Income Taxes - Schedule Of Deferred Income Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Deferred Income Taxes Assets:
Regulatory Liability Excess Deferred Tax	$ 314	$ 339
OPEB	49	58
Bad Debt	43	57
Corporate Alternative Minimum Tax (CAMT) Credit Carryforward	0	44
Operating Leases	38	42
Other	147	129
Total Assets	591	669
Deferred Income Taxes Liabilities:
Plant-Related Items	5,084	4,850
New Jersey Corporate Business Tax	1,414	1,284
Leasing Activities	33	35
AROs and NDT Fund	281	250
Taxes Recoverable Through Future Rate (net)	250	201
GPRC-CEF-EE	214	139
Pension Costs	193	189
Operating Leases	34	38
Other	278	291
Total Liabilities	7,781	7,277
Summary of Accumulated Deferred Income Taxes:
Net Deferred Income Tax Liabilities	7,190	6,608
ITC	58	63
Net Total Deferred Income Taxes and ITC	7,248	6,671
Public Service Electric and Gas Company
Deferred Income Taxes Assets:
Regulatory Liability Excess Deferred Tax	314	339
OPEB	22	28
Bad Debt	43	57
Corporate Alternative Minimum Tax (CAMT) Credit Carryforward	0	106
Operating Leases	20	22
Other	54	60
Total Assets	453	612
Deferred Income Taxes Liabilities:
Plant-Related Items	4,631	4,396
New Jersey Corporate Business Tax	1,303	1,160
Taxes Recoverable Through Future Rate (net)	250	201
GPRC-CEF-EE	214	139
Conservation Costs	103	88
Pension Costs	199	198
Operating Leases	20	21
Other	152	158
Total Liabilities	6,872	6,361
Summary of Accumulated Deferred Income Taxes:
Net Deferred Income Tax Liabilities	6,419	5,749
ITC	58	64
Net Total Deferred Income Taxes and ITC	$ 6,477	$ 5,813