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Financing Receivables - Schedule of Outstanding Loans by Class of Customer (Details) - Public Service Electric and Gas Company [Member] - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Concentration Risk [Line Items] |  |
Outstanding Loans by Class of Customers | $ 40 | $ 63
Current Portion (included in Accounts Receivable) | (17) | (23)
Noncurrent Portion (included in Long-Term Investments) | 23 | 40
Commercial/Industrial [Member] |  |
Concentration Risk [Line Items] |  |
Outstanding Loans by Class of Customers | 38 | 60
Residential [Member] |  |
Concentration Risk [Line Items] |  |
Outstanding Loans by Class of Customers | 2 | $ 3
Solar Loan I [Member] |  |
Concentration Risk [Line Items] |  |
Outstanding Loans by Class of Customers | $ 1 |
Solar Loan I [Member] | Commercial/Industrial [Member] |  |
Concentration Risk [Line Items] |  |
Loan receivable, term | 15 years |
Solar Loan I [Member] | Residential [Member] |  |
Concentration Risk [Line Items] |  |
Loan receivable, term | 10 years |
Solar Loan II [Member] |  |
Concentration Risk [Line Items] |  |
Outstanding Loans by Class of Customers | $ 20 |
Solar Loan II [Member] | Commercial/Industrial [Member] |  |
Concentration Risk [Line Items] |  |
Loan receivable, term | 15 years |
Solar Loan II [Member] | Residential [Member] |  |
Concentration Risk [Line Items] |  |
Loan receivable, term | 10 years |
Solar Loan III [Member] |  |
Concentration Risk [Line Items] |  |
Outstanding Loans by Class of Customers | $ 19 |
Solar Loan III [Member] | Commercial/Industrial [Member] |  |
Concentration Risk [Line Items] |  |
Loan receivable, term | 10 years |
Solar Loan III [Member] | Residential [Member] |  |
Concentration Risk [Line Items] |  |
Loan receivable, term | 10 years |

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- Definition Amortized cost, before allowance for credit loss, of financing receivable classified as current. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483467/210-10-45-1 + Details
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