Property, Plant and Equipment, Net - EEGH (Details) $ in Millions	1 Months Ended	12 Months Ended
	Jun. 30, 2023 USD ($) a	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
EEGH
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service, net, excluding construction work-in-process		$ 10,112	$ 10,001
Construction work- in-progress		231	201
Property, plant and equipment, net		10,343	10,202
Proceeds from assignment of shale development rights		8	0	$ 0
EEGH | Regulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service		9,435	9,035
Accumulated depreciation and amortization		(3,201)	(3,039)
Utility plant in-service, net, excluding construction work-in-process		6,234	5,996
Construction work- in-progress		223	181
EEGH | Nonregulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Accumulated depreciation and amortization		(655)	(542)
Utility plant in-service, net, excluding construction work-in-process		3,878	4,005
EEGH | Interstate natural gas transmission and storage assets | Regulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service		$ 9,318	8,922
EEGH | Interstate natural gas transmission and storage assets | Regulated assets | Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		23 years
EEGH | Interstate natural gas transmission and storage assets | Regulated assets | Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		49 years
EEGH | Intangible plant | Regulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service		$ 117	113
EEGH | Intangible plant | Regulated assets | Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		5 years
EEGH | Intangible plant | Regulated assets | Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		18 years
EEGH | LNG facility | Nonregulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		40 years
Utility plant in-service		$ 4,533	4,547
EGTS
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service		7,126	6,803
Accumulated depreciation and amortization		(2,563)	(2,440)
Utility plant in-service, net, excluding construction work-in-process		4,563	4,363
Construction work- in-progress		152	141
Property, plant and equipment, net		4,715	4,504
Oil and gas, developed acreage | a	6,500,000
Proceeds from assignment of shale development rights	$ 8	8	0	$ 0
Shale development rights gain	8
Shale development rights, gain after-tax	$ 6
EGTS | Interstate natural gas transmission and storage assets
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service		$ 7,046	6,724
EGTS | Interstate natural gas transmission and storage assets | Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		28 years
EGTS | Interstate natural gas transmission and storage assets | Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		50 years
EGTS | Intangible plant
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service		$ 80	$ 79
EGTS | Intangible plant | Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		12 years
EGTS | Intangible plant | Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life		20 years