v3.19.3

Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating Loss Carryforwards [Line Items]
Provision for income taxes	$ 3	$ 1	$ 20	$ 605
Reserve on uncertain tax positions	1,300		1,300
Increase in gross unrecognized tax benefits			1,300
Settlement with Taxing Authority
Operating Loss Carryforwards [Line Items]
Expected decrease resulting from settlements with taxing authorities	141		141
Foreign Deferred Tax Asset, Intellectual Property
Operating Loss Carryforwards [Line Items]
Step-up tax basis, intellectual property, foreign assets	$ 6,100		$ 6,100

X

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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