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, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net Income	[1]	$ 434	$ 591	$ 966	$ 1,878
Weighted Average Common Shares Outstanding, Basic (shares)		498	497	498	497
Effect of Stock Based Compensation Awards, Basic (shares)		0	0	0	0
Total Shares, Basic (shares)		498	497	498	497
Net Income, Basic (dollars per share)		$ 0.87	$ 1.19	$ 1.94	$ 3.78
Weighted Average Common Shares Outstanding, Diluted (shares)		498	497	498	497
Effect of Stock Based Compensation Awards, Diluted (shares)		2	3	2	3
Total Shares, Diluted (shares)		500	500	500	500
Net Income, Diluted (dollars per share)		$ 0.87	$ 1.18	$ 1.93	$ 3.76

[1] Includes net after-tax gains (losses) of $114 million and $212 million for the three months and $(72) million and $767 million for the six months ended June 30, 2024 and 2023, 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.