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Debt and Credit Agreements (Long-term Debt) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Instrument [Line Items] |  |
Current portion of long-term debt | $ (2,614) | $ (1,077)
Long-term debt | 27,025 | 24,170
Edison International Parent and Other |  |
Debt Instrument [Line Items] |  |
Current portion of long-term debt | (400) | (700)
Unamortized debt discount/premium and issuance costs, net | (19) | (13)
Long-term debt | 2,981 | 2,437
Edison International Parent and Other | Debentures and notes |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 3,400 | 3,150
Edison International Parent and Other | Debentures and notes | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 2.95% |
Edison International Parent and Other | Debentures and notes | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 6.95% |
SCE |  |
Debt Instrument [Line Items] |  |
Current portion of long-term debt | $ (2,214) | (377)
Unamortized debt discount/premium and issuance costs, net | (149) | (113)
Long-term debt | 24,044 | 21,733
SCE | Debentures and notes |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 306 | 306
SCE | Debentures and notes | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 5.06% |
SCE | Debentures and notes | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 6.65% |
SCE | First and refunding mortgage bonds |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 23,900 | 20,314
SCE | First and refunding mortgage bonds | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 0.70% |
SCE | First and refunding mortgage bonds | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 6.05% |
SCE | Pollution-control bonds |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 752 | 752
SCE | Pollution-control bonds | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 1.45% |
SCE | Pollution-control bonds | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 2.63% |
SCE | Series 2021-A senior secured recovery bonds |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 849 | 333
SCE | Series 2021-A senior secured recovery bonds | Minimum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 0.86% |
SCE | Series 2021-A senior secured recovery bonds | Maximum |  |
Debt Instrument [Line Items] |  |
Interest rate on debt (as a percent) | 3.24% |
SCE | Other long-term debt |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 600 | $ 518

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: 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 Reference 3: 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 4: 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 + Details
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