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Income Taxes - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Income Taxes - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Tax Credit Carryforward [Line Items]
Earnings and Profits (E&P) of foreign subsidiaries	$ 440
Change in valuation allowance	8	$ (15)	$ (33)
R&D tax credits	6	$ 5	$ 1
Expiration Year 2035 [Member]
Tax Credit Carryforward [Line Items]
R&D tax credits	24
U.S Federal and State [Member] \| Expiration Between Years 2036 To 2038 [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	13
U.S Federal [Member] \| Expiration Year 2026 [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	18
Foreign [Member] \| Expiration Between Years 2026 to 2029 [Member]
Tax Credit Carryforward [Line Items]
Tax loss carryforwards	3
Foreign Subsidiary Earnings [Member]
Tax Credit Carryforward [Line Items]
Change in valuation allowance	(5)
Foreign Tax Credits [Member]
Tax Credit Carryforward [Line Items]
Change in valuation allowance	$ (3)