Earnings Per Share (EPS) And Dividends (Basic And Diluted Earnings Per Share Computation) (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Payments for Repurchase of Common Stock			$ 0	$ 0	$ 500
Net Income	[1]	$ 591	$ 131	$ 1,878	$ 129
Weighted Average Common Shares Outstanding, Basic (shares)		497	497	497	499
Effect of Stock Based Compensation Awards, Basic (shares)		0	0	0	0
Total Shares, Basic (shares)		497	497	497	499
Net Income, Basic (dollars per share)		$ 1.19	$ 0.26	$ 3.78	$ 0.26
Weighted Average Common Shares Outstanding, Diluted (shares)		497	497	497	499
Effect of Stock Based Compensation Awards, Diluted (shares)		3	3	3	3
Total Shares, Diluted (shares)		500	500	500	502
Net Income, Diluted (dollars per share)		$ 1.18	$ 0.26	$ 3.76	$ 0.26

[1] Includes net after-tax gains (losses) of $212 million and $(74) million for the three months and $767 million and $(682) million for the six months ended June 30, 2023 and 2022, respectively, at PSEG Power related to the impacts of non-trading commodity mark-to-market activity, which consist of the financial impact from positions with future delivery dates.