31, 2024
Generation plant | Minimum
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	10 years
Generation plant | Maximum
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	54 years
Generation plant | Weighted Average
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	39 years
Distribution plant | Minimum
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	20 years
Distribution plant | Maximum
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	67 years
Distribution plant | Weighted Average
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	50 years
Transmission plant | Minimum
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	30 years
Transmission plant | Maximum
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	65 years
Transmission plant | Weighted Average
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	53 years
General plant and other | Minimum
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	5 years
General plant and other | Maximum
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	60 years
General plant and other | Weighted Average
Property, Plant and Equipment [Line Items]
Estimated and Weighted Average Useful Lives	19 years

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Summarizes SCE's AFUDC Related to Debt and Equity (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Receivables
Equity AFUDC	$ 187	$ 157	$ 137
Other income.
Receivables
Equity AFUDC	187	157	137
Interest expense
Receivables
Debt AFUDC	$ 82	$ 74	$ 53

Summary of Significant Accoun_9

Summary of Significant Accounting Policies - Summarizes the Changes in SCE's ARO Liability (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Asset Retirement Obligation, Roll Forward
Beginning balance	$ 2,666
Ending balance	2,580	$ 2,666
SCE
Asset Retirement Obligation, Roll Forward
Beginning balance	2,666	2,754
Accretion	137	144
Revisions	(2)	(3)
Liabilities settled	(221)	(229)
Ending balance	$ 2,580	$ 2,666

Summary of Significant Accou_10

Summary of Significant Accounting Policies - Amortization of Deferred Financing Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Regulatory Assets
Amortization of deferred financing costs charged to interest expense	$ 41	$ 39	$ 37
SCE
Regulatory Assets
Amortization of deferred financing costs charged to interest expense	$ 34	$ 32	$ 31

Summary of Significant Accou_11

Summary of Significant Accounting Policies - Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Basic earnings per share:
Net income	$ 1,284	$ 1,197	$ 612
Weighted average common shares outstanding (in shares)	386	383	381
Basic earnings per share (in dollars per share)	$ 3.33	$ 3.12	$ 1.61
Diluted earnings per share:
Net income	$ 1,284	$ 1,197	$ 612
Income impact of assumed conversions	1	1	1
Net income available to common shareholders and assumed conversions	$ 1,285	$ 1,198	$ 613
Weighted average common shares outstanding (in shares)	386	383	381
Incremental shares from assumed conversions (in shares)	2	2	2
Adjusted weighted average shares - diluted (in shares)	388	385	383
Diluted earnings per share (in dollars per share)	$ 3.31	$ 3.11	$ 1.60

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Utility Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Property, Plant and Equipment [Line Items]
Accumulated depreciation	$ (14,207)	$ (12,910)
Total utility property, plant and equipment	59,047	55,877
SCE
Property, Plant and Equipment [Line Items]
Distribution	37,093	34,573
Transmission	19,189	18,526
Generation	4,217	3,593
General plant and other	7,046	6,383
Accumulated depreciation	(14,207)	(12,910)
Total utility property, plant and equipment, Gross	53,338	50,165
Construction work in progress	5,585	5,590
Nuclear fuel, at amortized cost	124	122
Total utility property, plant and equipment	$ 59,047	$ 55,877

Property, Plant and Equipment_2

Property, Plant and Equipment - Narrative (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Capitalized software costs	$ 2,500	$ 2,100
Capitalized software, accumulated amortization	1,100	900
Capitalized software, amortization expense	416	$ 358	$ 344
Capitalized software, estimated amortization year 1	428
Capitalized software, estimated amortization year 2	371
Capitalized software, estimated amortization year 3	288
Capitalized software, estimated amortization year 4	186
Capitalized software, estimated amortization year 5	$ 72
Software and Software Development Costs | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives	5 years
Software and Software Development Costs | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives	7 years

Property, Plant and Equipment_3

Property, Plant and Equipment (Jointly Owned Utility Projects) (Details) - SCE - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Jointly Owned Utility Plant Interests [Line Items]
Plant in Service	$ 3,053
Construction Work in Progress	110
Accumulated Depreciation	(1,886)
Nuclear Fuel (at amortized cost)	124	$ 122
Total	1,401
Eldorado
Jointly Owned Utility Plant Interests [Line Items]
Plant in Service	448
Construction Work in Progress	40
Accumulated Depreciation	(71)
Nuclear Fuel (at amortized cost)	0
Total	$ 417
Ownership Interest	71%
Pacific Intertie
Jointly Owned Utility Plant Interests [Line Items]
Plant in Service	$ 356
Construction Work in Progress	8
Accumulated Depreciation	(121)
Nuclear Fuel (at amortized cost)	0
Total	$ 243
Ownership Interest	50%
Palo Verde (nuclear)
Jointly Owned Utility Plant Interests [Line Items]
Plant in Service	$ 2,249
Construction Work in Progress	62
Accumulated Depreciation	(1,694)
Nuclear Fuel (at amortized cost)	124
Total	$ 741
Ownership Interest	16%

Variable Interest Entities - Na

Variable Interest Entities - Narrative (Details) - SCE $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) MW	Dec. 31, 2023 USD ($) MW	Sep. 30, 2024 MW
SCE Recovery Funding LLC
Variable Interest Entity
Debt carrying amount	$ 1,600
SCE Power Purchases Contracts
Variable Interest Entity
Power generating capacity of projects owned controlled | MW	5,200	3,343	200
Power Purchase Agreement
Variable Interest Entity
Amounts paid to VIEs	$ 778	$ 528

Variable Interest Entities - Su

Variable Interest Entities - Summarizes of Recovery Funding (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Variable Interest Entity
Other current assets	$ 418	$ 341
Regulatory assets: non-current	8,886	8,897
Regulatory liabilities: current	1,347	763
Current portion of long-term debt	2,049	2,697
Other current liabilities	1,439	1,538
Long-term debt	33,534	30,316
SCE Recovery Funding LLC
Variable Interest Entity
Other current assets	49	53
Regulatory assets: non-current	1,512	1,558
Regulatory liabilities: current	30	34
Current portion of long-term debt	49	47
Other current liabilities	6	6
Long-term debt	$ 1,468	$ 1,515

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Hierarchy (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets at fair value
Nuclear decommissioning trusts	$ 4,286	$ 4,173
SCE
Assets at fair value
Nuclear decommissioning trusts	$ 4,286	$ 4,173
Liabilities at fair value
Percentage of equity investments located in the United States (as a percent)	75%	75%
Collateralized mortgage obligations and other asset backed securities	$ 94	$ 106
Receivable (payables), net, related to investments	(105)	(102)
SCE | Fair Value, Recurring
Assets at fair value
Netting and Collateral	(1)	(3)
Derivative contracts, Total	212	91
Other	22	100
Nuclear decommissioning trusts	4,391	4,275
Total assets	4,625	4,466
Liabilities at fair value
Netting and Collateral	(47)	(77)
Derivative contracts, Total	0	0
Total liabilities	0	0
Net assets	4,625	4,466
Netting and Collateral, Total	46	74
SCE | Fair Value, Recurring | Level 1
Assets at fair value
Derivative contracts	0	0
Other	0	78
Nuclear decommissioning trusts	2,734	2,750
Total assets	2,734	2,828
Liabilities at fair value
Derivative contracts	0	0
Total liabilities	0	0
Net assets	2,734	2,828
SCE | Fair Value, Recurring | Level 2
Assets at fair value
Derivative contracts	1	3
Other	22	22
Nuclear decommissioning trusts	1,657	1,525
Total assets	1,680	1,550
Liabilities at fair value
Derivative contracts	47	77
Total liabilities	47	77
Net assets	1,633	1,473
SCE | Fair Value, Recurring | Level 3
Assets at fair value
Derivative contracts	212	91
Other	0	0
Nuclear decommissioning trusts	0	0
Total assets	212	91
Liabilities at fair value
Derivative contracts	0	0
Total liabilities	0	0
Net assets	212	91
SCE | Fair Value, Recurring | Equity securities
Assets at fair value
Nuclear decommissioning trusts	1,631	1,658
SCE | Fair Value, Recurring | Equity securities | Level 1
Assets at fair value
Nuclear decommissioning trusts	1,631	1,658
SCE | Fair Value, Recurring | Equity securities | Level 2
Assets at fair value
Nuclear decommissioning trusts	0	0
SCE | Fair Value, Recurring | Equity securities | Level 3
Assets at fair value
Nuclear decommissioning trusts	0	0
SCE | Fair Value, Recurring | Fixed Income
Assets at fair value
Nuclear decommissioning trusts	2,593	2,344
SCE | Fair Value, Recurring | Fixed Income | Level 1
Assets at fair value
Nuclear decommissioning trusts	975	923
SCE | Fair Value, Recurring | Fixed Income | Level 2
Assets at fair value
Nuclear decommissioning trusts	1,618	1,421
SCE | Fair Value, Recurring | Fixed Income | Level 3
Assets at fair value
Nuclear decommissioning trusts	0	0
SCE | Fair Value, Recurring | Short-term investments, primarily cash equivalents
Assets at fair value
Nuclear decommissioning trusts	167	273
SCE | Fair Value, Recurring | Short-term investments, primarily cash equivalents | Level 1
Assets at fair value
Nuclear decommissioning trusts	128	169
SCE | Fair Value, Recurring | Short-term investments, primarily cash equivalents | Level 2
Assets at fair value
Nuclear decommissioning trusts	39	104
SCE | Fair Value, Recurring | Short-term investments, primarily cash equivalents | Level 3
Assets at fair value
Nuclear decommissioning trusts	$ 0	$ 0

Fair Value Measurements - Summa

Fair Value Measurements - Summary of Changes in SCE's Fair Value of Level 3 Net Derivative Assets and Liabilities (Details) - SCE - Level 3 - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Fair Value Disclosures Level 3
Fair value of net assets at beginning of period	$ 91	$ 63
Sales	(1)	(1)
Settlements	14	(40)
Total realized/unrealized gains, net of losses	108	69
Fair value of net assets at end of period	$ 212	$ 91

Fair Value Measurements - Signi

Fair Value Measurements - Significant Unobservable Inputs (Details) - SCE - Level 3 - Congestion revenue rights - Valuation, Market Approach $ in Millions	Dec. 31, 2024 USD ($) $ / MWh	Dec. 31, 2023 USD ($) $ / MWh
Quantitative Information About Level 3 Measurements [Line Items]
Assets | $	$ 212	$ 91
Liabilities | $	$ 0	$ 0
Minimum
Quantitative Information About Level 3 Measurements [Line Items]
Unobservable inputs	(4.64)	(6.44)
Maximum
Quantitative Information About Level 3 Measurements [Line Items]
Unobservable inputs	50,048.16	16,574.36
Weighted Average
Quantitative Information About Level 3 Measurements [Line Items]
Unobservable inputs	27.20	2.74

Fair Value Measurements - Narra

Fair Value Measurements - Narrative (Details) - Edison International Parent and Other: - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Level 1
Fair Value
Money market funds fair value	$ 101	$ 121
Level 3
Fair Value
Short-term investments fair value	$ 0	$ 0

Fair Value Measurements - Fair

Fair Value Measurements - Fair Value of Debt Recorded at Carrying Value (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair Value of Long-Term Debt Recorded at Carrying Value
Carrying Value	$ 35,583	$ 33,013
Fair Value	33,160	31,315
SCE
Fair Value of Long-Term Debt Recorded at Carrying Value
Carrying Value	30,515	28,494
Fair Value	$ 27,994	$ 26,712

Debt and Credit Agreements - Su

Debt and Credit Agreements - Summarizes Long-Term Debt (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Debt
Current portion of long-term debt	$ (2,049)	$ (2,697)
Long-term debt (include $1,468 and $1,515 related to a VIE at respective dates)	33,534	30,316
Edison International Parent and Other:
Debt
Current portion of long-term debt	(800)	(500)
Unamortized debt discount/premium and issuance costs, net	(32)	(31)
Long-term debt (include $1,468 and $1,515 related to a VIE at respective dates)	4,268	4,019
Edison International Parent and Other: | Debentures and notes:
Debt
Long-term debt	$ 5,100	4,550
Edison International Parent and Other: | Debentures and notes: | Minimum
Debt
Interest rate on debt (as a percent)	4.125%
Edison International Parent and Other: | Debentures and notes: | Maximum
Debt
Interest rate on debt (as a percent)	8.125%
SCE
Debt
Current portion of long-term debt	$ (1,249)	(2,197)
Unamortized debt discount/premium and issuance costs, net	(181)	(165)
Long-term debt (include $1,468 and $1,515 related to a VIE at respective dates)	29,266	26,297
SCE | Debentures and notes:
Debt
Long-term debt	$ 306	306
SCE | Debentures and notes: | Minimum
Debt
Interest rate on debt (as a percent)	5.06%
SCE | Debentures and notes: | Maximum
Debt
Interest rate on debt (as a percent)	6.65%
SCE | First and refunding mortgage bonds:
Debt
Long-term debt	$ 27,400	24,700
SCE | First and refunding mortgage bonds: | Minimum
Debt
Interest rate on debt (as a percent)	1.20%
SCE | First and refunding mortgage bonds: | Maximum
Debt
Interest rate on debt (as a percent)	6.05%
SCE | Pollution-control bonds:
Debt
Long-term debt	$ 752	752
SCE | Pollution-control bonds: | Minimum
Debt
Interest rate on debt (as a percent)	1.45%
SCE | Pollution-control bonds: | Maximum
Debt
Interest rate on debt (as a percent)	4.50%
SCE | Senior secured recovery bonds
Debt
Long-term debt	$ 1,532	1,579
SCE | Senior secured recovery bonds | Minimum
Debt
Interest rate on debt (as a percent)	0.86%
SCE | Senior secured recovery bonds | Maximum
Debt
Interest rate on debt (as a percent)	5.11%
SCE | Other long-term debt
Debt
Long-term debt	$ 706	1,322
Other long-term debt	$ 706	722
Term loan		$ 600
Variable rate on debt (as a percent)	0.90%	0.90%

