Fair Value of Assets and Liabilities (Details) - Fair Value, Recurring [Member] - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	$ 15	$ 8
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	15	8
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	2	5
Assets, Fair Value Disclosure	2	5
Foreign Currency Contracts, Liability, Fair Value Disclosure	1	1
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1	1
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	0	0
Foreign Currency Contract, Asset, Fair Value Disclosure	0	0
Assets, Fair Value Disclosure	0	0
Foreign Currency Contracts, Liability, Fair Value Disclosure	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Estimate of Fair Value Measurement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and Cash Equivalents, Fair Value Disclosure	15	8
Foreign Currency Contract, Asset, Fair Value Disclosure	2	5
Assets, Fair Value Disclosure	17	13
Foreign Currency Contracts, Liability, Fair Value Disclosure	1	1
Financial and Nonfinancial Liabilities, Fair Value Disclosure	$ 1	$ 1