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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Effective Tax Rate |  |  |  |
Income from continuing operations before income taxes | $ 341 | $ 380 | $ 899 | $ 666
Income tax expense from continuing operations | $ 92 | $ 6 | $ 216 | $ 9
Effective income tax rate | 27.00% | 1.60% | 24.00% | 1.40%
Uncertain Tax Benefits |  |  |  |
Non-current tax liability for uncertain tax benefits | $ 21 |  | $ 21 |
Uncertain tax benefits, penalties and interest accrued | $ 3 |  | $ 3 |

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