Income Taxes - Schedule Of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Unrecognized Tax Benefits [Roll Forward]
Unrecognized Tax Benefits, Beginning Balance	$ 209	$ 110	$ 130
Increases as a Result of Positions Taken in a Prior Period	35	18	16
Decreases as a Result of Positions Taken in a Prior Period	(47)	(4)	(25)
Increases as a Result of Positions Taken during the Current Period	0	90	0
Decreases as a Result of Positions Taken during the Current Period	0	0	0
Decreases as a Result of Settlements with Taxing Authorities		(4)	(10)
Decreases due to Lapses of Applicable Statute of Limitations	(1)	(1)	(1)
Unrecognized Tax Benefits, Ending Balance	196	209	110
Accumulated Deferred Income Taxes Associated with Unrecognized Tax Benefits	(31)	(30)	(29)
Regulatory Asset-Unrecognized Tax Benefits	(1)	(1)	(2)
Total Amount of Unrecognized Tax Benefits that if Recognized, would Impact the Effective Tax Rate (including Interest and Penalties)	164	178	79
Public Service Electric and Gas Company
Unrecognized Tax Benefits [Roll Forward]
Unrecognized Tax Benefits, Beginning Balance	8	11	29
Increases as a Result of Positions Taken in a Prior Period	11	0	2
Decreases as a Result of Positions Taken in a Prior Period	0	(3)	(12)
Increases as a Result of Positions Taken during the Current Period	0	1	0
Decreases as a Result of Positions Taken during the Current Period	0	0	0
Decreases as a Result of Settlements with Taxing Authorities	0	0	(7)
Decreases due to Lapses of Applicable Statute of Limitations	0	(1)	(1)
Unrecognized Tax Benefits, Ending Balance	19	8	11
Accumulated Deferred Income Taxes Associated with Unrecognized Tax Benefits	(14)	(5)	(7)
Regulatory Asset-Unrecognized Tax Benefits	(1)	(1)	(2)
Total Amount of Unrecognized Tax Benefits that if Recognized, would Impact the Effective Tax Rate (including Interest and Penalties)	$ 4	$ 2	$ 2