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Leases (Summary of Other Information) (Details) - Southern California Edison - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019
Cash paid for amounts included in the measurement of lease liabilities: |  |
PPA Finance leases, Weighted average remaining lease term (in years) | 10 years 10 months 24 days | 11 years 8 months 15 days
PPA Finance leases, Weighted average discount rate | 8.83% | 8.74%
PPA leases |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | $ 74 | $ 98
Other operating leases | $ 463 | $ 0
Weighted average remaining lease term (in years) | 9 years 9 months 29 days | 16 years 10 days
Weighted average discount rate | 3.08% | 4.44%
Other leases |  |
Cash paid for amounts included in the measurement of lease liabilities: |  |
Operating cash flows from operating leases | $ 33 | $ 34
Other operating leases | $ 42 | $ 23
Weighted average remaining lease term (in years) | 12 years 4 months 6 days | 12 years 9 months
Weighted average discount rate | 3.74% | 3.89%

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- Definition Weighted average remaining lease term for finance 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/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=121568110&loc=SL77918982-209971 + Details
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- Definition Discount rate used by lessee to determine present value of finance lease payments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918673-209980 + Details
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