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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 |  |

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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
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- Definition Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-6A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479016/842-30-45-3 + Details
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