The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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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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Nominal or face amount used to calculate payment on derivative.

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

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The net amount of operating interest income (expense).

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Derivative Instruments - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Derivative [Line Items]
Net interest income (expense)	$ (40)	$ (37)	$ (74)	$ (73)
Designated as Hedging Instrument \| Foreign exchange forward contracts
Derivative [Line Items]
Net losses related to cash flow hedges expected to be reclassified into earnings in the next twelve months			1
Fair Value Hedging \| Not Designated as Hedging Instrument \| Foreign exchange forward contracts
Derivative [Line Items]
Aggregate notional value	167		167		$ 116
Net gain (loss) on derivative	7	$ 3	(4)	$ 5
Cash Flow Hedging \| Designated as Hedging Instrument \| Foreign exchange forward contracts
Derivative [Line Items]
Aggregate notional value	442		$ 442		249
Maturity of derivatives			24 months
Net Investment Hedging \| Cross currency swaps
Derivative [Line Items]
Net interest income (expense)	2		$ 5
Net Investment Hedging \| Designated as Hedging Instrument \| Cross currency swaps
Derivative [Line Items]
Aggregate notional value	1,000		1,000		$ 400
Other current liabilities \| Fair Value Hedging \| Not Designated as Hedging Instrument \| Foreign exchange forward contracts
Derivative [Line Items]
Aggregate notional value	$ 2		$ 2