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Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Accounts Receivable, allowances | $ 56 | $ 59
Common Stock, issued | 534 | 534
Common Stock, authorized | 1,000 | 1,000
Treasury Stock, Shares | 30 | 29
PSE And G [Member] |  |
Accounts Receivable, allowances | $ 56 | $ 59
Common Stock, issued | 132 | 132
Common Stock, outstanding | 132 | 132
Common Stock, authorized | 150 | 150

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