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Goodwill And Other Intangibles (Schedule of Intangibles) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Goodwill [Line Items] |  |  |
Purchases of Intangible Assets | $ 98 | $ 146 | $ 117
Intangible Assets | 149 | 143 |
PSEG Power LLC |  |  |
Goodwill [Line Items] |  |  |
Retirement of Intangibles | (89) | (116) |
Purchases of Intangible Assets | 98 | 146 | 117
Sales and Transfers of Intangible Assets | (3) | (1) |
Intangible Assets | 149 | 143 | 114
Renewable Energy Credits [Member] | PSEG Power LLC |  |  |
Goodwill [Line Items] |  |  |
Retirement of Intangibles | (83) | (90) |
Purchases of Intangible Assets | 72 | 110 |
Sales and Transfers of Intangible Assets | (3) | (1) |
Intangible Assets | 45 | 59 | 40
Emissions Allowances [Member] | PSEG Power LLC |  |  |
Goodwill [Line Items] |  |  |
Retirement of Intangibles | (6) | (26) |
Purchases of Intangible Assets | 26 | 36 |
Sales and Transfers of Intangible Assets | 0 | 0 |
Intangible Assets | $ 104 | $ 84 | $ 74

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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 + Details
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- Definition The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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