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Discontinued Operations and Dispositions (Tables) | 3 Months Ended
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Mar. 31, 2020
Discontinued Operations and Disposal Groups [Abstract] |
Summary of Results of Discontinued Operations | Summarized results of the South Central Portfolio discontinued operations were as follows:
|  | Three months ended |  |  |  |  |
(In millions) |  |  | March 31, 2019 |  |  |  |
Operating revenues |  |  | $ | 31 |  |  |  |  |
Operating costs and expenses |  |  | (23) |  |  |  |  |
Gain from operations of discontinued components |  |  | 8 |  |  |  |  |
Gain on disposal of discontinued operations, net of tax |  |  | 27 |  |  |  |  |
Gain from discontinued operations, including disposal, net of tax |  |  | $ | 35 |  |  |  |  |
Summarized results of Carlsbad discontinued operations were as follows:
|  | Three months ended |  |  |  |  |
(In millions) |  |  | March 31, 2019 |  |  |  |
Operating revenues |  |  | $ | 19 |  |  |  |  |
Operating costs and expenses |  |  | (9) |  |  |  |  |
Other expenses |  |  | (5) |  |  |  |  |
Gain from operations of discontinued components |  |  | 5 |  |  |  |  |
Gain on disposal of discontinued operations, net of tax |  |  | 348 |  |  |  |  |
Gain from discontinued operations, including disposal, net of tax |  |  | $ | 353 |  |  |  |  |

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