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Financing Receivables (Schedule Of Credit Risk Profile Based On Payment Activity) (Detail) - PSE And G [Member] - USD ($) $ in Millions | Sep. 30, 2015 | Dec. 31, 2014
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Concentration Risk [Line Items] |  |
Credit Risk Profile Based on Payment Activity | $ 193 | $ 201
Commercial/Industrial [Member] |  |
Concentration Risk [Line Items] |  |
Credit Risk Profile Based on Payment Activity | 180 | 188
Residential [Member] |  |
Concentration Risk [Line Items] |  |
Credit Risk Profile Based on Payment Activity | $ 13 | $ 13

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- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph a -Article 9 + Details
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