Fair Value Measurements and Financial Instruments - Fair Value of Derivative Instruments and Other Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Designated derivative instruments
Derivative asset	$ 29	$ 10
Derivative liability	93	29
Other financial instruments
Investments fair value	37	23
Other assets \| Interest rate swap contracts
Designated derivative instruments
Derivative asset	14	4
Other assets \| Forward-starting interest rate swaps
Designated derivative instruments
Derivative asset	5	0
Other assets \| Foreign currency contracts
Designated derivative instruments
Derivative asset	0	0
Other current assets
Other financial instruments
Marketable securities	37	23
Other current assets \| Foreign currency contracts
Designated derivative instruments
Derivative asset	7	6
Other current assets \| Commodity contracts
Designated derivative instruments
Derivative asset	3	0
Other liabilities \| Interest rate swap contracts
Designated derivative instruments
Derivative liability	0	0
Other liabilities \| Forward-starting interest rate swaps
Designated derivative instruments
Derivative liability	0	0
Other liabilities \| Foreign currency contracts
Designated derivative instruments
Derivative liability	0	14
Other accruals \| Foreign currency contracts
Designated derivative instruments
Derivative liability	93	15
Other accruals \| Commodity contracts
Designated derivative instruments
Derivative liability	$ 0	$ 0

Fair value, after the 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 not subject to a master netting arrangement and not elected to be offset.

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Fair value, after the 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 not subject to a master netting arrangement and not elected to be offset.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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-Publisher FASB
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Amount of investment in marketable security.

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