Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Accounts Receivable,allowances	$ 63	$ 59
Common Stock, issued	534,000,000	534,000,000
Common Stock, authorized	1,000,000,000	1,000,000,000
Treasury Stock, Shares	30,000,000	29,000,000
PSE&G [Member]
Accounts Receivable,allowances	$ 63	$ 59
Common Stock, issued	132,000,000	132,000,000
Common Stock, authorized	150,000,000	150,000,000