Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Customer receivables, allowance for doubtful accounts	$ 38,000,000	$ 40,000,000
Other receivables, allowance for doubtful accounts	$ 4,000,000	$ 4,000,000
Common stock, shares authorized	1,800,000,000	1,800,000,000
Common stock, shares outstanding	833,000,000	810,000,000
Virginia Electric and Power Company
Customer receivables, allowance for doubtful accounts	$ 28,000,000	$ 28,000,000
Other receivables, allowance for doubtful accounts	$ 2,000,000	$ 2,000,000
Common stock, shares authorized	500,000	500,000
Common stock, shares outstanding	274,723	274,723