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Debt and Credit Agreements (Credit Facilities) (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Line of Credit Facility [Line Items] |  |
Commitment | $ 4,850 |
Outstanding borrowings | 285 |
Outstanding letters of credit | 431 |
Amount available | $ 4,134 |
Edison International Parent and Other |  |
Line of Credit Facility [Line Items] |  |
Covenant debt to total capitalization ratio | 0.70 |
Actual debt to capitalization ratio | 0.64 |
Edison International Parent and Other | Multi-year credit facilities |  |
Line of Credit Facility [Line Items] |  |
Commitment | $ 1,500 |
Outstanding borrowings | 90 |
Amount available | 1,410 |
Contingent maximum available borrowing | $ 2,000 |
Edison International Parent and Other | Multi-year credit facilities | SOFR |  |
Line of Credit Facility [Line Items] |  |
Basis points | 1.28% |
Edison International Parent and Other | Multi-year credit facilities | Commercial paper |  |
Line of Credit Facility [Line Items] |  |
Outstanding borrowings | $ 90 | $ 0
Weighted average interest rate (as a percent) | 4.92% |
SCE |  |
Line of Credit Facility [Line Items] |  |
Covenant debt to total capitalization ratio | 0.65 |
Actual debt to capitalization ratio | 0.56 |
SCE | Multi-year credit facilities |  |
Line of Credit Facility [Line Items] |  |
Commitment | $ 3,350 |
Outstanding borrowings | 195 |
Outstanding letters of credit | 431 |
Amount available | 2,724 |
Contingent maximum available borrowing | $ 4,000 |
SCE | Multi-year credit facilities | SOFR |  |
Line of Credit Facility [Line Items] |  |
Basis points | 1.08% |
SCE | Multi-year credit facilities | Commercial paper |  |
Line of Credit Facility [Line Items] |  |
Outstanding borrowings | $ 195 | $ 601
Weighted average interest rate (as a percent) | 5.20% | 0.45%
SCE | Other long-term debt | SOFR |  |
Line of Credit Facility [Line Items] |  |
Basis points | 0.90% |

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- Definition The aggregate borrowing capacity under the credit facility, consisting of the maximum borrowing capacity plus the contingent increase, if any one or more of the existing banks or new banks agree to provide such increased commitment amount. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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