Financial Instruments - Schedule of Derivative Instruments in Statement of Financial Position, Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Notional Amounts	$ 10,516	$ 12,112
Fair Value, Assets	151	167
Fair Value, Liabilities	156	99
Prepaid and other current assets
Derivative [Line Items]
Fair Value, Assets	53
Other long-term assets
Derivative [Line Items]
Fair Value, Assets	98
Other current liabilities
Derivative [Line Items]
Fair Value, Liabilities	112
Other long-term liabilities
Derivative [Line Items]
Fair Value, Liabilities	44
Derivatives Not Designated as Hedging Instruments:
Derivative [Line Items]
Notional Amounts	8,341	9,713
Fair Value, Assets	96	111
Fair Value, Liabilities	140	92
Derivatives Not Designated as Hedging Instruments: \| Balance sheet items
Derivative [Line Items]
Notional Amounts	6,866	7,936
Fair Value, Assets	41	62
Fair Value, Liabilities	87	37
Derivatives Not Designated as Hedging Instruments: \| Forecasted transactions
Derivative [Line Items]
Notional Amounts	494	748
Fair Value, Assets	10	14
Fair Value, Liabilities	15	15
Derivatives Not Designated as Hedging Instruments: \| Cross-currency swaps
Derivative [Line Items]
Notional Amounts	981	1,029
Fair Value, Assets	44	35
Fair Value, Liabilities	38	40
Derivatives Not Designated as Hedging Instruments: \| Commodity contracts
Derivative [Line Items]
Fair Value, Assets	1	0
Fair Value, Liabilities	0	0
Derivatives Designated as Hedging Instruments:
Derivative [Line Items]
Notional Amounts	2,175	2,399
Fair Value, Assets	55	56
Fair Value, Liabilities	16	7
Derivatives Designated as Hedging Instruments: \| Balance sheet items
Derivative [Line Items]
Notional Amounts	0	27
Fair Value, Assets		2
Fair Value, Liabilities		3
Derivatives Designated as Hedging Instruments: \| Forecasted transactions
Derivative [Line Items]
Notional Amounts	283	464
Fair Value, Assets	3	9
Fair Value, Liabilities	12	3
Derivatives Designated as Hedging Instruments: \| Commodity contracts
Derivative [Line Items]
Fair Value, Assets	0	6
Fair Value, Liabilities	4	1
Derivatives Designated as Hedging Instruments: \| Interest rate swaps
Derivative [Line Items]
Notional Amounts	1,892	1,908
Fair Value, Assets	52	$ 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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Nominal or face amount used to calculate payment on derivative.

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