Derivative Instruments - Schedule of Derivative Instruments Measured at Fair Value in Statement of Financial Position (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 34	$ 1
Derivative Liabilities	(2)	(25)
Level 2 \| Derivatives designated as hedges \| Cross-currency swap agreements \| Other Current Assets and Other Current Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	135
Level 2 \| Derivatives designated as hedges \| Cross-currency swap agreements \| Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	0
Level 2 \| Derivatives designated as hedges \| Cross-currency swap agreements \| Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	(2)
Level 2 \| Derivatives designated as hedges \| Cross-currency swap agreements \| Other Long Term Assets and Other Long Term Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	1,083	1,233
Level 2 \| Derivatives designated as hedges \| Cross-currency swap agreements \| Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative Assets	30	0
Level 2 \| Derivatives designated as hedges \| Cross-currency swap agreements \| Other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0	(18)
Level 2 \| Derivatives designated as hedges \| Interest rate swap \| Other Current Assets and Other Current Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount		2,003
Level 2 \| Derivatives designated as hedges \| Interest rate swap \| Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets		0
Level 2 \| Derivatives designated as hedges \| Interest rate swap \| Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities		(7)
Level 2 \| Derivatives not designated as hedges \| Foreign currency option contracts \| Other Current Assets and Other Current Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	312	365
Level 2 \| Derivatives not designated as hedges \| Foreign currency option contracts \| Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	4	1
Level 2 \| Derivatives not designated as hedges \| Foreign currency option contracts \| Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 0	$ 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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- 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.

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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
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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.

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