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Balance Sheet Components Balance Sheet Components Public Utility Property, Plant, and Equipment (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Property, Plant and Equipment [Line Items]    
Public Utilities, Property, Plant and Equipment, Generation or Processing $ 5,510 $ 4,953
Public Utilities, Property, Plant and Equipment, Transmission 1,420 1,144
Public Utilities, Property, Plant and Equipment, Distribution 5,714 5,249
Public Utilities, Property, Plant and Equipment, General   1,014
Public Utilities, Property, Plant and Equipment, Intangible 972 933
Public Utilities, Property, Plant and Equipment, Plant in Service 14,863 13,329
Public Utilities, Property, Plant and Equipment, Accumulated Depreciation 5,085 4,757
In service, net 9,778 8,572
Construction work-in-progress 567 974
Public Utilities, Property, Plant and Equipment, Net 10,345 9,546
Public Utilities, Property, Plant and Equipment, Common 1,025  
Public Utilities, Property, Plant and Equipment, Other Property, Plant and Equipment $ 222 36
ClearwaterWind    
Property, Plant and Equipment [Line Items]    
Construction work-in-progress   $ 411