XML 147 R154.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Financial Information By Business Segments (Financial Information By Business Segments) (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  | $ 2,478 | $ 2,302 | $ 2,316 |  | $ 2,980 | $ 2,468 | $ 2,394 | $ 2,016 |  | $ 2,818 | $ 10,076 |  | $ 9,696 | $ 9,094
Depreciation and Amortization |  |  |  |  |  |  |  |  |  |  |  | 1,248 |  | 1,158 | 1,986
Operating Income (Loss) |  | 507 | 490 | 160 | [1] | 786 | 501 | 554 | 411 | [1] | 832 | 1,943 |  | 2,298 | 1,429
Income from Equity Method Investments |  |  |  |  |  |  |  |  |  |  |  | 14 |  | 15 | 14
Interest Income |  |  |  |  |  |  |  |  |  |  |  | 26 |  | 29 | 30
Interest Expense |  |  |  |  |  |  |  |  |  |  |  | (569) |  | (476) | (391)
Income (Loss) before Income Taxes |  |  |  |  |  |  |  |  |  |  |  | 1,950 |  | 1,855 | 1,268
Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  |  |  |  | 257 |  | 417 | (306)
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | 1,693 |  | 1,438 | 1,574
Gross Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |  | 3,166 |  | 3,912 | 4,190
Total Assets |  | 47,730 |  |  |  |  | 45,326 |  |  |  |  | 47,730 |  | 45,326 | 42,716
Investments in Equity Method Subsidiaries |  | 67 |  |  |  |  | 86 |  |  |  |  | 67 |  | 86 | 87
PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  |  |  |  | 4,385 |  | 4,146 | 3,860
Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  |  |  |  | 6,625 |  | 6,471 | 6,324
Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  |  |  |  | 549 |  | 571 | 466
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  |  |  |  | (1,483) |  | (1,492) | (1,556)
Retained Earnings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | 1,693 |  | 1,438 | 1,574
Operating Segments [Member] | PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  |  |  |  | 4,385 |  | 4,146 | 3,860
Depreciation and Amortization |  |  |  |  |  |  |  |  |  |  |  | 377 |  | 354 | 1,268
Operating Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | 448 |  | 596 | (367)
Income from Equity Method Investments |  |  |  |  |  |  |  |  |  |  |  | 14 |  | 15 | 14
Interest Income |  |  |  |  |  |  |  |  |  |  |  | 7 |  | 5 | 3
Interest Expense |  |  |  |  |  |  |  |  |  |  |  | (119) |  | (76) | (50)
Income (Loss) before Income Taxes |  |  |  |  |  |  |  |  |  |  |  | 671 |  | 431 | (250)
Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  |  |  |  | 203 |  | 66 | (729)
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | 468 | [2] | 365 | 479
Gross Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |  | 607 |  | 996 | 1,231
Total Assets |  | 12,805 |  |  |  |  | 12,594 |  |  |  |  | 12,805 |  | 12,594 | 12,418
Investments in Equity Method Subsidiaries |  | 66 |  |  |  |  | 86 |  |  |  |  | 66 |  | 86 | 87
Operating Segments [Member] | Public Service Electric and Gas Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues |  |  |  |  |  |  |  |  |  |  |  | 6,625 |  | 6,471 | 6,324
Depreciation and Amortization |  |  |  |  |  |  |  |  |  |  |  | 837 |  | 770 | 685
Operating Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | 1,469 |  | 1,606 | 1,760
Income from Equity Method Investments |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0
Interest Income |  |  |  |  |  |  |  |  |  |  |  | 18 |  | 21 | 24
Interest Expense |  |  |  |  |  |  |  |  |  |  |  | (361) |  | (333) | (303)
Income (Loss) before Income Taxes |  |  |  |  |  |  |  |  |  |  |  | 1,343 |  | 1,411 | 1,536
Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  |  |  |  | 93 |  | 344 | 563
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | 1,250 |  | 1,067 | 973
Gross Additions to Long-Lived Assets |  |  |  |  |  |  |  |  |  |  |  | 2,542 |  | 2,896 | 2,919
Total Assets |  | 33,266 |  |  |  |  | 31,109 |  |  |  |  | 33,266 |  | 31,109 | 28,554
Investments in Equity Method Subsidiaries |  | 0 |  |  |  |  | 0 |  |  |  |  | 0 |  | 0 | 0
Operating Segments [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues | [3] |  |  |  |  |  |  |  |  |  |  | 549 |  | 571 | 466
Depreciation and Amortization | [3] |  |  |  |  |  |  |  |  |  |  | 34 |  | 34 | 33
Operating Income (Loss) | [3] |  |  |  |  |  |  |  |  |  |  | 26 |  | 96 | 36
Income from Equity Method Investments | [3] |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0
Interest Income | [3] |  |  |  |  |  |  |  |  |  |  | 6 |  | 9 | 5
Interest Expense | [3] |  |  |  |  |  |  |  |  |  |  | (94) |  | (73) | (40)
Income (Loss) before Income Taxes | [3] |  |  |  |  |  |  |  |  |  |  | (64) |  | 13 | (18)
Income Tax Expense (Benefit) | [3] |  |  |  |  |  |  |  |  |  |  | (39) |  | 7 | (140)
Net Income (Loss) | [3] |  |  |  |  |  |  |  |  |  |  | (25) |  | 6 | 122
Gross Additions to Long-Lived Assets | [3] |  |  |  |  |  |  |  |  |  |  | 17 |  | 20 | 40
Total Assets | [3] | 2,715 |  |  |  |  | 2,604 |  |  |  |  | 2,715 |  | 2,604 | 2,666
Investments in Equity Method Subsidiaries | [3] | 1 |  |  |  |  | 0 |  |  |  |  | 1 |  | 0 | 0
Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues | [4] |  |  |  |  |  |  |  |  |  |  | (1,483) |  | (1,492) | (1,556)
Depreciation and Amortization | [4] |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0
Operating Income (Loss) | [4] |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0
Income from Equity Method Investments | [4] |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0
Interest Income | [4] |  |  |  |  |  |  |  |  |  |  | (5) |  | (6) | (2)
Interest Expense | [4] |  |  |  |  |  |  |  |  |  |  | 5 |  | 6 | 2
Income (Loss) before Income Taxes | [4] |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0
Income Tax Expense (Benefit) | [4] |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0
Net Income (Loss) | [4] |  |  |  |  |  |  |  |  |  |  | 0 |  |  | 0
Gross Additions to Long-Lived Assets | [4] |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 | 0
Total Assets | [4] | (1,056) |  |  |  |  | (981) |  |  |  |  | (1,056) |  | (981) | (922)
Investments in Equity Method Subsidiaries | [4] | 0 |  |  |  |  | 0 |  |  |  |  | 0 |  | 0 | 0
PSEG Power LLC |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (Loss) on Disposition of Assets, after tax |  |  |  |  |  |  |  |  |  |  |  | (286) |  |  |
Operating Revenues |  | 1,115 | 771 | 1,083 |  | 1,416 | 1,108 | 868 | 767 |  | 1,403 | 4,385 |  | 4,146 | 3,860
Depreciation and Amortization |  |  |  |  |  |  |  |  |  |  |  | 377 |  | 354 | 1,268
Operating Income (Loss) |  | 154 | $ 79 | $ (86) | [1] | $ 301 | 113 | $ 112 | $ 42 | [1] | $ 329 | 448 |  | 596 | (367)
Income from Equity Method Investments |  |  |  |  |  |  |  |  |  |  |  | 14 |  | 15 | 14
Interest Expense |  |  |  |  |  |  |  |  |  |  |  | (119) |  | (76) | (50)
Income (Loss) before Income Taxes |  |  |  |  |  |  |  |  |  |  |  | 671 |  | 431 | (250)
Income Tax Expense (Benefit) |  |  |  |  |  |  |  |  |  |  |  | 203 |  | 66 | (729)
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | 468 |  | 365 | 479
Total Assets |  | $ 12,805 |  |  |  |  | $ 12,594 |  |  |  |  | 12,805 |  | 12,594 |
PSEG Power LLC | Retained Earnings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | $ 468 |  | $ 365 | $ 479
[1] | The decrease in Operating Income and Net Income at PSEG consolidated and PSEG Power in the second quarter of 2019 as compared to the same quarter in 2018 was primarily due to the loss in 2019 related to the sale of PSEG Power’s ownership interests in the Keystone and Conemaugh fossil generation plants, offsetting MTM net gains in 2019 as compared to net losses in 2018.
[2] | Includes an after-tax loss of $286 million related to the sale of PSEG Power’s ownership interests in the Keystone and Conemaugh generation plants. See Note 4. Early Plant Retirements/Asset Dispositions for additional information.
[3] | Includes amounts applicable to Energy Holdings and PSEG LI, which are below the quantitative threshold for separate disclosure as reportable segments. Other also includes amounts applicable to PSEG (parent corporation) and Services.
[4] | Intercompany eliminations primarily relate to intercompany transactions between PSE&G and PSEG Power. For a further discussion of the intercompany transactions between PSE&G and PSEG Power, see Note 26. Related-Party Transactions.

X
- Definition Gain (Loss) on Disposition of Assets, after tax + References No definition available. + Details
Name: | pseg_GainLossonDispositionofAssetsaftertax
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Segment Reporting Investments In Equity Method Subsidiaries + References No definition available. + Details
Name: | pseg_SegmentReportingInvestmentsInEquityMethodSubsidiaries
Namespace Prefix: | pseg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of expense for allocation of cost of tangible and intangible assets over their useful lives directly used in production of good and rendering of service. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(2)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(10)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(8)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(15)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(12)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(10)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(f)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 + Details
Name: | us-gaap_IncomeLossFromEquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (210.5-03(11)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(b)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 + Details
Name: | us-gaap_InvestmentIncomeInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentAdditions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(1)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pseg_PSEGPowerLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=pseg_PublicServiceElectricandGasCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_IntersegmentEliminationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=pseg_PSEGPowerLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |