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v3.20.4

Income Taxes (Components of Net Accumulated Deferred Income Tax Liability) (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2017
Deferred tax assets: |  |  |  |
Property | $ 590 |  | $ 478 |
Wildfire reserve | 1,134 |  | 847 |
Nuclear decommissioning trust assets in excess of nuclear ARO liability | 515 |  | 449 |
Loss and credit carryforwards | 1,991 |  | 1,515 |
Regulatory asset | 841 |  | 739 |
Pension and postretirement benefits other than pensions, net | 163 |  | 170 |
Other | 513 |  | 408 |
Sub-total | 5,747 |  | 4,606 |
Less: valuation allowance | 35 |  | 35 |
Total | 5,712 |  | 4,571 |
Deferred tax liabilities: |  |  |  |
Property | 8,879 |  | 8,244 |
Regulatory liability | 1,111 |  | 570 |
Nuclear decommissioning trust assets | 515 |  | 449 |
Other | 514 |  | 320 |
Total | 11,019 |  | 9,583 |
Accumulated deferred income tax liability, net | 5,307 |  | 5,012 |
Unrecognized tax benefits | 679 | $ 338 | 370 | $ 432
Recorded valuation allowance | 31 |  |  |
Capital loss from sale of SoCore Energy |  |  |  |
Deferred tax liabilities: |  |  |  |
Recorded valuation allowance | 4 | 4 |  |
Loss and Credit Carryforwards |  |  |  |
Deferred tax liabilities: |  |  |  |
Unrecognized tax benefits | 270 |  |  |
SCE |  |  |  |
Deferred tax assets: |  |  |  |
Property | 540 |  | 435 |
Wildfire reserve | 1,134 |  | 847 |
Nuclear decommissioning trust assets in excess of nuclear ARO liability | 515 |  | 449 |
Loss and credit carryforwards | 683 |  | 253 |
Regulatory asset | 841 |  | 739 |
Pension and postretirement benefits other than pensions, net | 35 |  | 40 |
Other | 527 |  | 416 |
Sub-total | 4,275 |  | 3,179 |
Less: valuation allowance | 0 |  | 0 |
Total | 4,275 |  | 3,179 |
Deferred tax liabilities: |  |  |  |
Property | 8,871 |  | 8,234 |
Regulatory liability | 1,111 |  | 570 |
Nuclear decommissioning trust assets | 515 |  | 449 |
Other | 499 |  | 310 |
Total | 10,996 |  | 9,563 |
Accumulated deferred income tax liability, net | 6,721 |  | 6,384 |
Unrecognized tax benefits | 320 | $ 249 | $ 282 | $ 331
SCE | Loss and Credit Carryforwards |  |  |  |
Deferred tax liabilities: |  |  |  |
Unrecognized tax benefits | $ 190 |  |  |

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