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Leases (Tables) | 12 Months Ended
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Dec. 31, 2023
Leases |
Summary of Finance Lease Payments | The following table summarizes SCE's future lease payments for operating leases as of December 31, 2023:
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | PPA Operating | ​ | Other Operating
(in millions) |  | Leases1 |  | Leases2
2024 | ​ | $ | 111 | ​ | $ | 55
2025 | ​ |  | 99 | ​ |  | 50
2026 | ​ |  | 89 | ​ |  | 46
2027 | ​ |  | 84 | ​ |  | 41
2028 | ​ |  | 84 | ​ |  | 36
Thereafter | ​ |  | 782 | ​ |  | 111
Total lease payments | ​ |  | 1,249 | ​ |  | 339
Amount representing interest | ​ |  | 302 | ​ |  | 72
Lease liabilities | ​ | $ | 947 | ​ | $ | 267
1 | Excludes expected purchases from most renewable energy contracts, which do not meet the definition of a lease payment since renewable power generation is contingent on external factors.
2 | 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.
Summary of Lease Expense Components | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Years ended December 31,
(in millions) |  | 2023 |  | 2022 | ​ | ​ | 2021
PPA leases: |  | ​ |  |  | ​ |  |  | ​ |
Operating lease cost | ​ | $ | 503 | ​ | $ | 580 | ​ | $ | 305
Variable lease cost1 | ​ | ​ | 2,277 | ​ | ​ | 2,661 | ​ | ​ | 2,098
Short term lease cost | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 539
Total PPA lease cost | ​ |  | 2,780 | ​ |  | 3,241 | ​ |  | 2,942
Other operating leases cost | ​ | ​ | 56 | ​ | ​ | 52 | ​ | ​ | 47
Total lease cost | ​ | $ | 2,836 | ​ | $ | 3,293 | ​ | $ | 2,989
1 | Includes lease costs from 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) |  | 2023 |  |  | 2022 |  | ​ | 2021 |
Cash paid for amounts included in the measurement of lease liabilities: |  | ​ |  | ​ |  | ​ |  | ​ | ​ | ​ |  | ​
Operating cash flows from: |  | ​ |  | ​ |  | ​ |  | ​ | ​ | ​ |  | ​
PPA operating leases | ​ | $ | 503 | ​ | ​ | $ | 580 | ​ | ​ | $ | 305 | ​
Other operating leases | ​ |  | 55 | ​ | ​ |  | 50 | ​ | ​ |  | 45 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
ROU assets obtained in exchange for lease obligations: | ​ |  |  | ​ | ​ |  |  | ​ | ​ |  |  | ​
PPA operating leases | ​ | $ | 226 | ​ | ​ | $ | 20 | ​ | ​ | $ | 1,084 | ​
Other operating leases | ​ |  | 69 | ​ | ​ |  | 76 | ​ | ​ |  | 71 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average remaining lease term (in years): | ​ |  |  | ​ | ​ |  |  | ​ | ​ |  |  | ​
PPA operating leases | ​ |  | 13.37 | ​ | ​ |  | 9.42 | ​ | ​ |  | 8.16 | ​
Other operating leases | ​ |  | 9.56 | ​ | ​ |  | 10.38 | ​ | ​ |  | 11.14 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average discount rate: | ​ |  |  | ​ | ​ |  |  | ​ | ​ |  |  | ​
PPA operating leases | ​ |  | 4.30 | % | ​ |  | 2.95 | % | ​ |  | 2.43 | %
Other operating leases | ​ |  | 4.22 | % | ​ |  | 3.78 | % | ​ |  | 3.34 | %
Schedule of Undiscounted Cash Flow Expected from Lease Payments | ​
​ | ​ | ​ | ​
(in millions) |  |  | ​
2024 | ​ | $ | 13
2025 | ​ |  | 12
2026 | ​ |  | 8
2027 | ​ |  | 8
2028 | ​ |  | 7
Thereafter | ​ |  | 124
Total | ​ | $ | 172
​

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- Definition Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-4 + Details
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- Definition Tabular disclosure of maturity of undiscounted cash flows to be received by lessor on annual basis for operating lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479773/842-30-50-12 + Details
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