Debt and Credit Agreements - Lo

Debt and Credit Agreements - Long-Term Debt Maturities (Details) $ in Millions	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
2025	$ 2,049
2026	1,900
2027	2,501
2028	2,942
2029	3,363
SCE
Debt Instrument [Line Items]
2025	1,249
2026	1,900
2027	1,901
2028	1,792
2029	$ 2,313

Debt and Credit Agreements - Na

Debt and Credit Agreements - Narrative (Details) $ in Millions	Jan. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Oct. 31, 2023 USD ($)
Debt
Commitment		$ 4,850
Outstanding letters of credit		$ 6
SCE
Debt
Covenant debt to total capitalization ratio		0.65
Actual debt to capitalization ratio		0.58
SCE | 4.875% first and refunding mortgage bonds due in 2027 | Subsequent Event
Debt
Debt, face amount	$ 850
Interest rate on debt (as a percent)	5.45%
SCE | 5.20% first and refunding mortgage bonds due in 2034 | Subsequent Event
Debt
Debt, face amount	$ 650
Interest rate on debt (as a percent)	5.90%
SCE | Standby letters of credit
Debt
Commitment			$ 625
Outstanding letters of credit		$ 118
Unused capacity		$ 507
Edison International Parent and Other:
Debt
Covenant debt to total capitalization ratio		0.70
Actual debt to capitalization ratio		0.65

Debt and Credit Agreements (Cre

Debt and Credit Agreements (Credit Facilities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	May 31, 2024
Line of Credit Facility
Commitment	$ 4,850
Outstanding borrowings	1,705
Outstanding letters of credit	6
Amount available	$ 3,139
Multi-year credit facilities | Edison International Parent and Other:
Line of Credit Facility
Variable rate on debt (as a percent)	1.28%
Commitment	$ 1,500
Outstanding borrowings	445
Outstanding letters of credit	0
Amount available	1,055
Contingent maximum available borrowing			$ 2,000
Multi-year credit facilities | Edison International Parent and Other: | Commercial Paper
Line of Credit Facility
Outstanding borrowings	444	$ 246
Net of discount	$ 1	$ 0
Weighted average interest rate (as a percent)	4.86%	5.82%
Multi-year credit facilities | SCE
Line of Credit Facility
Variable rate on debt (as a percent)	1.08%
Commitment	$ 3,350
Outstanding borrowings	1,260
Outstanding letters of credit	6
Amount available	2,084
Contingent maximum available borrowing			$ 4,000
Multi-year credit facilities | SCE | Commercial Paper
Line of Credit Facility
Outstanding borrowings	1,259	$ 1,554
Net of discount	$ 1	$ 4
Weighted average interest rate (as a percent)	4.95%	5.82%
Other long-term debt | SCE
Line of Credit Facility
Variable rate on debt (as a percent)	0.90%	0.90%
Other long-term debt	$ 706	$ 722

Derivative Instruments - Summar

Derivative Instruments - Summarizes the Gross and Net Fair Values (Details) - SCE - Commodity Contract - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivative Assets Short-Term
Gross amounts recognized	$ 213	$ 94
Gross amounts offset in the consolidated balance sheets	(1)	(3)
Cash collateral posted	0	0
Net amounts presented in the consolidated balance sheets	212	91
Derivative Liabilities Short-Term
Gross amounts recognized	47	77
Gross amounts offset in the consolidated balance sheets	(1)	(3)
Cash collateral posted	(46)	(74)
Net amounts presented in the consolidated balance sheets	$ 0	$ 0

Derivative Instruments - Narrat

Derivative Instruments - Narrative (Details) - SCE - Commodity Contract - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Derivatives
Cash collateral posted for liability	$ 74
Cash collateral posted/received	46	$ 74
Other Current Liabilities
Derivatives
Cash collateral posted/received	46
Other Current Assets
Derivatives
Cash collateral not offset against liability	$ 28

Derivative Instruments - Summ_2

Derivative Instruments - Summaries of Gain (Loss) on Hedging Activities (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Realized	$ (409)	$ (14)	$ 178
Unrealized	$ 149	$ (322)	$ 310

Derivative Instruments - Summ_3

Derivative Instruments - Summaries of Notional Volumes and Derivatives Notional Values (Details) - SCE	12 Months Ended
	Dec. 31, 2024 GWh Bcfe	Dec. 31, 2023 GWh Bcfe
Electricity options, swaps and forwards
Derivatives
Notional volumes of derivative instruments	3,295	3,494
Natural gas options, swaps and forwards
Derivatives
Notional volumes of derivative instruments | Bcfe	4,000,000,000	31,000,000,000
Congestion revenue rights
Derivatives
Notional volumes of derivative instruments	8,141	35,011

Revenue - Summary of SCE (Detai

Revenue - Summary of SCE (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue
Total operating revenue	$ 17,599	$ 16,338	$ 17,220
SCE
Revenue
Revenue from contracts with customers	18,395	17,020	16,760
Alternative revenue programs and other operating revenue	(848)	(745)	412
Total operating revenue	17,547	16,275	17,172
Receivables from contracts with customers	2,900	2,500
Accrued unbilled revenues	845	741
SCE | Commercial
Revenue
Revenue from contracts with customers	8,000	7,333	7,028
SCE | Residential
Revenue
Revenue from contracts with customers	7,060	6,421	6,707
SCE | Other
Revenue
Revenue from contracts with customers	$ 3,335	$ 3,266	$ 3,025

Revenue - Narrative (Details)

Revenue - Narrative (Details) - SCE - West of Devers $ in Millions	Dec. 31, 2024 USD ($)
Revenue
Contract with customer liability	$ 354
Deferred revenue current	13
Deferred revenue non-current	$ 341

Income Taxes - Components of In

Income Taxes - Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 1	$ 0	$ 2
State	7	0	13
Total current	8	0	15
Deferred:
Federal	59	101	(103)
State	(50)	7	(74)
Total deferred	9	108	(177)
Total	17	108	(162)
SCE
Current:
Federal	3	0	0
State	48	5	2
Total current	51	5	2
Deferred:
Federal	118	149	(44)
State	(49)	30	(67)
Total deferred	69	179	(111)
Total	$ 120	$ 184	$ (109)

Income Taxes - Components of Ne

Income Taxes - Components of Net Accumulated Deferred Income Tax Liability (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets:
Property	$ 943	$ 894
Wildfire-related	254	356
Nuclear decommissioning trust assets in excess of nuclear ARO liability	373	380
Loss and credit carryforwards	3,703	3,486
Regulatory balances	610	626
Pension and postretirement benefits other than pensions, net	117	127
Leases	335	345
Other	177	159
Other	6,512	6,373
Less: valuation allowance	17	17
Total	6,495	6,356
Deferred tax liabilities:
Property	11,220	10,627
Regulatory balances	1,299	1,450
Nuclear decommissioning trust assets	373	380
Leases	335	345
Other	187	187
Total	13,414	12,989
Accumulated deferred income tax liability, net	6,919	6,633
Unrecognized tax benefits, net of deferred tax asset and tax credit carryforwards	397
Operating loss carryforwards valuation allowance		363
SEC Schedule, 12-09, Valuation Allowance, Operating Loss Carryforward
Deferred tax assets:
Less: valuation allowance	17
SCE
Deferred tax assets:
Property	929	877
Wildfire-related	251	354
Nuclear decommissioning trust assets in excess of nuclear ARO liability	373	380
Loss and credit carryforwards	2,242	2,103
Regulatory balances	610	626
Pension and postretirement benefits other than pensions, net	21	25
Leases	335	345
Other	167	147
Other	4,928	4,857
Less: valuation allowance	0	0
Total	4,928	4,857
Deferred tax liabilities:
Property	11,202	10,611
Regulatory balances	1,299	1,450
Nuclear decommissioning trust assets	373	380
Leases	335	345
Other	155	158
Total	13,364	12,944
Accumulated deferred income tax liability, net	8,436	8,087
Unrecognized tax benefits, net of deferred tax asset and tax credit carryforwards	$ 327
Operating loss carryforwards valuation allowance		$ 299

Income Taxes - Summary of NOL a

Income Taxes - Summary of NOL and Carryforwards (Details) $ in Millions	Dec. 31, 2024 USD ($)
Carryforwards
Loss Carryforwards	$ 3,377
Credit Carryforwards	723
Expire in 2025
Carryforwards
Loss Carryforwards	7
Credit Carryforwards	0
Expire between 2026 to 2029
Carryforwards
Loss Carryforwards	28
Credit Carryforwards	0
Expire between 2030 to 2044
Carryforwards
Loss Carryforwards	1,719
Credit Carryforwards	699
No expiration date
Carryforwards
Loss Carryforwards	1,623
Credit Carryforwards	24
SCE
Carryforwards
Loss Carryforwards	2,253
Credit Carryforwards	316
SCE | Expire in 2025
Carryforwards
Loss Carryforwards	7
Credit Carryforwards	0
SCE | Expire between 2026 to 2029
Carryforwards
Loss Carryforwards	12
Credit Carryforwards	0
SCE | Expire between 2030 to 2044
Carryforwards
Loss Carryforwards	786
Credit Carryforwards	290
SCE | No expiration date
Carryforwards
Loss Carryforwards	1,448
Credit Carryforwards	$ 26

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2024 USD ($) MW	Dec. 31, 2024 USD ($) MW	Dec. 31, 2023 USD ($) MW	Dec. 31, 2022 USD ($)
Income Tax Disclosure [Line Items]
Deferred tax expense		$ 9	$ 108	$ (177)
Investment tax credit	$ 231
Unrecognized tax benefits that would impact the effective tax rate		72
SCE
Income Tax Disclosure [Line Items]
Deferred tax expense		69	$ 179	$ (111)
Unrecognized tax benefits that would impact the effective tax rate		$ 66
SCE | SCE Power Purchases Contracts
Income Tax Disclosure [Line Items]
Power generating capacity of projects owned controlled | MW	200	5,200	3,343
SCE | SCE Power Purchases Contracts
Income Tax Disclosure [Line Items]
Power generating capacity of projects owned controlled | MW	112.5
Capistrano Wind
Income Tax Disclosure [Line Items]
Deferred tax expense		$ 107	$ 106

Income Taxes - Effective Tax Ra

Income Taxes - Effective Tax Rate (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Line Items]
Income from operations before income taxes	$ 1,563	$ 1,515	$ 662
Provision for income tax at federal statutory rate of 21%	$ 328	$ 318	$ 139
Statutory tax rate (as a percent)	21%	21%	21%
(Decrease) increase in income tax from:
State tax, net of federal income tax effect	$ (24)	$ 3	$ (70)
Property-related	(279)	(205)	(219)
Corporate-owned life insurance cash surrender value	(9)	(8)	(9)
Other	1	0	(3)
Total	$ 17	$ 108	$ (162)
Effective tax rate	1.10%	7.10%	(24.50%)
SCE
Income Tax Disclosure [Line Items]
Income from operations before income taxes	$ 1,914	$ 1,781	$ 845
Provision for income tax at federal statutory rate of 21%	$ 402	$ 374	$ 177
Statutory tax rate (as a percent)	21%	21%	21%
(Decrease) increase in income tax from:
State tax, net of federal income tax effect	$ 0	$ 23	$ (57)
Property-related	(279)	(205)	(219)
Corporate-owned life insurance cash surrender value	(9)	(8)	(9)
Other	6	0	(1)
Total	$ 120	$ 184	$ (109)
Effective tax rate	6.30%	10.30%	(12.90%)

Income Taxes - Unrecognized Tax

Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reconciliation of Unrecognized Tax Benefits
Beginning balance	$ 430	$ 646	$ 613
Tax positions taken during the current year, Increases	66	65	54
Tax positions taken during a prior year, Increases	1	13	0
Tax positions taken during a prior year, decreases	(34)	(294)	(21)
Ending balance	463	430	646
SCE
Reconciliation of Unrecognized Tax Benefits
Beginning balance	418	374	340
Tax positions taken during the current year, Increases	66	65	54
Tax positions taken during a prior year, Increases	0	4	0
Tax positions taken during a prior year, decreases	(27)	(25)	(20)
Ending balance	$ 457	$ 418	$ 374

Income Taxes - Interest and Pen

Income Taxes - Interest and Penalties (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax Disclosure [Line Items]
Accrued interest and penalties	$ 0	$ 0
Net after-tax interest and penalties tax expense	0	0	$ 0
SCE
Income Tax Disclosure [Line Items]
Accrued interest and penalties	36	28
Net after-tax interest and penalties tax expense	$ 7	$ 4	$ 2

