Income Taxes (Deferred Income Tax) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Current (net)	$ 24	$ 49
Current (net)	0	72
Net Total Noncurrent Deferred Income Taxes and ITC	7,107	6,542
PSE&G [Member]
Current (net)	16	49
OPEB	182	189
Other	0	93
Total Noncurrent Assets	182	282
Total Assets	198	331
Current (net)	30	60
Plant-Related Items	3,439	3,374
New Jersey Corporate Business Tax	340	253
Securitization	279	371
Conservation Costs	52	101
Pension Costs	171	189
Taxes Recoverable Through Future Rate (net)	181	165
Deferred Tax Liabilities, Other	68	0
Total Non-Current Liabilities	4,530	4,453
Total Liabilities	4,560	4,513
Net Current Deferred Tax Assets	16	49
Net Current Deferred Income Tax Liabilities	30	60
Net Noncurrent Deferred Income Tax Liabilities	4,348	4,171
Investment Tax Credit (ITC)	58	52
Net Total Noncurrent Deferred Income Taxes and ITC	4,406	4,223
PSEG [Member]
Current (net)	24	49
Accumulated Other Comprehensive Income (Loss)	3	40
OPEB	280	200
Related to Uncertain Tax Positions	201	75
Other	124	262
Total Noncurrent Assets	608	577
Total Assets	632	626
Current (net)	0	72
Plant-Related Items	4,865	4,685
New Jersey Corporate Business Tax	534	343
Nuclear Decommissioning	282	209
Securitization	279	371
Leasing Activities	639	656
Pension Costs	288	180
AROs	241	297
Taxes Recoverable Through Future Rate (net)	181	165
Deferred Tax Liabilities, Other	293	118
Total Non-Current Liabilities	7,602	7,024
Total Liabilities	7,602	7,096
Net Current Deferred Tax Assets	24	49
Net Current Deferred Income Tax Liabilities	0	72
Net Noncurrent Deferred Income Tax Liabilities	6,994	6,447
Investment Tax Credit (ITC)	113	95
Net Total Noncurrent Deferred Income Taxes and ITC	7,107	6,542
Power [Member]
Current (net)	30	0
Accumulated Other Comprehensive Income (Loss)	0	40
Pension Costs	0	38
Contractual Liabilities & Environmental Costs	35	35
Related to Uncertain Tax Positions	32	27
Other	91	61
Total Noncurrent Assets	158	201
Total Assets	188	201
Current (net)	0	16
Plant-Related Items	1,416	1,291
New Jersey Corporate Business Tax	81	32
Nuclear Decommissioning	282	209
Pension Costs	77
AROs	241	297
Deferred Tax Liabilities, Other Comprehensive Income	2	0
Deferred Tax Liabilities, Other	36	0
Total Non-Current Liabilities	2,135	1,829
Total Liabilities	2,135	1,845
Net Current Deferred Income Tax Liabilities	0	16
Net Noncurrent Deferred Income Tax Liabilities	1,977	1,628
Investment Tax Credit (ITC)	54	41
Net Total Noncurrent Deferred Income Taxes and ITC	$ 2,031	$ 1,669