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Leases (Balance Sheet) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating leases: |  |  |
Operating lease right-of-use assets | $ 1,932 | $ 1,088 |
Current portion of operating lease liabilities | 582 | 215 |
Operating lease liabilities | $ 1,350 | $ 873 |
Finance leases included in: |  |  |
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List] | Public Utilities, Property, Plant and Equipment, Net | Public Utilities, Property, Plant and Equipment, Net |
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent |
SCE |  |  |
Operating leases: |  |  |
Operating lease right-of-use assets | $ 1,925 | $ 1,085 |
Current portion of operating lease liabilities | 582 | 214 |
Operating lease liabilities | 1,343 | 871 |
Total operating lease liabilities | 1,925 | 1,085 |
Finance leases included in: |  |  |
Utility property, plant and equipment, gross | 4 | 4 |
Accumulated depreciation | (1) |  |
Utility property, plant and equipment, net | 3 | 4 |
Other long-term liabilities | 3 | 4 |
Total finance lease liabilities | 3 | 4 |
SCE | PPA Operating Leases |  |  |
Operating leases: |  |  |
Total operating lease liabilities | 1,713 |  |
Finance leases included in: |  |  |
Operating ROU assets obtained in exchange for lease obligations | 1,084 | 463 |
SCE | Other operating leases |  |  |
Operating leases: |  |  |
Total operating lease liabilities | 212 |  |
Finance leases included in: |  |  |
Operating ROU assets obtained in exchange for lease obligations | $ 71 | $ 58 | $ 34

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