Compensation and Benefit Plan_2

Compensation and Benefit Plans - Employee Savings Plan (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Contribution Plans [Line Items]
Employer contributions	$ 136	$ 121	$ 103
SCE
Defined Contribution Plans [Line Items]
Employer contributions	$ 134	$ 119	$ 101

Compensation and Benefit Plan_3

Compensation and Benefit Plans - Narrative (Details) - USD ($) shares in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension and Other Postretirement Benefits
Health reimbursement monthly contribution	$ 200
Permissible range of asset class weights (percent)	5%
Assumed average equity risk premium (percent)	4%
Forecasted return on private equity and opportunistic investments (percent)	3%
Performance incentive plan award (in shares)	71
Share-based compensation available for grant (in shares)	13
Employee Stock Option
Pension and Other Postretirement Benefits
Expiration period	10 years
Volatility period	56 months	58 months	60 months
Employee Stock Option | Minimum
Pension and Other Postretirement Benefits
Vesting period	3 years
Employee Stock Option | Maximum
Pension and Other Postretirement Benefits
Vesting period	4 years
Pension Plan
Pension and Other Postretirement Benefits
Expected contributions	$ 44,000,000
Gain (loss) from change in discount rate	$ 159,000,000	$ (96,000,000)
Basis points in the discount rate	0.0052
Discount rate	5.56%	5.04%
Publicly traded equity investments located in the US (percent)	64%	62%
Pension Plan | Defined Benefit Plan, Equity Securities, US
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	17.30%
Pension Plan | Defined Benefit Plan, Equity Securities, Non-US
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	9.70%
Pension Plan | Fixed Income
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	55%
Pension Plan | Opportunistic Alternative Investments
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	18%
Pension Plan | SCE
Pension and Other Postretirement Benefits
Expected contributions		$ 15,000,000
Gain (loss) from change in discount rate	$ 146,000,000	$ (92,000,000)
Basis points in the discount rate	(0.0032)
Discount rate	5.56%	5.04%	5.36%
Other Postretirement Benefits Plan
Pension and Other Postretirement Benefits
Expected contributions	$ 0
Gain (loss) from change in discount rate	$ 41,000,000	$ 553,000,000
Discount rate	5.60%	5.06%
Eligibility age	55 years
Service period for eligibility (at least) (years)	10 years
Publicly traded equity investments located in the US (percent)	78%	78%
Other Postretirement Benefits Plan | Fixed Income
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	65%
Other Postretirement Benefits Plan | Opportunistic Alternative Investments
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	6%
Other Postretirement Benefits Plan | Global Equities
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	29%
Other Postretirement Benefits Plan | SCE
Pension and Other Postretirement Benefits
Gain (loss) from change in discount rate		$ 550,000,000
Discount rate	5.60%	5.06%
Other Pension, Postretirement and Supplemental Plans | Defined Benefit Plan, Equity Securities, Non-US
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	95%
Other Pension, Postretirement and Supplemental Plans | Global Equities
Pension and Other Postretirement Benefits
Target plan asset allocations (percent)	5%

Compensation and Benefit Plan_4

Compensation and Benefit Plans - Information on Pension Plan Assets and Benefit Obligations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Amounts recognized in the consolidated balance sheets consist of:
Long-term liabilities	$ (384)	$ (415)
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Other deferred credits and other long-term liabilities	3,566	3,258
Pension Plan
Change in projected benefit obligation
Projected benefit obligation at beginning of year	3,647	3,524
Service cost	103	101	$ 120
Interest cost	175	180	111
Actuarial (gain) loss	(59)	96
Benefits paid	(230)	(254)
Projected benefit obligation at end of year	3,636	3,647	3,524
Change in plan assets
Fair value of plan assets at beginning of year	3,609	3,462
Actual return on plan assets	192	369
Employer contributions	37	32
Benefits paid	(230)	(254)
Fair value of plan assets at end of year	3,608	3,609	$ 3,462
(Underfunded)/Overfunded status at end of year	(28)	(38)
Amounts recognized in the consolidated balance sheets consist of:
Long-term assets	166	169
Current liabilities	(27)	(30)
Long-term liabilities	(167)	(177)
Amounts recognized in the consolidated balance sheets	(28)	(38)
Amounts recognized in accumulated other comprehensive loss consist of:
Net gain (loss)	8	21
Amounts recognized as a regulatory liability	(146)	(159)
Accumulated benefit obligation at end of year	3,508	3,495
Pension plans with plan assets in excess of an accumulated benefit obligation:
Projected benefit obligation	3,636	3,647
Accumulated benefit obligation	3,508	3,495
Fair value of plan assets	$ 3,608	$ 3,609
Weighted average assumptions used to determine obligations at end of year:
Discount rate	5.56%	5.04%
Rate of compensation increase	4%	4%
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Ultimate rate	5.54%	5.86%	4.50%
Other Postretirement Benefits Plan
Change in projected benefit obligation
Projected benefit obligation at beginning of year	$ 773	$ 1,331
Service cost	14	20	$ 34
Interest cost	38	67	56
Change in plan provisions	23	0
Actuarial (gain) loss	(34)	(567)
Plan participants' contributions	26	28
Benefits paid	(99)	(106)
Projected benefit obligation at end of year	741	773	1,331
Change in plan assets
Fair value of plan assets at beginning of year	2,275	2,187
Actual return on plan assets	78	162
Employer contributions	1	4
Plan participants' contributions	26	28
Benefits paid	(99)	(106)
Fair value of plan assets at end of year	2,281	2,275	$ 2,187
(Underfunded)/Overfunded status at end of year	1,540	1,502
Amounts recognized in the consolidated balance sheets consist of:
Long-term assets	1,544	1,506
Current liabilities	(1)	0
Long-term liabilities	(3)	(4)
Amounts recognized in the consolidated balance sheets	1,540	1,502
Amounts recognized in accumulated other comprehensive loss consist of:
Net gain (loss)	(4)	(5)
Amounts recognized as a regulatory liability	$ (1,544)	$ (1,505)
Weighted average assumptions used to determine obligations at end of year:
Discount rate	5.60%	5.06%
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Rate assumed for following year	6.25%	6.50%
Ultimate rate	5%	5%	5%
SCE
Amounts recognized in the consolidated balance sheets consist of:
Long-term liabilities	$ (92)	$ (105)
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Other deferred credits and other long-term liabilities	3,518	3,206
SCE | Pension Plan
Change in projected benefit obligation
Projected benefit obligation at beginning of year	3,278	3,159
Service cost	101	99	$ 118
Service cost, excluding certain liabilities	99	97
Interest cost	162	166	101
Interest cost, excluding certain liabilities	157	162
Actuarial (gain) loss	(47)	82
Benefits paid	(198)	(222)
Projected benefit obligation at end of year	3,289	3,278	3,159
Change in plan assets
Fair value of plan assets at beginning of year	3,415	3,275
Actual return on plan assets	182	349
Employer contributions	17	13
Benefits paid	(198)	(222)
Fair value of plan assets at end of year	3,416	3,415	$ 3,275
(Underfunded)/Overfunded status at end of year	127	137
Amounts recognized in the consolidated balance sheets consist of:
Long-term assets	137	149
Current liabilities	(1)	(2)
Long-term liabilities	(9)	(10)
Amounts recognized in the consolidated balance sheets	127	137
Amounts recognized in accumulated other comprehensive loss consist of:
Net gain (loss)	13	8
Amounts recognized as a regulatory liability	(133)	(159)
Accumulated benefit obligation at end of year	3,172	3,136
Pension plans with plan assets in excess of an accumulated benefit obligation:
Projected benefit obligation	3,289	3,278
Accumulated benefit obligation	3,172	3,136
Fair value of plan assets	$ 3,416	$ 3,415
Weighted average assumptions used to determine obligations at end of year:
Discount rate	5.56%	5.04%	5.36%
Rate of compensation increase	4%	4%
SCE | Pension Plan | Parent Company
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Other deferred credits and other long-term liabilities	$ 88	$ 94
SCE | Other Postretirement Benefits Plan
Change in projected benefit obligation
Projected benefit obligation at beginning of year	769	1,323
Service cost	14	20	$ 34
Interest cost	38	67	55
Change in plan provisions	23	0
Actuarial (gain) loss	(34)	(563)
Plan participants' contributions	26	28
Benefits paid	(99)	(106)
Projected benefit obligation at end of year	737	769	1,323
Change in plan assets
Fair value of plan assets at beginning of year	2,275	2,187
Actual return on plan assets	78	162
Employer contributions	1	4
Plan participants' contributions	26	28
Benefits paid	(99)	(106)
Fair value of plan assets at end of year	2,281	2,275	$ 2,187
(Underfunded)/Overfunded status at end of year	1,544	1,506
Amounts recognized in the consolidated balance sheets consist of:
Long-term assets	1,544	1,506
Current liabilities	0	0
Long-term liabilities	0	0
Amounts recognized in the consolidated balance sheets	1,544	1,506
Amounts recognized in accumulated other comprehensive loss consist of:
Net gain (loss)	0	0
Amounts recognized as a regulatory liability	$ (1,544)	$ (1,505)
Weighted average assumptions used to determine obligations at end of year:
Discount rate	5.60%	5.06%
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Rate assumed for following year	6.25%	6.50%
Ultimate rate	5%	5%

Compensation and Benefit Plan_5

Compensation and Benefit Plans - Net Periodic Pension Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plan
Pension and Other Postretirement Benefits
Service cost	$ 103	$ 101	$ 120
Non-service cost (benefit)
Interest cost	175	180	111
Expected return on plan assets	(232)	(214)	(227)
Settlement costs	0	0	4
Amortization of prior service cost	0	0	0
Amortization of net loss	4	3	5
Regulatory adjustment	(23)	(47)	6
Total non-service benefit	(76)	(78)	(101)
Total expense	27	23	19
Other Postretirement Benefits Plan
Pension and Other Postretirement Benefits
Service cost	14	20	34
Non-service cost (benefit)
Interest cost	38	67	56
Expected return on plan assets	(113)	(107)	(97)
Amortization of prior service cost	(1)	(1)	(2)
Amortization of net loss	(95)	(50)	(45)
Regulatory adjustment	157	71	55
Total non-service benefit	(14)	(20)	(33)
Total expense	0	0	1
SCE
Non-service cost (benefit)
Total non-service benefit	(91)	(100)	(136)
SCE | Pension Plan
Pension and Other Postretirement Benefits
Service cost	101	99	118
Non-service cost (benefit)
Interest cost	162	166	101
Expected return on plan assets	(219)	(202)	(215)
Settlement costs	0	0	4
Amortization of prior service cost	0	0	0
Amortization of net loss	2	2	2
Regulatory adjustment	(22)	(47)	6
Total non-service benefit	(77)	(81)	(102)
Total expense	24	18	16
SCE | Other Postretirement Benefits Plan
Pension and Other Postretirement Benefits
Service cost	14	20	34
Non-service cost (benefit)
Interest cost	38	67	55
Expected return on plan assets	(113)	(107)	(97)
Amortization of prior service cost	(1)	(1)	(2)
Amortization of net loss	(95)	(50)	(45)
Regulatory adjustment	157	71	55
Total non-service benefit	(14)	(20)	(34)
Total expense	$ 0	$ 0	$ 0

Compensation and Benefit Plan_6

Compensation and Benefit Plans - Other Changes in Pension Plan Assets and Benefit Obligations (Details) - Pension Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension and Other Postretirement Benefits
Net (gain) loss	$ (9)	$ 6	$ (45)
Settlement charges	0	0	(4)
Amortization of net gain	(4)	(2)	(8)
Total (gain) loss recognized in other comprehensive income	(13)	4	(57)
Total recognized in expense and other comprehensive income	14	27	(38)
SCE
Pension and Other Postretirement Benefits
Net (gain) loss	(2)	6	(24)
Settlement charges	0	0	(4)
Amortization of net gain	(2)	(2)	(5)
Total (gain) loss recognized in other comprehensive income	(4)	4	(33)
Total recognized in expense and other comprehensive income	$ 20	$ 22	$ (17)

Compensation and Benefit Plan_7

Compensation and Benefit Plans - Weighted Average Assumptions (Details)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Plan
Pension and Other Postretirement Benefits
Discount rate	5.04%	5.36%	2.75%
Rate of compensation increase	4%	4%	4%
Expected long-term return on plan assets	6.75%	6.50%	5.50%
Interest crediting rate for cash balance account
Starting rate	5.54%	5.86%	3.12%
Ultimate rate	5.54%	5.86%	4.50%
Other Postretirement Benefits Plan
Pension and Other Postretirement Benefits
Discount rate	5.06%	5.43%	2.95%
Expected long-term return on plan assets	4.88%	5%	3.50%
Interest crediting rate for cash balance account
Current year	6.50%	6.75%	6.25%
Ultimate rate	5%	5%	5%
SCE | Other Postretirement Benefits Plan
Interest crediting rate for cash balance account
Ultimate rate	5%	5%

Compensation and Benefit Plan_8

Compensation and Benefit Plans - Future Benefit Payments (Details) $ in Millions	Dec. 31, 2024 USD ($)
Pension Plan
Years ended December 31,
2025	$ 332
2026	344
2027	338
2028	332
2029	324
2030 – 2034	1,496
Other Postretirement Benefits Plan
Years ended December 31,
2025	49
2026	50
2027	54
2028	55
2029	55
2030 – 2034	282
SCE | Pension Plan
Years ended December 31,
2025	291
2026	301
2027	304
2028	299
2029	294
2030 – 2034	1,370
SCE | Other Postretirement Benefits Plan
Years ended December 31,
2025	48
2026	50
2027	54
2028	54
2029	55
2030 – 2034	$ 281

