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Basis of Presentation (Details) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2021 mi² shares retail_customers
Basis of Presentation [Abstract] |  |
Service Area Sq Miles | mi² |  | 4,000,000
Incorporated Cities |  | 51
Number of Retail Customers | retail_customers |  | 917,000
Service area population |  | 1,900,000
Entity Number of Employees |  | 2,839
Number of Union Employees |  | 678
Number of Union Employees Subject to Agreement A |  | 614
Number of Union Employees Subject to Agreement B |  | 64
UtilityOperatingExpenseOtherReclasedFromOtherNonCashIncomeAndExpenseforWildfireCosts | $ | $ 1 |
UtilityOperatingExpenseOtherReclassedFromOtherNetForWildfileCosts | $ | $ 14 |

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- Definition Number of persons employed by the Entity + References No definition available. + Details
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- Definition Number of incorporated cities in service area. + References No definition available. + Details
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- Definition Includes residential, commercial and industrial. + References No definition available. + Details
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- Definition Number of employees subject to collective bargaining agreement A. + References No definition available. + Details
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- Definition Service Area Population + References No definition available. + Details
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- Definition Approximate square miles of service area. + References No definition available. + Details
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