Property, Plant and Equipment, Net - EEGH (Details) - EEGH - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Public Utility, Property, Plant and Equipment [Line Items]
Plant, net	$ 9,961	$ 9,934
Construction work- in-progress	239	210
Property, plant and equipment, net	10,200	10,144
Regulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service	8,785	8,497
Accumulated depreciation and amortization	(2,901)	(2,759)
Plant, net	5,884	5,738
Construction work- in-progress	209	196
Nonregulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service	4,500	4,479
Accumulated depreciation and amortization	(423)	(283)
Plant, net	4,077	4,196
Interstate natural gas pipeline assets | Regulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service	$ 8,675	8,382
Interstate natural gas pipeline assets | Regulated assets | Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life	21 years
Interstate natural gas pipeline assets | Regulated assets | Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life	44 years
Intangible plant | Regulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Utility plant in-service	$ 110	115
Intangible plant | Regulated assets | Minimum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life	5 years
Intangible plant | Regulated assets | Maximum
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life	10 years
Intangible plant | Nonregulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life	14 years
Utility plant in-service	$ 25	25
LNG facility | Nonregulated assets
Public Utility, Property, Plant and Equipment [Line Items]
Depreciable life	40 years
Utility plant in-service	$ 4,475	$ 4,454