Compensation and Benefit Plan_9

Compensation and Benefit Plans - Pension Assets Fair Value (Details) - Pension Plan - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension and Other Postretirement Benefits
Total	$ 3,682	$ 3,574
Receivables and payables, net	(74)	35
Net plan assets available for benefits	$ 3,608	$ 3,609	$ 3,462
Publicly traded equity investments located in the US (percent)	64%	62%
Level 1
Pension and Other Postretirement Benefits
Total	$ 644	$ 654
Level 2
Pension and Other Postretirement Benefits
Total	1,498	1,460
NAV
Pension and Other Postretirement Benefits
Total	1,540	1,460
U.S. government and agency securities
Pension and Other Postretirement Benefits
Total	597	608
U.S. government and agency securities | Level 1
Pension and Other Postretirement Benefits
Total	244	256
U.S. government and agency securities | Level 2
Pension and Other Postretirement Benefits
Total	353	352
U.S. government and agency securities | NAV
Pension and Other Postretirement Benefits
Total	0	0
Corporate stocks
Pension and Other Postretirement Benefits
Total	$ 152	$ 181
Corporate stocks | Russell Indexes
Pension and Other Postretirement Benefits
Performance percentage benchmark, percentage	33%	36%
Corporate stocks | MSCI
Pension and Other Postretirement Benefits
Performance percentage benchmark, percentage	67%	64%
Corporate stocks | Level 1
Pension and Other Postretirement Benefits
Total	$ 148	$ 176
Corporate stocks | Level 2
Pension and Other Postretirement Benefits
Total	4	5
Corporate stocks | NAV
Pension and Other Postretirement Benefits
Total	0	0
Corporate bonds
Pension and Other Postretirement Benefits
Total	1,084	1,057
Corporate bonds | Level 1
Pension and Other Postretirement Benefits
Total	$ 0	$ 0
Actual plan asset allocations, percentage	56%	57%
Corporate bonds | Level 2
Pension and Other Postretirement Benefits
Total	$ 1,084	$ 1,057
Corporate bonds | NAV
Pension and Other Postretirement Benefits
Total	0	0
Common/collective funds
Pension and Other Postretirement Benefits
Total	$ 652	$ 584
Common/collective funds | Standard and Poor's 500
Pension and Other Postretirement Benefits
Performance percentage benchmark, percentage	38%	41%
Common/collective funds | MSCI all country world index exUS
Pension and Other Postretirement Benefits
Performance percentage benchmark, percentage	38%	40%
Common/collective funds | Non-index U.S. equity fund
Pension and Other Postretirement Benefits
Performance percentage benchmark, percentage	19%	16%
Common/collective funds | Level 1
Pension and Other Postretirement Benefits
Total	$ 0	$ 0
Common/collective funds | Level 2
Pension and Other Postretirement Benefits
Total	0	0
Common/collective funds | NAV
Pension and Other Postretirement Benefits
Total	652	584
Partnerships/joint ventures
Pension and Other Postretirement Benefits
Total	$ 680	657
Actual plan asset allocations, percentage	16%
Partnerships/joint ventures | Level 1
Pension and Other Postretirement Benefits
Total	$ 0	0
Partnerships/joint ventures | Level 2
Pension and Other Postretirement Benefits
Total	0	0
Partnerships/joint ventures | NAV
Pension and Other Postretirement Benefits
Total	680	657
Other investment entities
Pension and Other Postretirement Benefits
Total	58	58
Other investment entities | Level 1
Pension and Other Postretirement Benefits
Total	0	0
Other investment entities | Level 2
Pension and Other Postretirement Benefits
Total	0	0
Other investment entities | NAV
Pension and Other Postretirement Benefits
Total	58	58
Registered investment companies
Pension and Other Postretirement Benefits
Total	380	365
Registered investment companies | Level 1
Pension and Other Postretirement Benefits
Total	238	212
Registered investment companies | Level 2
Pension and Other Postretirement Benefits
Total	0	0
Registered investment companies | NAV
Pension and Other Postretirement Benefits
Total	142	153
Interest-bearing cash
Pension and Other Postretirement Benefits
Total	14	10
Interest-bearing cash | Level 1
Pension and Other Postretirement Benefits
Total	14	10
Interest-bearing cash | Level 2
Pension and Other Postretirement Benefits
Total	0	0
Interest-bearing cash | NAV
Pension and Other Postretirement Benefits
Total	0	0
Other
Pension and Other Postretirement Benefits
Total	65	54
Other | Level 1
Pension and Other Postretirement Benefits
Total	0	0
Other | Level 2
Pension and Other Postretirement Benefits
Total	57	46
Other | NAV
Pension and Other Postretirement Benefits
Total	8	8
Collateralized mortgage obligations and other asset backed securities
Pension and Other Postretirement Benefits
Total	$ 77	$ 78
Private equity and venture capital funds including branded consumer products, clean and information technology and healthcare
Pension and Other Postretirement Benefits
Actual plan asset allocations, percentage	69%	74%
Asset backed securities including distressed mortgages
Pension and Other Postretirement Benefits
Actual plan asset allocations, percentage		17%
Broad range of financial assets in all global markets
Pension and Other Postretirement Benefits
Actual plan asset allocations, percentage	5%	5%
Fixed Income
Pension and Other Postretirement Benefits
Actual plan asset allocations, percentage	9%	0%
Domestic mortgage backed securities
Pension and Other Postretirement Benefits
Actual plan asset allocations, percentage	70%	68%
High yield debt securities
Pension and Other Postretirement Benefits
Actual plan asset allocations, percentage	30%	32%
Fixed Income Funds
Pension and Other Postretirement Benefits
Actual plan asset allocations, percentage	10%	13%
Equity Funds
Pension and Other Postretirement Benefits
Actual plan asset allocations, percentage	34%	28%
SCE
Pension and Other Postretirement Benefits
Net plan assets available for benefits	$ 3,416	$ 3,415	$ 3,275

Compensation and Benefit Pla_10

Compensation and Benefit Plans - Postretirement Benefits Other than Pensions (Details) - Other Postretirement Benefits Plan - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	$ 2,295	$ 2,298
Receivables and payables, net	(14)	(23)
Net plan assets available for benefits	2,281	2,275	$ 2,187
Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	622	703
Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	1,319	1,249
NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	354	346
U.S. government and agency securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	540	653
U.S. government and agency securities | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	489	569
U.S. government and agency securities | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	51	84
U.S. government and agency securities | NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Corporate stocks
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	$ 83	$ 87
Corporate stocks | Russell Indexes
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Performance percentage benchmark, percentage	78%	74%
Corporate stocks | MSCI All Country World Index
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Performance percentage benchmark, percentage	22%	26%
Corporate stocks | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	$ 81	$ 85
Corporate stocks | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	2	2
Corporate stocks | NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Corporate notes and bonds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	1,126	1,064
Corporate notes and bonds | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Corporate notes and bonds | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	1,126	1,064
Corporate notes and bonds | NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Common/collective funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	$ 235	$ 222
Common/collective funds | MSCI All Country World Index Investable Market Index
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual plan asset allocations, percentage	47%	45%
Common/collective funds | Non-index U.S. equity fund
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual plan asset allocations, percentage	41%	40%
Common/collective funds | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	$ 0	$ 0
Common/collective funds | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Common/collective funds | NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	235	222
Partnerships
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	119	124
Partnerships | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Partnerships | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Partnerships | NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	119	124
Registered investment companies
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	52	47
Registered investment companies | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	52	47
Registered investment companies | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Registered investment companies | NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Interest-bearing cash
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	45	29
Interest-bearing cash | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Interest-bearing cash | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	45	29
Interest-bearing cash | NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Other
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	95	72
Other | Level 1
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	2
Other | Level 2
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	95	70
Other | NAV
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	0	0
Collateralized mortgage obligations and other asset backed securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Receivables and payables, net	$ 343	$ 237
Private equity and venture capital funds including branded consumer products, clean and information technology and healthcare
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual plan asset allocations, percentage	71%	65%
Asset backed securities including distressed mortgages
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual plan asset allocations, percentage	22%	28%
Broad range of financial assets in all global markets
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual plan asset allocations, percentage	7%	7%
Money Market Funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual plan asset allocations, percentage	73%	70%
Defined Benefit Plan, Equity Securities, Small Cap
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Actual plan asset allocations, percentage	27%	30%
Municipal Notes
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Total	$ 52	$ 58
SCE
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net plan assets available for benefits	$ 2,281	$ 2,275	$ 2,187

Compensation and Benefit Pla_11

Compensation and Benefit Plans - Summarizes Total Expense and Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation
Total stock-based compensation expense	$ 57	$ 46	$ 42
Income tax benefits related to stock-based compensation expense	23	7	9
Stock options
Share-based Compensation
Total stock-based compensation expense	13	12	13
Performance shares
Share-based Compensation
Total stock-based compensation expense	21	15	13
Restricted stock units
Share-based Compensation
Total stock-based compensation expense	21	17	14
Other
Share-based Compensation
Total stock-based compensation expense	2	2	2
SCE
Share-based Compensation
Total stock-based compensation expense	32	26	22
Income tax benefits related to stock-based compensation expense	14	5	5
SCE | Stock options
Share-based Compensation
Total stock-based compensation expense	7	6	7
SCE | Performance shares
Share-based Compensation
Total stock-based compensation expense	10	8	6
SCE | Restricted stock units
Share-based Compensation
Total stock-based compensation expense	15	12	9
SCE | Other
Share-based Compensation
Total stock-based compensation expense	$ 0	$ 0	$ 0

Compensation and Benefit Pla_12

Compensation and Benefit Plans - Option Pricing (Details) - Stock options	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation
Expected terms (in years)	4 years 8 months 12 days	4 years 9 months 18 days	5 years
Risk-free interest rate, minimum	3.70%	3.60%	1.60%
Risk-free interest rate, maximum	4.50%	4.70%	4.10%
Expected volatility, minimum	23.60%	29%	27.80%
Expected volatility, maximum	30.40%	29.60%	28.60%
Weighted average volatility	30.30%	29.10%	27.80%
Minimum
Share-based Compensation
Expected dividend yield	3.60%	4.20%	4%
Maximum
Share-based Compensation
Expected dividend yield	4.70%	4.70%	5%
Weighted Average
Share-based Compensation
Expected dividend yield	4.70%	4.20%	4%

Compensation and Benefit Pla_13

Compensation and Benefit Plans - Option Activity (Details) - Stock options $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) $ / shares shares
Stock Options
Beginning balance (in shares) | shares	11,418,243
Grants (in shares) | shares	749,968
Forfeited or expired (in shares) | shares	(107,158)
Exercised (in shares) | shares	(3,417,478)
Ending balance (in shares) | shares	8,643,575
Vested and expected to vest (in shares) | shares	8,438,864
Exercisable (in shares) | shares	6,651,227
Weighted Average Fair Value
Beginning balance, weighted average exercise price (in dollars per share) | $ / shares	$ 64.30
Granted, weighted average exercise price (in dollars per share) | $ / shares	66.70
Forfeited or expired, weighted average exercise price (in dollars per share) | $ / shares	71.89
Exercised, weighted average exercise price (in dollars per share) | $ / shares	64.49
Ending balance, weighted average exercise price (in dollars per share) | $ / shares	64.33
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares	64.40
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 64.79
Outstanding, remaining contractual term	5 years 3 days
Vested and expected to vest, remaining contractual term	4 years 11 months 12 days
Exercisable, remaining contractual term	4 years 2 months 8 days
Vested and expected to vest, intrinsic value | $	$ 130
Exercisable, intrinsic value | $	100
Exercise of option, tax benefit | $	$ 13
SCE
Stock Options
Beginning balance (in shares) | shares	5,192,275
Grants (in shares) | shares	390,760
Forfeited or expired (in shares) | shares	(98,077)
Exercised (in shares) | shares	(1,892,980)
Affiliate transfers, net (in shares) | shares	14,472
Ending balance (in shares) | shares	3,606,450
Vested and expected to vest (in shares) | shares	3,508,129
Exercisable (in shares) | shares	2,609,173
Weighted Average Fair Value
Beginning balance, weighted average exercise price (in dollars per share) | $ / shares	$ 64.22
Granted, weighted average exercise price (in dollars per share) | $ / shares	66.82
Forfeited or expired, weighted average exercise price (in dollars per share) | $ / shares	71.44
Exercised, weighted average exercise price (in dollars per share) | $ / shares	64.49
Affiliate transfers, net, weighted average grant date fair value (in dollars per share) | $ / shares	64.22
Ending balance, weighted average exercise price (in dollars per share) | $ / shares	64.18
Vested and expected to vest, weighted average exercise price (in dollars per share) | $ / shares	64.25
Exercisable, weighted average exercise price (in dollars per share) | $ / shares	$ 64.66
Outstanding, remaining contractual term	5 years 3 months 7 days
Vested and expected to vest, remaining contractual term	5 years 2 months 15 days
Exercisable, remaining contractual term	4 years 3 months 29 days
Vested and expected to vest, intrinsic value | $	$ 55
Exercisable, intrinsic value | $	40
Exercise of option, tax benefit | $	$ 7

