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Regulatory Assets And Liabilities (Schedule Of Regulatory Assets and Liabilities) (Details) $ in Millions | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | ---
Oct. 31, 2016 USD ($) | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($) $ / DTH | Oct. 01, 2016 | Dec. 31, 2015 USD ($)
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liabilities of Consolidated Variable Interest Entity, Current |  |  |  | $ 0 |  | $ 42
Regulatory Assets, Current |  |  |  | 199 |  | 164
Regulatory Assets, Noncurrent |  |  |  | 3,319 |  | 3,196
Regulatory Liability, Current |  |  |  | 88 |  | 123
Regulatory Liabilities, Noncurrent |  |  |  | 118 |  | 175
PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets of Variable Interest Entities (VIEs) |  |  |  |  |  | 0
Regulatory Liabilities of Consolidated Variable Interest Entity, Current |  |  |  | $ 0 |  | 42
Current BGSS rate per therm |  |  |  | 0.40 |  |
Proposed BGSS rate per therm |  |  |  |  | 0.34 |
Self Implementing Bill Credit per therm | $ / DTH |  |  |  | 0.08 |  |
True-up adjustment for Transmission Formula Rate Revenues |  |  |  | $ (34) |  |
Deferred Storm and Property Reserve Deficiency, Noncurrent |  |  |  | 220 |  |
Regulatory Assets, Current |  |  |  | 199 |  | 164
Regulatory Assets Including Consolidated Variable Interest Entities, Current |  |  |  | 199 |  | 164
Regulatory Assets, Noncurrent |  |  |  | 3,319 |  | 3,196
Total Noncurrent Regulatory Assets |  |  |  | 3,319 |  | 3,196
Total Regulatory Assets |  |  |  | 3,518 |  | 3,360
Regulatory Liability, Current |  |  |  | 88 |  | 123
Regulatory Liabilities Including Consolidated Variable Interest Entity, Current |  |  |  | 88 |  | 165
Regulatory Liabilities, Noncurrent |  |  |  | 118 |  | 175
Regulatory Liabilities Of Consolidated Variable Interest Entity Noncurrent |  |  |  |  |  | 0
Total Noncurrent Regulatory Liabilities |  |  |  | 118 |  | 175
Total Regulatory Liabilities |  |  |  | 206 |  | 340
Public Utilities, Requested Rate Increase (Decrease), Amount |  | $ 121 |  |  |  |
Proposed Recovery of costs for Electric Green Energy Program |  |  | $ 44 |  |  |
Proposed Recovery of costs for Gas Green Energy Programs |  |  | $ 13 |  |  |
Stranded Costs [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liability, Current | [1] |  |  | 0 |  | 64
Solar and EE Recovery Charge formerly RRC and currently Green Program Recovery Charges (GPRC) [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liability, Current | [1],[2] |  |  | 28 |  | 36
Societal Benefits Charges (SBC) [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liability, Current | [1],[2] |  |  | 4 |  | 31
Gas Margin Adjustment Clause [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liability, Current | [1],[2] |  |  | 11 |  | 13
FERC Formula Rate True-Up [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liability, Current | [1],[2] |  |  | 34 |  | 19
Regulatory Liabilities, Noncurrent | [1],[2] |  |  | 1 |  | 49
Overrecovered Gas and Electric Costs - BGSS and BGS [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liability, Current | [1],[2] |  |  | 6 |  | 1
Electric and Gas Cost Of Removal [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liabilities, Noncurrent |  |  |  | 94 |  | 122
Other [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liabilities, Noncurrent |  |  |  | 3 |  | 4
Non-Utility Generation Charge [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Liability, Current | [1],[2] |  |  | 5 |  | 1
New Jersey Clean Energy Program [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Current | [1] |  |  | 142 |  | 142
Weather Normalization Clause [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Current | [1] |  |  | 49 |  | 10
Solar and EE Recovery Charge formerly RRC and currently Green Program Recovery Charges (GPRC) [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent | [1],[2] |  |  | 91 |  | 104
Pension and Other Postretirement Benefit Costs [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent |  |  |  | 1,403 |  | 1,270
Deferred Income Taxes [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent |  |  |  | 507 |  | 467
Manufactured Gas Plant (MGP) Remediation Costs [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent | [1] |  |  | 403 |  | 431
Storm Damage Deferral [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent |  |  |  | 239 |  | 233
Remediation Adjustment Charge (Other SBC) [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent | [1],[2] |  |  | 180 |  | 174
Conditional Asset Retirement Obligation [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent |  |  |  | 157 |  | 152
Electric and Gas Cost Of Removal [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent |  |  |  | 189 |  | 160
Unamortized Loss On Reacquired Debt And Debt Expense [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent |  |  |  | 61 |  | 67
Mark-To-Market Contracts [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Noncurrent |  |  |  | 0 |  | 63
Regulatory Liabilities, Noncurrent |  |  |  | 20 |  | 0
Other [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Current |  |  |  | 6 |  | 1
Regulatory Assets, Noncurrent |  |  |  | 89 |  | 75
Underrecovered Electric Costs Basic Generation Service [Member] | PSE&G [Member] |  |  |  |  |  |
Regulatory Assets And Liabilities [Line Items] |  |  |  |  |  |
Regulatory Assets, Current | [1],[2] |  |  | $ 2 |  | $ 11
[1] | Recoverable/Refundable per specific rate order.
[2] | Recovered/Refunded with interest.

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