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Leases (Tables)
 12 Months Ended
Dec. 31, 2020
Leases [Abstract]  
Summary of Finance Lease Payments
The following table summarizes SCE's lease payments for operating and finance leases as of December 31, 2020:
(in millions)
PPA Operating Leases1
Other Operating Leases2
PPA Finance Leases1
2021$204 $39 $1 
2022208 32 1 
2023159 26 1 
202447 21 — 
202547 18 — 
Thereafter443 104 5 
Total lease payments1,108 240 8 
Amount representing interest3
203 60 4 
Lease liabilities$905 $180 $4 
1Excludes 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.
2Excludes 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.
3Lease payments are discounted to their present value using SCE's incremental borrowing rates.
Summary of Operating Lease Payments
The following table summarizes SCE's lease payments for operating and finance leases as of December 31, 2020:
(in millions)
PPA Operating Leases1
Other Operating Leases2
PPA Finance Leases1
2021$204 $39 $1 
2022208 32 1 
2023159 26 1 
202447 21 — 
202547 18 — 
Thereafter443 104 5 
Total lease payments1,108 240 8 
Amount representing interest3
203 60 4 
Lease liabilities$905 $180 $4 
1Excludes 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.
2Excludes 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.
3Lease payments are discounted to their present value using SCE's incremental borrowing rates.
Supplemental Balance Sheet Information
Supplemental balance sheet information related to SCE's leases was as follows:
(in millions)December 31, 2020December 31, 2019
Operating leases:
Operating lease ROU assets1
$1,085 $689 
Current portion of operating lease liabilities214 79 
Operating lease liabilities871 610 
Total operating lease liabilities1
$1,085 $689 
Finance leases included in:
Utility property, plant and equipment, gross$4 $14 
Accumulated depreciation— (5)
Utility property, plant and equipment, net4 9 
Other current liabilities— 1 
Other long-term liabilities4 8 
Total finance lease liabilities$4 $9 
1During the year ended 2020, a PPA operating lease commenced and one PPA was amended resulting in a total of $463 million additions in ROU assets and lease liabilities.
Summary of Lease Expense Components The following table summarizes the components of SCE's lease expense:
(in millions)Year ended December 31, 2020Year ended December 31, 2019
PPA leases:
Operating lease cost$111 $118 
Finance lease cost1 1 
Variable lease cost1
1,917 2,087 
Total PPA lease cost2,029 2,206 
Other operating leases cost47 46 
Total lease cost$2,076 $2,252 
1Includes 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:
(in millions, except lease term and discount rate)Year ended December 31, 2020Year ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases
PPA leases$111 $118 
Other leases44 44 
Financing cash flows from PPA finance leases1 1 
ROU assets obtained in exchange for lease obligations:
PPA operating leases$463 — 
Other operating leases58 34 
Weighted average remaining lease term (in years):
Operating leases
PPA leases9.7516.05
Other leases12.1312.73
PPA Finance leases16.6711.51
Weighted average discount rate:
Operating leases
PPA leases3.12 %4.46 %
Other leases3.63 %3.88 %
PPA Finance leases11.29 %8.76 %
Schedule of Undiscounted Cash Flow Expected from Lease Payments At December 31, 2020, the undiscounted cash flow expected to be received from lease payments for the remaining years is as follows:
(in millions)
2021$11 
202210 
20238 
20247 
20256 
Thereafter128 
Total$170