Compensation and Benefit Pla_14

Compensation and Benefit Plans - Unrecognized Compensation (Details) - Stock options $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Pension and Other Postretirement Benefits
Unrecognized compensation cost, net of expected forfeitures (in millions)	$ 7
Weighted average period (in years)	1 year 3 months 18 days
SCE
Pension and Other Postretirement Benefits
Unrecognized compensation cost, net of expected forfeitures (in millions)	$ 4
Weighted average period (in years)	1 year 3 months 18 days

Compensation and Benefit Pla_15

Compensation and Benefit Plans - Options Data (Details) - Stock options - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation
Weighted average grant date fair value per option granted (in dollars per share)	$ 13.32	$ 12.69	$ 9.92
Fair value of options vested	$ 14	$ 8	$ 8
Value of options exercised	$ 45	$ 14	$ 17
SCE
Share-based Compensation
Weighted average grant date fair value per option granted (in dollars per share)	$ 13.36	$ 12.71	$ 9.92
Fair value of options vested	$ 7	$ 7	$ 5
Value of options exercised	$ 25	$ 11	$ 12

Compensation and Benefit Pla_16

Compensation and Benefit Plans - Non Option Activity (Details)	12 Months Ended
	Dec. 31, 2024 $ / shares shares
Performance shares
Shares
Beginning balance (in shares) | shares	496,841
Granted (in shares) | shares	276,838
Forfeited (in shares) | shares	(5,872)
Vested (in shares) | shares	(249,287)
Ending balance (in shares) | shares	518,520
Weighted Average Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 71.93
Granted (in dollars per share) | $ / shares	72.21
Forfeited (in dollars per share) | $ / shares	72.57
Vested (in dollars per share) | $ / shares	67.90
Ending balance (in dollars per share) | $ / shares	$ 74.01
Restricted stock units
Shares
Beginning balance (in shares) | shares	892,412
Granted (in shares) | shares	325,501
Forfeited (in shares) | shares	(22,886)
Vested (in shares) | shares	(318,579)
Affiliate transfers, net (in shares) | shares	0
Ending balance (in shares) | shares	876,448
Weighted Average Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 61.19
Granted (in dollars per share) | $ / shares	66.88
Forfeited (in dollars per share) | $ / shares	65.24
Vested (in dollars per share) | $ / shares	55.71
Affiliate transfers, net (in dollars per share) | $ / shares	0
Ending balance (in dollars per share) | $ / shares	$ 65.19
SCE | Performance shares
Shares
Beginning balance (in shares) | shares	249,091
Granted (in shares) | shares	144,339
Forfeited (in shares) | shares	(5,282)
Vested (in shares) | shares	(123,197)
Affiliate transfers, net (in shares) | shares	23
Ending balance (in shares) | shares	264,974
Weighted Average Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 71.99
Granted (in dollars per share) | $ / shares	72.37
Forfeited (in dollars per share) | $ / shares	72.23
Vested (in dollars per share) | $ / shares	67.73
Affiliate transfers, net (in dollars per share) | $ / shares	71.99
Ending balance (in dollars per share) | $ / shares	$ 74.17
SCE | Restricted stock units
Shares
Beginning balance (in shares) | shares	645,549
Granted (in shares) | shares	233,112
Forfeited (in shares) | shares	(18,908)
Vested (in shares) | shares	(238,921)
Affiliate transfers, net (in shares) | shares	(105)
Ending balance (in shares) | shares	620,727
Weighted Average Fair Value
Beginning balance (in dollars per share) | $ / shares	$ 61.17
Granted (in dollars per share) | $ / shares	66.88
Forfeited (in dollars per share) | $ / shares	65.34
Vested (in dollars per share) | $ / shares	55.89
Affiliate transfers, net (in dollars per share) | $ / shares	61.17
Ending balance (in dollars per share) | $ / shares	$ 65.22

Investments - Amortized Cost an

Investments - Amortized Cost and Fair Value of Trust Investments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair Value
Fair Values	$ 4,286	$ 4,173
SCE
Fair Value
Fair Values	4,286	4,173
Deferred income taxes related to unrealized gains	373	380
SCE | Total debt securities and other
Fair Value
Amortized Costs	2,428	2,233
Fair Values	2,655	2,515
SCE | Municipal bonds
Fair Value
Amortized Costs	729	636
Fair Values	860	757
SCE | Government and agency securities
Fair Value
Amortized Costs	1,201	1,072
Fair Values	1,341	1,186
SCE | Corporate bonds
Fair Value
Amortized Costs	346	361
Fair Values	392	401
SCE | Short-term investments and receivables/payables
Fair Value
Amortized Costs	152	164
Fair Values	62	171
SCE | Repurchase Agreements
Fair Value
Fair Values	18	38
SCE | Equity securities
Fair Value
Fair Values	$ 1,631	$ 1,658

Investments - Narrative (Detail

Investments - Narrative (Details) - USD ($) $ in Billions	Dec. 31, 2024	Dec. 31, 2023
SCE
Investments
Cumulative unrealized holding gains, net of losses	$ 1.7	$ 1.8

Investments - Summarizes of Gai

Investments - Summarizes of Gains and Losses (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Investments
Gross realized gains	$ 326	$ 323	$ 150
Gross realized losses	(24)	(73)	(127)
Net unrealized (losses) gains for equity securities	$ (19)	$ 103	$ (369)

Regulatory Assets and Liabili_3

Regulatory Assets and Liabilities - Narrative (Details) - SCE	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Regulatory Assets
Regulatory assets related to deferred income taxes, recovery period, low range (in years)	1 year	1 year
Regulatory assets related to deferred income taxes, recovery period, high range (in years)	60 years	60 years
Low end of the range of remaining original amortization (in years)	10 years	10 years
High end of the range of remaining original amortization (in years)	40 years	40 years
Unamortized investments, net of accumulated amortization
Regulatory Assets
Return rate earned on assets included in rate base (as a percent)	7.87%	7.44%

Regulatory Assets and Liabili_4

Regulatory Assets and Liabilities - Regulatory Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Regulatory Assets
Total current	$ 2,748	$ 2,524
Total long-term	8,886	8,897
SCE
Regulatory Assets
Total current	2,748	2,524
Total long-term	8,886	8,897
Total regulatory assets	11,634	11,421
SCE | Regulatory balancing and memorandum accounts
Regulatory Assets
Total current	2,723	2,502
Total long-term	867	1,257
SCE | Other
Regulatory Assets
Total current	25	22
Total long-term	100	114
SCE | Deferred income taxes
Regulatory Assets
Total long-term	5,982	5,533
SCE | Unamortized investments, net of accumulated amortization
Regulatory Assets
Total long-term	115	110
SCE | Unamortized losses on reacquired debt
Regulatory Assets
Total long-term	88	99
SCE | Environmental remediation
Regulatory Assets
Total long-term	222	226
SCE | Recovery assets
Regulatory Assets
Total long-term	$ 1,512	$ 1,558

Regulatory Assets and Liabili_5

Regulatory Assets and Liabilities - Regulatory Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Regulatory Liabilities
Total current	$ 1,347	$ 763
Total long-term	10,159	9,420
SCE
Regulatory Liabilities
Total current	1,347	763
Total long-term	10,159	9,420
Total regulatory liabilities	11,506	10,183
SCE | Regulatory balancing and memorandum accounts
Regulatory Liabilities
Total current	1,144	704
Total long-term	2,023	1,395
SCE | Energy derivatives
Regulatory Liabilities
Total current	165	16
SCE | Other
Regulatory Liabilities
Total current	38	43
Total long-term	15	17
SCE | Costs of removal
Regulatory Liabilities
Total long-term	2,520	2,635
SCE | Deferred income taxes
Regulatory Liabilities
Total long-term	2,163	2,211
SCE | Recoveries in excess of ARO liabilities
Regulatory Liabilities
Total long-term	1,748	1,498
SCE | Pension and other postretirement benefits
Regulatory Liabilities
Total long-term	$ 1,690	$ 1,664

Regulatory Assets and Liabili_6

Regulatory Assets and Liabilities - Balancing Accounts (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	$ 423	$ 1,660
Energy procurement related costs | SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	(97)	397
Public purpose and energy efficiency | SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	(1,708)	(1,736)
GRC related balancing accounts | SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	976	1,361
FERC related balancing accounts | SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	125	(211)
Wildfire risk mitigation and insurance | SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	741	1,169
Wildfire and drought restoration | SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	238	417
Tax accounting memorandum account | SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	(40)	108
Other | SCE
Component Of Balancing Account [Line Items]
Assets, net of liabilities	$ 188	$ 155
Vegetation Management Balancing Account
Component Of Balancing Account [Line Items]
Authorized recovery threshold	115%
Wildfire Mitigation Risk Balancing Account
Component Of Balancing Account [Line Items]
Authorized recovery threshold	110%

Commitments and Contingencies -

Commitments and Contingencies - Schedule of Power Purchase Agreements (Details) - SCE - Power Purchase Agreement $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)
Long-Term Purchase Commitment [Line Items]
2025	$ 2,986
2026	3,139
2027	2,704
2028	2,423
2029	2,421
Thereafter	16,493
Total future commitments	30,166
Long-term lease expense	$ 57

Commitments and Contingencies_2

Commitments and Contingencies - Additional Information (Power Purchase Agreements) (Details) - Power Purchase Agreement - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Long-Term Purchase Commitment [Line Items]
2025	$ 25
2026	140
2027	274
2028	381
2029	450
Thereafter	5,370
Purchase cost	$ 4,000	$ 4,500	$ 5,100

Commitments and Contingencies_3

Commitments and Contingencies - Other commitments (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Commitments [Line Items]
2025	$ 62
2026	59
2027	59
2028	59
2029	48
Thereafter	142
Total	429
Other contractual obligations
Other Commitments [Line Items]
Purchase cost	$ 65	$ 60	$ 58

Commitments and Contingencies_4

Commitments and Contingencies - 2017/2018 Wildfire/Mudslide Events (Details) $ in Millions		1 Months Ended	65 Months Ended
	Feb. 20, 2025 plaintiff	Oct. 31, 2021 USD ($)	May 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Nov. 30, 2018 a item individual	Jan. 31, 2018 item individual	Dec. 04, 2017 a item individual
Commitments and Contingencies
Charge for wildfire-related claims				$ 1,001	$ 1,398
SCE
Commitments and Contingencies
Charge for wildfire-related claims					1,398
December 2017 Wildfires | SCE
Commitments and Contingencies
Acres burned | a								280,000
Structures destroyed | item								1,343
Fatalities | individual								2
November 2018 Wildfires | SCE
Commitments and Contingencies
Acres burned | a						100,000
Structures destroyed | item						1,643
Fatalities | individual						3
Structures damaged | item						364
Additional fatalities | individual						4
November 2018 Wildfires | SCE | Individual Plaintiff Settlements | Subsequent Event
Commitments and Contingencies
Percentage of outstanding individual plaintiff claims for which demands raised	100%
November 2018 Wildfires | SCE | SED Settlement
Commitments and Contingencies
Third-party uninsured claims cost recovery waiver		$ 250
Montecito Mudslides | SCE
Commitments and Contingencies
Structures destroyed | item							135
Fatalities | individual							21
Structures damaged | item							324
Additional fatalities | individual							2
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Charge for wildfire-related claims				$ 426	715
2017/2018 Wildfire/Mudslide Events | SCE
Commitments and Contingencies
Charge for wildfire-related claims					$ 715
2017/2018 Wildfire/Mudslide Events | SCE | Subsequent Event
Commitments and Contingencies
Number of plaintiffs | plaintiff	290
2017/2018 Wildfire/Mudslide Events | SCE | Individual Plaintiff Settlements | Subsequent Event
Commitments and Contingencies
Number of plaintiffs | plaintiff	13,600
2017/2018 Wildfire/Mudslide Events | SCE | SED Settlement
Commitments and Contingencies
Charge for wildfire-related claims		550
Fine to state		110
Shareholder-funded safety measures costs		$ 65
Thomas Koenigstein Fires And Montecito Mudslides | SCE | Individual Plaintiff Settlements | Subsequent Event
Commitments and Contingencies
Percentage of outstanding individual plaintiff claims for which demands raised	94%
Thomas Koenigstein Fires And Montecito Mudslides | SCE | SED Settlement
Commitments and Contingencies
Third-party uninsured claims cost recovery waiver			$ 125

Commitments and Contingencies_5

Commitments and Contingencies - 2017 Creek Fire (Details) - 2017 Creek Fire - SCE $ in Millions	1 Months Ended
	Dec. 31, 2017 USD ($) a property structure plaintiff injury
Commitments and Contingencies
Acres burned | a	16,000
Structures destroyed	123
Structures damaged	81
Number of Injured | injury	3
Legal and other costs | $	$ 40
Number of plaintiffs | plaintiff	7
Number of plaintiff properties | property	1

Commitments and Contingencies_6

Commitments and Contingencies - 2019 Saddle Ridge Fire (Details) - Saddle Ridge Fire - SCE	Oct. 31, 2019 a individual item
Commitments and Contingencies
Acres burned | a	9,000
Structures destroyed | item	19
Structures damaged | item	88
Fatalities | individual	1
Number of Injured | individual	8

