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Property, Plant and Equipment, Net - EEGH (Details)
$ in Millions
1 Months Ended 6 Months Ended
Jun. 30, 2023
USD ($)
a
Jun. 30, 2023
USD ($)
a
Jun. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
EEGH        
Property, Plant and Equipment [Line Items]        
Plant, net $ 10,076 $ 10,076   $ 10,001
Construction work-in-progress 233 233   201
Property, plant and equipment, net 10,309 10,309   10,202
Proceeds from assignment of shale development rights   8 $ 0  
EGTS        
Property, Plant and Equipment [Line Items]        
Plant in service, net 6,970 6,970   6,803
Accumulated depreciation and amortization (2,498) (2,498)   (2,440)
Plant, net 4,472 4,472   4,363
Construction work-in-progress 183 183   141
Property, plant and equipment, net $ 4,655 $ 4,655   4,504
Oil and gas, developed acreage | a 6,500 6,500    
Proceeds from assignment of shale development rights $ 8 $ 8 $ 0  
Shale development rights gain 8      
Shale development rights, gain after-tax 6      
Regulated | EEGH        
Property, Plant and Equipment [Line Items]        
Plant in service, net 9,248 9,248   9,035
Accumulated depreciation and amortization (3,118) (3,118)   (3,039)
Plant, net 6,130 6,130   5,996
Construction work-in-progress 218 218   181
Nonregulated | EEGH        
Property, Plant and Equipment [Line Items]        
Plant in service, net 4,551 4,551   4,547
Accumulated depreciation and amortization (605) (605)   (542)
Plant, net 3,946 3,946   4,005
Interstate natural gas transmission and storage assets | EGTS        
Property, Plant and Equipment [Line Items]        
Plant in service, net $ 6,890 $ 6,890   6,724
Interstate natural gas transmission and storage assets | EGTS | Minimum        
Property, Plant and Equipment [Line Items]        
Depreciable life 28 years 28 years    
Interstate natural gas transmission and storage assets | EGTS | Maximum        
Property, Plant and Equipment [Line Items]        
Depreciable life 50 years 50 years    
Interstate natural gas transmission and storage assets | Regulated | EEGH        
Property, Plant and Equipment [Line Items]        
Plant in service, net $ 9,132 $ 9,132   8,922
Interstate natural gas transmission and storage assets | Regulated | EEGH | Minimum        
Property, Plant and Equipment [Line Items]        
Depreciable life 21 years 21 years    
Interstate natural gas transmission and storage assets | Regulated | EEGH | Maximum        
Property, Plant and Equipment [Line Items]        
Depreciable life 51 years 51 years    
Intangible plant | EGTS        
Property, Plant and Equipment [Line Items]        
Plant in service, net $ 80 $ 80   79
Intangible plant | EGTS | Minimum        
Property, Plant and Equipment [Line Items]        
Depreciable life 12 years 12 years    
Intangible plant | EGTS | Maximum        
Property, Plant and Equipment [Line Items]        
Depreciable life 19 years 19 years    
Intangible plant | Regulated | EEGH        
Property, Plant and Equipment [Line Items]        
Plant in service, net $ 116 $ 116   113
Intangible plant | Regulated | EEGH | Minimum        
Property, Plant and Equipment [Line Items]        
Depreciable life 5 years 5 years    
Intangible plant | Regulated | EEGH | Maximum        
Property, Plant and Equipment [Line Items]        
Depreciable life 17 years 17 years    
Intangible plant | Nonregulated | EEGH        
Property, Plant and Equipment [Line Items]        
Depreciable life 14 years 14 years    
Plant in service, net $ 25 $ 25   25
LNG facility | Nonregulated | EEGH        
Property, Plant and Equipment [Line Items]        
Depreciable life 40 years 40 years    
Plant in service, net $ 4,526 $ 4,526   $ 4,522