The maximum amount of annual shareholder contribution to wildfire insurance program.

No definition available.

Name:	eix_MaximumAnnualContributionToSelfInsuranceProgram
Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Threshold for wildfire insurance costs before shareholder contributions.

+ References

No definition available.

+ Details

Name:	eix_PaymentOfSelfInsuranceCost
Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of shareholder contribution on self insurance cost.

+ References

No definition available.

+ Details

Name:	eix_PercentageOfShareholderContributionOnSelfInsuranceCost
Namespace Prefix:	eix_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Proceeds from Insurance Premiums Collected, Additional Amount Authorized For Collection

+ References

No definition available.

+ Details

Name:	eix_ProceedsFromInsurancePremiumsCollectedAdditionalAmountAuthorizedForCollection
Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The future amount to be collected from self insurance program in the absence of wildfire related claims.

+ References

No definition available.

+ Details

Name:	eix_ProceedsFromSelfInsuranceProgramExcludingWildfireRelatedClaims
Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Current or expected self insurance per wildfire occurrence.

+ References

No definition available.

+ Details

Name:	eix_SelfInsuranceRetentionPerWildfireOccurrence
Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Maximum current or expected wildfire insurance coverage.

+ References

No definition available.

+ Details

Name:	eix_WildfireInsuranceCoverage
Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Current or expected wildfire insurance coverage, net.

+ References

No definition available.

+ Details

Name:	eix_WildfireInsuranceCoverageNet
Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Wildfire Insurance Expense

+ References

No definition available.

+ Details

Name:	eix_WildfireInsuranceExpense
Namespace Prefix:	eix_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount recovered from insurance. These recoveries reduce costs and losses that are reported as a separate line item under operating expenses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(3))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2

+ Details

Name:	us-gaap_InsuranceRecoveries
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 275
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482861/275-10-50-9

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 720
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483359/720-20-50-1

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 27
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482395/460-10-55-27

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-9

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-4

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482425/460-10-50-3

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483076/450-20-50-1

+ Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Cash received as payments for insurance premiums during the current period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 25
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-25

+ Details

Name:	us-gaap_ProceedsFromInsurancePremiumsCollected
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=eix_SouthernCaliforniaEdisonCompanyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=eix_WildfireLiabilityInsuranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_SubsidiaryOfCommonParentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=eix_CommercialInsuranceCarriersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=eix_A20172018WildfireMudslideEventsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=eix_November2018WoolseyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=eix_AggregateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=eix_CreekFireMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=eix_InsuranceCoverageThroughJune2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=eix_InsuranceCoverageThroughJune2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_StatementScenarioAxis=eix_CustomerFundedSelfInsuranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Commitments and Contingencies - Recoveries (Details) - SCE - USD ($) $ in Millions	1 Months Ended		3 Months Ended	6 Months Ended		12 Months Ended					13 Months Ended
	Feb. 28, 2025	Jul. 31, 2024	Mar. 31, 2025	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Commitments and Contingencies
Insurance and other third party recoveries				$ 82.0	$ 56.0
Wildfire insurance expense	$ 50.0		$ 50.0					$ 450.0
Wildfire Liability Insurance \| Subsidiary of Common Parent
Commitments and Contingencies
Proceeds from self-insurance program				148.0		$ 300.0	$ 150.0
Proceeds from self-insurance program, additional amount authorized for collection				152.0
Commercial insurance carriers
Commitments and Contingencies
Wildfire insurance expense								357.0
2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Wildfire insurance coverage				1,000.0
Self insurance				10.0
Insurance and other third party recoveries				0.0	$ 0.0
November 2018-Woolsey
Commitments and Contingencies
Wildfire insurance coverage				1,000.0
Self insurance				10.0
Aggregate \| 2017/2018 Wildfire/Mudslide Events
Commitments and Contingencies
Insurance and other third party recoveries				2,000.0
Aggregate \| 2017 Creek Fire
Commitments and Contingencies
Insurance and other third party recoveries				$ 18.0
Insurance Coverage Through June 2022
Commitments and Contingencies
Wildfire insurance coverage								1,000.0	$ 1,000.0	$ 1,000.0	$ 1,200.0
Self insurance								63.0	163.0	130.0	165.0
Insurance coverage through June 2023
Commitments and Contingencies
Coverage net								$ 937.0	$ 837.0	$ 870.0	$ 1,000.0
Customer-funded self-insurance
Commitments and Contingencies
Wildfire insurance coverage		$ 1,000.0
Rate funded wildfire self-insurance program future proceeds, assuming no claims		$ 300.0
Shareholder contribution on self insurance (as a percent)		2.50%
Threshold before shareholder contributions		$ 500.0
Maximum annual shareholder contribution		$ 12.5