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Organization and Basis of Presentation Organization and Basis of Presentation (Tables) | 3 Months Ended
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Mar. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Cash, Cash Equivalents and Restricted Cash [Table Text Block] | The following provides a reconciliation of cash, cash equivalents and restricted cash reported within the Condensed Consolidated Balance Sheets that sum to the total of the same such amounts for the beginning (December 31, 2017) and ending periods shown in the Condensed Consolidated Statements of Cash Flows for the three months ended March 31, 2018.
|  | PSE&G |  | Power |  | Other (A) |  | Consolidated |
|  | Millions |
| As of December 31, 2017 |  |  |  |  |  |  |  |
| Cash and Cash Equivalents | $ | 242 |  |  | $ | 32 |  |  | $ | 39 |  |  | $ | 313 |  |
| Restricted Cash in Other Current Assets | — |  |  | — |  |  | — |  |  | — |  |
| Restricted Cash in Other Noncurrent Assets | 2 |  |  | — |  |  | — |  |  | 2 |  |
| Cash, Cash Equivalents and Restricted Cash | $ | 244 |  |  | $ | 32 |  |  | $ | 39 |  |  | $ | 315 |  |
| As of March 31, 2018 |  |  |  |  |  |  |  |
| Cash and Cash Equivalents | $ | 48 |  |  | $ | 11 |  |  | $ | 59 |  |  | $ | 118 |  |
| Restricted Cash in Other Current Assets | 14 |  |  | — |  |  | — |  |  | 14 |  |
| Restricted Cash in Other Noncurrent Assets | 2 |  |  | — |  |  | — |  |  | 2 |  |
| Cash, Cash Equivalents and Restricted Cash | $ | 64 |  |  | $ | 11 |  |  | $ | 59 |  |  | $ | 134 |  |
(A) | Includes amounts applicable to PSEG (parent corporation), Energy Holdings and Services.

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- Definition Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=98513485&loc=SL98516268-108586 + Details
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