Commitments and Contingencies_7

Commitments and Contingencies - 2020 Bobcat Fire (Details) - Bobcat fire - SCE $ in Millions	1 Months Ended
	Sep. 30, 2020 USD ($) a item individual
Commitments and Contingencies
Acres burned | a	116,000
Number of Injured | individual	6
Estimated fire suppression costs | $	$ 80
Home/Residential
Commitments and Contingencies
Structures destroyed	87
Structures damaged	28
Commercial property
Commitments and Contingencies
Structures destroyed	1
Minor structures
Commitments and Contingencies
Structures destroyed	83
Structures damaged	19

Commitments and Contingencies_8

Commitments and Contingencies - 2020 Silverado Fire (Details) - Silverado Fire - SCE $ in Millions	1 Months Ended	12 Months Ended
	Oct. 31, 2020 USD ($) a conductor	Dec. 31, 2024 USD ($)	Sep. 30, 2022 individual structure	May 31, 2022 structure
Commitments and Contingencies
Acres burned | a	12,000
Structures destroyed				5
Number of Injured | individual			2
Number of structures damaged or destroyed				4
Estimated fire suppression costs | $	$ 20
Amount of fine paid | $		$ 2
Number of conductors | conductor	2
Other Structures
Commitments and Contingencies
Structures damaged			9
Avocado Orchard
Commitments and Contingencies
Acres burned | a	200

Commitments and Contingencies_9

Commitments and Contingencies - 2022 Coastal Fire (Details) - Coastal Fire - SCE $ in Millions	1 Months Ended
	May 31, 2022 USD ($) a item individual
Commitments and Contingencies
Acres burned | a	200
Structures destroyed	20
Structures damaged	11
Number of Injured | individual	2
Estimated fire suppression costs | $	$ 3

Commitments and Contingencie_10

Commitments and Contingencies - 2022 Fairview Fire (Details) - Fairview Fire - SCE $ in Millions	1 Months Ended
	Sep. 30, 2022 USD ($) a individual item
Commitments and Contingencies
Acres burned | a	28,000
Structures destroyed | item	22
Fatalities | individual	2
Number of civilian injury | individual	1
Number of Injured | individual	2
Estimated fire suppression costs | $	$ 39
Home/Residential
Commitments and Contingencies
Structures damaged | item	5
Minor structures
Commitments and Contingencies
Structures damaged | item	17

Commitments and Contingencie_11

Commitments and Contingencies - Settlements Paid (Details) - USD ($) $ in Millions	12 Months Ended			66 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2024
Other Commitments [Line Items]
Total	$ 1,140	$ 1,224	$ 1,924	$ 10,018
2017/2018 Wildfire/Mudslide Events
Other Commitments [Line Items]
Total	779	1,034	1,911	9,454
Other Wildfire Events
Other Commitments [Line Items]
Total	$ 361	$ 190	$ 13	$ 564

Commitments and Contingencie_12

Commitments and Contingencies - Accrual Roll forward (Details) - USD ($) $ in Millions	12 Months Ended			66 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2024
Loss contingency accrual roll forward
Balance, beginning	$ 1,398
Increase in accrued estimated losses	743
Amounts paid	(1,140)	$ (1,224)	$ (1,924)	$ (10,018)
Balance, end	1,001	1,398		1,001
2017/2018 Wildfire/Mudslide Events
Loss contingency accrual roll forward
Balance, beginning	715
Increase in accrued estimated losses	490
Amounts paid	(779)	(1,034)	(1,911)	(9,454)
Balance, end	426	715		426
Other Wildfire Events
Loss contingency accrual roll forward
Balance, beginning	683
Increase in accrued estimated losses	253
Amounts paid	(361)	(190)	$ (13)	(564)
Balance, end	$ 575	$ 683		$ 575

Commitments and Contingencie_13

Commitments and Contingencies - Payments to be Made Under Settlement Agreements (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Oct. 31, 2021
Commitments and Contingencies
Current portion of Wildfire-related claims liabilities		$ 60	$ 30
Long term wildfire-related claims liabilities		941	1,368
Charge for wildfire-related claims		1,001	1,398
SCE
Commitments and Contingencies
Current portion of Wildfire-related claims liabilities		60	30
Long term wildfire-related claims liabilities		941	1,368
Charge for wildfire-related claims			1,398
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Current portion of Wildfire-related claims liabilities		48
Long term wildfire-related claims liabilities		378	48
Charge for wildfire-related claims		426	715
Estimate of possible loss		340	637
Loss contingency accrual, period increase (decrease)	$ 490
2017/2018 Wildfire/Mudslide Events | SED Settlement
Commitments and Contingencies
Current portion of Wildfire-related claims liabilities		19	14
2017/2018 Wildfire/Mudslide Events | Settled Litigation
Commitments and Contingencies
Current portion of Wildfire-related claims liabilities		29	16
2017/2018 Wildfire/Mudslide Events | SED Settlement
Commitments and Contingencies
Long term wildfire-related claims liabilities		38
2017/2018 Wildfire/Mudslide Events | SCE
Commitments and Contingencies
Current portion of Wildfire-related claims liabilities			30
Long term wildfire-related claims liabilities			685
Charge for wildfire-related claims			715
2017/2018 Wildfire/Mudslide Events | SCE | SED Settlement
Commitments and Contingencies
Charge for wildfire-related claims				$ 550
Other Wildfire Events
Commitments and Contingencies
Current portion of Wildfire-related claims liabilities		12
Long term wildfire-related claims liabilities		563
Charge for wildfire-related claims		$ 575	683
Other Wildfire Events | SCE
Commitments and Contingencies
Current portion of Wildfire-related claims liabilities			0
Long term wildfire-related claims liabilities			683
Charge for wildfire-related claims			$ 683

Commitments and Contingencie_14

Commitments and Contingencies - Expense Summary (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Commitments and Contingencies
Charge for wildfire-related claims	$ 743
Expected insurance recoveries	(3,335)
Subsidiary of Common Parent
Commitments and Contingencies
Charge for wildfire-related claims	4	$ 3	$ 9
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Charge for wildfire-related claims	490
Expected insurance recoveries	(2,440)
SCE
Commitments and Contingencies
Charge for wildfire-related claims	743	814	1,868
Expected insurance recoveries	(96)	(149)	(399)
Expected recoveries through electric rates	(36)	(39)	(238)
Total pre-tax charge	611	626	1,231
Income tax benefit	(172)	(174)	(344)
Total after-tax charge	439	452	887
SCE | 2017/2018 Wildfire/Mudslide Events And The Other Wildfire Events
Commitments and Contingencies
Expected insurance recoveries	(2,700)
Expected recoveries through electric rates	(617)
SCE | 2017/2018 Wildfire/Mudslide Events And The Other Wildfire Events | Aggregate
Commitments and Contingencies
Charge for wildfire-related claims	11,000
Total after-tax charge	5,600
SCE | Other Wildfire Events
Commitments and Contingencies
Charge for wildfire-related claims	253	184	572
Expected insurance recoveries	(96)	(149)	(399)
Expected recoveries through electric rates	(9)	(2)	(162)
Total pre-tax charge	148	33	11
Income tax benefit	(42)	(9)	(3)
Total after-tax charge	106	24	8
SCE | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Charge for wildfire-related claims	490	630	1,296
Expected insurance recoveries	0	0	0
Expected recoveries through electric rates	(27)	(37)	(76)
Total pre-tax charge	463	593	1,220
Income tax benefit	(130)	(165)	(341)
Total after-tax charge	333	$ 428	$ 879
SCE | 2017/2018 Wildfire/Mudslide Events | Aggregate
Commitments and Contingencies
Expected insurance recoveries	$ (2,000)

Commitments and Contingencie_15

Commitments and Contingencies - Recoveries (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended							13 Months Ended
	Feb. 28, 2025	Jul. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Commitments and Contingencies
Insurance recoveries				$ 3,335
SCE
Commitments and Contingencies
Expected revenue through electric rates				36	$ 39		$ 238
Insurance recoveries				96	149		399
Wildfire insurance expense						$ 450
SCE | Wildfire liability insurance | Subsidiary of Common Parent
Commitments and Contingencies
Wildfire insurance expense				132	213
Proceeds from self-insurance program				300	150
SCE | Commercial insurance carriers
Commitments and Contingencies
Wildfire insurance expense						357
Other Wildfire Events | SCE
Commitments and Contingencies
Expected revenue through electric rates				9	2		162
Insurance recoveries				96	149		399
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries				2,440
2017/2018 Wildfire/Mudslide Events | SCE
Commitments and Contingencies
Expected revenue through electric rates				27	37		76
Wildfire insurance coverage				1,000
Self insurance				10
Insurance recoveries				0	$ 0		$ 0
November 2018 Wildfires | SCE
Commitments and Contingencies
Wildfire insurance coverage				1,000
Self insurance				10
EIS Wildfire Liability Insurance Policy | SCE | Subsequent Event
Commitments and Contingencies
Self insurance	$ 50
Aggregate | Wildfire Post2018 Events | CPUC | SCE
Commitments and Contingencies
Expected revenue through electric rates				2,700
Aggregate | Other Wildfire Events | CPUC | SCE
Commitments and Contingencies
Expected revenue through electric rates				152
Aggregate | Other Wildfire Events | FERC | SCE
Commitments and Contingencies
Expected revenue through electric rates				465
Aggregate | 2017/2018 Wildfire/Mudslide Events | SCE
Commitments and Contingencies
Insurance recoveries				2,000
Aggregate | 2017 Creek Fire | SCE
Commitments and Contingencies
Insurance recoveries				$ 18
Insurance coverage through June 2022 | SCE
Commitments and Contingencies
Wildfire insurance coverage						1,000		$ 1,000	$ 1,000	$ 1,200
Self insurance						63		163	130	165
Insurance coverage through June 2023 | SCE
Commitments and Contingencies
Coverage net						$ 937		$ 837	$ 870	$ 1,000
Customer-funded self-insurance | SCE
Commitments and Contingencies
Wildfire insurance coverage		$ 1,000
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
Forecast | SCE
Commitments and Contingencies
Wildfire insurance expense			$ 50

Commitment and Contingencies -

Commitment and Contingencies - Summary of Expected Recoveries (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Commitments and Contingencies
Insurance recoveries	$ 3,335
Insurance recoveries, through electric rates	647	$ 703
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries	2,440
Insurance recoveries, through electric rates	64	37
Other Wildfire Events
Commitments and Contingencies
Insurance recoveries	895
Insurance recoveries, through electric rates	583	666
Insurance recoveries
Commitments and Contingencies
Insurance recoveries	2,718
Insurance recoveries | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries	2,000
Insurance recoveries | Other Wildfire Events
Commitments and Contingencies
Insurance recoveries	718
FERC recoveries
Commitments and Contingencies
Insurance recoveries	465
FERC recoveries | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries	440
FERC recoveries | Other Wildfire Events
Commitments and Contingencies
Insurance recoveries	25
CPUC- RMBA recoveries
Commitments and Contingencies
Insurance recoveries	12
CPUC- RMBA recoveries | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries	0
CPUC- RMBA recoveries | Other Wildfire Events
Commitments and Contingencies
Insurance recoveries	12
CPUC-WEMA deferral
Commitments and Contingencies
Insurance recoveries	140
CPUC-WEMA deferral | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries	0
CPUC-WEMA deferral | Other Wildfire Events
Commitments and Contingencies
Insurance recoveries	140
Long-term insurance receivables
Commitments and Contingencies
Insurance recoveries, through electric rates	434	512
Long-term insurance receivables | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries, through electric rates	0	0
Long-term insurance receivables | Other Wildfire Events
Commitments and Contingencies
Insurance recoveries, through electric rates	434	512
FERC related balancing accounts
Commitments and Contingencies
Insurance recoveries, through electric rates	73	51
FERC related balancing accounts | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries, through electric rates	64	37
FERC related balancing accounts | Other Wildfire Events
Commitments and Contingencies
Insurance recoveries, through electric rates	9	14
CPUC-WEMA
Commitments and Contingencies
Insurance recoveries, through electric rates	140	140
CPUC-WEMA | 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance recoveries, through electric rates	0	0
CPUC-WEMA | Other Wildfire Events
Commitments and Contingencies
Insurance recoveries, through electric rates	$ 140	$ 140

Commitments and Contingencie_16

Commitments and Contingencies - Recoveries through Electric Rates (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended			65 Months Ended	66 Months Ended
	Oct. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	May 31, 2024	Dec. 31, 2024
Commitments and Contingencies
Total		$ 1,140	$ 1,224	$ 1,924		$ 10,018
SCE | Woolsey Subrogation Settlement
Commitments and Contingencies
Legal and other costs	$ 1,000
CPUC cost recovery proceedings, capital recovery portion	84
Wildfire costs recovery requested	5,400
Total	$ 4,400
Thomas Koenigstein Fires And Montecito Mudslides | SCE
Commitments and Contingencies
Costs to be recovered, prior to specified time, percent					60%
Loss contingency, uninsured claims and other costs					$ 2,700
Costs to be recovered, after specified time, percent					60%
Thomas Koenigstein Fires And Montecito Mudslides | SCE | SED Settlement
Commitments and Contingencies
Third-party uninsured claims cost recovery waiver					$ 125
Thomas and Koenigstein Fires and Montecito Mudslides | SCE
Commitments and Contingencies
Requested increase (decrease) revenue requirement					1,600
Loss contingency, uninsured claims					1,300
Legal and other costs					300
CPUC cost recovery proceedings, capital recovery portion					55
Incremental restoration costs related to wildfires					$ 65

