Condensed Consolidated Statements of Stockholders Equity Condensed Consolidated Statements of Stockholders Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Other Comprehensive Income (Loss), Tax	$ (12)	$ (14)	$ 12	$ (20)
Common Stock, Dividends, Per Share, Cash Paid	$ 0.51	$ 0.49	$ 1.02	$ 0.98
Public Service Electric and Gas Company [Member]
Other Comprehensive Income (Loss), Tax	$ 0	$ (1)	$ 1	$ (1)
PSEG Power [Member]
Other Comprehensive Income (Loss), Tax	$ (9)	$ (12)	$ 12	$ (17)