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Selected Quarterly Data (Schedule Of Selected Quarterly Data) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Schedule of Quarterly Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues | $ 2,090 |  | $ 2,450 | $ 1,905 | $ 2,616 | $ 2,278 |  | $ 2,688 | $ 2,314 | $ 3,135 | $ 9,061 | $ 10,415 | $ 10,886
Operating Income (Loss) | (175) |  | 577 | 347 | 827 | 532 |  | 814 | 568 | 1,048 | 1,576 | 2,962 | 2,623
Net Income (Loss) | $ (98) | [1] | $ 327 | $ 187 | $ 471 | $ 309 | [1] | $ 439 | $ 345 | $ 586 |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  | $ 887 | $ 1,679 | $ 1,518
Basic | 505 |  | 505 | 505 | 505 | 505 |  | 505 | 506 | 506 | 505 | 505 | 506
Diluted | 508 |  | 508 | 508 | 508 | 508 |  | 508 | 508 | 508 | 508 | 508 | 508
Earnings Per Share, Basic | $ (0.19) |  | $ 0.65 | $ 0.37 | $ 0.93 | $ 0.61 |  | $ 0.87 | $ 0.68 | $ 1.16 | $ 1.76 | $ 3.32 | $ 3.00
Earnings Per Share, Diluted | $ (0.19) |  | $ 0.64 | $ 0.37 | $ 0.93 | $ 0.60 |  | $ 0.87 | $ 0.68 | $ 1.15 | $ 1.75 | $ 3.30 | $ 2.99
PSE&G [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Quarterly Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues | $ 1,475 |  | $ 1,684 | $ 1,350 | $ 1,712 | $ 1,402 |  | $ 1,766 | $ 1,466 | $ 2,002 | $ 6,221 | $ 6,636 | $ 6,766
Operating Income (Loss) | 369 |  | 450 | 333 | 462 | 287 |  | 404 | 320 | 451 | 1,614 | 1,462 | 1,393
Net Income (Loss) | 193 |  | 255 | 179 | 262 | 156 |  | 222 | 167 | 242 |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  | 889 | 787 | 725
Power [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Schedule of Quarterly Data [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Revenues | 921 |  | 1,075 | 714 | 1,313 | 1,082 |  | 1,096 | 1,025 | 1,725 | 4,023 | 4,928 | 5,434
Operating Income (Loss) | (556) |  | 238 | (12) | 343 | 227 |  | 391 | 228 | 584 | 13 | 1,430 | 1,209
Net Income (Loss) | $ (302) | [1] | $ 139 | $ (11) | $ 192 | $ 149 | [1] | $ 206 | $ 166 | $ 335 |  |  |
Net Income (Loss) |  |  |  |  |  |  |  |  |  |  | $ 18 | $ 856 | $ 760
[1] | The decreases in Operating Income at PSEG consolidated and Power in the fourth quarter 2016 as compared to the same quarter in 2015 were primarily due to costs related to closing the coal/gas Hudson and Mercer units and higher MTM losses in 2016.

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