Pension, OPEB and Savings Plans (Schedule Of Pension And OPEB Costs) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Benefit Costs	$ 152	$ 168	$ 94
Pension Benefits [Member] | Power [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Benefit Costs	43	52	29
Pension Benefits [Member] | PSE&G [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Benefit Costs	91	97	51
Pension Benefits [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Benefit Costs	18	19	14
Other Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Benefit Costs	91	103	81
Other Benefits [Member] | Power [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Benefit Costs	23	18	12
Other Benefits [Member] | PSE&G [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Benefit Costs	65	82	67
Other Benefits [Member] | Other [Member]
Defined Benefit Plan Disclosure [Line Items]
Total Benefit Costs	$ 3	$ 3	$ 2