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Consolidated Statements Of Comprehensive Income (Loss) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Statements of Comprehensive Income (Loss) |  |  |
Net income (loss) | $ (359) | $ (296) | $ (1,605)
Unrealized gains (losses) on available-for-sale securities: [Abstract] |  |  |
Unrealized gains (losses) arising during the period | 139 | (60) | (22)
Provision (benefit) for income taxes | 0 | 5 | (1)
Total | 139 | (65) | (21)
Reclassification adjustments for (gains) losses included in net income (loss) | (13) | (5) | 2
Available-for-sale securities with other-than-temporary impairments: [Abstract] |  |  |
Other-than-temporary impairments and unrealized gains (losses) arising during the period | 0 | 41 | (3)
Reclassification adjustments for (gains) losses included in net income (loss) | 25 | 5 | 7
Provision (benefit) for income taxes | 0 | 0 | 1
Total | 25 | 5 | 6
Foreign currency translation: [Abstract] |  |  |
Foreign currency translation gains (losses) | 0 | 2 | 146
Provision (benefit) for income taxes | 0 | 0 | 21
Total | 0 | 2 | 125
Instrument-specific credit risk of liabilities measured at fair value: [Abstract] |  |  |
Unrealized gains (losses) arising during the period | (25) | 52 | 0
Reclassification adjustments for (gains) losses included in net income (loss) | 28 | 0 | 0
Total other comprehensive income (loss) | 154 | 30 | 109
Comprehensive income (loss) | $ (205) | $ (266) | $ (1,496)

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