Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Effective income tax expense (benefit) rate	6.00%	(544.00%)
Tax benefit from settlement		$ 126
Tax benefit from internal restructuring	$ 18
Effective income tax expense (benefit) rate, excluding discrete items		8.00%
Income tax receivable, current	$ 86

Effective Income Tax Rate Reconciliation, Internal Restructuring, Amount

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Effective Income Tax Rate Reconciliation, Percent, Excluding Discrete Items

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount 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 foreign income tax settlement.

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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