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v3.7.0.1

Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016 | Dec. 31, 2016
Segment Financial Information |  |  |  |  |  |
Revenues |  | $ 3,309 | $ 3,401 | $ 6,861 | $ 7,270 |
Revenues | [1] | 3,309 | 3,401 | 6,861 | 7,270 |
Depreciation |  | 281 | 334 | 556 | 663 |
Amortization of regulatory assets, net |  | 65 | 63 | 124 | 124 |
Impairment of assets (Note 14) |  | 131 | 1,447 | 131 | 1,447 |
Investment income |  | 17 | 19 | 41 | 47 |
Interest expense |  | 290 | 289 | 577 | 577 |
Income taxes (benefits) |  | 117 | (130) | 243 | 83 |
NET INCOME (LOSS) |  | 174 | (1,089) | 379 | (761) |
Total assets |  | 43,327 | 51,401 | 43,327 | 51,401 | $ 43,148
Goodwill |  | 5,618 | 5,618 | 5,618 | 5,618 | $ 5,618
Property additions |  | 666 | 794 | 1,254 | 1,492 |
Regulated Distribution |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Impairment of assets (Note 14) |  | 0 |  |  |  |
Regulated Transmission |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Impairment of assets (Note 14) |  | 0 |  |  |  |
Competitive Energy Services |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Impairment of assets (Note 14) |  | 131 |  |  |  |
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 |  | 2,262 | 2,189 | 4,752 | 4,699 |
Revenues |  | 2,262 | 2,189 | 4,752 | 4,699 |
Depreciation |  | 179 | 168 | 357 | 335 |
Amortization of regulatory assets, net |  | 62 | 61 | 119 | 120 |
Impairment of assets (Note 14) |  |  | 0 | 0 | 0 |
Investment income |  | 14 | 13 | 28 | 24 |
Interest expense |  | 134 | 148 | 272 | 298 |
Income taxes (benefits) |  | 121 | 80 | 259 | 174 |
NET INCOME (LOSS) |  | 205 | 139 | 442 | 297 |
Total assets |  | 27,660 | 27,448 | 27,660 | 27,448 |
Goodwill |  | 5,004 | 5,004 | 5,004 | 5,004 |
Property additions |  | 304 | 287 | 568 | 528 |
Operating Segments | Regulated Transmission |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 327 | 275 | 640 | 561 |
Revenues |  | 327 | 275 | 640 | 561 |
Depreciation |  | 54 | 46 | 105 | 91 |
Amortization of regulatory assets, net |  | 3 | 2 | 5 | 4 |
Impairment of assets (Note 14) |  |  | 0 | 0 | 0 |
Investment income |  | 0 | 0 | 0 | 0 |
Interest expense |  | 39 | 39 | 78 | 79 |
Income taxes (benefits) |  | 53 | 46 | 105 | 93 |
NET INCOME (LOSS) |  | 92 | 78 | 180 | 159 |
Total assets |  | 9,142 | 8,314 | 9,142 | 8,314 |
Goodwill |  | 614 | 614 | 614 | 614 |
Property additions |  | 245 | 277 | 469 | 556 |
Operating Segments | Competitive Energy Services |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 778 | 1,008 | 1,592 | 2,160 |
Revenues |  | 864 | 1,116 | 1,795 | 2,420 |
Depreciation |  | 29 | 103 | 57 | 205 |
Amortization of regulatory assets, net |  | 0 | 0 | 0 | 0 |
Impairment of assets (Note 14) |  |  | 1,447 | 131 | 1,447 |
Investment income |  | 12 | 18 | 32 | 33 |
Interest expense |  | 47 | 48 | 92 | 95 |
Income taxes (benefits) |  | (30) | (230) | (65) | (145) |
NET INCOME (LOSS) |  | (56) | (1,259) | (123) | (1,115) |
Total assets |  | 5,887 | 15,464 | 5,887 | 15,464 |
Goodwill |  | 0 | 0 | 0 | 0 |
Property additions |  | 96 | 213 | 188 | 382 |
Corporate/Other |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 0 | 0 | 0 | 0 |
Revenues |  | 0 | 0 | 0 | 0 |
Depreciation |  | 19 | 17 | 37 | 32 |
Amortization of regulatory assets, net |  | 0 | 0 | 0 | 0 |
Impairment of assets (Note 14) |  |  | 0 | 0 | 0 |
Investment income |  | 2 | 0 | 5 | 11 |
Interest expense |  | 70 | 54 | 135 | 105 |
Income taxes (benefits) |  | (27) | (26) | (56) | (39) |
NET INCOME (LOSS) |  | (67) | (47) | (120) | (102) |
Total assets |  | 638 | 175 | 638 | 175 |
Goodwill |  | 0 | 0 | 0 | 0 |
Property additions |  | 21 | 17 | 29 | 26 |
Intersegment Eliminations |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | (86) | (108) | (203) | (260) |
Intersegment Eliminations | Competitive Energy Services |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | 86 | 108 | 203 | 260 |
Reconciling Adjustments |  |  |  |  |  |
Segment Financial Information |  |  |  |  |  |
Revenues |  | (58) | (71) | (123) | (150) |
Revenues |  | (144) | (179) | (326) | (410) |
Depreciation |  | 0 | 0 | 0 | 0 |
Amortization of regulatory assets, net |  | 0 | 0 | 0 | 0 |
Impairment of assets (Note 14) |  |  | 0 | 0 | 0 |
Investment income |  | (11) | (12) | (24) | (21) |
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 $91 million and $92 million in the three months ended June 30, 2017 and 2016, respectively, and $191 million and $199 million in the six months ended June 30, 2017 and 2016, respectively.

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