Financial Instruments - Schedule of Derivative Instruments in Statement of Financial Position, Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Derivative [Line Items]
Notional Amounts	$ 10,471	$ 12,112
Fair Value, Assets	246	167
Fair Value, Liabilities	226	99
Prepaid and other current assets
Derivative [Line Items]
Fair Value, Assets	104
Other long-term assets
Derivative [Line Items]
Fair Value, Assets	142
Other current liabilities
Derivative [Line Items]
Fair Value, Assets	167
Other long-term liabilities
Derivative [Line Items]
Fair Value, Assets	59
Derivatives Not Designated as Hedging Instruments
Derivative [Line Items]
Notional Amounts	8,470	9,713
Fair Value, Assets	182	111
Fair Value, Liabilities	188	92
Derivatives Not Designated as Hedging Instruments \| Balance sheet items
Derivative [Line Items]
Notional Amounts	6,896	7,936
Fair Value, Assets	64	62
Fair Value, Liabilities	109	37
Derivatives Not Designated as Hedging Instruments \| Forecasted transactions
Derivative [Line Items]
Notional Amounts	580	748
Fair Value, Assets	16	14
Fair Value, Liabilities	32	15
Derivatives Not Designated as Hedging Instruments \| Cross-currency interest rate swaps
Derivative [Line Items]
Notional Amounts	994	1,029
Fair Value, Assets	102	35
Fair Value, Liabilities	44	40
Derivatives Not Designated as Hedging Instruments \| Commodity contracts
Derivative [Line Items]
Fair Value, Assets	0	0
Fair Value, Liabilities	3	0
Designated as Hedging Instrument
Derivative [Line Items]
Notional Amounts	2,001	2,399
Fair Value, Assets	64	56
Fair Value, Liabilities	38	7
Designated as Hedging Instrument \| Balance sheet items
Derivative [Line Items]
Notional Amounts	0	27
Fair Value, Assets		2
Fair Value, Liabilities		3
Designated as Hedging Instrument \| Forecasted transactions
Derivative [Line Items]
Notional Amounts	136	464
Fair Value, Assets	13	9
Fair Value, Liabilities	24	3
Designated as Hedging Instrument \| Commodity contracts
Derivative [Line Items]
Fair Value, Assets	0	6
Fair Value, Liabilities	14	1
Designated as Hedging Instrument \| Interest rate swaps
Derivative [Line Items]
Notional Amounts	1,865	1,908
Fair Value, Assets	51	$ 39
Fair Value, Liabilities	$ 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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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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Nominal or face amount used to calculate payment on derivative.

+ References

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