Commitments and Contingencie_17

Commitments and Contingencies - Subsequent Events to Eaton Fire (Details) - Eaton Fire - SCE - Subsequent Event	1 Months Ended
	Jan. 31, 2025 USD ($) a item
Commitments and Contingencies
Acres burned | a	14,000
Loss contingency, civilian fatalities	17
Loss contingency, personnel injuries/illnesses	9
Estimated fire suppression costs | $	$ 100,000,000
Single Residence
Commitments and Contingencies
Structures destroyed	6,018
Other Minor Structures
Commitments and Contingencies
Structures destroyed	3,146
Structures damaged	260
Multiple Residences
Commitments and Contingencies
Structures destroyed	96
Structures damaged	28
Mixed Commercial/Residential And Nonresidential Commercial Structures
Commitments and Contingencies
Structures destroyed	158
Structures damaged	35
Residential Structure
Commitments and Contingencies
Structures damaged	750

Commitments and Contingencie_18

Commitments and Contingencies - Environmental Remediation (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) site	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Commitments and Contingencies
Environmental loss contingency, statement of financial position flag	Other deferred credits and other long-term liabilities
SCE
Commitments and Contingencies
Recorded estimated minimum liability	$ 235
Environmental remediation regulatory assets	222
Expected recovery from incentive mechanism	$ 35
Expected recovery from incentive mechanism (percent)	90%
Recovery through customer rates	$ 187
Recovery through customer rates (percent)	100%
Clean up (period)	35 years
Expected remediation costs, low end of range	$ 9
Expected remediation costs, high end of range	21
Environmental remediation expense	$ 17	$ 11	$ 7
Material sites | SCE
Commitments and Contingencies
Identified remediation sites (number) | site	21
Minimum estimated liability	$ 1
Recorded estimated minimum liability	232
Cost may exceed liability	118
Material sites | SCE | San Onofre
Commitments and Contingencies
Recorded estimated minimum liability	$ 154
Immaterial sites | SCE
Commitments and Contingencies
Identified remediation sites (number) | site	19
Recorded estimated minimum liability	$ 3
Cost may exceed liability	$ 2

Commitments and Contingencie_19

Commitments and Contingencies - Nuclear Insurance (Details) - USD ($) $ in Millions		12 Months Ended
	Jan. 01, 2023	Dec. 31, 2024
San Onofre
Commitments and Contingencies
Federal loss limit, bodily injury and property damage from nuclear incident		$ 560
Palo Verde (nuclear)
Commitments and Contingencies
Federal loss limit, bodily injury and property damage from nuclear incident		16,300
SCE and other owners of San Onofre and Palo Verde
Commitments and Contingencies
Maximum private primary insurance	$ 500
SCE
Commitments and Contingencies
Maximum per incident, prior events		255
Maximum per incident, prior events, annually		38
Limit on retroactive premium adjustments assessment, per year		17
SCE | San Onofre
Commitments and Contingencies
Minimum federal requirement of nuclear property insurance		50
SCE | Palo Verde (nuclear)
Commitments and Contingencies
Maximum per incident		79
Maximum per incident annual		12
Minimum federal requirement of nuclear property insurance		$ 1,100

Leases - Narrative (Details)

Leases - Narrative (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Leases
Lease income	$ 18	$ 17	$ 18
Minimum
Leases
Finance lease term	15 years
Maximum
Leases
Finance lease term	65 years
Power Purchase Agreement | Minimum
Leases
Operating lease term	15 years
Power Purchase Agreement | Maximum
Leases
Operating lease term	20 years
Office Leases | Minimum
Leases
Operating lease term	3 years
Office Leases | Maximum
Leases
Operating lease term	72 years
Other operating leases | Minimum
Leases
Operating lease term	5 years
Other operating leases | Maximum
Leases
Operating lease term	13 years

Leases - Future Lease Payments

Leases - Future Lease Payments (Details) - SCE $ in Millions	Dec. 31, 2024 USD ($)
PPA operating leases
Operating Leases
2025	$ 106
2026	89
2027	84
2028	84
2029	85
Thereafter	698
Total lease payments	1,146
Amount representing interest	265
Lease liabilities	881
Other operating leases
Operating Leases
2025	64
2026	58
2027	54
2028	48
2029	41
Thereafter	104
Total lease payments	369
Amount representing interest	76
Lease liabilities	$ 293

Leases - Lease Expense (Details

Leases - Lease Expense (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Leases
Total lease cost	$ 1,879	$ 2,836	$ 3,293
PPA operating leases
Leases
Operating lease cost	115	503	580
Variable lease cost	1,700	2,277	2,661
Total lease cost	1,815	2,780	3,241
Other operating leases
Leases
Total lease cost	$ 64	$ 56	$ 52

Leases - Other Information (Det

Leases - Other Information (Details) - SCE - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
PPA operating leases
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 115	$ 503	$ 580
Operating ROU assets obtained in exchange for lease obligations	$ 11	$ 226	$ 20
Weighted average remaining operating lease term (in years)	12 years 6 months	13 years 4 months 13 days	9 years 5 months 1 day
Operating leases weighted average discount rate	4.30%	4.30%	2.95%
Other operating leases
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 62	$ 55	$ 50
Operating ROU assets obtained in exchange for lease obligations	$ 79	$ 69	$ 76
Weighted average remaining operating lease term (in years)	8 years 10 months 9 days	9 years 6 months 21 days	10 years 4 months 17 days
Operating leases weighted average discount rate	4.50%	4.22%	3.78%

Leases (Lessor) (Details)

Leases (Lessor) (Details) - SCE $ in Millions	Dec. 31, 2024 USD ($)
Lessor
2025	$ 12
2026	8
2027	8
2028	8
2029	7
Thereafter	118
Total	$ 161

Equity - Narrative (Details)

Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended		12 Months Ended
	Dec. 31, 2023	Nov. 30, 2023	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 12, 2024	Jul. 25, 2024	May 31, 2024
Equity
Preferred stock repurchased					$ 656	$ 289	$ 0
Gain on shares acquired					$ 1	$ 16
Redemption amount (in dollars per share)					$ 1,000
Redemption amount following change in criteria (in dollars per share)					$ 1,020
Preferred stock, shares authorized (in shares)	50,000,000				50,000,000	50,000,000
Preferred stock, value, outstanding	$ 1,673				$ 1,645	$ 1,673
SCE
Equity
Preferred stock repurchased					628	0	$ 0
Preferred stock, value, outstanding	$ 2,495				$ 2,220	2,495
Series A Preferred Stock
Equity
Average price shares acquired (in dollars per share)	$ 971	$ 925
Preferred stock, shares outstanding (in shares)					1,159,317
Preferred stock, dividend rate, (as a percent)					5.375%
Common stock repurchased	29,186	61,497
Preferred stock current redemption amount	$ 28	$ 57				$ 28
Preferred stock, shares issued (in shares)					1,159,317
Series B Preferred Stock
Equity
Average price shares acquired (in dollars per share)	$ 955	$ 904	$ 967	$ 952
Preferred stock, shares outstanding (in shares)	532,454				503,454	532,454
Preferred stock, dividend rate, (as a percent)					5%
Common stock repurchased	133,323	84,223	9,000	20,000
Preferred stock current redemption amount	$ 127	$ 76				$ 127
Preferred stock repurchased			$ 9	$ 19
Preferred stock, shares issued (in shares)	532,454				503,454	532,454
Preferred Stock
Equity
Liquidation value (in dollars per share)					$ 1,000
Preferred Stock | SCE
Equity
Preferred stock, shares issued (in shares)					0
Dividends in arrears preferred stock					$ 0
Preferred stock, value, outstanding	$ 2,495				$ 2,220	$ 2,495
Cumulative preferred stock, $100 Dollars par value | SCE
Equity
Preferred stock, par value (in dollars per share)					$ 100
Preferred stock, shares authorized (in shares)					12,000,000
Cumulative preferred stock $25 Dollars par value | SCE
Equity
Preferred stock, par value (in dollars per share)					$ 25
Preferred stock, shares authorized (in shares)					24,000,000
No par value | SCE
Equity
Preferred stock, par value (in dollars per share)					$ 0
Preferred stock, shares authorized (in shares)					50,000,000
Series N Preference Stock | SCE
Equity
Preferred stock, value, outstanding										$ 350
At-the-market Program (ATM)
Equity
Aggregate sale price					$ 500
2025 Repurchase Program
Equity
Share repurchase program, authorized, amount								$ 75
2024 Repurchase Program
Equity
Share repurchase program, authorized, amount					$ 0				$ 200
Stock repurchased and retired during period (in shares)					2,412,203
Average price shares acquired (in dollars per share)					$ 82.91

Equity - Summarizes Preference

Equity - Summarizes Preference Stocks (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 01, 2024	May 31, 2024
Equity
Gain on shares acquired	$ 1	$ 16
Redemption amount (in dollars per share)	$ 1,000
Redemption amount following change in criteria (in dollars per share)	$ 1,020
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preference stocks summary
Dividends (in dollars per share)			$ 3.31
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 1,645	$ 1,673
Edison International's preference stock of utility	$ 2,175	$ 2,443
Preferred Stock
Equity
Liquidation value (in dollars per share)	$ 1,000
6.95% Series N
Equity
Preferred stock, dividend rate, (as a percent)	6.95%	6.95%
SCE
Preference stocks summary
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 2,220	$ 2,495
SCE | Preferred Stock
Equity
Preferred stock, shares issued (in shares)	0
Dividends in arrears preferred stock	$ 0
Preference stocks summary
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	2,220	2,495
Less: issuance costs	$ (45)	$ (52)
SCE | Series E Preferred Stock
Equity
Preferred stock, shares outstanding (in shares)	0	0
Preference stocks summary
Preferred stock, variable dividend rate, (as a percent)	4.199%	4.199%
Redemption price (in dollars per share)	$ 1,000	$ 1,000
Dividends (in dollars per share)	$ 24.418	$ 24.418
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 0	$ 350
SCE | Series G Preferred Stock
Equity
Preferred stock, shares outstanding (in shares)	88,004	88,004
Preferred stock, dividend rate, (as a percent)	5.10%	5.10%
Preference stocks summary
Redemption price (in dollars per share)	$ 2,500	$ 2,500
Dividends (in dollars per share)	$ 127.500	$ 127.500
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 220	$ 220
SCE | Series H Preferred Stock
Equity
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, dividend rate, (as a percent)	2.99%	2.99%
Preference stocks summary
Redemption price (in dollars per share)	$ 2,500	$ 2,500
Dividends (in dollars per share)	$ 187.776	$ 187.776
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 0	$ 275
SCE | 5.375% Series J
Equity
Preferred stock, shares outstanding (in shares)	130,004	130,004
Preferred stock, dividend rate, (as a percent)	5.375%	5.375%
Preference stocks summary
Redemption price (in dollars per share)	$ 2,500	$ 2,500
Dividends (in dollars per share)	$ 134.375	$ 134.375
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 325	$ 325
SCE | 5.45% Series K
Equity
Preferred stock, shares outstanding (in shares)	120,004	120,004
Preferred stock, dividend rate, (as a percent)	5.45%	5.45%
Preference stocks summary
Redemption price (in dollars per share)	$ 2,500	$ 2,500
Dividends (in dollars per share)	$ 136.250	$ 136.250
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 300	$ 300
SCE | 5.00% Series L
Equity
Preferred stock, shares outstanding (in shares)	190,004	190,004
Preferred stock, dividend rate, (as a percent)	5%	5%
Preference stocks summary
Redemption price (in dollars per share)	$ 2,500	$ 2,500
Dividends (in dollars per share)	$ 125	$ 125
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 475	$ 475
SCE | 7.50% Series M
Equity
Preferred stock, shares outstanding (in shares)	220,004	220,004
Preference stocks summary
Redemption price (in dollars per share)	$ 2,500	$ 2,500
Dividends (in dollars per share)	$ 199.479	$ 199.479
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 550	$ 550
SCE | 6.95% Series N
Equity
Preferred stock, shares outstanding (in shares)	140,004	140,004
Preferred stock, dividend rate, (as a percent)	7.50%	7.50%
Preference stocks summary
Redemption price (in dollars per share)	$ 2,500	$ 2,500
Dividends (in dollars per share)	$ 102.319	$ 102.319
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)	$ 350	$ 0
SCE | Series N Preference Stock
Preference stocks summary
Preferred stock (50,000,000 shares authorized; 1,159,317 shares of Series A and 503,454 and 532,454 shares of Series B issued and outstanding at respective dates)				$ 350

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
AOCI Attributable to Parent, Net of Tax
Beginning balance	$ 17,944	$ 17,522	$ 17,789
Changes in accumulated other comprehensive loss
Other comprehensive income, net of tax	9	2	43
Ending balance	17,740	17,944	17,522
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax
Beginning balance	(9)	(11)	(54)
Changes in accumulated other comprehensive loss
Other comprehensive income, net of tax	9	2	43
Ending balance	0	(9)	(11)
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Changes in accumulated other comprehensive loss
Other comprehensive (loss) income before reclassifications	7	(2)
Reclassified from accumulated other comprehensive loss	2	1
Accumulated Foreign Currency Adjustment Attributable to Parent
Changes in accumulated other comprehensive loss
Other comprehensive (loss) income before reclassifications	0	3
SCE
AOCI Attributable to Parent, Net of Tax
Beginning balance	21,404	20,789	19,835
Changes in accumulated other comprehensive loss
Other comprehensive income, net of tax	3	(4)	24
Ending balance	21,751	21,404	20,789
SCE | Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax
Beginning balance	(12)	(8)	(32)
Changes in accumulated other comprehensive loss
Other comprehensive income, net of tax	3	(4)	24
Ending balance	(9)	(12)	$ (8)
SCE | Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Changes in accumulated other comprehensive loss
Other comprehensive (loss) income before reclassifications	1	(5)
Reclassified from accumulated other comprehensive loss	2	1
SCE | Accumulated Foreign Currency Adjustment Attributable to Parent
Changes in accumulated other comprehensive loss
Other comprehensive (loss) income before reclassifications	$ 0	$ 0

