Derivatives and Hedging - Notional and Fair Values of Derivative Instruments (Details) - Foreign exchange contracts - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value
Notional Amount	$ 1,030	$ 876
Derivative Assets	22	18
Derivative Liabilities	$ 1	1
Term of derivative contract	30 days
Other current assets
Derivatives, Fair Value
Derivative Assets	$ 6	7
Other non-current assets
Derivatives, Fair Value
Derivative Assets	16	11
Other current liabilities
Derivatives, Fair Value
Derivative Liabilities	1	1
Accounted for as hedges
Derivatives, Fair Value
Notional Amount	629	579
Derivative Assets	22	16
Derivative Liabilities	0	1
Not designated as hedging instrument
Derivatives, Fair Value
Notional Amount	401	297
Derivative Assets	0	2
Derivative Liabilities	$ 1	$ 0

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Balance Type:	debit
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- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4D
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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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- Definition

Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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