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v3.8.0.1

Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016 | Dec. 31, 2016
Segment Financial Information |  |  |  |  |  |
Revenues |  | $ 3,714 | $ 3,917 | $ 10,575 | $ 11,187 |
Revenues | [1] | 3,714 | 3,917 | 10,575 | 11,187 |
Depreciation |  | 289 | 311 | 845 | 974 |
Amortization of regulatory assets, net |  | 91 | 98 | 215 | 222 |
Impairment of assets (Note 14) |  | 31 | 0 | 162 | 1,447 |
Investment income |  | 37 | 28 | 78 | 75 |
Interest expense |  | 305 | 286 | 882 | 863 |
Income taxes (benefits) |  | 239 | 251 | 482 | 334 |
NET INCOME (LOSS) |  | 396 | 380 | 775 | (381) |
Total assets |  | 43,649 | 51,961 | 43,649 | 51,961 | $ 43,148
Goodwill |  | 5,618 | 5,618 | 5,618 | 5,618 | $ 5,618
Property additions |  | 593 | 664 | 1,847 | 2,156 |
Regulated Distribution |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Impairment of assets (Note 14) |  | 0 |  |  |  |
Regulated Transmission |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Impairment of assets (Note 14) |  | 13 |  |  |  |
Competitive Energy Services |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Impairment of assets (Note 14) |  | 18 |  |  |  |
Other Business Operations [Member] |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Impairment of assets (Note 14) |  | 0 |  |  |  |
Reconciling Adjustments [Member] |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Impairment of assets (Note 14) |  | 0 |  |  |  |
Operating Segments | Regulated Distribution |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 2,610 | 2,691 | 7,362 | 7,390 |
Revenues |  | 2,610 | 2,691 | 7,362 | 7,390 |
Depreciation |  | 183 | 169 | 540 | 504 |
Amortization of regulatory assets, net |  | 85 | 98 | 204 | 218 |
Impairment of assets (Note 14) |  |  |  | 0 | 0 |
Investment income |  | 13 | 13 | 41 | 37 |
Interest expense |  | 133 | 143 | 405 | 441 |
Income taxes (benefits) |  | 183 | 162 | 442 | 336 |
NET INCOME (LOSS) |  | 314 | 276 | 756 | 573 |
Total assets |  | 27,866 | 27,818 | 27,866 | 27,818 |
Goodwill |  | 5,004 | 5,004 | 5,004 | 5,004 |
Property additions |  | 286 | 281 | 854 | 809 |
Operating Segments | Regulated Transmission |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 342 | 294 | 982 | 851 |
Revenues |  | 342 | 294 | 982 | 851 |
Depreciation |  | 59 | 47 | 164 | 138 |
Amortization of regulatory assets, net |  | 6 | 0 | 11 | 4 |
Impairment of assets (Note 14) |  |  |  | 13 | 0 |
Investment income |  | 0 | 0 | 0 | 0 |
Interest expense |  | 38 | 39 | 116 | 118 |
Income taxes (benefits) |  | 49 | 50 | 154 | 143 |
NET INCOME (LOSS) |  | 84 | 85 | 264 | 244 |
Total assets |  | 9,356 | 8,492 | 9,356 | 8,492 |
Goodwill |  | 614 | 614 | 614 | 614 |
Property additions |  | 248 | 268 | 717 | 824 |
Operating Segments | Competitive Energy Services |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 796 | 998 | 2,388 | 3,158 |
Revenues |  | 889 | 1,115 | 2,684 | 3,535 |
Depreciation |  | 30 | 79 | 87 | 284 |
Amortization of regulatory assets, net |  | 0 | 0 | 0 | 0 |
Impairment of assets (Note 14) |  |  |  | 149 | 1,447 |
Investment income |  | 34 | 23 | 66 | 56 |
Interest expense |  | 44 | 48 | 136 | 143 |
Income taxes (benefits) |  | 40 | 49 | (25) | (96) |
NET INCOME (LOSS) |  | 66 | 86 | (57) | (1,029) |
Total assets |  | 5,814 | 15,165 | 5,814 | 15,165 |
Goodwill |  | 0 | 0 | 0 | 0 |
Property additions |  | 45 | 110 | 233 | 492 |
Corporate/Other |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 0 | 0 | 0 | 0 |
Revenues |  | 0 | 0 | 0 | 0 |
Depreciation |  | 17 | 16 | 54 | 48 |
Amortization of regulatory assets, net |  | 0 | 0 | 0 | 0 |
Impairment of assets (Note 14) |  |  |  | 0 | 0 |
Investment income |  | 3 | 2 | 8 | 13 |
Interest expense |  | 90 | 56 | 225 | 161 |
Income taxes (benefits) |  | (33) | (10) | (89) | (49) |
NET INCOME (LOSS) |  | (68) | (67) | (188) | (169) |
Total assets |  | 613 | 486 | 613 | 486 |
Goodwill |  | 0 | 0 | 0 | 0 |
Property additions |  | 14 | 5 | 43 | 31 |
Intersegment Eliminations |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | (93) | (117) | (296) | (377) |
Intersegment Eliminations | Competitive Energy Services |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 93 | 117 | 296 | 377 |
Reconciling Adjustments |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | (34) | (66) | (157) | (212) |
Revenues |  | (127) | (183) | (453) | (589) |
Depreciation |  | 0 | 0 | 0 | 0 |
Amortization of regulatory assets, net |  | 0 | 0 | 0 | 0 |
Impairment of assets (Note 14) |  |  |  | 0 | 0 |
Investment income |  | (13) | (10) | (37) | (31) |
Interest expense |  | 0 | 0 | 0 | 0 |
Income taxes (benefits) |  | 0 | 0 | 0 | 0 |
NET INCOME (LOSS) |  | 0 | 0 | 0 | 0 |
Total assets |  | 0 | 0 | 0 | 0 |
Goodwill |  | 0 | 0 | 0 | 0 |
Property additions |  | $ 0 | $ 0 | $ 0 | $ 0 |
[1] | Includes excise tax collections of $102 million and $111 million in the three months ended September 30, 2017 and 2016, respectively, and $293 million and $310 million in the nine months ended September 30, 2017 and 2016, respectively.

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