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Income Taxes - GILTI and Valuation allowance (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Taxes |  |  |
Amount of tax benefit from GILTI high-tax exclusion election | $ 5 |  |
Net impact of global intangible low-taxed income ("GILTI") (as a percent) | (1.00%) | 1.20% | 1.00%
Increase in valuation allowance of foreign subsidiary net deferred tax assets | $ 3 | $ 2 | $ 6
Percentage increase in valuation allowance of foreign subsidiary net deferred tax assets | 0.6 | 0.3 | 1.0

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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to global intangible low-taxed income ("GILTI"). + References No definition available. + Details
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- Definition Amount of tax benefit as a result of global intangible low-taxed income (GILTI) high-tax exclusion election. + References No definition available. + Details
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- Definition The amount of increase in the valuation allowance on the net deferred tax assets of a foreign subsidiary. + References No definition available. + Details
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- Definition The percentage increase in the valuation allowance on the net deferred tax assets of a foreign subsidiary. + References No definition available. + Details
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- References No definition available. + Details
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