Schedule Of Consolidated Debt (Long-Term Debt Financing Transactions) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($)
PSEG [Member] | Senior Notes One Point Six Zero Percent Due In Two Thousand Nineteen [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 400
Stated interest rate of debt instrument	1.60%
PSEG [Member] | Senior Notes Two Point Zero Percent Due In Two Thousand Twenty One [Member] [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300
Stated interest rate of debt instrument	2.00%
PSE&G [Member] | Medium Term Notes Three Point Zero Percent Due In Two Thousand Twenty Five [Member]
Debt Instrument [Line Items]
Stated interest rate of debt instrument	3.00%
PSE&G [Member] | Medium Term Notes Four Point Zero Five Percent due Two Thousand Forty Five [Member]
Debt Instrument [Line Items]
Stated interest rate of debt instrument	4.05%
PSE&G [Member] | Medium Term Notes Four Point One Five Percent Due In Two Thousand Forty Five [Member]
Debt Instrument [Line Items]
Stated interest rate of debt instrument	4.15%
PSE&G [Member] | Pollution Control Bonds [Member]
Debt Instrument [Line Items]
Repayments of Long-term Debt	$ 100
PSE&G [Member] | First And Refunding Mortgage Bonds Six Point Seven Five Percentage Due On Two Thousand Sixteen [Member]
Debt Instrument [Line Items]
Stated interest rate of debt instrument	6.75%
Repayments of Long-term Debt	$ 171
PSE&G [Member] | Medium Term Notes One Point Nine Zero Percent Due In Two Thousand Twenty One [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 300
Stated interest rate of debt instrument	1.90%
PSE&G [Member] | Medium Term Notes Three Point Eight Zero Percent due Two Thousand Forty Six [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 550
Stated interest rate of debt instrument	3.80%
PSE&G [Member] | Medium Term Notes Two Point Two Five Percent due Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt	$ 425
Stated interest rate of debt instrument	2.25%
Power [Member] | Senior Notes Three Point Zero Percent Due In Two Thousand Twenty One [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 700
Stated interest rate of debt instrument	3.00%
Power [Member] | Senior Notes Five Point Three Two Percentage Due Two Thousand Sixteen [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 303
Stated interest rate of debt instrument	5.32%
Power [Member] | Senior Notes Two Point Seven Five Percentage Due Two Thousand Sixteen [Member]
Debt Instrument [Line Items]
Stated interest rate of debt instrument	2.75%
Repayments of Long-term Debt	$ 250