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Commitments and Contingent Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2015
Power [Member] |
Loss Contingencies [Line Items] |
Face Value Of Outstanding Guarantees, Current Exposure And Margin Positions | The face value of Power's outstanding guarantees, current exposure and margin positions as of September 30, 2015 and December 31, 2014 are shown as follows:
|  | As of |  | As of |
|  | September 30, 2015 |  | December 31, 2014 |
|  | Millions |
| Face Value of Outstanding Guarantees | $ | 1,733 |  |  | $ | 1,814 |  |
| Exposure under Current Guarantees | $ | 184 |  |  | $ | 273 |  |
| Letters of Credit Margin Posted | $ | 178 |  |  | $ | 159 |  |
| Letters of Credit Margin Received | $ | 80 |  |  | $ | 40 |  |
| Cash Deposited and Received: |  |  |  |
| Counterparty Cash Margin Deposited | $ | — |  |  | $ | — |  |
| Counterparty Cash Margin Received | $ | (44 | ) |  | $ | (13 | ) |
| Net Broker Balance Deposited (Received) | $ | 4 |  |  | $ | 115 |  |
| In the Event Power were to Lose its Investment Grade Rating: |  |  |  |
| Additional Collateral that could be Required | $ | 796 |  |  | $ | 945 |  |
| Liquidity Available under PSEG’s and Power’s Credit Facilities to Post Collateral | $ | 3,375 |  |  | $ | 3,495 |  |
| Additional Amounts Posted: |  |  |  |
| Other Letters of Credit | $ | 47 |  |  | $ | 45 |  |
Total Minimum Purchase Commitments | As of September 30, 2015, the total minimum purchase requirements included in these commitments were as follows:
| Fuel Type |  | Power's Share of Commitments through 2019 |
|  |  | Millions |
| Nuclear Fuel |  |  |
| Uranium |  | $ | 440 |  |
| Enrichment |  | $ | 345 |  |
| Fabrication |  | $ | 179 |  |
| Natural Gas |  | $ | 1,001 |  |
| Coal |  | $ | 331 |  |
PSE And G [Member] |
Loss Contingencies [Line Items] |
Contract For Anticipated BGS-Fixed Price Eligible Load | The contract prices in dollars per MWh for the BGS-RSCP supply, as well as the approximate load, are as follows:
|  | Auction Year |  |
|  | 2012 |  | 2013 |  | 2014 |  | 2015 |  |
| 36-Month Terms Ending | May 2015 |  |  | May 2016 |  |  | May 2017 |  |  | May 2018 |  | (A) |
| Load (MW) | 2,900 |  |  | 2,800 |  |  | 2,800 |  |  | 2,900 |  |  |
| $ per MWh | $83.88 |  | $92.18 |  | $97.39 |  | $99.54 |  |
(A) | Prices set for the 2015 BGS auction year became effective on June 1, 2015 when the 2012 BGS auction agreements expired.

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- Definition Tabular disclosure of key provisions of an arrangement under which the entity has agreed to purchase goods or services over a period of time greater than one year or the normal operating cycle, if longer, including the item for which expenditures will be made, minimum quantities, milestones, time period and committed amount. + References No definition available. + Details
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- Definition Tabular disclosure of each guarantee obligation, or each group of similar guarantee obligations, including (a) the nature of the guarantee, including its term, how it arose, and the events or circumstances that would require the guarantor to perform under the guarantee; (b) the maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee; (c) the current carrying amount of the liability, if any, for the guarantor's obligations under the guarantee; and (d) the nature of any recourse provisions under the guarantee, and any assets held either as collateral or by third parties, and any relevant related party disclosure. Excludes disclosures about product warranties. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12265-110248 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12069-110248 + Details
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- Definition Tabular disclosure of information concerning the terms and significance of long term contracts to purchase power (generally referred to as purchase power agreements (PPAs) or power sale agreements (PSAs)) including date of contract expiration, share of plant output being purchased, estimated annual cost, annual minimum debt service payment required and amount of related long-term debt or lease obligations outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 25 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6394851&loc=SL2265659-115463 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 10.D) -URI http://asc.fasb.org/extlink&oid=6499423&loc=d3e659339-123030 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 10 -Section D + Details
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