Supplemental Cash Flow Disclosures - EEGH (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Condensed Cash Flow Statements, Captions [Line Items]
Interest paid, net of amounts capitalized	$ 2,071	$ 2,041	$ 1,855
Income taxes (received) paid, net	(1,863)	(1,309)	(1,361)
Supplemental disclosure of non-cash investing and financing transactions:
Accruals related to property, plant and equipment additions	1,049	834	801
EEGH
Condensed Cash Flow Statements, Captions [Line Items]
Interest paid, net of amounts capitalized	143	144	317
Income taxes (received) paid, net	2	(60)	31
Supplemental disclosure of non-cash investing and financing transactions:
Accruals related to property, plant and equipment additions	29	42	30
Equity distributions	(42)	(137)	0
Equity contributions	98	73	0
Distribution of Questar Pipeline Group	0	0	(699)
Distribution of 50% interest in Cove Point	0	0	(2,765)
Acquisition of Eastern Energy Gas by BHE	$ 0	$ 0	$ 343
Dominion Energy, Inc. | Cove Point LNG, LP
Supplemental disclosure of non-cash investing and financing transactions:
Ownership interest	50.00%		50.00%