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Compensation and Benefit Plans (Pension Assets Fair Value) (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Domestic mortgage backed securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage |  | 20.00% |
Pension Plans |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 3,545 | $ 4,323 |
Receivables and payables, net | (83) | (27) |
Net plan assets available for benefits | $ 3,462 | $ 4,296 | $ 4,171
Publicly traded equity investments located in the US (percent) | 61.00% | 62.00% |
Pension Plans | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 728 | $ 748 |
Pension Plans | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 1,317 | 1,782 |
Pension Plans | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 1,500 | 1,793 |
Pension Plans | Government and agency securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 574 | 1,135 |
Pension Plans | Government and agency securities | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 281 | 217 |
Pension Plans | Government and agency securities | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 293 | 918 |
Pension Plans | Government and agency securities | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Corporate stocks |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 230 | $ 470 |
Pension Plans | Corporate stocks | Russell Indexes |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 36.00% | 44.00% |
Pension Plans | Corporate stocks | MSCI |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 64.00% | 56.00% |
Pension Plans | Corporate stocks | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 227 | $ 466 |
Pension Plans | Corporate stocks | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 3 | 4 |
Pension Plans | Corporate stocks | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Corporate bonds |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 973 | 815 |
Pension Plans | Corporate bonds | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 0 |  |
Actual plan asset allocations, percentage | 56.00% |  |
Pension Plans | Corporate bonds | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 973 | 815 |
Pension Plans | Corporate bonds | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Collateralized mortgage obligations and other asset backed securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 67 | 61 |
Pension Plans | Common/collective funds |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 658 | $ 964 |
Pension Plans | Common/collective funds | Standard and Poor's 500 |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 41.00% | 41.00% |
Pension Plans | Common/collective funds | Russell 1000 Index |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage |  | 10.00% |
Pension Plans | Common/collective funds | MSCI all country world index exUS |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 46.00% | 38.00% |
Pension Plans | Common/collective funds | Non-index U.S. equity fund |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 11.00% | 9.00% |
Pension Plans | Common/collective funds | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 0 |  |
Pension Plans | Common/collective funds | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Common/collective funds | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 658 | $ 964 |
Pension Plans | Partnerships/joint ventures |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 613 | 688 |
Actual plan asset allocations, percentage | 18.00% |  |
Pension Plans | Partnerships/joint ventures | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 0 |  |
Pension Plans | Partnerships/joint ventures | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Partnerships/joint ventures | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 613 | 688 |
Pension Plans | Other investment entities |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 63 | 110 |
Pension Plans | Other investment entities | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Other investment entities | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Other investment entities | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 63 | 110 |
Pension Plans | Registered investment companies |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 365 | 88 |
Pension Plans | Registered investment companies | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 206 | $ 57 |
Actual plan asset allocations, percentage |  | 63.00% |
Pension Plans | Registered investment companies | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Registered investment companies | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 159 | $ 31 |
Pension Plans | Interest-bearing cash |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 14 | 8 |
Pension Plans | Interest-bearing cash | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 14 | 8 |
Pension Plans | Interest-bearing cash | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Interest-bearing cash | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Other investments |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 55 | 45 |
Pension Plans | Other investments | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 0 |  |
Pension Plans | Other investments | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | 48 | $ 45 |
Pension Plans | Other investments | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Fair value of plan assets | $ 7 |  |
Pension Plans | Private equity and venture capital funds including branded consumer products, clean and information technology and healthcare |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 76.00% | 62.00% |
Pension Plans | Asset backed securities including distressed mortgages |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage |  | 17.00% |
Pension Plans | Publicly traded fixed income securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage |  | 15.00% |
Pension Plans | Broad range of financial assets in all global markets |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 2.00% | 3.00% |
Pension Plans | Emerging market equity securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage |  | 71.00% |
Pension Plans | Domestic mortgage backed securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 64.00% |  |
Pension Plans | High yield debt securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 36.00% |  |
Pension Plans | Equity Funds |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 22.00% |  |
Pension Plans | Fixed Income Funds |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 21.00% | 35.00% |
SCE | Pension Plans |  |  |
Pension and Other Postretirement Benefits |  |  |
Net plan assets available for benefits | $ 3,275 | $ 4,061 | $ 3,940

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