XML 140 R96.htm IDEA: XBRL DOCUMENT v3.20.4
Property, Plant and Equipment, Net (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, net $ 86,128 $ 73,305 $ 68,087
Regulated Operation [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 103,397 89,292  
Accumulated depreciation and amortization (30,662) (26,353)  
Property, plant and equipment in service, net 72,735 62,939  
Construction work-in-progress 3,200 3,600  
Regulated Operation [Member] | Utility generation, distribution and transmission system [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 86,730 81,127  
Regulated Operation [Member] | Utility generation, distribution and transmission system [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life 5 years    
Regulated Operation [Member] | Utility generation, distribution and transmission system [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life 80 years    
Regulated Operation [Member] | Interstate natural gas pipeline assets [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 16,667 8,165  
Regulated Operation [Member] | Interstate natural gas pipeline assets [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life 3 years    
Regulated Operation [Member] | Interstate natural gas pipeline assets [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life 80 years    
Nonregulated Operation [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 12,671 8,817  
Accumulated depreciation and amortization (2,586) (2,183)  
Property, plant and equipment in service, net 10,085 6,634  
Nonregulated Operation [Member] | Independent power plants [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 7,012 6,983  
Nonregulated Operation [Member] | Other assets [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 5,659 1,834  
Common Facilities [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment in service, net 82,820 69,573  
Construction work-in-progress 3,308 3,732  
Property, plant and equipment, net $ 86,128 73,305  
Nonregulated Operation [Member] | Independent power plants [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life 5 years    
Nonregulated Operation [Member] | Independent power plants [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life 30 years    
Nonregulated Operation [Member] | Other assets [Member] | Minimum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life 3 years    
Nonregulated Operation [Member] | Other assets [Member] | Maximum [Member]      
Property, Plant and Equipment [Line Items]      
Depreciable life 40 years    
PacifiCorp [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, net $ 22,430 20,973 19,570
MidAmerican Funding [Member]      
Property, Plant and Equipment [Line Items]      
Property, plant and equipment, net $ 19,279 $ 18,377 $ 16,169