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Discontinued Operations Income Statement (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Sep. 30, 2018 | Sep. 30, 2017
Expenses |  |  |  |
Net income (loss) from discontinued operations | $ (2) | $ (4) | $ 5 | $ 857
Tempo Business | Discontinued Operations, Disposed of by Sale |  |  |  |
Revenue |  |  |  |
Total revenue | 0 | 0 | 0 | 698
Expenses |  |  |  |
Total operating expenses | 4 | 14 | 7 | 640
Operating income (loss) from discontinued operations | (4) | (14) | (7) | 58
Other income (expense) | 0 | (1) | 0 | 10
Income (loss) from discontinued operations before income taxes | (4) | (15) | (7) | 68
Income tax expense (benefit) | (2) | (6) | (3) | 14
Net income (loss) from discontinued operations excluding gain | (2) | (9) | (4) | 54
Gain on sale of discontinued operations, net of tax | 0 | 5 | 9 | 803
Net income (loss) from discontinued operations | $ (2) | $ (4) | $ 5 | $ 857

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