Property, Plant And Equipment And Jointly-Owned Facilities (Schedule Of Jointly-Owned Facilities) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Conemaugh [Member] \| PSEG Power LLC
Public Utility, Property, Plant and Equipment [Line Items]
Ownership Interest		23.00%
Plant		$ 417
Accumulated Depreciation		$ 192
Keystone [Member] \| PSEG Power LLC
Public Utility, Property, Plant and Equipment [Line Items]
Ownership Interest		23.00%
Plant		$ 416
Accumulated Depreciation		200
Peach Bottom [Member] \| PSEG Power LLC
Public Utility, Property, Plant and Equipment [Line Items]
Ownership Interest	50.00%
Plant	$ 1,340	1,334
Accumulated Depreciation	$ 435	389
Salem [Member] \| PSEG Power LLC
Public Utility, Property, Plant and Equipment [Line Items]
Ownership Interest	57.00%
Plant	$ 1,256	1,196
Accumulated Depreciation	384	333
Nuclear Support Facilities [Member] \| PSEG Power LLC
Public Utility, Property, Plant and Equipment [Line Items]
Plant	247	244
Accumulated Depreciation	$ 107	95
Yards Creek [Member] \| PSEG Power LLC
Public Utility, Property, Plant and Equipment [Line Items]
Ownership Interest	50.00%
Plant	$ 55	48
Accumulated Depreciation	$ 27	26
Merrill Creek Reservoir [Member] \| PSEG Power LLC
Public Utility, Property, Plant and Equipment [Line Items]
Ownership Interest	14.00%
Plant	$ 1	1
Accumulated Depreciation	0	0
Transmission Facilities [Member] \| Public Service Electric and Gas Company
Public Utility, Property, Plant and Equipment [Line Items]
Plant	161	162
Accumulated Depreciation	$ 60	$ 58

The period end amount owned by the reporting utility of a jointly owned utility plant in service.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 980
-SubTopic 360
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 10.C)
-URI http://asc.fasb.org/extlink&oid=115995737&loc=d3e659983-123033

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- Definition

The period end amount of accumulated depreciation in a jointly owned electricity generation plant.

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- Definition

The proportionate share of interest (percent) in a jointly owned utility plant.

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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.

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