Organization and Basis of Presentation Organization and Basis of Presentation (Details) - USD ($) $ in Millions		Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Cash and Cash Equivalents		$ 113	$ 54
Restricted Cash in Other Current Assets		10	23
Restricted Cash in Other Noncurrent Assets		22	22
Cash, Cash Equivalents and Restricted Cash		145	99	$ 597	$ 511
Public Service Electric and Gas Company [Member]
Cash and Cash Equivalents		15	30
Restricted Cash in Other Current Assets		10	23
Restricted Cash in Other Noncurrent Assets		22	22
Cash, Cash Equivalents and Restricted Cash		47	75	$ 176	$ 266
PSEG Power & Other
Cash and Cash Equivalents	[1]	98	24
Restricted Cash in Other Current Assets	[1]	0	0
Restricted Cash in Other Noncurrent Assets	[1]	0	0
Cash, Cash Equivalents and Restricted Cash	[1]	$ 98	$ 24

[1] Includes amounts applicable to PSEG Power, Energy Holdings, Services and PSEG (parent company).