Other Income, Net (Details)

Other Income, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Income And Expense
Total other income and (expenses), net	$ 502	$ 500	$ 348
SCE
Other Income And Expense
Equity AFUDC	187	157	137
Increase in cash surrender value of life insurance policies and life insurance benefits	42	37	42
Interest income	250	261	80
Net periodic benefit income – non-service components	91	100	136
Civic, political and related activities and donations	(63)	(42)	(42)
Other	(14)	(16)	(16)
Total other income and (expenses), net	493	497	337
Edison International Parent and Other:
Other Income And Expense
Other	9	6	10
Net (losses) gains on equity securities	$ 0	$ (3)	$ 1

Supplemental Cash Flows Infor_3

Supplemental Cash Flows Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash payments (receipts):
Interest, net of amounts capitalized	$ 1,588	$ 1,401	$ 1,001
Income taxes, net	51	0	(49)
Common Stock
Non-cash financing and investing activities:
Dividends declared but not paid	318	299	282
Preferred Stock
Non-cash financing and investing activities:
Dividends declared but not paid	0	9	8
Pollution-control Bonds Redeemed At 2.625%
Non-cash financing and investing activities:
Debt exchange	0	$ (135)	0
Interest rate on debt (as a percent)		2.625%
Pollution-control Bonds Remarketed At 4.50%
Non-cash financing and investing activities:
Debt exchange	0	$ (135)	0
Interest rate on debt (as a percent)		4.50%
SCE
Cash payments (receipts):
Interest, net of amounts capitalized	1,306	$ 1,155	864
Income taxes, net	78	0	(49)
Non-cash financing and investing activities:
Accrued capital expenditures	644	680	652
SCE | Common Stock
Non-cash financing and investing activities:
Dividends declared but not paid	430	360	350
SCE | Preferred Stock
Non-cash financing and investing activities:
Dividends declared but not paid	0	9	8
SCE | Pollution-control Bonds Redeemed At 2.625%
Non-cash financing and investing activities:
Debt exchange	0	(135)	0
SCE | Pollution-control Bonds Remarketed At 4.50%
Non-cash financing and investing activities:
Debt exchange	$ 0	$ (135)	$ 0

Related-Party Transactions (Det

Related-Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Related party transactions
Long-term insurance receivables	$ 418	$ 501
SCE
Related party transactions
Wildfire insurance expense			$ 450
Subsidiary of Common Parent | SCE
Related party transactions
Contribution expense	19
Wildfire liability insurance | Subsidiary of Common Parent | SCE
Related party transactions
Wildfire-related insurance premiums	0	0		$ 273
Insurance purchased but not reinsured			$ 93
Insurance income and related expense	44
Long-term insurance receivables	303	355
Wildfire insurance expense	$ 132	$ 213

Schedule I - Condensed Financ_2

Schedule I - Condensed Financial Information of Parent (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets:
Cash and cash equivalents	$ 193	$ 345
Other current assets	418	341
Total current assets	7,155	6,811
Other long-term assets	2,403	2,062
Total assets	85,579	81,758
Liabilities and equity:
Short-term debt	998	1,077
Current portion of long-term debt	2,049	2,697
Other current liabilities	1,439	1,538
Total current liabilities	8,439	8,598
Long-term debt (include $1,468 and $1,515 related to a VIE at respective dates)	33,534	30,316
Other long-term liabilities	3,566	3,258
Total equity	17,740	17,944	$ 17,522	$ 17,789
Total liabilities and equity	85,579	81,758
Condensed Statements of Income:
Interest income	17,599	16,338	17,220
Operating, interest and other expenses	14,669	13,711	15,737
Operating income	2,930	2,627	1,483
Income before income taxes	1,563	1,515	662
Income tax expense (benefit)	17	108	(162)
Net income	1,546	1,407	824
Preferred stock dividend requirements of Edison International	87	87	105
Net income available to Edison International common shareholders	1,284	1,197	612
Condensed Statements of Comprehensive Income
Net income	1,546	1,407	824
Other comprehensive income, net of tax	9	2	43
Comprehensive income attributable to Edison International	1,380	1,286	760
Condensed Statements of Cash Flows:
Net cash provided by operating activities	5,014	3,401	3,216
Cash flows from financing activities:
Long-term debt issued	5,256	5,121	5,971
Long-term debt repaid	(2,701)	(2,498)	(1,085)
Short-term debt issued	0	1,076	1,000
Short-term debt repaid	(401)	(2,407)	(1,543)
Common stock repurchased	(200)	0	0
Preferred and preference stock issued, net of issuance cost	345	542	0
Preferred and preference stock repurchased and redeemed	(656)	(289)	0
Commercial paper borrowing (repayments), net	308	1,102	(317)
Common stock dividends paid	(1,198)	(1,112)	(1,050)
Preferred stock dividends paid	(88)	(108)	(99)
Net cash provided by financing activities	674	1,447	2,881
Cash flows from investing activities:
Net cash used in investing activities	(5,536)	(5,233)	(5,574)
Net increase (decrease) in cash, cash equivalents and restricted cash	152	(385)	523
Cash, cash equivalents and restricted cash at beginning of year	532	917	394
Cash, cash equivalents and restricted cash at end of year	684	532	917
Commitment	4,850
Amount available	3,139
Parent Company
Assets:
Cash and cash equivalents	4	1
Other current assets	606	441
Total current assets	610	442
Investments in subsidiaries	20,630	20,026
Deferred income taxes	760	700
Other long-term assets	67	58
Total assets	22,067	21,226
Liabilities and equity:
Short-term debt	445	246
Current portion of long-term debt	800	500
Other current liabilities	639	598
Total current liabilities	1,884	1,344
Long-term debt (include $1,468 and $1,515 related to a VIE at respective dates)	4,268	4,019
Other long-term liabilities	350	362
Total equity	15,565	15,501
Total liabilities and equity	22,067	21,226
Condensed Statements of Income:
Interest income	3	2	3
Operating, interest and other expenses	342	299	209
Operating income	(339)	(297)	(206)
Equity in earnings of subsidiaries	1,610	1,498	867
Income before income taxes	1,271	1,201	661
Income tax expense (benefit)	(100)	(83)	(56)
Net income	1,371	1,284	717
Preferred stock dividend requirements of Edison International	87	87	105
Net income available to Edison International common shareholders	1,284	1,197	612
Condensed Statements of Comprehensive Income
Net income	1,371	1,284	717
Other comprehensive income, net of tax	9	2	43
Comprehensive income attributable to Edison International	1,380	1,286	760
Condensed Statements of Cash Flows:
Net cash provided by operating activities	1,097	1,148	1,133
Cash flows from financing activities:
Long-term debt issued	1,049	1,549	945
Long-term debt issuance costs	(7)	(16)	6
Long-term debt repaid	(500)	(400)	700
Short-term debt issued	0	370	1,000
Short-term debt repaid	(15)	1,356	0
Common stock issued	12	20	13
Preferred and preference stock repurchased and redeemed	(28)	289	0
Payable due to affiliates	0	(3)	(14)
Commercial paper borrowing (repayments), net	214	139	89
Payments for stock-based compensation	(24)	(5)	(8)
Receipts for stock-based compensation	206	71	72
Common stock dividends paid	(1,198)	(1,112)	(1,050)
Preferred stock dividends paid	(88)	(108)	(99)
Net cash provided by financing activities	(579)	(1,140)	242
Cash flows from investing activities:
Capital contributions to affiliate	(516)	(15)	(1,426)
Dividends from affiliate	1	4	3
Net cash used in investing activities	(515)	(11)	(1,423)
Net increase (decrease) in cash, cash equivalents and restricted cash	3	(3)	(48)
Cash, cash equivalents and restricted cash at beginning of year	1	4	52
Cash, cash equivalents and restricted cash at end of year	$ 4	$ 1	$ 4

Schedule I - Condensed Financ_3

Schedule I - Condensed Financial Information of Parent (Notes) (Details) $ / shares in Units, $ in Millions	1 Months Ended		3 Months Ended		12 Months Ended
	Dec. 31, 2023 USD ($) $ / shares shares	Nov. 30, 2023 USD ($) $ / shares shares	Jun. 30, 2024 $ / shares shares	Mar. 31, 2024 $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($)	Dec. 31, 2018 USD ($)	May 31, 2024 USD ($)
Debt and Credit Agreements
Commitment					$ 4,850
Outstanding borrowings					1,705
Amount available					3,139
Equity
Gain on shares acquired					$ 1	$ 16
Redemption amount (in dollars per share) | $ / shares					$ 1,000
Redemption amount following change in criteria (in dollars per share) | $ / shares					$ 1,020
Related Party Transactions
Other current liabilities	$ 1,538				$ 1,439	1,538
Other deferred credits and other long-term liabilities	3,258				$ 3,566	3,258
SCE
Basis of Presentation
Weighted-average equity component authorization (as a percent)					52%			45.20%
Weighted-average common equity component authorization period								37 months
Wildfire related charge incurred after tax								$ 1,800
Spot rate equity ratio								47.70%
Waiver threshold percent								47.70%
Weighted-average common equity component of total capitalization percent								48.70%
Debt and Credit Agreements
Covenant debt to total capitalization ratio					0.65
Actual debt to capitalization ratio					0.58
Related Party Transactions
Other current liabilities	1,535				$ 1,495	1,535
Other deferred credits and other long-term liabilities	$ 3,206				3,518	3,206
Multi-year credit facilities | SCE
Debt and Credit Agreements
Commitment					3,350
Outstanding borrowings					1,260
Amount available					$ 2,084
Contingent maximum available borrowing									$ 4,000
Preferred Stock
Equity
Liquidation value (in dollars per share) | $ / shares					$ 1,000
Series A Preferred Stock
Equity
Average price shares acquired (in dollars per share) | $ / shares	$ 971	$ 925
Preferred stock, shares outstanding (in shares) | shares					1,159,317
Preferred stock, dividend rate, (as a percent)					5.375%
Common stock repurchased | shares	29,186	61,497
Preferred stock current redemption amount	$ 28	$ 57				$ 28
Series B Preferred Stock
Equity
Average price shares acquired (in dollars per share) | $ / shares	$ 955	$ 904	$ 967	$ 952
Preferred stock, shares outstanding (in shares) | shares	532,454				503,454	532,454
Preferred stock, dividend rate, (as a percent)					5%
Common stock repurchased | shares	133,323	84,223	9,000	20,000
Preferred stock current redemption amount	$ 127	$ 76				$ 127
At-the-market Program (ATM)
Equity
Aggregate sale price					$ 500
Parent Company
Basis of Presentation
Cash dividends received from consolidated subsidiaries					(1,400)	1,400	$ 1,300
Related Party Transactions
Other current liabilities	598				639	598
Other deferred credits and other long-term liabilities	362				350	362
Parent Company | Related Party
Related Party Transactions
Expenses from services provided by SCE					2	2	2
Interest expense from loans due to affiliates					2	2	$ 3
Prepaid insurance	400				571	400
Other current liabilities	185				186	185
Other deferred credits and other long-term liabilities	$ 112				98	$ 112
Parent Company | 4.95% Senior Notes Due 2025
Debt and Credit Agreements
Long-term debt					$ 400
Interest rate on debt (as a percent)					4.95%
Parent Company | 4.70% Senior notes due 2025
Debt and Credit Agreements
Long-term debt					$ 400
Interest rate on debt (as a percent)					4.70%
Parent Company | 5.75% Senior Notes Due 2027
Debt and Credit Agreements
Long-term debt					$ 600
Interest rate on debt (as a percent)					5.75%
Parent Company | 4.125% Senior Notes Due 2028
Debt and Credit Agreements
Long-term debt					$ 550
Interest rate on debt (as a percent)					4.125%
Parent Company | 5.25% Senior Notes Due 2028
Debt and Credit Agreements
Long-term debt					$ 600
Interest rate on debt (as a percent)					5.25%
Parent Company | 6.95% senior notes due in 2029
Debt and Credit Agreements
Long-term debt					$ 550
Interest rate on debt (as a percent)					6.95%
Parent Company | 5.45% Senior note due 2029
Debt and Credit Agreements
Long-term debt					$ 500
Interest rate on debt (as a percent)					5.45%
Parent Company | 5.25% Senior Notes Due 2032
Debt and Credit Agreements
Long-term debt					$ 550
Interest rate on debt (as a percent)					5.25%
Parent Company | 8.125% Junior Subordinated Notes Due 2053
Debt and Credit Agreements
Long-term debt					$ 500
Interest rate on debt (as a percent)					8.125%
Parent Company | 7.875% junior subordinated notes due 2054
Debt and Credit Agreements
Long-term debt					$ 450
Interest rate on debt (as a percent)					7.875%