Employee Benefit Plans - EGTS - Narrative (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended	12 Months Ended
	Nov. 30, 2020	Jul. 31, 2020	Sep. 30, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Distribution of net assets						$ 699
Other Postretirement
Defined Benefit Plan Disclosure [Line Items]
Employer contributions				$ 8	$ 14
Net periodic benefit cost (credit)				$ 1	$ 6	$ (10)
Discount rate				4.54%	2.95%	2.59%
Defined contribution plan cost				$ 159	$ 137	$ 127
EGTS
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan cost						2
EGTS | MidAmerican Energy Company Retirement Plan | Pension
Defined Benefit Plan Disclosure [Line Items]
Employer contributions				12	16	2
EGTS | MidAmerican Energy Company Welfare Benefit Plan | Other Postretirement
Defined Benefit Plan Disclosure [Line Items]
Employer contributions				2	9	2
EGTS | BHE GT&S, LLC Defined Contribution Savings Plan
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan, employer contribution				$ 5	$ 4	1
EGTS | Dominion Energy Pension Plan | Pension
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost (credit)						(17)
EGTS | Dominion Energy Retiree Health and Welfare Plan | Pension
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost (credit)						$ (5)
EGTS | Pension Benefit Plan Associated With GT&S Transaction
Defined Benefit Plan Disclosure [Line Items]
Increase in the pension benefit obligation			$ 3
Decrease in fair value of the pension plan assets			$ 7
Discount rate			3.16%
EGTS | Disposed of by means other than sale | Pension plan asset
Defined Benefit Plan Disclosure [Line Items]
Distribution of net assets	$ 904	$ 904